- 摘 要
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(1 江南大學環(huán)境與土木工程學院, 無錫 214122; 2 上海歐本鋼結構有限公司, 上海 200127)
摘要: 基于課題組提出的新型外包波紋鋼板-混凝土組合梁以及對其正彎矩受力性能的研究,以下翼緣鋼板厚度為參數(shù),進行了 2 根新型組合梁的靜力加載試驗,以研究其負彎矩受力性能。 在試驗研究的基礎上,推導出新型外包波紋鋼板-混凝土組合梁負彎矩區(qū)抗彎承載力計算公式,并用有限元對公式進行驗證,計算值與試驗和有限元值吻合良好,可供工程應用參考。
關鍵詞: 外包波紋鋼板-混凝土組合梁; 負彎矩區(qū); 抗彎承載力; 鋼板厚度
中圖分類號:TU398 文獻標志碼:A 文章編號:1002-848X(2022)13-0043-05
DOI:10. 19701 / j. jzjg. 20210235
Study on mechanical behavior of new type steel-encased concrete composite beam with corrugated steel webs under negative bending
ZOU Yun1, XIE Mengjie1, WANG Chengquan1, QIAN Huichao1, CHEN Ming2, WU Yichao2
(1 School of Environment & Civil Engineering, Jiangnan University, Wuxi 214122, China;2 Shanghai Open Steel Structure Co. , Ltd. , Shanghai 200127, China)
Abstract: Based on the new type steel-encased concrete composite beam with corrugated steel webs proposed by the research group and the study of its positive bending behavior, static loading tests were carried out on two new type composite beams with lower flange plate thickness as a parameter to study the negative bending behavior. On the basis of the experimental research, the calculation formula of the flexural capacity in the negative moment of the new type composite beam was derived, and the formula was verified by the finite element method. The calculated values are in good agreement with the experimental and finite element values, which can be used for reference in engineering application.
Keywords:steel-encased concrete composite beam with corrugated steel webs; negative bending area; bending capacity; plate thickness
∗2018 年科技廳社會發(fā)展面上項目( BE2018625) ,江蘇省自然科學基金資助項目( BK20180623) ,2016 年江蘇省建筑產(chǎn)業(yè)現(xiàn)代化示范基地項目。第一作者:鄒昀,博士,教授,碩士生導師,主要從事裝配式結構體系和組合結構研究,Email:zouyun_22@ 126.com。通信作者:王城泉,博士,副研究員,主要從事鋼-混凝土組合結構、結構抗震與損傷控制理論及技術等方面的研究,Email:wangcq@ zucc. edu. cn。[引用本文] 鄒昀,謝夢潔,王城泉,等. 新型外包波紋鋼板-混凝土組合梁負彎矩受力性能研究[ J] . 建筑結構,2022,52( 13 ) : 43-47. ZOU Yun, XIE Mengjie, WANG Chengquan, et al. Study on mechanical behavior of new type steel-encased concrete composite beam with corrugated steel webs under negative bending[ J] . Building Structure,2022,52(13) :43-47.
