已建砌体房屋低预应力度体外预应力砌体墙抗震加固研究  

Built masonry building low pretress degree prestressing masonry wall seismic strengthened research

作　　者：尹新生[1] 桑艳丽 徐蕾 

机构地区：[1]吉林建筑工程学院,吉林长春130021 [2]长春市房屋结构安全鉴定中心,吉林长春130041 [3]长春东电电力工程有限公司,吉林长春130021

出　　处：《土木工程学报》2010年第S1期458-461,共4页China Civil Engineering Journal

摘　　要：针对目前大量存在的已建砌体房屋需进行抗震加固的课题,论文提出了新的抗震加固方案,即在砌体墙上施加横向体外预应力,形成横向预应力砖砌体墙。推导出横向预应力砖砌体结构抗剪承载力计算公式,并对横向预应力砖砌体墙进行抗裂、抗剪性能的试验研究,对试验结果进行总结分析,并将试验结果与理论计算结果进行比较。Aimed at the problems that lots of built masonry buildings need seismic strengthening,a new seismic strengthening method is proposed,which appling transverse prestressing to the masonry wall,forming transverse prestressing brick masonry wall.The shear strength formula is derived,the transverse prestressing brick masonry wall's crack resistance and shear properties are tested,this paper make a simple summary and analysis of the experimental phenomenon,and compare the results between the experiment and theoretical calculation.

关 键 词：横向体外预应力 加固 抗裂性能 抗剪性能 

分 类 号：TU746.3[建筑科学—建筑技术科学]