(1 中国建筑科学研究院有限公司， 北京  100013； 2 军事科学院国防工程研究院， 北京  100036；3 建筑安全与环境国家重点实验室， 北京  100013)

［摘要］为了得到采用钢筋-砂浆面层交叉条带法加固砌体结构缩尺模型试件的破坏形态，评价其抗震储备能力，对经历地震模拟振动台试验后的模型试件进行了拟静力试验研究，分析了试件的破坏形态、荷载和位移特征，基于Pushover方法评价了试件的抗震能力。结果表明：试件的破坏模式为窗间墙体交叉条带附近开裂破坏，未形成贯通交叉裂缝，交叉条带法加固可有效改善窗间墙体的破坏形态；试件具有较好的变形能力和延性；对振动台试验后未破坏的试件采用拟静力试验方法再次进行试验的综合试验方法是可行的。

［关键词］砌体结构； 抗震加固； 交叉条带法； 拟静力试验； 模型试验

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)05-0013-04

Quasistatic test study on scaled model of  masonry structure reinforced by using steel bar-mortar layer crossed strip method

Chen Tao1,3， Zhou Xianxiang2， Liu Chang1,3， Xie Wei2， Li Jianying1,3

(1 China Academy of Building Research, Beijing 100013, China；2 Research Institute for National Defense Engineering of Military Sciences, Beijing 100036, China;3 State Key Laboratory of Building Safety and Environment, Beijing 100013, China)

Abstract:In order to obtain the failure modes and evaluate the seismic capacity of the specimen of  masonry structure  reinforced by using steel bar-mortar layer crossed strip method, the quasi-static test of the specimen after seismic simulation shaking table test was carried out. The failure modes, load and displacement characteristics of the specimen were analyzed, and the seismic capacity of the specimen was evaluated based on Pushover method. The results show that the failure mode of the specimens is that cracks are formed near the crossed strips between windows but not crossed and through the strips. The crossed strip can effectively improve the failure mode of  the wall between windows.  The specimens have good deformation capacity and ductility.  It is feasible to adopt the quasi-static test method  for undamaged specimens after shaking table test.

Keywords:masonry structure; seismic reinforcement; crossed strip method;  quasi-static test; model test

作者简介：陈涛，博士，高级工程师，Email：chentao@cabrtech.com。