砌体结构窗下墙地震破坏研究

Study on earthquake damage to masonry structure window belly wall

利用数值模拟试验方法建立3组砌体墙模型,设计不同窗下墙跨高比、不同墙体开洞率以及不同墙体高宽比的一系列算例。分析这些因素对砌体结构窗下墙地震破坏影响程度,并提出控制条件,使窗下墙先于窗间墙破坏,实现结构抗震多道设防的抗震设防目标。

In this paper, three groups of masonry wall models were established by using numerical simulation test, a series of numerical examples were designed according to various span-depth ratio of window belly wall, different ra- tio of holes and aspect ratio of the wall. In order to achieve the seismic fortification goal of multi-defence system for seismic structure, the seismic damage degree of masonry structure window belly wall caused by these factors was analyzed, and the control conditions were put forward to make the damage of window belly wall earlier than that of wall pier under earthquake.