材料科学
桁架
延展性(地球科学)
复合数
结构工程
复合材料
变形(气象学)
刚度
压缩(物理)
芯(光纤)
屈曲
填充
蠕动
工程类
作者
Ying Qin,Xin Chen,Xingyu Zhu,Xi Wang,Yuanze Chen
出处
期刊:Steel and Composite Structures
[Techno-Press]
日期:2020-01-01
卷期号:35 (2): 159-169
标识
DOI:10.12989/scs.2020.35.2.159
摘要
Sandwich composite wall consists of concrete core attached by two external steel faceplates. It combines the advantage of steel and concrete. The appropriate composite action between steel faceplate and concrete core is achieved by using adequate mechanical connectors. This research studied the compressive behavior of the sandwich composite walls using steel trusses to bond the steel faceplates to concrete infill. Four short specimens with different wall width and thickness of steel faceplate were designed and tested under axial compression. The test results were comprehensively evaluated in terms of failure modes, load versus axial and lateral deformation responses, resistance, stiffness, ductility, strength index, and strain distribution. The test results showed that all specimens exhibited high resistance and good ductility. Truss connectors offer better restraint to walls with thinner faceplates and smaller wall width. In addition, increasing faceplate thickness is more effective in improving the ultimate resistance and axial stiffness of the wall.
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