{"id":3943,"date":"2026-04-12T04:35:23","date_gmt":"2026-04-12T04:35:23","guid":{"rendered":"https:\/\/azan.com.vn\/blog\/ly-do-vi-sao-nhieu-nha-xay-cong-lai-thuong-co-chi-tiet-la-nay-quan-trong-hon-nhieu-nguoi-nghi.html"},"modified":"2026-04-17T05:08:02","modified_gmt":"2026-04-17T05:08:02","slug":"ly-do-vi-sao-nhieu-nha-xay-cong-lai-thuong-co-chi-tiet-la-nay-quan-trong-hon-nhieu-nguoi-nghi","status":"publish","type":"post","link":"https:\/\/azan.com.vn\/blog\/ly-do-vi-sao-nhieu-nha-xay-cong-lai-thuong-co-chi-tiet-la-nay-quan-trong-hon-nhieu-nguoi-nghi.html","title":{"rendered":"L\u00fd do v\u00ec sao nhi\u1ec1u nh\u00e0 x\u00e2y c\u1ed5ng l\u1ea1i th\u01b0\u1eddng c\u00f3 chi ti\u1ebft l\u1ea1 n\u00e0y: Quan tr\u1ecdng h\u01a1n nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129"},"content":{"rendered":"

C\u00f3 nh\u1eefng chi ti\u1ebft quen thu\u1ed9c \u0111\u1ebfn m\u1ee9c ta nh\u00ecn th\u1ea5y m\u1ed7i ng\u00e0y m\u00e0 kh\u00f4ng h\u1ec1 th\u1eafc m\u1eafc. Nh\u1eefng \u0111\u01b0\u1eddng k\u1ebb ngang hay ch\u00e9o tr\u00ean \u0111o\u1ea1n d\u1ed1c tr\u01b0\u1edbc c\u1ed5ng nh\u00e0 l\u00e0 m\u1ed9t v\u00ed d\u1ee5 nh\u01b0 v\u1eady. Nhi\u1ec1u ng\u01b0\u1eddi coi \u0111\u00f3 ch\u1ec9 l\u00e0 c\u00e1ch l\u00e0m cho \u201c\u0111\u1ee1 tr\u01a1n\u201d, nh\u01b0ng ph\u00eda sau chi ti\u1ebft t\u01b0\u1edfng ch\u1eebng r\u1ea5t \u0111\u1eddi th\u01b0\u1eddng \u1ea5y l\u1ea1i l\u00e0 nh\u1eefng l\u00fd do k\u1ef9 thu\u1eadt v\u00e0 an to\u00e0n \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1c t\u00e0i li\u1ec7u x\u00e2y d\u1ef1ng chuy\u00ean ng\u00e0nh nh\u1eafc t\u1edbi t\u1eeb l\u00e2u.<\/p>\n

\n
\"L\u00fd<\/p>\n

\u1ea2nh minh h\u1ecda<\/p>\n

Khi d\u1ed1c tr\u01b0\u1edbc c\u1ed5ng tr\u1edf th\u00e0nh \u0111i\u1ec3m d\u1ec5 x\u1ea3y ra tai n\u1ea1n nh\u1ea5t<\/h2>\n

\u1ede Vi\u1ec7t Nam, ph\u1ea7n l\u1edbn nh\u00e0 ph\u1ed1 v\u00e0 nh\u00e0 trong ng\u00f5 \u0111\u1ec1u ph\u1ea3i n\u00e2ng n\u1ec1n cao h\u01a1n m\u1eb7t \u0111\u01b0\u1eddng \u0111\u1ec3 ch\u1ed1ng ng\u1eadp. \u0110i\u1ec1u n\u00e0y k\u00e9o theo m\u1ed9t \u0111o\u1ea1n d\u1ed1c ng\u1eafn ngay tr\u01b0\u1edbc c\u1ed5ng \u2013 n\u01a1i xe m\u00e1y ra v\u00e0o h\u00e0ng ng\u00e0y, \u00f4 t\u00f4 l\u00ean xu\u1ed1ng gara, v\u00e0 ng\u01b0\u1eddi gi\u00e0, tr\u1ebb nh\u1ecf th\u01b0\u1eddng xuy\u00ean \u0111i l\u1ea1i. Ch\u00ednh t\u1ea1i \u0111i\u1ec3m giao thoa \u1ea5y, nguy c\u01a1 tr\u01a1n tr\u01b0\u1ee3t l\u1ea1i cao h\u01a1n nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129.<\/p>\n

Kh\u00ed h\u1eadu n\u00f3ng \u1ea9m, m\u01b0a nhi\u1ec1u khi\u1ebfn b\u1ec1 m\u1eb7t b\u00ea t\u00f4ng ho\u1eb7c g\u1ea1ch l\u00e1t ngo\u00e0i tr\u1eddi r\u1ea5t d\u1ec5 xu\u1ea5t hi\u1ec7n m\u00e0ng n\u01b0\u1edbc m\u1ecfng, r\u00eau v\u00e0 b\u1ee5i m\u1ecbn. Ch\u1ec9 m\u1ed9t c\u01a1n m\u01b0a nh\u1ecf hay bu\u1ed5i s\u00e1ng n\u1ed3m \u1ea9m c\u0169ng \u0111\u1ee7 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u00e1m c\u1ee7a b\u00e1nh xe. Kh\u00f4ng \u00edt tai n\u1ea1n sinh ho\u1ea1t x\u1ea3y ra ngay tr\u01b0\u1edbc c\u1eeda nh\u00e0, t\u1eeb tr\u01b0\u1ee3t ng\u00e3 khi d\u1eaft xe \u0111\u1ebfn xe m\u00e1y tr\u00f4i l\u00f9i l\u00fac ch\u1edf n\u1eb7ng.<\/p>\n

C\u00e1c t\u00e0i li\u1ec7u c\u1ee7a American Concrete Institute \u2013 t\u1ed5 ch\u1ee9c chuy\u00ean ban h\u00e0nh h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt v\u1ec1 b\u00ea t\u00f4ng \u2013 t\u1eebng nh\u1ea5n m\u1ea1nh r\u1eb1ng b\u1ec1 m\u1eb7t d\u1ed1c b\u1eb1ng b\u00ea t\u00f4ng kh\u00f4ng n\u00ean ho\u00e0n thi\u1ec7n qu\u00e1 nh\u1eb5n. V\u1edbi l\u1ed1i v\u00e0o gara v\u00e0 d\u1ed1c nh\u00e0 d\u00e2n, ACI khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng b\u1ec1 m\u1eb7t t\u1ea1o nh\u00e1m ho\u1eb7c t\u1ea1o r\u00e3nh ngang \u0111\u1ec3 t\u0103ng ma s\u00e1t, \u0111\u1eb7c bi\u1ec7t trong \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt.<\/p>\n

\n
\"L\u00fd<\/p>\n

\u1ea2nh minh h\u1ecda<\/p>\n

Nh\u1eefng \u0111\u01b0\u1eddng k\u1ebb nh\u1ecf nh\u01b0ng l\u00e0m thay \u0111\u1ed5i \u0111\u1ed9 an to\u00e0n<\/h2>\n

Trong th\u1ef1c t\u1ebf s\u1eed d\u1ee5ng, c\u00e1c r\u00e3nh k\u1ebb tr\u00ean d\u1ed1c tr\u01b0\u1edbc c\u1ed5ng nh\u00e0 mang l\u1ea1i hi\u1ec7u qu\u1ea3 r\u1ea5t r\u00f5 r\u00e0ng. Khi xe m\u00e1y l\u00ean d\u1ed1c ch\u1eadm ho\u1eb7c ph\u1ea3i d\u1eebng gi\u1eefa d\u1ed1c, c\u00e1c r\u00e3nh gi\u00fap b\u00e1nh xe \u201c\u0103n\u201d v\u00e0o b\u1ec1 m\u1eb7t, h\u1ea1n ch\u1ebf hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t l\u00f9i. V\u1edbi \u00f4 t\u00f4 v\u00e0o gara trong nh\u00e0, \u0111\u1eb7c bi\u1ec7t l\u00e0 gara b\u00e1n h\u1ea7m, r\u00e3nh gi\u00fap xe \u1ed5n \u0111\u1ecbnh h\u01a1n khi l\u00ean xu\u1ed1ng \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p.<\/p>\n

Kh\u00f4ng ch\u1ec9 t\u0103ng ma s\u00e1t, c\u00e1c r\u00e3nh n\u00e0y c\u00f2n c\u00f3 t\u00e1c d\u1ee5ng tho\u00e1t n\u01b0\u1edbc. Theo c\u00e1c h\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf ram d\u1ed1c v\u00e0 b\u00e3i \u0111\u1ed7 xe c\u1ee7a Federal Highway Administration (FHWA), vi\u1ec7c chia nh\u1ecf d\u00f2ng n\u01b0\u1edbc tr\u00ean b\u1ec1 m\u1eb7t d\u1ed1c gi\u00fap h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng b\u00e1nh xe tr\u01b0\u1ee3t tr\u00ean l\u1edbp n\u01b0\u1edbc m\u1ecfng \u2013 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y m\u1ea5t ki\u1ec3m so\u00e1t khi tr\u1eddi m\u01b0a.<\/p>\n

Ch\u00ednh v\u00ec th\u1ebf, trong nhi\u1ec1u c\u00f4ng tr\u00ecnh nh\u00e0 \u1edf ri\u00eang, th\u1ee3 x\u00e2y th\u01b0\u1eddng ch\u1ee7 \u0111\u1ed9ng k\u1ebb r\u00e3nh ngay t\u1eeb khi \u0111\u1ed5 b\u00ea t\u00f4ng, thay v\u00ec ch\u1edd \u0111\u1ebfn khi x\u1ea3y ra tr\u01a1n tr\u01b0\u1ee3t m\u1edbi x\u1eed l\u00fd b\u1ed5 sung.<\/p>\n

\n
\"L\u00fd<\/p>\n

\u1ea2nh minh h\u1ecda<\/p>\n

Quan s\u00e1t c\u00e1c khu d\u00e2n c\u01b0 cho th\u1ea5y, c\u00f3 nh\u00e0 k\u1ebb r\u00e3nh ngang d\u00e0y, c\u00f3 nh\u00e0 l\u1ea1i k\u1ebb ch\u00e9o \u0111\u1ec1u tay. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y th\u1ef1c ch\u1ea5t xu\u1ea5t ph\u00e1t t\u1eeb \u0111\u1ed9 d\u1ed1c v\u00e0 chi\u1ec1u d\u00e0i d\u1ed1c. V\u1edbi nh\u1eefng \u0111o\u1ea1n d\u1ed1c ng\u1eafn nh\u01b0ng kh\u00e1 \u0111\u1ee9ng, r\u00e3nh ngang vu\u00f4ng g\u00f3c v\u1edbi h\u01b0\u1edbng d\u1ed1c gi\u00fap ch\u1ed1ng tr\u01b0\u1ee3t l\u00f9i hi\u1ec7u qu\u1ea3 h\u01a1n, r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi xe m\u00e1y \u2013 ph\u01b0\u01a1ng ti\u1ec7n ch\u00ednh c\u1ee7a nhi\u1ec1u gia \u0111\u00ecnh Vi\u1ec7t. Trong khi \u0111\u00f3, c\u00e1c d\u1ed1c d\u00e0i d\u1eabn xu\u1ed1ng gara \u00f4 t\u00f4 th\u01b0\u1eddng s\u1eed d\u1ee5ng r\u00e3nh ch\u00e9o kho\u1ea3ng 30\u201345 \u0111\u1ed9 \u0111\u1ec3 v\u1eeba t\u0103ng \u0111\u1ed9 b\u00e1m, v\u1eeba tho\u00e1t n\u01b0\u1edbc t\u1ed1t v\u00e0 gi\u1ea3m c\u1ea3m gi\u00e1c x\u00f3c khi xe ch\u1ea1y qua li\u00ean t\u1ee5c.<\/p>\n

Theo c\u00e1c manual thi\u1ebft k\u1ebf ram d\u1ed1c, kho\u1ea3ng c\u00e1ch r\u00e3nh th\u01b0\u1eddng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb trong kho\u1ea3ng 20\u201340 mm, \u0111\u1ed9 s\u00e2u kho\u1ea3ng 5\u201310 mm. \u0110\u00e2y l\u00e0 m\u1ee9c \u0111\u1ee7 \u0111\u1ec3 t\u0103ng ma s\u00e1t m\u00e0 kh\u00f4ng g\u00e2y rung l\u1eafc m\u1ea1nh hay l\u00e0m m\u00f2n l\u1ed1p qu\u00e1 nhanh. Nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0y c\u0169ng l\u00fd gi\u1ea3i v\u00ec sao c\u00e1c r\u00e3nh tr\u00ean d\u1ed1c nh\u00e0 d\u00e2n nh\u00ecn c\u00f3 v\u1ebb \u201cd\u00e0y\u201d, nh\u01b0ng l\u1ea1i r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n

\n
\"L\u00fd<\/p>\n

Kh\u00f4ng ch\u1ec9 nh\u00e0 \u1edf ri\u00eang, d\u1ed1c xu\u1ed1ng h\u1ea7m \u0111\u1ec3 xe t\u1ea1i c\u00e1c khu d\u00e2n c\u01b0, chung c\u01b0 c\u0169ng th\u01b0\u1eddng c\u00f3 ki\u1ec3u v\u1ea1ch tr\u1ed1ng tr\u01a1n, h\u1ed7 tr\u1ee3 tho\u00e1t n\u01b0\u1edbc th\u1ebf n\u00e0y (\u1ea2nh minh h\u1ecda)<\/p>\n

Nh\u00ecn l\u1ea1i, nh\u1eefng \u0111\u01b0\u1eddng k\u1ebb t\u01b0\u1edfng ch\u1eebng r\u1ea5t b\u00ecnh th\u01b0\u1eddng tr\u01b0\u1edbc c\u1ed5ng nh\u00e0 h\u00f3a ra l\u1ea1i l\u00e0 m\u1ed9t l\u1edbp \u201cb\u1ea3o hi\u1ec3m\u201d th\u1ea7m l\u1eb7ng. M\u1ed9t chi ti\u1ebft nh\u1ecf, chi ph\u00ed kh\u00f4ng \u0111\u00e1ng k\u1ec3, nh\u01b0ng n\u1ebfu b\u1ecf qua, gia ch\u1ee7 c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i nh\u1eefng b\u1ea5t ti\u1ec7n, hay \u0111\u00f4i khi l\u00e0 nh\u1eefng s\u1ef1 c\u1ed1 ngay tr\u01b0\u1edbc c\u1eeda nh\u00e0 m\u00ecnh.<\/p>\n<\/div>\n<\/figure>\n<\/div>\n<\/figure>\n<\/div>\n<\/figure>\n<\/div>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"

H\u1eb3n nhi\u1ec1u ng\u01b0\u1eddi \u0111\u00e3 b\u1eaft g\u1eb7p nh\u1eefng \u0111\u01b0\u1eddng r\u00e3nh n\u00e0y \u1edf nhi\u1ec1u ng\u00f4i nh\u00e0, th\u1ebf nh\u01b0ng t\u00e1c d\u1ee5ng th\u1eadt s\u1ef1 c\u1ee7a ch\u00fang l\u00e0 g\u00ec?<\/p>\n","protected":false},"author":2,"featured_media":4347,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[615],"tags":[761,427],"class_list":["post-3943","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phong-thuy","tag-nhieu-nha-xay-cong","tag-phong-thuy"],"_links":{"self":[{"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/posts\/3943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/comments?post=3943"}],"version-history":[{"count":1,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/posts\/3943\/revisions"}],"predecessor-version":[{"id":4028,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/posts\/3943\/revisions\/4028"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/media\/4347"}],"wp:attachment":[{"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/media?parent=3943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/categories?post=3943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/azan.com.vn\/blog\/wp-json\/wp\/v2\/tags?post=3943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}