{"id":17276,"date":"2022-06-04T09:32:51","date_gmt":"2022-06-04T02:32:51","guid":{"rendered":"https:\/\/metmar.net\/?p=17276"},"modified":"2022-06-04T09:41:57","modified_gmt":"2022-06-04T02:41:57","slug":"ket-cau-dam-btct-du-ung-luc-mat-cat-chu-u-va-kha-nang-ung-dung-cho-cac-cau-tren-duong-bo-tai-viet-nam","status":"publish","type":"post","link":"https:\/\/metmar.net\/ket-cau-dam-btct-du-ung-luc-mat-cat-chu-u-va-kha-nang-ung-dung-cho-cac-cau-tren-duong-bo-tai-viet-nam\/","title":{"rendered":"K\u1ebft c\u1ea5u d\u1ea7m BTCT d\u1ef1 \u1ee9ng l\u1ef1c m\u1eb7t c\u1eaft ch\u1eef U v\u00e0 kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng cho c\u00e1c c\u1ea7u tr\u00ean \u0111\u01b0\u1eddng b\u1ed9 t\u1ea1i Vi\u1ec7t Nam"},"content":{"rendered":"
\n

Nh\u00f3m t\u00e1c gi\u1ea3: <\/strong><\/span>Nguyen Van Ngon(1*)<\/sup>, Nguyen Xuan Thuy(1)<\/sup>\u00a0, Nguyen Van Cong(2)<\/sup><\/span><\/p>\n

(1) <\/sup>Tr\u01b0\u1eddng Cao \u0111\u1eb3ng Giao th\u00f4ng Hu\u1ebf.(2) <\/sup>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Quang Trung.<\/span><\/p>\n

N\u01a1i \u0111\u0103ng:<\/strong><\/span> Chuy\u00ean san K\u1ef9 thu\u1eadt v\u00e0 C\u00f4ng ngh\u1ec7, T\u1ea1p ch\u00ed Khoa h\u1ecdc \u0110\u1ea1i h\u1ecdc Hu\u1ebf, 8A (122), 2016.<\/span><\/span><\/p>\n<\/div>\n

L\u0129nh v\u1ef1c:<\/strong><\/span>\u00a0K\u1ef9 thu\u1eadt v\u00e0 C\u00f4ng ngh\u1ec7;\u00a0Lo\u1ea1i:<\/strong>\u00a0<\/span>b\u00e0i b\u00e1o khoa h\u1ecdc;\u00a0Th\u1ec3 lo\u1ea1i:<\/strong><\/span>\u00a0trong n\u01b0\u1edbc.<\/span><\/div>\n
T\u00f3m t\u1eaft<\/strong><\/div>\n
K\u1ebft c\u1ea5u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t th\u00e9p d\u1ef1 \u1ee9ng l\u1ef1c m\u1eb7t c\u1eaft ch\u1eef U (d\u1ea7m U) v\u1edbi kh\u1ea3 n\u0103ng v\u01b0\u1ee3t nh\u1ecbp l\u1edbn, \u1ed5n \u0111\u1ecbnh h\u01a1n trong qu\u00e1 tr\u00ecnh thi c\u00f4ng, khai th\u00e1c v\u00e0 gi\u00e1 th\u00e0nh r\u1ebb h\u01a1n c\u00e1c lo\u1ea1i d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t th\u00e9p \u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ph\u1ed5 bi\u1ebfn \u1edf n\u01b0\u1edbc ta nh\u01b0 d\u1ea7m m\u1eb7t c\u1eaft ti\u1ebft di\u1ec7n ki\u1ec3u ch\u1eef T, I, Super-T. B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch, so s\u00e1nh gi\u1eefa k\u1ebft c\u1ea5u d\u1ea7m U v\u1edbi c\u00e1c lo\u1ea1i d\u1ea7m I, T, SuperT v\u1ec1 m\u1ed9t s\u1ed1 ch\u1ec9 ti\u00eau kinh t\u1ebf, k\u1ef9 thu\u1eadt, nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a d\u1ea7m U v\u1edbi nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nhau v\u00e0 c\u00f4ng ngh\u1ec7 thi c\u00f4ng d\u1ea7m U. T\u1eeb \u0111\u00f3 m\u1edf ra th\u00eam m\u1ed9t h\u01b0\u1edbng m\u1edbi khi l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng \u00e1n k\u1ebft c\u1ea5u nh\u1ecbp trong c\u00f4ng t\u00e1c thi\u1ebft k\u1ebf c\u00e1c c\u00f4ng tr\u00ecnh c\u1ea7u tr\u00ean \u0111\u01b0\u1eddng \u00f4 t\u00f4 \u1edf n\u01b0\u1edbc ta<\/span>.<\/div>\n
T\u1eeb kh\u00f3a: <\/strong><\/span>C\u1ea7u d\u1ea7m U, d\u1ea7m U, d\u1ea7m U \u0111\u00fac s\u1eb5n, k\u1ebft c\u1ea5u nh\u1ecbp<\/span><\/span><\/div>\n
<\/div>\n
\n

Abstract:<\/b><\/p>\n

Structural concrete-reinforced prestressed U-shaped beams (U-beams) with the capabilities of larger span, higher stability over the course of construction, lower construction and maintenance cost than common T, I, or Super-T shaped concrete-reinforced beams. This paper analyzes and compares the structures of U-beams with those of other types such as I, T, Super-T in terms of economic and technical indicators. It also studies the capacity of U-beams to bear the pressure in different conditions and the construction technology. Therefrom, a new perspective of selection of superstructures in the design of highway bridges in our country may arise.<\/p>\n

Keywords: <\/b><\/span>U-beam bridge, U-girder, U-shaped precast, superstructures<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"K\u1ebft c\u1ea5u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t th\u00e9p d\u1ef1 \u1ee9ng l\u1ef1c m\u1eb7t c\u1eaft ch\u1eef U (d\u1ea7m U) v\u1edbi kh\u1ea3 n\u0103ng v\u01b0\u1ee3t nh\u1ecbp l\u1edbn, \u1ed5n \u0111\u1ecbnh h\u01a1n trong qu\u00e1 tr\u00ecnh thi c\u00f4ng, khai th\u00e1c v\u00e0 gi\u00e1 th\u00e0nh r\u1ebb h\u01a1n c\u00e1c lo\u1ea1i d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t th\u00e9p \u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ph\u1ed5 bi\u1ebfn \u1edf n\u01b0\u1edbc ta nh\u01b0 d\u1ea7m m\u1eb7t c\u1eaft ti\u1ebft di\u1ec7n ki\u1ec3u ch\u1eef T, I, Super-T. B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch, so s\u00e1nh gi\u1eefa k\u1ebft c\u1ea5u d\u1ea7m U v\u1edbi c\u00e1c lo\u1ea1i d\u1ea7m I, T, SuperT v\u1ec1 m\u1ed9t s\u1ed1 ch\u1ec9 ti\u00eau kinh t\u1ebf, k\u1ef9 thu\u1eadt, nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a d\u1ea7m U v\u1edbi nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nhau v\u00e0 c\u00f4ng ngh\u1ec7 thi c\u00f4ng d\u1ea7m U. T\u1eeb \u0111\u00f3 m\u1edf ra th\u00eam m\u1ed9t h\u01b0\u1edbng m\u1edbi khi l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng \u00e1n k\u1ebft c\u1ea5u nh\u1ecbp trong c\u00f4ng t\u00e1c thi\u1ebft k\u1ebf c\u00e1c c\u00f4ng tr\u00ecnh c\u1ea7u tr\u00ean \u0111\u01b0\u1eddng \u00f4 t\u00f4 \u1edf n\u01b0\u1edbc ta.","protected":false},"author":12,"featured_media":17279,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[42,62,81],"tags":[799,800,801,802],"class_list":["post-17276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cnkt","category-tin-tuc-khoa-hoc-ky-thuat","category-giang-vien-nckh-khoa-cnkt","tag-cau-dam-u","tag-dam-u","tag-dam-u-duc-san","tag-ket-cau-nhip"],"acf":[],"_links":{"self":[{"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts\/17276"}],"collection":[{"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/comments?post=17276"}],"version-history":[{"count":4,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts\/17276\/revisions"}],"predecessor-version":[{"id":17282,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts\/17276\/revisions\/17282"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/media\/17279"}],"wp:attachment":[{"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/media?parent=17276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/categories?post=17276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/tags?post=17276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}