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Nonlinear behavior of composite shear walls with vertical steel encased profiles

机译：垂直钢包裹型材的复合剪力墙的非线性特性

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摘要

Research on seismic engineering of buildings using composite steel-concrete structural systems has increased in the past decade. One horizontal resisting system for buildings, placed in seismic areas, is the composite steel-concrete structural shear wall with steel encased profiles (CSRCW). The benefits of this structural system, relative to more common systems, include the performance characteristics when subjected to service or ultimate loads. The present paper summarizes the experimental results of recent research made on six experimental steel-concrete composite elements 1:3 scale, tested in laboratory under cyclic lateral loads. The experimental elements differ by the arrangement of the steel shapes embedded in the cross section of the wall and by the cross section type of the steel encased profiles. All specimens were tested under constant vertical load and cyclically increasing horizontal (lateral) loads. The tests were performed until failure. Using the recorded data during the tests, the following parameters are presented and discussed: maximum load capacity, stress and strain distribution in structural components (reinforcements, structural steel and on concrete surface), interstory drifts, cracking patterns, deformation and degradation capacity.
机译：在过去的十年中，对使用复合钢混凝土结构系统的建筑物进行地震工程的研究有所增加。一种放置在地震区域的建筑物水平抵抗系统是带有钢包裹型材的复合钢-混凝土结构剪力墙（CSRCW）。与更常见的系统相比，此结构系统的优势包括在服役或极限载荷下的性能特征。本文总结了最近的研究成果，该研究成果是在周期性横向载荷下，在实验室测试的六个比例为1：3的钢-混凝土复合复合材料的试验结果。实验元素的不同之处在于，嵌入在墙体横截面中的钢形状的排列方式以及被钢包裹的型材的横截面类型。所有样品均在恒定的垂直载荷和周期性增加的水平（侧向）载荷下进行测试。进行测试直到失败。使用测试过程中的记录数据，提出并讨论以下参数：最大负载能力，结构部件（钢筋，结构钢和混凝土表面）中的应力和应变分布，层间漂移，裂缝模式，变形和降解能力。

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