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试验研究的目的是对比设有构造柱与未设置构造柱的大型墙片(高2.8m、宽6m、厚0.24m)在往复水平荷载作用下的力学性能和破坏机理。试验表明,未设置构造柱的素墙片的倒塌破坏是墙片开裂后产生“脱体效应”的结果;仅用延性比的概念难以确切表达砖墙片的变形能力;本文提出了“循环变形能力” 的概念,并认为用这一概念衡量砖墙片的变形能力比较确切;循环变形能力使有柱墙片具有较好的抗倒塌能力;试验还表明,墙片的贯通裂缝不是某一级荷载下一瞬间形成的。
The purpose of the test study is to compare the mechanical properties and failure mechanisms of large-scale wall plates (2.8 m high, 6 m wide and 0.24 m thick) with and without structural columns under reciprocating horizontal loads. Tests have shown that the failure of the collapse of a plain wall without a structural column is the result of a “removal effect” after the cracking of the wall; it is difficult to accurately express the deformability of a brick wall using only the concept of ductility ratio; this paper proposes “circular deformation”. The concept of “capacity”, and that the use of this concept to measure the deformability of the brick wall is more accurate; cyclic deformation capacity so that the column wall has a better resistance to collapse; the test also shows that the wall crack is not a level The load is formed the next moment.