{"id":22313,"date":"2024-02-28T11:27:08","date_gmt":"2024-02-28T04:27:08","guid":{"rendered":"https:\/\/metmar.net\/?p=22313"},"modified":"2024-03-02T08:53:04","modified_gmt":"2024-03-02T01:53:04","slug":"nghien-cuu-mo-hinh-du-bao-do-vong-cua-dam-be-tong-cot-thanh-gfrp","status":"publish","type":"post","link":"https:\/\/metmar.net\/nghien-cuu-mo-hinh-du-bao-do-vong-cua-dam-be-tong-cot-thanh-gfrp\/","title":{"rendered":"Nghi\u00ean c\u1ee9u m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o \u0111\u1ed9 v\u00f5ng c\u1ee7a d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t thanh GFRP"},"content":{"rendered":"
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Nh\u00f3m<\/strong> t\u00e1c gi\u1ea3:<\/b><\/span> Nguyen Van Cong(*)<\/sup>, Nguyen Van Ngon(**)<\/sup><\/span><\/div>\n
(*) <\/sup>Khoa K\u1ef9 thu\u1eadt – C\u00f4ng ngh\u1ec7, Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Quang Trung,<\/span><\/div>\n
(**) <\/sup>Khoa X\u00e2y d\u1ef1ng, Tr\u01b0\u1eddng Cao \u0111\u1eb3ng Giao th\u00f4ng Hu\u1ebf<\/span><\/div>\n
N\u01a1i \u0111\u0103ng:<\/strong><\/span> Vi\u00ean \u0111\u1ecba k\u1ef9 thu\u1eadt VGI, T\u1ea1p ch\u00ed \u0110\u1ecba k\u1ef9 thu\u1eadt (ISSN – 0868 – 279X), s\u1ed1 1, 2024.<\/span><\/span><\/div>\n
L\u0129nh v\u1ef1c:<\/strong><\/span>\u00a0K\u1ef9 thu\u1eadt v\u00e0 C\u00f4ng ngh\u1ec7;\u00a0<\/span>Lo\u1ea1i:<\/strong>\u00a0b\u00e0i b\u00e1o khoa h\u1ecdc;\u00a0<\/span>Th\u1ec3 lo\u1ea1i:<\/strong>\u00a0trong n\u01b0\u1edbc.<\/span><\/span><\/div>\n<\/div>\n
<\/div>\n
T\u00f3m t\u1eaft<\/strong><\/span><\/div>\n
C\u1ed1t thanh GFRP v\u1edbi kh\u1ea3 n\u0103ng kh\u00e1ng \u0103n m\u00f2n cao, \u0111ang ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng thay th\u1ebf c\u1ed1t th\u00e9p trong c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng ven bi\u1ec3n. Tuy nhi\u00ean, do \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u c\u1ed1t GFRP c\u00f3 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i th\u1ea5p h\u01a1n c\u1ed1t th\u00e9p, d\u1eabn \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng \u1ee9ng v\u1edbi tr\u1ea1ng th\u00e1i gi\u1edbi h\u1ea1n s\u1eed d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed9 v\u00f5ng, th\u01b0\u1eddng s\u1ebd c\u00f3 vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh khi thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t thanh GFRP. Trong khi t\u1ea1i Vi\u1ec7t Nam hi\u1ec7n ch\u01b0a c\u00f3 ti\u00eau chu\u1ea9n t\u00ednh to\u00e1n \u00e1p d\u1ee5ng cho k\u1ebft c\u1ea5u b\u00ea t\u00f4ng c\u1ed1t thanh GFRP. B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch, \u0111\u00e1nh gi\u00e1 c\u00e1c m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o \u0111\u1ed9 v\u00f5ng c\u1ee7a k\u1ebft c\u1ea5u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t thanh GFRP, tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a 115 m\u1eabu d\u1ea7m t\u1eeb c\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 c\u00f4ng b\u1ed1 v\u00e0 09 m\u1eabu d\u1ea7m \u0111\u01b0\u1ee3c t\u00e1c gi\u1ea3 th\u1ef1c hi\u1ec7n. D\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch h\u1ed3i quy phi tuy\u1ebfn, m\u1ed9t m\u00f4 h\u00ecnh \u0111i\u1ec1u ch\u1ec9nh \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 ngh\u1ecb cho k\u1ebft qu\u1ea3 d\u1ef1 b\u00e1o \u0111\u1ed9 v\u00f5ng ph\u00f9 h\u1ee3p h\u01a1n so v\u1edbi c\u00e1c m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o hi\u1ec7n nay.<\/span><\/div>\n
T\u1eeb kh\u00f3a: <\/strong><\/strong>Thanh p\u00f4lime c\u1ed1t s\u1ee3i<\/i><\/em>\u00a0<\/i><\/em>th\u1ee7y tinh;<\/i><\/em>\u00a0<\/i><\/em>\u0110<\/i><\/em>\u1ed9 v\u00f5ng; <\/i><\/em>\u1ee8<\/i><\/em>ng x\u1eed\u00a0<\/i><\/em>u\u1ed1n <\/i><\/span><\/div>\n
<\/div>\n
Abstract<\/b><\/span><\/div>\n
\n

GFRP reinforcement bars with high corrosion resistance, is increasingly used to replace steel reinforcement in coastal constructions. In addition, due to the properties of GFRP reinforcement, it has a lower elastic modulus than the reinforcement, leading to the conditions corresponding to the service limit state, especially the deflection, which often plays a decisive role while designing the GFRP reinforced concrete beam. While in Vietnam there is currently no standard calculation applied to GFRP reinforced concrete structures. This paper presents the results of analysis and evaluation of deflection prediction models of GFRP reinforced concrete beams. Based on the database of 115 beams from previous studies and 09 beams conducted by the author. In addition, using the nonlinear regression analysis method, an adjusted model has been proposed that gives more consistent deflection prediction results than current prediction models.<\/span><\/p>\n

Keywords: <\/b>Glass fiber reinforced polymer bar;<\/i><\/em>\u00a0<\/i><\/em>D<\/i><\/em>eflection; <\/i><\/em>F<\/i><\/em>lexural behavior<\/i><\/em><\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"C\u1ed1t thanh GFRP v\u1edbi kh\u1ea3 n\u0103ng kh\u00e1ng \u0103n m\u00f2n cao, \u0111ang ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng thay th\u1ebf c\u1ed1t th\u00e9p trong c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng ven bi\u1ec3n. Tuy nhi\u00ean, do \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u c\u1ed1t GFRP c\u00f3 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i th\u1ea5p h\u01a1n c\u1ed1t th\u00e9p, d\u1eabn \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng \u1ee9ng v\u1edbi tr\u1ea1ng th\u00e1i gi\u1edbi h\u1ea1n s\u1eed d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed9 v\u00f5ng, th\u01b0\u1eddng s\u1ebd c\u00f3 vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh khi thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t thanh GFRP. Trong khi t\u1ea1i Vi\u1ec7t Nam hi\u1ec7n ch\u01b0a c\u00f3 ti\u00eau chu\u1ea9n t\u00ednh to\u00e1n \u00e1p d\u1ee5ng cho k\u1ebft c\u1ea5u b\u00ea t\u00f4ng c\u1ed1t thanh GFRP. B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch, \u0111\u00e1nh gi\u00e1 c\u00e1c m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o \u0111\u1ed9 v\u00f5ng c\u1ee7a k\u1ebft c\u1ea5u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t thanh GFRP, tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a 115 m\u1eabu d\u1ea7m t\u1eeb c\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 c\u00f4ng b\u1ed1 v\u00e0 09 m\u1eabu d\u1ea7m \u0111\u01b0\u1ee3c t\u00e1c gi\u1ea3 th\u1ef1c hi\u1ec7n. D\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch h\u1ed3i quy phi tuy\u1ebfn, m\u1ed9t m\u00f4 h\u00ecnh \u0111i\u1ec1u ch\u1ec9nh \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 ngh\u1ecb cho k\u1ebft qu\u1ea3 d\u1ef1 b\u00e1o \u0111\u1ed9 v\u00f5ng ph\u00f9 h\u1ee3p h\u01a1n so v\u1edbi c\u00e1c m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o hi\u1ec7n nay.","protected":false},"author":12,"featured_media":22335,"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":[42,62,366,81,390,194,196],"tags":[1173,1174,1175,1176,1177,1178,1179],"class_list":["post-22313","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cnkt","category-tin-tuc-khoa-hoc-ky-thuat","category-de-tai-nghien-cuu-giang-vien","category-giang-vien-nckh-khoa-cnkt","category-nghien-cuu-khoa-hoc-phong-quan-ly-khoa-hoc-doi-ngoai-2","category-tai-lieu-ktcn","category-thong-bao-moi-cnkt","tag-thanh-polime-cot-soi-thuy-tinh","tag-do-vong","tag-ung-xu-uon","tag-glass-fiber-reinforced-polymer-bar","tag-deflection","tag-flexural-behavior","tag-gfrp"],"acf":[],"_links":{"self":[{"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts\/22313"}],"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=22313"}],"version-history":[{"count":8,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts\/22313\/revisions"}],"predecessor-version":[{"id":22362,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/posts\/22313\/revisions\/22362"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/media\/22335"}],"wp:attachment":[{"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/media?parent=22313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/categories?post=22313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/metmar.net\/wp-json\/wp\/v2\/tags?post=22313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}