预应力扣压穿合式砌体墙体在水平低周反复荷载下的试验研究  

Quasi-Static Reversed Cyclic Loading Test of Prestressed Withhold Tenon Type Masonry

作　　者：李广辉[1] 邓思华[1] 李晨光[2] 

机构地区：[1]北京建筑大学,北京100044 [2]北京市建筑工程研究院有限责任公司,北京100039

出　　处：《土木建筑工程信息技术》2016年第3期89-95,共7页Journal of Information Technology in Civil Engineering and Architecture

摘　　要：预应力扣压穿合式砌体是一种新型的砌体材料,经过试验研究为该砌体结构的应用推广提供理论依据。此次试验总共有6片足尺墙体,其中包括4片无芯柱配置预应力筋有砂浆墙体构件、1片无芯柱配置预应力筋无砂浆墙体构件、1片有芯柱无配置预应力筋有砂浆墙体构件。通过对墙体施加水平低周反复荷载,得出墙体在不同工况即有无芯柱有砂浆、无芯柱无砂浆及不同预应力施加状况下的非线性静力特性,包括试验构件开裂时的荷载和位移,构件达到极限状态时的荷载和位移,构件在破坏时的过程和形态,根据记录的数据绘制滞回曲线和骨架曲线,分析对比构件的延性、刚度退化性能、耗能性能等抗震性能指标,同时得到构件在预应力筋的最合适的轴压比。Prestressed withhold tenon type masonry is a new type of masonry material. It provides a theoretical basis for the application of this new masonry structure through the promotion of experimental research. This test incluves a total of six prestressed withhold fit through masonry walls,including four tendons with no stem test mortar walls,a configuration tendons to free the stem no mortar test wall,and 1 piece with no tendons experimental stem wall. Through quasi-static reversed cyclic loading test of masonry walls,the results show that the nonlinear static characteristics of walls with tendons with no stem test mortar,tendons no stem and mortar,no tendons experimental stem wall. The results include the loads and displacements when walls cracking and reaching the limit state. It also shows the walls＇ destruction process and shapes. The hysteretic curves and skeleton curves can be plotted according to the test data. It analyzes and compares the walls＇ ductility,stiffness degradation performance,seismic energy dissipation performance,and obtains walls＇ most suitable ratio of axial compression stress using tendons.

关 键 词：预应力 扣压穿合式砌体 水平低周反复荷载试验 抗剪承载力 延性 

分 类 号：TU378[建筑科学—结构工程]