钢丝网砂浆加固土坯墙体抗震性能影响因素分析  

Seismic Performance Influencing Factors Analysis of Adobe Wall Strengthened with Ferrocement Mortar

作　　者：黄斌[1] 阿肯江.托呼提[1] 

机构地区：[1]新疆大学建筑工程学院,新疆乌鲁木齐830047

出　　处：《实验室研究与探索》2015年第4期25-29,33,共6页Research and Exploration In Laboratory

基　　金：新疆维吾尔自治区自然科学基金项目(2013211A009)

摘　　要：为研究钢丝网水泥砂浆加固土坯墙体抗震性能,考虑了墙体厚度、竖向荷载和开孔尺寸等多种因素复合作用下对加固墙体抗侧承载力与变形能力的影响程度。采用数理统计理论中的正交分析法并结合砌体二次均质化理论,对加固墙体进行弹塑性数值计算并分析其结果。研究表明:对于未开孔的加固墙体,竖向荷载和墙体厚度对墙体抗侧承载力和变形能力的贡献主次顺序为:竖向荷载>墙体厚度;对于开孔的加固墙体,各因素对墙体抗侧承载力和变形能力的贡献主次顺序为:竖向荷载>开孔尺寸>墙体厚度。由此表明竖向荷载是影响未开孔与开孔加固墙体的主导因素,在对土坯房屋进行加固改造设计时应合理设计屋(楼)面荷载。To study the seismic performance of reinforced adobe wall with ferrocement mortar, this paper considers the impact of the compound action of thickness of walls, the vertical loads and size of holes to the lateral capacity and deformability of reinforced wall. And it applies elastoplastic numerical calculation in reinforced wall, and analyzes the results by adopting the way of orthogonal analysis of mathematical statistics theory and the theory of masonry secondary- RVE. This study shows that for reinforced wall without holes, vertical loads makes greater contribution to the lateral capacity and deformability of reinforced wall than the thickness of walls; but for reinforced wall with holes, it is the vertical loads and is not the thickness of walls. The conclusion makes the greatest contribution to that of reinforced wall; what＇ s more, size of holes even contributes much more than that of the thickness of wall. It demonstrates that vertical load is the dominant factor of the reinforced walls, it should reasonably design roof （floor） loads for rebuilding and seismic rcinforcement of abode buildings.

关 键 词：加固土坯墙体 正交分析 二次均质化 抗震性能 钢丝网水泥砂浆 

分 类 号：TU352[建筑科学—结构工程] O241[理学—计算数学]