Experimental studies on the mechanical behaviors of cold-formed thin-walled steel-foam concrete composite walls

IF 2.1 4区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY
Haojie Fang, Zhenghao Qian, Bin Yao, Weiyong Wang
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引用次数: 0

Abstract

This paper presents experimental studies to investigate the compressive and shear behaviors of cold-formed thin-walled steel-foam concrete composite walls. Three compressive walls and three shear walls were tested. The failure mode and load-displacement curve of the specimen were obtained from the compressive experiment. The compressive wall infilled with foam concrete mainly experienced distortion buckling of the end stud and local crushing failure of the concrete. The stud openings had a limited effect on the compressive bearing capacity of the composite wall. The failure mode and load-deformation curve were obtained in shear tests. The ductility index, shear stiffness, yield load, peak load, energy dissipation, and stiffness degradation were analyzed. The shear composite wall filled with foam concrete mainly occurred concrete crushing failure, local or distortional buckling failure of the end stud, and cracking failure of the calcium silicate board. The shear stiffness, shear capacity, ductility, and energy dissipation of the composite wall could be significantly improved after filling with foam concrete.
冷弯薄壁钢-泡沫混凝土复合墙体力学行为的实验研究
本文通过实验研究了冷弯薄壁钢-泡沫混凝土复合墙体的抗压和抗剪性能。共测试了三面抗压墙和三面抗剪墙。抗压实验得出了试样的破坏模式和荷载-位移曲线。用泡沫混凝土填充的抗压墙主要经历了端部螺栓的扭曲屈曲和混凝土的局部破碎破坏。螺栓开口对复合墙体的抗压承载能力影响有限。剪切试验得出了破坏模式和荷载-变形曲线。分析了延性指数、剪切刚度、屈服荷载、峰值荷载、能量耗散和刚度退化。泡沫混凝土填充的复合剪力墙主要出现混凝土压溃、端部螺栓局部或扭曲屈曲破坏以及硅酸钙板开裂破坏。填充泡沫混凝土后,复合墙体的抗剪刚度、抗剪承载力、延展性和能量耗散均有明显改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Advances in Structural Engineering
Advances in Structural Engineering 工程技术-工程:土木
CiteScore
5.00
自引率
11.50%
发文量
230
审稿时长
2.3 months
期刊介绍: Advances in Structural Engineering was established in 1997 and has become one of the major peer-reviewed journals in the field of structural engineering. To better fulfil the mission of the journal, we have recently decided to launch two new features for the journal: (a) invited review papers providing an in-depth exposition of a topic of significant current interest; (b) short papers reporting truly new technologies in structural engineering.
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