摘要
介绍了混凝土板墙加固砖砌体墙的试验过程及现有的承载力计算方法背景。通过对不同形式的10面墙片进行水平低周反复荷载加载试验,研究了砖墙、单双面加固墙片以及震前震后加固墙片的工作性能,分析了砖砌体墙砂浆强度、混凝土板墙厚度、震前与震后加固、单双面板墙加固等因素对原砖墙承载力、刚度以及延性的影响。可看出加固后墙片的抗震性能得到显著提高,双面厚60mm混凝土板墙加固后墙片的抗剪承载力等同于厚120mm混凝土剪力墙。同时,验证了建筑抗震加固规程中承载力增强系数取值的合理性。
The test process of brick wall strengthened with concrete splint and the existing calculation analysis method about bearing capacity are introduced.Through a series of low-cycle repeated loads experiments,it is studied the performance of concrete shear wall and brick wall strengthened with concrete splint,then the factors were analyzed about bearing capacity and rigidity of wall.Based on the analysis,the anti-seismic performance of the wall strengthened with concrete splint is enhanced clearly and the shear bearing capacity of brick wall strengthened with double 60mm concrete splints is equivalent to the 120mm shear wall.The calculation parameters in the code have good accordance with the experiment results.
出处
《建筑结构》
CSCD
北大核心
2011年第11期94-97,171,共5页
Building Structure
基金
"十一五"国家科技支撑计划项目(2006BAJ03A03)
关键词
砖砌体
砌体加固
混凝土板墙
水平低周反复试验
加固
brick wall
masonry structure
concrete splint
low-cycle repeated loads experiment
strengthening
