Experimental study on in-plane behavior of composite frame slabs and the influence of out-of-plane effect

被引：1
|
作者：
Pan, Wen-Hao [1 ,2 ]
Tao, Mu-Xuan [1 ]
Zhao, Chuan-Hao [2 ]
Ding, Ran [1 ]
Xu, Li-Yan [1 ,3 ]
机构：
[1] Tsinghua Univ, Beijing Engn Res Ctr Steel & Concrete Composite St, Dept Civil Engn, Beijing 100084, Peoples R China
[2] Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou 310058, Peoples R China
[3] Beihang Univ, Sch Transportat Sci & Engn, Beijing 100191, Peoples R China
来源：
ENGINEERING STRUCTURES | 2023年 / 280卷
基金：
中国国家自然科学基金;
关键词：
Steel-concrete composite frame; Frame slab; In-plane behavior; Out-of-plane effect; Shear; BEAM-COLUMN MODEL; SEISMIC RESPONSE; NONLINEAR-ANALYSIS; R/C FRAMES; BUILDINGS; SHEAR; FLEXIBILITY; ELEMENT; FULL; SLIP;
D O I：
10.1016/j.engstruct.2023.115707
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper experimentally investigated the in-plane behavior of a steel-concrete composite frame slab under cyclic loading by considering the influence of the out-of-plane effect. A pure in-plane loading test and two in -plane loading tests of frame slabs with different out-of-plane loads were designed and conducted. Subse-quently, the test observations, load-displacement relationships, and shear and flexural deformation components were discussed to investigate the in-plane load resistance behaviors and failure mechanisms of the composite frame slabs with different out-of-plane loads. The experimental results of the pure in-plane loading test demonstrated an evident shear cracking concentration behavior and a pinching hysteretic curve associated with a typical shear-tension failure mode of the composite frame slab. Further, the in-plane loading test of the composite frame slab with small out-of-plane loads also exhibited a typical shear-tension failure mode, and thus had a load-displacement relationship similar to that of the pure in-plane loading test. In contrast, the in-plane loading test with large out-of-plane loads exhibited a horizontal shear failure mode, and thus exhibited a load-displacement curve with a more obvious pinching effect and significantly decreased ultimate load capacity. In addition, the influence of the out-of-plane loads on the in-plane stiffness of the composite frame slab was analyzed.
引用
收藏
页数：13
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