Tr\u00ean c\u00f4ng tr\u01b0\u1eddng x\u00e2y d\u1ef1ng th\u01b0\u1eddng ch\u1ea5t \u0111\u1ea7y c\u00e1c lo\u1ea1i c\u1ed1t th\u00e9p to nh\u1ecf kh\u00e1c nhau, trong \u0111\u00f3, c\u00f3 m\u1ed9t s\u1ed1 c\u1ed1t th\u00e9p b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c c\u00e1n th\u00e0nh g\u00e2n ki\u1ec3u xo\u1eafn \u1ed1c, tr\u00e1i l\u1ea1i m\u1ed9t s\u1ed1 ho\u00e0n to\u00e0n tr\u01a1n nh\u1eb5n. T\u1ea1i sao v\u1eady?<\/p>\n\n\n\n
V\u1eadt li\u1ec7u th\u00e9p th\u00f4ng th\u01b0\u1eddng trong x\u00e2y d\u1ef1ng, tu\u1ef3 theo c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu k\u00e9o c\u1ee7a n\u00f3, c\u00f3 th\u1ec3 chia th\u00e0nh b\u1ed1n c\u1ea5p, trong \u0111\u00f3 th\u00e9p c\u1ea5p I c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 th\u1ea5p nh\u1ea5t, tr\u00ean m\u1ed7i cm2 c\u00f3 th\u1ec3 ch\u1ecbu l\u1ef1c k\u00e9o 2,35 x 10 N, th\u00e9p c\u1ea5p II m\u1ed7i cm2 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c k\u00e9o 3,34 x 10 N, ch\u00fang l\u00e0 v\u1eadt li\u1ec7u th\u00e9p ch\u1ee7 y\u1ebfu \u0111\u1ec3 \u0111\u00fac b\u00eat\u00f4ng c\u1ed1t th\u00e9p \u1edf c\u00f4ng tr\u01b0\u1eddng. C\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a th\u00e9p c\u1ea5p III v\u00e0 c\u1ea5p IV \u0111\u01b0\u01a1ng nhi\u00ean l\u00e0 c\u00e0ng l\u1edbn h\u01a1n, th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u1ea5u ki\u1ec7n b\u00eat\u00f4ng c\u1ed1t th\u00e9p \u0111\u00fac s\u1eb5n \u1edf trong nh\u00e0 m\u00e1y.<\/p>\n\n\n\n
\u0110\u1ed9 to nh\u1ecf c\u1ee7a c\u1ed1t th\u00e9p \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng s\u1ed1 mm c\u1ee7a \u0111\u01b0\u1eddng k\u00ednh, c\u00e1ch nhau t\u1eebng b\u1eadc 2 mm, v\u00ed d\u1ee5 \u0111\u01b0\u1eddng k\u00ednh 4 mm, 6 mm, 8 mm, 10 mm v.v. cho \u0111\u1ebfn 22 mm; c\u1ed1t th\u00e9p c\u00f3 \u0111\u01b0\u1eddng k\u00ednh v\u01b0\u1ee3t qu\u00e1 22 mm th\u00ec l\u1ea1i c\u00e1ch nhau t\u1eebng b\u1eadc 3 mm, v\u00ed d\u1ee5 25 mm, 28 mm v.v.<\/p>\n\n\n\n
C\u01b0\u1eddng \u0111\u1ed9 th\u00e9p c\u1ea5p I t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p; th\u01b0\u1eddng d\u00f9ng \u1edf nh\u1eefng ch\u1ed7 ch\u1ecbu l\u1ef1c t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf. D\u00f9 b\u1ec1 m\u1eb7t c\u1ed1t th\u00e9p tr\u01a1n nh\u1eb5n, m\u1ee9c \u0111\u1ed9 k\u1ebft h\u1ee3p gi\u1eefa n\u00f3 v\u1edbi b\u00eat\u00f4ng c\u0169ng c\u00f3 th\u1ec3 tho\u1ea3 m\u00e3n y\u00eau c\u1ea7u, v\u00ec v\u1eady th\u00e9p c\u1ea5p I l\u00e0 th\u00e9p tr\u01a1n th\u01b0\u1eddng g\u1ecdi l\u00e0 “th\u00e9p tr\u00f2n”, ph\u1ea1m vi \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a n\u00f3 b\u1eaft \u0111\u1ea7u t\u1eeb 4 mm. Nh\u01b0ng \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng ch\u1ecbu k\u00e9o c\u1ee7a c\u1ed1t th\u00e9p trong b\u00eat\u00f4ng, \u1edf hai \u0111\u1ea7u c\u1ee7a n\u00f3 th\u01b0\u1eddng u\u1ed1n cong nh\u01b0 h\u00ecnh c\u00e1n \u00f4 che m\u01b0a. Th\u00e9p c\u1ea5p II c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao, th\u01b0\u1eddng d\u00f9ng \u1edf nh\u1eefng n\u01a1i ch\u1ecbu l\u1ef1c t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn. V\u00ec ch\u1ecbu l\u1ef1c l\u1edbn, n\u00ean gi\u1eefa c\u1ed1t th\u00e9p v\u00e0 b\u00ea t\u00f4ng c\u1ea7n “c\u1eafn” ch\u1eb7t v\u1edbi nhau, do \u0111\u00f3, b\u1ec1 m\u1eb7t c\u1ee7a lo\u1ea1i c\u1ed1t th\u00e9p n\u00e0y \u0111\u01b0\u1ee3c c\u00e1n th\u00e0nh g\u00e2n xo\u1eafn \u1ed1c, n\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 “th\u00e9p g\u00e2n xo\u1eafn”. \u0110\u01b0\u1eddng k\u00ednh c\u1ee7a n\u00f3 t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn, b\u1eaft \u0111\u1ea7u t\u1eeb 10 mm tr\u1edf \u0111i.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: Th\u00e9p tr\u00f2n; Th\u00e9p g\u00e2n xo\u1eafn.<\/p>\n","protected":false},"excerpt":{"rendered":"
Tr\u00ean c\u00f4ng tr\u01b0\u1eddng x\u00e2y d\u1ef1ng th\u01b0\u1eddng ch\u1ea5t \u0111\u1ea7y c\u00e1c lo\u1ea1i c\u1ed1t th\u00e9p to nh\u1ecf kh\u00e1c nhau, trong \u0111\u00f3, c\u00f3 m\u1ed9t s\u1ed1 c\u1ed1t th\u00e9p b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c c\u00e1n th\u00e0nh g\u00e2n ki\u1ec3u xo\u1eafn \u1ed1c, tr\u00e1i l\u1ea1i m\u1ed9t s\u1ed1 ho\u00e0n to\u00e0n tr\u01a1n nh\u1eb5n. T\u1ea1i sao v\u1eady? V\u1eadt li\u1ec7u th\u00e9p th\u00f4ng th\u01b0\u1eddng trong x\u00e2y d\u1ef1ng, tu\u1ef3 theo […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,16],"tags":[],"class_list":["post-8977","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-ky-thuat"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8977"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8977\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}