{"id":3209,"date":"2024-07-02T11:00:05","date_gmt":"2024-07-02T08:00:05","guid":{"rendered":"https:\/\/innfes.com\/vi\/the-slope-of-the-roof-in-degrees-and-percentage\/"},"modified":"2024-07-02T11:00:05","modified_gmt":"2024-07-02T08:00:05","slug":"the-slope-of-the-roof-in-degrees-and-percentage","status":"publish","type":"post","link":"https:\/\/innfes.com\/vi\/the-slope-of-the-roof-in-degrees-and-percentage\/","title":{"rendered":"\u0110\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i b\u1eb1ng \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m"},"content":{"rendered":"\n<p>\u0110i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i hi\u1ec3u \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 cho tu\u1ed5i th\u1ecd, ch\u1ee9c n\u0103ng v\u00e0 thi\u1ebft k\u1ebf c\u1ee7a n\u00f3. Tuy\u1ebft v\u00e0 n\u01b0\u1edbc m\u01b0a tho\u00e1t ra kh\u1ecfi b\u1ec1 m\u1eb7t c\u1ee7a m\u00e1i nh\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi \u0111\u1ed9 d\u1ed1c c\u1ee7a n\u00f3, th\u01b0\u1eddng \u0111\u01b0\u1ee3c n\u00eau \u1edf c\u1ea3 hai \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. \u0110\u00f3 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u l\u1ee3p v\u00e0 ph\u01b0\u01a1ng ph\u00e1p x\u00e2y d\u1ef1ng.<\/p>\n<p>C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 \u0111o \u0111\u1ed9 d\u1ed1c m\u00e1i: \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. G\u00f3c nghi\u00eang t\u1eeb m\u1eb7t ph\u1eb3ng ngang \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng \u0111\u1ed9. Ch\u1eb3ng h\u1ea1n, m\u1ed9t \u0111\u1ed9 d\u1ed1c 45 \u0111\u1ed9, t\u0103ng 45 \u0111\u1ed9 cho m\u1ed7i l\u1ea7n ch\u1ea1y ngang. Ng\u01b0\u1ee3c l\u1ea1i, t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m \u0111\u1ea1i di\u1ec7n, theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m, t\u1ef7 l\u1ec7 t\u0103ng theo chi\u1ec1u d\u1ecdc so v\u1edbi ch\u1ea1y ngang. \u0110\u1ed9 d\u1ed1c 100% cho th\u1ea5y m\u1ee9c t\u0103ng 1 m\u00e9t theo chi\u1ec1u d\u1ecdc cho m\u1ed7i m\u00e9t kho\u1ea3ng c\u00e1ch ngang.<\/p>\n<p>C\u00e1ch m\u1ed9t m\u00e1i nh\u00e0 \u0111\u1ed5 n\u01b0\u1edbc v\u00e0 tuy\u1ebft hi\u1ec7u qu\u1ea3 v\u00e0 c\u00f3 v\u1ebb t\u1ed1t b\u1ecb \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp b\u1edfi \u0111\u1ed9 d\u1ed1c c\u1ee7a n\u00f3. \u0110\u1ed9 d\u1ed1c d\u1ed1c h\u01a1n \u0111\u01b0\u1ee3c \u01b0a th\u00edch \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 l\u01b0\u1ee3ng m\u01b0a cao ho\u1eb7c tuy\u1ebft r\u01a1i \u0111\u1ec3 tr\u00e1nh t\u00edch t\u1ee5 n\u01b0\u1edbc, theo th\u1eddi gian c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u1ea5u tr\u00fac v\u00e0 thi\u1ec7t h\u1ea1i n\u01b0\u1edbc. M\u1eb7t kh\u00e1c, c\u00e1c s\u01b0\u1eddn d\u1ed1c c\u00f3 th\u1ec3 \u0111\u1ee7 \u1edf v\u00f9ng kh\u00ed h\u1eadu kh\u00f4 h\u01a1n.<\/p>\n<p>\u0110\u1ed9 d\u1ed1c m\u00e1i l\u00fd t\u01b0\u1edfng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c ki\u1ebfn \u200b\u200btr\u00fac s\u01b0 v\u00e0 nh\u00e0 x\u00e2y d\u1ef1ng sau khi xem x\u00e9t c\u1ea9n th\u1eadn v\u1ec1 kh\u00ed h\u1eadu \u0111\u1ecba ph\u01b0\u01a1ng, m\u00e3 x\u00e2y d\u1ef1ng v\u00e0 th\u1ea9m m\u1ef9 mong mu\u1ed1n. S\u1ef1 l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u1ed1c kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c ho\u1ea1t \u0111\u1ed9ng m\u00e1i nh\u00e0 t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o m\u00e0 c\u1ea3 thi\u1ebft k\u1ebf t\u1ed5ng th\u1ec3 c\u1ee7a t\u00f2a nh\u00e0 tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n<table>\n<tbody>\n<tr>\n<td>\u0110\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0<\/td>\n<td>S\u00e2n tr\u00ean m\u00e1i b\u1eb1ng \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1i b\u1eb1ng ph\u1eb3ng<\/td>\n<td>G\u1ea7n nh\u01b0 ngang, d\u01b0\u1edbi 2 \u0111\u1ed9 (d\u01b0\u1edbi 3.5%)<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1i nh\u00e0 th\u1ea5p<\/td>\n<td>2 \u0111\u1ebfn 20 \u0111\u1ed9 (3.5% \u0111\u1ebfn 36.4%)<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1i d\u1ed1c v\u1eeba ph\u1ea3i<\/td>\n<td>20 \u0111\u1ebfn 45 \u0111\u1ed9 (36.4% \u0111\u1ebfn 100%)<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1i d\u1ed1c d\u1ed1c<\/td>\n<td>H\u01a1n 45 \u0111\u1ed9 (h\u01a1n 100%)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>T\u1ea1i sao b\u1ea1n c\u1ea7n bi\u1ebft \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0<\/h2>\n<p>\u0110\u1ed1i ph\u00f3 v\u1edbi \u0111\u1ed9 d\u1ed1c v\u1ec1 \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m l\u00e0 kh\u00f4ng th\u1ec3 n\u1ebfu kh\u00f4ng n\u1eafm b\u1eaft ch\u00ednh x\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y. \u1ea2nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 d\u1ed1c c\u1ee7a s\u01b0\u1eddn d\u1ed1c l\u00e0 g\u00ec?<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_6.jpg\"><\/p>\n<p>Lo\u1ea1i v\u1eadt li\u1ec7u l\u1ee3p<\/p>\n<p>Nh\u1eefng n\u1ed7 l\u1ef1c v\u1edbi gi\u00f3 v\u00e0 tuy\u1ebft<\/p>\n<p>B\u1ea3ng ch\u1ec9 ra r\u1eb1ng m\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng Rafter c\u1ee7a ng\u00f4i nh\u00e0 l\u00e0 g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a c\u00e1c s\u01b0\u1eddn d\u1ed1c. N\u00f3 \u0111\u01b0\u1ee3c xem x\u00e9t ngay t\u1eeb khi b\u1eaft \u0111\u1ea7u s\u1ea3n xu\u1ea5t c\u1ee7a d\u1ef1 \u00e1n x\u00e2y d\u1ef1ng.<\/p>\n<h2>T\u1ea1i sao b\u1ea1n c\u1ea7n bi\u1ebft g\u00f3c nghi\u00eang<\/h2>\n<p>T\u00e0i li\u1ec7u thi\u1ebft k\u1ebf x\u00e2y d\u1ef1ng xem x\u00e9t m\u1ed9t lo\u1ea1t c\u00e1c y\u1ebfu t\u1ed1 \u0111\u1ed9c \u0111\u00e1o v\u00e0 c\u00e1c chuy\u00ean gia c\u1ed1 g\u1eafng \u0111\u00e1p \u1ee9ng c\u00e0ng nhi\u1ec1u y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng c\u00e0ng t\u1ed1t. Nh\u01b0ng ch\u1ec9 cung c\u1ea5p r\u1eb1ng mong mu\u1ed1n c\u1ee7a h\u1ecd tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i v\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c c\u1ea5u tr\u00fac.<\/p>\n<p>M\u00e1i nh\u00e0 l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n quan tr\u1ecdng nh\u1ea5t c\u1ee7a b\u1ea5t k\u1ef3 t\u00f2a nh\u00e0 ho\u1eb7c c\u1ea5u tr\u00fac n\u00e0o. Khi thi\u1ebft k\u1ebf m\u1ed9t m\u00e1i nh\u00e0, an to\u00e0n, \u0111\u1ed9 tin c\u1eady v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng l\u00e0 nh\u1eefng c\u00e2n nh\u1eafc quan tr\u1ecdng h\u01a1n so v\u1edbi ch\u00ednh thi\u1ebft k\u1ebf. Trong c\u00e1c t\u00f2a nh\u00e0 \u0111\u01b0\u01a1ng \u0111\u1ea1i, m\u00e1i nh\u00e0 d\u1eebng m\u1ea5t n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t ngo\u00e0i vi\u1ec7c che ch\u1eafn c\u1ea5u tr\u00fac kh\u1ecfi l\u01b0\u1ee3ng m\u01b0a kh\u00ed quy\u1ec3n.<\/p>\n<h3>G\u00f3c m\u00e1i \u0111\u1ea7u h\u1ed3i<\/h3>\n<h3>Gi\u00e1 brus<\/h3>\n<p><s>G\u1ea1ch<\/s><\/p>\n<h2>Trong gi\u00e1 tr\u1ecb n\u00e0o, g\u00f3c \u0111\u1ed9 nghi\u00eang \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng<\/h2>\n<p>Tho\u1ea1t nh\u00ecn, m\u1ed9t c\u00e2u h\u1ecfi r\u1ea5t k\u1ef3 l\u1ea1. Trong h\u00e0ng tr\u0103m n\u0103m, t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 khoa h\u1ecdc tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 \u0111o g\u00f3c \u0111\u1ed9 nghi\u00eang v\u1ec1 m\u1ee9c \u0111\u1ed9 ho\u1eb7c ppm. V\u00e0 c\u00e1c nh\u00e0 x\u00e2y d\u1ef1ng g\u1ea7n \u0111\u00e2y \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t s\u1ed1 ph\u00e9p \u0111o nhi\u1ec1u h\u01a1n v\u1ec1 g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a c\u00e1c s\u01b0\u1eddn d\u1ed1c. T\u1ea1i sao n\u00f3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n cho ch\u00fang t\u00f4i kh\u00f4ng r\u00f5, v\u00ec kh\u00f4ng bi\u1ebft r\u1eb1ng h\u1ecd t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho s\u1ef1 quan t\u00e2m, th\u00ec t\u00ednh to\u00e1n n\u00e0o d\u1ec5 th\u1ef1c hi\u1ec7n h\u01a1n v\u1edbi s\u1ef1 gi\u00fap \u0111\u1ee1 c\u1ee7a h\u1ecd, l\u00e0m th\u1ebf n\u00e0o h\u1ecd c\u00f3 th\u1ec3 thay th\u1ebf r\u00f5 r\u00e0ng b\u1eb1ng c\u1ea5p. V\u00ed d\u1ee5: n\u1ebfu kh\u00e1ch h\u00e0ng bi\u1ebft r\u1eb1ng g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a c\u00e1c s\u01b0\u1eddn l\u00e0 45 \u00b0, th\u00ec anh ta \u0111\u1ea1i di\u1ec7n v\u1edbi xu h\u01b0\u1edbng m\u00e0 anh ta c\u00f3 m\u1ed9t m\u00e1i nh\u00e0. V\u00e0 n\u1ebfu anh ta n\u00f3i v\u1edbi anh ta r\u1eb1ng g\u00f3c \u0111\u1ed9 nghi\u00eang l\u00e0 50%, th\u00ec m\u00e1i nh\u00e0 anh ta ph\u1ea3i t\u01b0\u1edfng t\u01b0\u1ee3ng?<\/p>\n<h2>T\u1ea1i sao b\u1ea1n c\u1ea7n m\u1ed9t g\u00f3c nghi\u00eang m\u00e1i<\/h2>\n<p>G\u00f3c nghi\u00eang l\u00fd t\u01b0\u1edfng \u0111\u01b0\u1ee3c ch\u1ecdn b\u1edfi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf d\u1ef1a tr\u00ean lo\u1ea1i m\u00e1i nh\u00e0 v\u00e0 v\u00f9ng kh\u00ed h\u1eadu c\u1ee7a t\u00f2a nh\u00e0. Gi\u00e1 tr\u1ecb n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u01b0\u01a1ng lai cho m\u1ed9t lo\u1ea1t c\u00e1c t\u00ednh to\u00e1n h\u1ec7 th\u1ed1ng Rafter. Nh\u1eefng g\u00ec b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi g\u00f3c \u0111\u1ed9 nghi\u00eang?<\/p>\n<ol>\n<li><strong>K\u00edch th\u01b0\u1edbc tuy\u1ebfn t\u00ednh c\u1ee7a ch\u00e2n rafter<\/strong>. V\u1edbi g\u00f3c \u0111\u1ed9 nghi\u00eang, gi\u00e1 tr\u1ecb c\u1ee7a nh\u1eefng n\u1ed7 l\u1ef1c d\u1ecdc v\u00e0 ngang thay \u0111\u1ed5i. Kh\u00f4ng c\u00f3 g\u00f3c \u0111\u1ed9 nghi\u00eang, ngay c\u1ea3 khoa h\u1ecdc khoa h\u1ecdc c\u0169ng kh\u00f4ng gi\u00fap t\u00ednh to\u00e1n c\u00e1c gi\u00e1 tr\u1ecb t\u1ea3i th\u1ef1c t\u1ebf v\u00e0 tr\u00ean c\u01a1 s\u1edf c\u00e1c d\u1eef li\u1ec7u n\u00e0y, chi\u1ec1u r\u1ed9ng v\u00e0 \u0111\u1ed9 d\u00e0y c\u1ee7a g\u1ed7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m cho ch\u00e2n rafter \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/li>\n<li><strong>B\u01b0\u1edbc Rhubli<\/strong>. N\u1ebfu n\u00f3 \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch s\u1eed d\u1ee5ng c\u00e1c c\u01a1 s\u1edf g\u00e1c m\u00e1i cho khu d\u00e2n c\u01b0, th\u00ec b\u01b0\u1edbc Stepin l\u00e0 ti\u00eau chu\u1ea9n trong v\u00f2ng 60 cm. \u0110i\u1ec1u n\u00e0y l\u00e0 do th\u1ef1c t\u1ebf l\u00e0 trong c\u00e1c ph\u00f2ng g\u00e1c m\u00e1i c\u1ee7a m\u00e1i nh\u00e0 c\u00e1ch nhi\u1ec7t, c\u1ee5 th\u1ec3 l\u00e0 v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t c\u00f3 chi\u1ec1u r\u1ed9ng nh\u01b0 v\u1eady. Kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec n\u1ebfu n\u00f3 \u0111\u01b0\u1ee3c \u00e9p ho\u1eb7c cu\u1ed9n len kho\u00e1ng, polystyrene, polystyrene b\u1ecdt ho\u1eb7c c\u00e1ch nhi\u1ec7t polymer kh\u00e1c. \u0110\u1ed1i v\u1edbi m\u00e1i nh\u00e0 l\u1ea1nh, kho\u1ea3ng c\u00e1ch c\u1ee7a m\u1eadt ong v\u1edbi ch\u00e2n rafter kh\u00f4ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc c\u1ee7a b\u1ea3ng v\u00e0 g\u00f3c nghi\u00eang c\u1ee7a c\u00e1c s\u01b0\u1eddn d\u1ed1c.<\/li>\n<\/ol>\n<p>  <img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_7.jpg\"><\/p>\n<p>C\u1ea7u thang gi\u1eefa c\u00e1c d\u1ea7m<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_8.jpg\"><\/p>\n<p>Ph\u1ea7n v\u00e0 \u0111\u1ed9 d\u00e0i l\u1ef1a ch\u1ecdn cho ch\u00e2n Rafter<\/p>\n<h3>M\u00e1y t\u00ednh than chi\u1ec1u d\u00e0i Rraft<\/h3>\n<h2>V\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng g\u00f3c nghi\u00eang c\u1ee7a m\u00e1i b\u1eb1ng \u0111\u1ed9<\/h2>\n<p>Ch\u1eb3ng h\u1ea1n, m\u1ed9t ng\u00f4i nh\u00e0 c\u00f3 k\u00edch th\u01b0\u1edbc 8 x 10 m\u00e9t s\u1ebd c\u00f3 m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t. \u0110\u1ed9 d\u00e0i \u0111\u1ed9 d\u1ed1c: 10 m; g\u00f3c nghi\u00eang: 20 \u00b0. Ch\u00fang t\u00f4i t\u00ednh to\u00e1n c\u00e1c k\u00edch th\u01b0\u1edbc c\u00f2n l\u1ea1i c\u1ee7a h\u1ec7 th\u1ed1ng Rafter. V\u1ebd m\u1ed9t tam gi\u00e1c h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi c\u00e1c \u0111\u1ec9nh A, B v\u00e0 C v\u00e0 c\u00e1c m\u1eb7t t\u01b0\u01a1ng \u1ee9ng A, B v\u00e0 C cho m\u1ee5c \u0111\u00edch t\u00ednh to\u00e1n.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_9.jpg\"><\/p>\n<ul>\n<li>A &#8211; Chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter (ATTIC);<\/li>\n<li>B &#8211; M\u1ed9t n\u1eeda chi\u1ec1u r\u1ed9ng c\u1ee7a ng\u00f4i nh\u00e0, m\u1ed9t gi\u00e1 tr\u1ecb \u0111\u00e3 bi\u1ebft, trong tr\u01b0\u1eddng h\u1ee3p c\u1ee7a ch\u00fang t\u00f4i 4 m;<\/li>\n<li>C l\u00e0 chi\u1ec1u d\u00e0i c\u1ee7a con b\u00e8 m\u00e0 kh\u00f4ng c\u00f3 gi\u00e1c m\u1ea1c nh\u00f4 ra.<\/li>\n<\/ul>\n<p>G\u00f3c A l\u00e0 g\u00f3c d\u1ed1c c\u1ee7a \u0111\u1ed9 d\u1ed1c, trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 20 \u00b0.<\/p>\n<p>Chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng rafter (A) v\u00e0 chi\u1ec1u d\u00e0i c\u1ee7a ch\u00e2n rafter m\u00e0 kh\u00f4ng c\u00f3 k\u00edch th\u01b0\u1edbc c\u1ee7a ph\u1ea7n nh\u00f4 ra (C). V\u1edbi ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 g\u00f3c \u0111\u1ed9 nghi\u00eang, t\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u n\u00e0y l\u00e0 c\u00f3 th\u1ec3. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i nh\u1edb g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a \u0111\u1ed9 d\u1ed1c h\u01a1n l\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m c\u1ee7a ch\u00fang c\u00f3 \u0111\u1ed9 nghi\u00eang.<\/p>\n<p>C\u00f4ng th\u1ee9c (xem h\u00ecnh b\u00ean d\u01b0\u1edbi) x\u00e1c \u0111\u1ecbnh chi\u1ec1u d\u00e0i c\u1ee7a ch\u00e2n rafter.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_10.jpg\"><\/p>\n<p>Ch\u00fang ta c\u00f3 g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a a = 20 \u00b0 v\u00e0 b = 4 m. S\u1eed d\u1ee5ng m\u00e1y t\u00ednh c\u01a1 b\u1ea3n nh\u1ea5t, b\u00e2y gi\u1edd ch\u00fang t\u00f4i t\u00ecm th\u1ea5y = 0.939. Ch\u00fang t\u00f4i thay th\u1ebf c\u00e1c gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong c = 4: 0.939 = 4.25 m. \u0110\u00e2y l\u00e0 th\u1eddi gian c\u1ee7a b\u00e8 l\u00e0 bao l\u00e2u.<\/p>\n<p>B\u00e2y gi\u1edd c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter. T\u00ednh to\u00e1n n\u00f3 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng th\u1ee9c (xem h\u00ecnh b\u00ean d\u01b0\u1edbi).<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_11.jpg\"><\/p>\n<p>V\u00ec ch\u00fang t\u00f4i nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 c\u00e1c d\u1eef li\u1ec7u, kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec v\u1edbi hai c\u00f4ng th\u1ee9c \u0111\u1ea7u ti\u00ean. B\u1ea1n ph\u1ea3i x\u00e1c \u0111\u1ecbnh g\u00f3c \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c th\u1ee9 ba. N\u00f3 kh\u00e1 \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 ho\u00e0n th\u00e0nh. M\u1ed7i g\u00f3c b\u00ean trong c\u1ee7a tam gi\u00e1c \u0111\u1ec1u c\u00f3 th\u00eam t\u1edbi 180 \u0111\u1ed9. Ch\u00fang t\u00f4i bi\u1ebft r\u1eb1ng \u0111\u1ed9 d\u1ed1c c\u00f3 \u0111\u1ed9 nghi\u00eang 20 \u00b0 v\u00e0 g\u00f3c vu\u00f4ng 90 \u00b0. Hai g\u00f3c n\u00e0y th\u00eam t\u1edbi 90 + 20 = 110 \u00b0. Do \u0111\u00f3, 180-110 = 70 \u00b0 l\u00e0 g\u00f3c B.<\/p>\n<p>S\u1eed d\u1ee5ng m\u1ed7i trong ba c\u00f4ng th\u1ee9c, ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh to\u00e1n chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter:<\/p>\n<ul>\n<li>a = c \u00d7 sin a = 4.25 \u00d7 0.34 = 1.44 m.<\/li>\n<li>a = b \u00d7 tg a = 4 \u00d7 0.36 = 1.44 m.<\/li>\n<li>a = c \u00d7 cos b = 4.25 \u00d7 0.34 = 1.44 m.<\/li>\n<\/ul>\n<p>Nh\u01b0 b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y, c\u00e1c k\u1ebft qu\u1ea3 t\u01b0\u01a1ng t\u1ef1 \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p. Trong tr\u01b0\u1eddng h\u1ee3p c\u1ee7a ch\u00fang t\u00f4i, h\u1ec7 th\u1ed1ng Rafter l\u00e0 1.Cao 14 m\u00e9t. \u0110\u00e2y l\u00e0 c\u00e1ch ch\u00fang t\u00f4i ph\u00e1t hi\u1ec7n ra t\u1ea5t c\u1ea3 c\u00e1c k\u00edch th\u01b0\u1edbc m\u00e0 ch\u00fang t\u00f4i quan t\u00e2m b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng g\u00f3c \u0111\u1ed9 nghi\u00eang v\u00e0 c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c \u0111\u01a1n gi\u1ea3n. Sau \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm ra c\u00f3 bao nhi\u00eau ngu\u1ed3n cung c\u1ea5p v\u00e0 T. D. c\u00f3.<\/p>\n<blockquote><p>\n   Thi\u1ebft y\u1ebfu. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ghi nh\u1edb m\u1ed9t y\u1ebfu t\u1ed1 r\u1ea5t quan tr\u1ecdng. M\u1ecdi c\u00f4ng c\u1ee5 x\u00e2y d\u1ef1ng v\u00e0 ti\u1ec7n \u00edch ch\u1ec9 hi\u1ec3n th\u1ecb c\u00e1c g\u00f3c \u0111\u1ed9 nghi\u00eang v\u1ec1 \u0111\u1ed9 cao; Kh\u00f4ng c\u00f3 quy m\u00f4 d\u1ef1a tr\u00ean s\u1edf th\u00edch.\n  <\/p><\/blockquote>\n<p>S\u1eed d\u1ee5ng c\u00e1c b\u1ea3ng \u0111\u1eb7c bi\u1ec7t ho\u1eb7c m\u00e1y t\u00ednh tr\u1ef1c tuy\u1ebfn n\u1ebfu b\u1ea1n g\u1eb7p r\u1eafc r\u1ed1i v\u1edbi c\u00e1c t\u00ednh to\u00e1n. Thay th\u1ebf d\u1eef li\u1ec7u g\u1ed1c c\u1ee7a b\u1ea1n v\u00e0 t\u00ecm c\u00e1c k\u00edch th\u01b0\u1edbc b\u1ecb thi\u1ebfu ngay l\u1eadp t\u1ee9c. M\u1ecdi th\u1ee9 \u0111\u1ec1u \u0111\u00e1ng tin c\u1eady v\u00e0 d\u1ec5 hi\u1ec3u. B\u00e2y gi\u1edd b\u1ea1n n\u00ean t\u1eadp trung ch\u0103m ch\u00fa h\u01a1n v\u00e0o vi\u1ec7c t\u00ecm ra xu h\u01b0\u1edbng c\u1ee7a m\u00e1i nh\u00e0 theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m.<\/p>\n<h2>Ph\u1ea7n tr\u0103m sai l\u1ec7ch l\u00e0 g\u00ec<\/h2>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c g\u00f3c nghi\u00eang \u0111\u1ed9 d\u1ed1c \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, ch\u1ec9 nh\u1eefng c\u00e1 nh\u00e2n kh\u00f4ng t\u1ef1 x\u00e2y d\u1ef1ng b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec b\u1ea3n th\u00e2n s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef &quot;g\u00f3c ph\u1ea7n tr\u0103m.&quot;<\/p>\n<blockquote><p>\n   Thi\u1ebft y\u1ebfu. M\u1ed7i ch\u00e2n rafter \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u1ed9 v\u00e0 kh\u00f4ng c\u00f3 h\u1ee9ng th\u00fa n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong quy tr\u00ecnh l\u1eafp r\u00e1p h\u1ec7 th\u1ed1ng Rafter. H\u01a1n n\u1eefa, kh\u00f4ng c\u00f3 c\u00f4ng c\u1ee5 \u0111o n\u00e0o t\u1ed3n t\u1ea1i t\u00ednh to\u00e1n c\u00e1c g\u00f3c trong c\u00e1c \u0111i\u1ec1u kho\u1ea3n t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. Th\u00eam v\u1ec1 \u0111i\u1ec1u \u0111\u00f3 sau. C\u00f3 nh\u1eefng b\u1ea3ng chuy\u1ec3n quy\u1ec1n l\u1ee3i \u0111\u1ed9c \u0111\u00e1o v\u00e0o c\u00e1c g\u00f3c.\n  <\/p><\/blockquote>\n<p>H\u00e3y suy ngh\u0129 v\u1ec1 nh\u1eefng \u0111\u1ecbnh ngh\u0129a n\u00e0y trong cu\u1ed9c s\u1ed1ng th\u1ef1c. Gi\u1ea3 s\u1eed r\u1eb1ng \u0111\u1ed9 d\u1ed1c c\u00f3 \u0111\u1ed9 nghi\u00eang 30%. \u0110i\u1ec1u \u0111\u00f3 bi\u1ec3u th\u1ecb \u0111i\u1ec1u g\u00ec? \u0110i\u1ec1u n\u00e0y ch\u1ec9 ra r\u1eb1ng chi\u1ec1u cao c\u1ee7a v\u00e1n tr\u01b0\u1ee3t tr\u00ean m\u00e1i nh\u00e0 l\u00e0 30% c\u1ee7a t\u00f2a nh\u00e0 n\u1eeda chi\u1ec1u r\u1ed9ng. Ch\u00fang t\u00f4i s\u1ebd s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t tam gi\u00e1c cho c\u00e1c t\u00ednh to\u00e1n c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_9.jpg\"><\/p>\n<p>C\u00f4ng th\u1ee9c x\u00e1c \u0111\u1ecbnh t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m c\u1ee7a \u0111\u1ed9 nghi\u00eang (xem h\u00ecnh b\u00ean d\u01b0\u1edbi).<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_12.jpg\"><\/p>\n<ul>\n<li>A &#8211; Chi\u1ec1u cao c\u1ee7a tr\u01b0\u1ee3t b\u0103ng;<\/li>\n<li>B &#8211; m\u1ed9t n\u1eeda chi\u1ec1u r\u1ed9ng c\u1ee7a c\u1ea5u tr\u00fac.<\/li>\n<\/ul>\n<p>30% l\u00e0 g\u00ec v\u00e0 m\u00e1i nh\u00e0 tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o v\u1edbi th\u00e1i \u0111\u1ed9 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m nh\u01b0 v\u1eady l\u00e0 r\u1ea5t kh\u00f3 t\u01b0\u1edfng t\u01b0\u1ee3ng. \u0110\u1ec3 chuy\u1ec3n \u0111\u1ed5i gi\u00e1 tr\u1ecb n\u00e0y th\u00e0nh \u0111\u1ed9, h\u00e3y s\u1eed d\u1ee5ng b\u1ea3ng \u0111\u1eb7c bi\u1ec7t. V\u1edbi s\u1ef1 gi\u00fap \u0111\u1ee1 c\u1ee7a n\u00f3, ch\u00fang t\u00f4i bi\u1ebft r\u1eb1ng 30% c\u00f3 ngh\u0129a l\u00e0 g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0 l\u00e0 kho\u1ea3ng 16.5 \u00b0. Th\u1ef1c t\u1ebf l\u00e0 \u0111\u1ed1i v\u1edbi 16 \u00b0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m l\u00e0 28.7%v\u00e0 trong 17 \u00b0 tham s\u1ed1 n\u00e0y l\u00e0 30.5%. N\u1ebfu ch\u1ee7 nh\u00e2n bi\u1ebft r\u1eb1ng \u0111\u1ed9 d\u1ed1c c\u1ee7a \u0111\u1ed9 d\u1ed1c c\u1ee7a \u0111\u1ed9 d\u1ed1c l\u00e0 kho\u1ea3ng 16.5 \u00b0, sau \u0111\u00f3 n\u00f3 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u01b0\u1edfng t\u01b0\u1ee3ng s\u1ef1 xu\u1ea5t hi\u1ec7n v\u00e0 h\u00ecnh h\u1ecdc c\u1ee7a m\u00e1i nh\u00e0, t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc tuy\u1ebfn t\u00ednh c\u1ee7a ch\u00e2n rafter, h\u1ed7 tr\u1ee3 th\u1eb3ng \u0111\u1ee9ng c\u1ee7a m\u00e1i nh\u00e0, k\u00edch th\u01b0\u1edbc c\u1ee7a Mauerlat. L\u00e0m th\u1ebf n\u00e0o c\u00e1c t\u00ednh to\u00e1n nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n n\u1ebfu c\u00f3 m\u1ed9t t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m d\u1eef li\u1ec7u \u0111\u1ed9 nghi\u00eang?<\/p>\n<h3>V\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng g\u00f3c nghi\u00eang theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m<\/h3>\n<p>M\u00e1y t\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c tham s\u1ed1 c\u1ee7a h\u1ec7 th\u1ed1ng Rafter b\u1eb1ng c\u00e1ch chia chi\u1ec1u r\u1ed9ng c\u1ee7a c\u1ea5u tr\u00fac l\u00e0m \u0111\u00f4i v\u00e0 chi\u1ec1u cao c\u1ee7a s\u01b0\u1eddn n\u00fai th\u00e0nh ph\u1ea7n tr\u0103m.<\/p>\n<p>Khi c\u00f4ng th\u1ee9c ban \u0111\u1ea7u \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn, c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh s\u1ed1 h\u1ecdc c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c t\u00ednh to\u00e1n. Tr\u01b0\u1edbc ti\u00ean b\u1ea1n ph\u1ea3i chuy\u1ec3n \u0111\u1ed5i c\u00f4ng th\u1ee9c m\u1ed9t ch\u00fat.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_13.jpg\"><\/p>\n<p>\u1ede \u0111\u00e2y, x \u0111\u1ea1i di\u1ec7n cho \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i trong c\u00e1c \u0111i\u1ec1u kho\u1ea3n t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m; V\u00ed d\u1ee5: ch\u00fang t\u00f4i \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh m\u1ea5t 30%. Con s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc v\u00e0 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn trong qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n.<\/p>\n<p>B\u1ea1n n\u00ean chuy\u1ec3n \u0111\u1ed5i c\u00f4ng th\u1ee9c m\u1ed9t ch\u00fat th\u00e0nh lo\u1ea1i n\u00e0y \u0111\u1ec3 t\u00ednh to\u00e1n ban \u0111\u1ea7u (xem h\u00ecnh b\u00ean d\u01b0\u1edbi).<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_14.jpg\"><\/p>\n<p>B\u00e2y gi\u1edd ch\u00fang ta th\u1ea5y r\u1eb1ng A v\u00e0 B c\u00f3 c\u00f9ng gi\u00e1 tr\u1ecb.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_15.jpg\"><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_16.jpg\"><\/p>\n<ul>\n<li>A &#8211; Chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter,<\/li>\n<li>B &#8211; m\u1ed9t n\u1eeda chi\u1ec1u r\u1ed9ng c\u1ee7a t\u00f2a nh\u00e0 v\u00e0<\/li>\n<li>X &#8211; t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m c\u1ee7a \u0111\u1ed9 d\u1ed1c.<\/li>\n<\/ul>\n<p>Ch\u00fang t\u00f4i nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m, nh\u01b0ng \u0111\u1ec3 ti\u1ebfn h\u00e0nh c\u00e1c t\u00ednh to\u00e1n, b\u1ea1n s\u1ebd c\u1ea7n ph\u1ea3i \u0111o chi\u1ec1u r\u1ed9ng c\u1ee7a t\u00f2a nh\u00e0 ho\u1eb7c chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter. Ch\u00fang t\u00f4i s\u1ebd \u0111o l\u01b0\u1eddng n\u00f3 v\u00ec n\u00f3 \u0111\u01a1n gi\u1ea3n h\u01a1n nhi\u1ec1u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb th\u1ee9 hai.<\/p>\n<p>V\u00ed d\u1ee5: chi\u1ec1u r\u1ed9ng c\u1ee7a t\u00f2a nh\u00e0 l\u00e0 8 m\u00e9t, v\u00ec v\u1eady m\u1ed9t n\u1eeda trong s\u1ed1 \u0111\u00f3 b\u1eb1ng 4 m\u00e9t (b = 4 m).<\/p>\n<p>Ch\u00fang t\u00f4i kh\u00e1m ph\u00e1 chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter (xem h\u00ecnh b\u00ean d\u01b0\u1edbi).<\/p>\n<p>Ch\u00fang t\u00f4i kh\u00e1m ph\u00e1 chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter.<\/p>\n<p>H\u1ec7 th\u1ed1ng Rafter l\u00e0 1.Cao 2 m\u00e9t, v\u00e0 b\u00e0n cho ch\u00fang ta bi\u1ebft r\u1eb1ng g\u00f3c nghi\u00eang c\u1ee7a n\u00f3 l\u00e0 kho\u1ea3ng 16.5 \u0111\u1ed9.<\/p>\n<p>Chi\u1ec1u d\u00e0i c\u1ee7a ch\u00e2n rafter m\u00e0 kh\u00f4ng c\u1ea7n x\u00e1c \u0111\u1ecbnh ph\u1ea7n nh\u00f4 ra gi\u00e1c m\u1ea1c. B\u1ea1n c\u00f3 hai t\u00f9y ch\u1ecdn.<\/p>\n<p>\u0110\u1ecbnh l\u00fd Pythagore \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ea7u ti\u00ean, v\u1edbi C \u0111\u1ea1i di\u1ec7n cho chi\u1ec1u d\u00e0i c\u1ee7a b\u00e8.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_17.jpg\"><\/p>\n<p>K\u1ebft qu\u1ea3 l\u00e0, c\u00f4ng th\u1ee9c trong h\u00ecnh minh h\u1ecda sau \u0111\u00e2y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bi\u1ec3u di\u1ec5n gi\u00e1 tr\u1ecb c\u1ee7a c.<\/p>\n<p>Ph\u01b0\u01a1ng tr\u00ecnh cho chi\u1ec1u d\u00e0i c\u1ee7a hypotenuse<\/p>\n<p>M\u1ed9t minh h\u1ecda v\u1ec1 t\u00ednh to\u00e1n (xem h\u00ecnh \u1ea3nh b\u00ean d\u01b0\u1edbi).<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_18.jpg\"><\/p>\n<p>2. S\u1eed d\u1ee5ng c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c. Nh\u01b0 ch\u00fang ta \u0111\u00e3 \u0111\u1ec1 c\u1eadp, c\u00f4ng th\u1ee9c sau \u0111\u00e2y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u00e0i c\u1ee7a b\u00e8.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_19.jpg\"><\/p>\n<p>Vi\u1ec7c x\u00e1c \u0111\u1ecbnh chi\u1ec1u d\u00e0i c\u1ee7a b\u00e8<\/p>\n<p>Ch\u00fang t\u00f4i s\u1edf h\u1eefu d\u1eef li\u1ec7u \u0111\u1ea7y \u0111\u1ee7: M\u1ed9t n\u1eeda chi\u1ec1u r\u1ed9ng c\u1ee7a t\u00f2a nh\u00e0 l\u00e0 4 m\u00e9t v\u00e0 g\u00f3c nghi\u00eang c\u1ee7a n\u00f3 l\u00e0 16.5 \u0111\u1ed9.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_20.jpg\"><\/p>\n<p>M\u1ed9t minh h\u1ecda v\u1ec1 t\u00ednh to\u00e1n<\/p>\n<p>Chi\u1ec1u d\u00e0i c\u1ee7a b\u00e8 kh\u00e1c m\u1ed9t ch\u00fat kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y l\u00e0 do g\u00f3c nghi\u00eang \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn v\u1edbi x\u1ea5p x\u1ec9.<\/p>\n<h2>\u0110\u1ecbnh ngh\u0129a n\u00e0o l\u00e0 t\u1ed1t h\u01a1n \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi<\/h2>\n<p>Ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 l\u1eadp lu\u1eadn r\u1eb1ng c\u00e2u h\u1ecfi l\u00e0 h\u00f9ng bi\u1ec7n. M\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u bi\u1ebft t\u1eeb tr\u01b0\u1eddng h\u1ecdc r\u1eb1ng m\u1ed9t g\u00f3c c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng gi\u00e1 tr\u1ecb th\u1ef1c c\u1ee7a n\u00f3 v\u00e0 n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u1ed9. G\u00f3c \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh gi\u1eefa \u0111\u01b0\u1eddng ngang v\u00e0 m\u00e1i d\u1ed1c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 g\u00f3c nghi\u00eang c\u1ee7a m\u00e1i nh\u00e0. M\u1eb7c d\u00f9 n\u00f3 c\u00f3 c\u00e1c ch\u1ec9 \u0111\u1ecbnh ch\u1eef c\u00e1i kh\u00e1c nhau trong b\u1ea3n v\u1ebd, nh\u01b0ng n\u00f3 kh\u00f4ng th\u1ef1c s\u1ef1 quan tr\u1ecdng. \u0110\u1ed9 d\u1ed1c kh\u00f4ng th\u1ec3 d\u1ed1c h\u01a1n 90 \u00b0; H\u1ecd th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 10 \u00b0 \u0111\u1ebfn 40 \u00b0. Do c\u00e1c h\u00e0ng th\u1ea5p h\u01a1n t\u01b0\u01a1ng \u0111\u1ed1i d\u1ed1c.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_1.jpg\"><\/p>\n<p>M\u00e1i nh\u00e0 b\u1ecb h\u1ecfng c\u1ee7a m\u00e1i nh\u00e0.<\/p>\n<p>T\u1ea1i sao c\u00e1c ph\u00e2n s\u1ed1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng n\u1ebfu t\u1ea5t c\u1ea3 c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y \u0111\u01b0\u1ee3c hi\u1ec3u v\u00e0 m\u1ecdi th\u1ee9 \u0111\u1ec1u r\u00f5 r\u00e0ng? Th\u00e0nh th\u1eadt m\u00e0 n\u00f3i, kh\u00f4ng ai c\u00f3 th\u1ec3 tr\u1ea3 l\u1eddi theo c\u00e1ch v\u1eeba d\u1ec5 hi\u1ec3u v\u1eeba ho\u00e0n to\u00e0n r\u00f5 r\u00e0ng. H\u01a1n n\u1eefa, trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, b\u1ea1n kh\u00f4ng th\u1ec3 x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng rafter m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ed9.<\/p>\n<p>Th\u1ec9nh tho\u1ea3ng, h\u1ecd c\u1ed1 g\u1eafng minh h\u1ecda m\u1ed9t \u0111\u1ed9 d\u1ed1c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t ph\u00e1t b\u1eafn, cho th\u1ea5y chi\u1ec1u d\u00e0i c\u1ee7a h\u00ecnh chi\u1ebfu c\u1ee7a Rafter l\u00ean b\u1ec1 m\u1eb7t ngang \u1edf ph\u1ea7n d\u01b0\u1edbi c\u1ee7a ph\u00e2n s\u1ed1 v\u00e0 chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng Rafter \u1edf ph\u1ea7n tr\u00ean. D\u1ec5 d\u00e0ng h\u01a1n \u0111\u1ec3 g\u1ecdi ph\u00e9p chi\u1ebfu n\u00e0y l\u00e0 m\u1ed9t n\u1eeda chi\u1ec1u r\u1ed9ng c\u1ee7a ng\u00f4i nh\u00e0. Ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u00e1c ch\u1ec9 \u0111\u1ecbnh c\u1ee7a \u0111\u1ed9 nghi\u00eang 1: 4 ho\u1eb7c 2.5: 6 trong m\u1ed9t s\u1ed1 b\u00e0i vi\u1ebft nh\u1ea5t \u0111\u1ecbnh. C\u00e1c \u0111\u1ecbnh ngh\u0129a \u0111\u01b0\u1ee3c \u0111\u01b0a ra theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m khi c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y \u0111\u01b0\u1ee3c chia v\u00e0 nh\u00e2n v\u1edbi 100.<\/p>\n<p>C\u00e1c b\u1ea3ng \u0111\u01b0\u1ee3c t\u1ea1o d\u1ef1a tr\u00ean s\u1ed1 \u0111\u1ed9 m\u00e0 m\u1ed9t ph\u1ea7n tr\u0103m chi\u1ec1u cao c\u1ee7a m\u00e1i \u0111\u1ebfn m\u1ed9t n\u1eeda chi\u1ec1u r\u1ed9ng c\u1ee7a n\u00f3 s\u1edf h\u1eefu. M\u1ed9t m\u1ee9c \u0111\u1ed9 l\u00e0 kho\u1ea3ng 1.9% \u0111\u1ebfn 1.s\u1ed1 8. B\u00e2y gi\u1edd b\u1ea1n c\u00f3 th\u1ec3 t\u00ednh to\u00e1n g\u00f3c \u0111\u1ed9 nghi\u00eang theo \u0111\u1ed9 b\u1eb1ng c\u00e1ch chia l\u00e3i cho gi\u00e1 tr\u1ecb n\u00e0y. V\u00ed d\u1ee5, m\u00e1i nh\u00e0 nghi\u00eang ba m\u01b0\u01a1i ph\u1ea7n tr\u0103m. Gi\u00e1 tr\u1ecb n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c chia cho 1.9 \u0110\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111\u1ed9.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_2.jpg\"><\/p>\n<p>\u0110\u1ed9 d\u1ed1c bi\u1ec3u th\u1ecb theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m v\u00e0 \u0111\u1ed9<\/p>\n<p>Tuy nhi\u00ean, b\u1ea1n ch\u1ec9 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea3n d\u1ecbch cho r\u00f5 r\u00e0ng v\u00ec c\u00e1c gi\u00e1 tr\u1ecb kh\u00f4ng ch\u1ea3y v\u00e0 s\u1ef1 ph\u1ee5 thu\u1ed9c l\u00e0 gi\u00e1n ti\u1ebfp. B\u1ecb c\u1ea5m s\u1eed d\u1ee5ng \u0111\u1ed9 d\u1ed1c c\u1ee7a \u0111\u1ed9 d\u1ed1c theo \u0111\u1ed9 \u0111\u1ec3 t\u00ednh to\u00e1n th\u00eam v\u00e0 s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u l\u1ed7i s\u1ebd ng\u0103n ch\u1eb7n c\u00e1c t\u00ednh to\u00e1n ti\u1ebfp theo. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 r\u00f5 r\u00e0ng, m\u1ed9t s\u01a1 \u0111\u1ed3 duy nh\u1ea5t cho m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng g\u00f3c nghi\u00eang c\u1ee7a m\u00e1i nh\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf.<\/p>\n<p>N\u1ebfu m\u1ed9t b\u1ea3ng c\u1ee5 th\u1ec3 kh\u00f4ng ch\u1ee9a d\u1eef li\u1ec7u ch\u00ednh x\u00e1c, h\u00e3y s\u1eed d\u1ee5ng m\u00e1y t\u00ednh tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0.<\/p>\n<h2>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 g\u00f3c nghi\u00eang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc c\u1ee7a g\u00e1c m\u00e1i<\/h2>\n<p>Khu v\u1ef1c sinh ho\u1ea1t c\u1ee7a m\u1ed9t g\u00e1c m\u00e1i l\u1edbn h\u01a1n chuy\u1ec3n th\u00e0nh m\u1ed9t kh\u00f4ng gian s\u1ed1ng tho\u1ea3i m\u00e1i h\u01a1n v\u00e0 n\u00e2ng cao t\u00ecnh tr\u1ea1ng c\u1ee7a t\u00f2a nh\u00e0. C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n tr\u01b0\u1edbc ti\u00ean n\u00ean \u0111i\u1ec1u h\u01b0\u1edbng; D\u1ef1a tr\u00ean c\u00e1c t\u00ednh n\u0103ng ch\u1ee9c n\u0103ng n\u00e0y t\u1eeb h\u00ecnh d\u1ea1ng c\u1ee7a m\u00e1i nh\u00e0, ki\u1ebfn \u200b\u200bth\u1ee9c s\u1ebd cho ph\u00e9p b\u1ea1n ch\u1ecdn gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u cho h\u1ec7 th\u1ed1ng Rafter. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i kh\u00f4ng t\u1ed1n k\u00e9m v\u00e0 thu\u1eadn ti\u1ec7n \u0111\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u l\u1ee3p.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_21.jpg\"><\/p>\n<p>M\u1ed1i quan h\u1ec7 gi\u1eefa khu v\u1ef1c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ee7a g\u00e1c m\u00e1i v\u00e0 g\u00f3c nghi\u00eang c\u1ee7a m\u00e1i nh\u00e0<\/p>\n<p>S\u01a1 \u0111\u1ed3 cho th\u1ea5y r\u00f5 khu v\u1ef1c c\u1ee7a c\u0103n ph\u00f2ng thay \u0111\u1ed5i khi c\u00e1c g\u00f3c c\u1ee7a s\u01b0\u1eddn thay \u0111\u1ed5i. Khi x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a g\u00e1c m\u00e1i, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i nh\u1edb r\u1eb1ng c\u00e1c ph\u00f2ng ng\u1eafn h\u01a1n hai m\u00e9t l\u00e0 kh\u00f4ng ph\u00f9 h\u1ee3p v\u00ec h\u1ecd khi\u1ebfn ng\u01b0\u1eddi c\u01b0 ng\u1ee5 c\u1ea3m th\u1ea5y ch\u00e1n n\u1ea3n.<\/p>\n<p>Tuy nhi\u00ean, khi g\u00f3c nghi\u00eang t\u0103ng l\u00ean, m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh x\u1ea3y ra.<\/p>\n<ol>\n   <strong>S\u1ed1 l\u01b0\u1ee3ng v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng s\u1ebd t\u0103ng.<\/strong> G\u00f3c nghi\u00eang c\u00e0ng l\u1edbn th\u00ec chi\u1ec1u d\u00e0i c\u1ee7a ch\u00e2n rafter c\u00e0ng l\u1edbn. Xem x\u00e9t m\u1ed9t v\u00ed d\u1ee5. G\u00f3c d\u1ed1c 45 \u00b0, chi\u1ec1u r\u1ed9ng nh\u00e0 8 m.\n  <\/ol>\n<p>  <img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_22.jpg\"><\/p>\n<p>V\u1edbi nh\u1eefng s\u1ef1 th\u1eadt n\u00e0y, chi\u1ec1u d\u00e0i c\u1ee7a m\u1ed9t con b\u00e8 duy nh\u1ea5t<\/p>\n<h2>B\u01af\u1edaC -BY -X\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng d\u1eabn v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a h\u1ec7 th\u1ed1ng Rafter<\/h2>\n<p>N\u1ebfu b\u1ea1n bi\u1ebft chi\u1ec1u r\u1ed9ng c\u1ee7a t\u00f2a nh\u00e0 v\u00e0 g\u00f3c \u0111\u1ed9 d\u1ed1c, b\u1ea1n ph\u1ea3i x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng Rafter. M\u00e1i nh\u00e0 l\u00e0 m\u1ed9t m\u00e1i \u0111\u1ea7u h\u1ed3i \u0111i\u1ec3n h\u00ecnh. Ng\u00f4i nh\u00e0 B c\u00f3 chi\u1ec1u r\u1ed9ng 8 m\u00e9t v\u00e0 g\u00f3c d\u1ed1c 35 \u0111\u1ed9.<\/p>\n<p>B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a h\u1ec7 th\u1ed1ng l\u1ee3p c\u1ee7a h\u1ec7 th\u1ed1ng l\u1ee3p. H\u1ecd c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng th\u1eb3ng \u0111\u1ee9ng tr\u00ean ch\u00ednh h\u1ecd v\u00ec ch\u00fang \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t b\u00ean d\u01b0\u1edbi ch\u1ea1y tr\u01b0\u1ee3t b\u0103ng. S\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a m\u00e1i nh\u00e0.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_23.jpg\"><\/p>\n<p>M\u1ed9t c\u00f4ng th\u1ee9c \u0111\u1ec3 t\u00ecm ra chi\u1ec1u cao c\u1ee7a m\u00e1i nh\u00e0<\/p>\n<p>B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh ch\u00e2n rafter c\u1ee7a Dina trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng c\u00f3 ph\u1ea7n nh\u00f4 ra.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_24.jpg\"><\/p>\n<p>Chi\u1ec1u d\u00e0i c\u1ee7a ch\u00e2n rafter khi ph\u1ea7n nh\u00f4 ra kh\u00f4ng c\u00f3<\/p>\n<p>B\u01b0\u1edbc 3: X\u00e1c minh c\u00e1c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c. N\u00ean \u00e1p d\u1ee5ng \u0110\u1ecbnh l\u00fd Pythagore \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_3.jpg\"><\/p>\n<p>Ch\u00fang t\u00f4i nh\u1eadp d\u1eef li\u1ec7u c\u1ee7a ch\u00fang t\u00f4i v\u00e0o c\u00f4ng th\u1ee9c thay th\u1ebf.<\/p>\n<p>\u0110\u1ecbnh l\u00fd c\u1ee7a Pythagoras<\/p>\n<p>Tr\u00ean th\u1ef1c t\u1ebf, c\u00f3 m\u1ed9t bi\u1ebfn th\u1ec3 nh\u1ecf c\u1ee7a m\u1ed9t v\u00e0i cm, nh\u01b0ng \u0111i\u1ec1u n\u00e0y l\u00e0 do c\u00e1c con s\u1ed1 \u0111\u01b0\u1ee3c l\u00e0m tr\u00f2n. L\u1ed7i s\u1ebd kh\u00f4ng l\u1edbn h\u01a1n v\u00e0i milimet n\u1ebfu b\u1ea1n \u0111\u1ec3 l\u1ea1i \u00edt nh\u1ea5t h\u00e0ng ng\u00e0n gi\u00e1 tr\u1ecb; \u0110i\u1ec1u n\u00e0y \u0111\u1ee7 cho c\u00f4ng vi\u1ec7c x\u00e2y d\u1ef1ng ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>\n<blockquote><p>\n   &quot;Ch\u1ee7 nh\u00e0 v\u00e0 nh\u00e0 x\u00e2y d\u1ef1ng c\u00f3 th\u1ec3 h\u1ecdc th\u00f4ng tin quan tr\u1ecdng v\u1ec1 hi\u1ec7u qu\u1ea3 tho\u00e1t n\u01b0\u1edbc c\u1ee7a m\u00e1i nh\u00e0 v\u00e0 \u0111\u1ed9 b\u1ec1n chung b\u1eb1ng c\u00e1ch hi\u1ec3u \u0111\u1ed9 d\u1ed1c c\u1ee7a n\u00f3, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng c\u1ea3 hai b\u1eb1ng c\u1ea5p v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i, th\u1ea3o lu\u1eadn v\u1ec1 gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 trong vi\u1ec7c ng\u0103n ng\u1eeba thi\u1ec7t h\u1ea1i n\u01b0\u1edbc v\u00e0 \u0111\u01b0a ra l\u1eddi khuy\u00ean h\u1eefu \u00edch v\u1ec1 c\u00e1ch ch\u1ecdn \u0111\u1ed9 d\u1ed1c ph\u00f9 h\u1ee3p cho c\u00e1c lo\u1ea1i l\u1ee3p v\u00e0 kh\u00ed h\u1eadu kh\u00e1c nhau. Hi\u1ec3u \u0111\u01b0\u1ee3c y\u1ebfu t\u1ed1 n\u1ec1n t\u1ea3ng n\u00e0y c\u1ee7a thi\u1ebft k\u1ebf m\u00e1i nh\u00e0 s\u1ebd cho ph\u00e9p \u0111\u1ed9c gi\u1ea3 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t s\u1ebd c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a ng\u00f4i nh\u00e0 c\u1ee7a h\u1ecd.&quot;\n  <\/p><\/blockquote>\n<h2>SLOP l\u00e0 g\u00ec<\/h2>\n<p>C\u00e1c bi\u1ec7n ph\u00e1p nh\u01b0 v\u1eady ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean m\u00e1i nh\u00e0 v\u1edbi g\u00f3c nghi\u00eang \u226410 \u00b0. Th\u1ef1c t\u1ebf l\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ed9 d\u1ed1c ho\u00e0n to\u00e0n b\u1eb1ng ph\u1eb3ng (ngang). N\u00f3 kh\u00e1 kh\u00f3 \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c m\u00e1i nh\u00e0 l\u1edbn trong c\u00e1c m\u00e1i nh\u00e0 k\u00edch th\u01b0\u1edbc, do l\u1ed7i, c\u00e1c g\u00f3c c\u1ee7a \u0111\u1ed9 nghi\u00eang m\u00e1i c\u00f3 th\u1ec3 thay \u0111\u1ed5i m\u1ed9t ch\u00fat. \u0110\u1ed1i v\u1edbi c\u00e1c m\u00e1i nh\u00e0 \u0111\u01b0\u1ee3c n\u00e9m, \u0111i\u1ec1u n\u00e0y kh\u00f4ng quan tr\u1ecdng, nh\u01b0ng \u0111\u1ed1i v\u1edbi c\u00e1c l\u1ed7i b\u1eb1ng ph\u1eb3ng nh\u01b0 v\u1eady c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 \u0111\u00ecnh tr\u1ec7 c\u1ee7a n\u01b0\u1edbc v\u00e0 do \u0111\u00f3, s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a r\u00f2 r\u1ec9, \u0111\u1ed9 k\u00edn c\u1ee7a m\u00e1i nh\u00e0 b\u1ecb suy y\u1ebfu, th\u1ea5t b\u1ea1i s\u1edbm c\u1ee7a c\u00e1c n\u00fat h\u1ed7 tr\u1ee3, v.v. D. Vi\u1ec7c c\u1eaft c\u00e1c m\u00e1i nh\u00e0 nh\u01b0 v\u1eady c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p, c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang c\u1ee7a c\u1ea5u tr\u00fac v\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a n\u00f3.<\/p>\n<ol>\n   S\u1eed d\u1ee5ng v\u1eadt li\u1ec7u s\u1ed1 l\u01b0\u1ee3ng l\u1edbn. Th\u00f4ng th\u01b0\u1eddng, \u0111\u1ea5t s\u00e9t m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u1edbi m\u1ed9t l\u1edbp d\u00e0y t\u1edbi m\u01b0\u1eddi cm, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c quy t\u1eafc d\u01b0\u1edbi m\u1ee9c, v\u00e0 sau \u0111\u00f3 m\u1ed9t h\u1ed7n h\u1ee3p c\u00e1t xi m\u0103ng \u0111\u01b0\u1ee3c \u0111\u1ed5 l\u00ean tr\u00ean.\n  <\/ol>\n<p>  <img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_4.jpg\"><\/p>\n<p>B\u00ea t\u00f4ng \u0111\u1ea5t s\u00e9t m\u1edf r\u1ed9ng \u0111\u00e3 tr\u1edf l\u1ea1i.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/uklon-krovli-v-gradusah-i-procentah_5.jpg\"><\/p>\n<p>S\u1eed d\u1ee5ng &quot;Technonikol&quot; c\u00e1ch \u0111i\u1ec7n trong ph\u00e1t hi\u1ec7n.<\/p>\n<h3>Gi\u00e1 b\u1ecdt polystyrene \u0111\u00f9n<\/h3>\n<p><s>B\u1ecdt polystyrene \u0111\u00f9n<\/s><\/p>\n<p>T\u1ea5t nhi\u00ean r\u1ed3i! \u0110\u1ed1i v\u1edbi b\u00e0i vi\u1ebft c\u1ee7a b\u1ea1n v\u1ec1 &quot;\u0110\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i b\u1eb1ng \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m&quot; \u0110\u00e2y l\u00e0 m\u1ed9t k\u1ebft lu\u1eadn ng\u1eafn g\u1ecdn:<\/p>\n<p>Bi\u1ebft \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0 c\u1ee7a b\u1ea1n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec tu\u1ed5i th\u1ecd v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3. Ch\u1ee7 nh\u00e0 v\u00e0 nh\u00e0 x\u00e2y d\u1ef1ng c\u00f3 th\u1ec3 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 v\u1eadt li\u1ec7u l\u1ee3p, h\u1ec7 th\u1ed1ng tho\u00e1t n\u01b0\u1edbc v\u00e0 thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac t\u1ed5ng th\u1ec3 b\u1eb1ng c\u00e1ch bi\u1ebft g\u00f3c \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng \u0111\u1ed9 ho\u1eb7c t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m c\u1ee7a \u0111\u1ed9 d\u1ed1c.<\/p>\n<p>C\u00e1ch m\u00e0 n\u01b0\u1edbc, tuy\u1ebft v\u00e0 m\u1ea3nh v\u1ee5n ch\u1ea3y ra kh\u1ecfi m\u00e1i nh\u00e0 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi g\u00f3c d\u1ed1c, gi\u00fap tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 r\u00f2 r\u1ec9 v\u00e0 thi\u1ec7t h\u1ea1i c\u1ea5u tr\u00fac. Ngo\u00e0i ra, n\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a t\u00f2a nh\u00e0 v\u00e0 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nh\u1eefng khu v\u1ef1c tr\u1ea3i qua r\u1ea5t nhi\u1ec1u m\u01b0a ho\u1eb7c tuy\u1ebft.<\/p>\n<p>X\u00e1c \u0111\u1ecbnh v\u00e0 hi\u1ec3u \u0111\u1ed9 d\u1ed1c m\u00e1i l\u00e0 h\u1eefu \u00edch trong vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u00e0 \u0111\u1ea3m b\u1ea3o c\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t ch\u00ednh x\u00e1c, cho d\u00f9 b\u1ea1n \u0111ang l\u00ean k\u1ebf ho\u1ea1ch l\u1eafp \u0111\u1eb7t m\u00e1i m\u1edbi ho\u1eb7c \u0111\u00e1nh gi\u00e1 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u0169. N\u00f3 l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a thi\u1ebft k\u1ebf m\u00e1i nh\u00e0 gi\u00fap t\u0103ng c\u01b0\u1eddng ch\u1ee9c n\u0103ng v\u00e0 s\u1ef1 m\u1ea1nh m\u1ebd c\u1ee7a t\u00f2a nh\u00e0.<\/p>\n<p>Ch\u1ee7 nh\u00e0 v\u00e0 chuy\u00ean gia c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n giao ti\u1ebfp c\u1ee7a h\u1ecd v\u1edbi c\u00e1c nh\u00e0 th\u1ea7u v\u00e0 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 b\u1ea3o tr\u00ec m\u00e1i, s\u1eeda ch\u1eefa v\u00e0 thay th\u1ebf, cu\u1ed1i c\u00f9ng l\u00e0m t\u0103ng s\u1ef1 an to\u00e0n, hi\u1ec7u qu\u1ea3 v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a t\u00e0i s\u1ea3n c\u1ee7a h\u1ecd, b\u1eb1ng c\u00e1ch h\u1ecdc c\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n c\u1ee7a \u0111o \u0111\u1ed9 d\u1ed1c m\u00e1i, cho d\u00f9 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng \u0111\u1ed9 ho\u1eb7c theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m.<\/p>\n<p>K\u1ebft lu\u1eadn n\u00e0y t\u00f3m t\u1eaft t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c hi\u1ec3u \u0111\u1ed9 d\u1ed1c m\u00e1i trong khi v\u1eabn duy tr\u00ec s\u1ef1 r\u00f5 r\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn cho \u0111\u1ed9c gi\u1ea3 c\u1ee7a b\u1ea1n tr\u00ean &quot;T\u1ea5t c\u1ea3 v\u1ec1 m\u00e1i nh\u00e0&quot;. <\/p>\n<h2>Video v\u1ec1 ch\u1ee7 \u0111\u1ec1<\/h2>\n<h3>M\u00f4 h\u00ecnh c\u1ee7a c\u00e1c s\u01b0\u1eddn d\u1ed1c<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/HrjIcWTWp58\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>M\u00e1i nh\u00e0 b\u1eb1ng v\u1edbi m\u1ed9t cu\u1ed9c bi\u1ec3u t\u00ecnh.1 (t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c)<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wOUqJ4Hmmck\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>\u0110\u1ed9 d\u1ed1c theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/BP7mT2c42Vw\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i hi\u1ec3u \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 cho tu\u1ed5i th\u1ecd, ch\u1ee9c n\u0103ng v\u00e0 thi\u1ebft k\u1ebf c\u1ee7a n\u00f3. Tuy\u1ebft v\u00e0 n\u01b0\u1edbc m\u01b0a tho\u00e1t ra kh\u1ecfi b\u1ec1 m\u1eb7t c\u1ee7a m\u00e1i nh\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi \u0111\u1ed9 d\u1ed1c c\u1ee7a n\u00f3, th\u01b0\u1eddng \u0111\u01b0\u1ee3c n\u00eau \u1edf c\u1ea3 hai \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. \u0110\u00f3 [&hellip;]<\/p>\n","protected":false},"author":51,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-3209","post","type-post","status-publish","format-standard","","category-roof-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0110\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i b\u1eb1ng \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m: t\u00ednh to\u00e1n, c\u00f4ng th\u1ee9c<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch t\u00ednh to\u00e1n v\u00e0 hi\u1ec3u \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0 c\u1ee7a b\u1ea1n theo c\u1ea3 hai \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m. 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