Quasi-Static Monotonic and Cyclic Tests on Composite Spandrels
Quasi-Static Monotonic and Cyclic Tests on Composite Spandrels
复制标题
复合拱肩的准静态单调和循环试验
DOI：
10.1193/1.4000058
复制
发表时间：
2012
影响因子：
5
通讯作者：
A. Dazio
中科院分区：
文献类型：
--
作者：
K. Beyer;A. Dazio
在现代无筋砌体 (URM) 墙中，垂直桥墩在楼层处通过钢筋混凝土 (RC) 环梁（也称为粘结梁）或 RC 板连接。特别是，在外墙中，拱肩元件还包括位于 RC 梁或板顶部的砖石拱肩（“复合”拱肩）。数值模拟表明，拱肩显着影响 URM 建筑在承受地震荷载时的整体行为。尽管复合材料拱肩的循环行为很重要，但仍缺乏实验数据。本文介绍了五个复合拱肩的实验结果。每个测试单元均由 RC 梁、砌体拱肩和对拱肩应用实际边界条件所需的相邻砌体桥墩组成。研究的参数包括荷载类型、砖块类型和 RC 梁的配筋量。
In modern unreinforced masonry (URM) walls, the vertical piers are connected at the story levels by reinforced concrete (RC) ring beams—also known as bond beams—or RC slabs. Particularly, in the outer walls, the spandrel element also includes a masonry spandrel on top of the RC beam or slab (“composite” spandrel). Numerical simulations have shown that spandrels significantly influence the global behavior of the URM building when subjected to seismic loading. Despite their importance, experimental data on the cyclic behavior of composite spandrels were lacking. This paper presents the results of an experimental campaign on five composite spandrels. Each test unit consisted of an RC beam, a masonry spandrel and the adjacent masonry piers required for applying realistic boundary conditions to the spandrel. The investigated parameters included the type of loading, the brick type and the reinforcement content of the RC beam.