偏压下配筋砌块墙体的非线性有限元分析  

Analysis of reinforced masonry walls with out of plane eccentric load by nonlinear element method

作　　者：翟希梅[1] 于芳[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《哈尔滨工业大学学报》2007年第8期1196-1200,1205,共6页Journal of Harbin Institute of Technology

基　　金：哈尔滨工业大学土木工程学院青年博士基金资助项目(090304)

摘　　要：应用ANSYS结构有限元分析软件,选择三维八节点的混凝土单元Solid65模拟灌芯砌块砌体、杆单元L ink8模拟钢筋,针对平面外竖向偏心荷载作用下的配筋混凝土砌块墙体进行了三维非线性有限元分析,研究了该类墙体的破坏形态、承载与变形能力,并将模拟结果与试验值进行了对比,验证了有限元分析方法的可行性.通过大量的参数化分析,研究了偏心距、纵筋配筋率、高厚比等因素对承载力的影响,为进一步建立和完善承载力的计算方法提供依据.Nonlinear FEM program ANSYS is adopted to simulate the reinforced masonry walls under out of plane eccentric compressive load. The 3D 8 nodes concrete element solid65 is adopted to simulate the masonties and button stems. The 3D spar element link8 is adopted to simulate the rebar. The failure mode, the bearing capacity and the deformation of the walls are studied. The simulated results have been compared with the test and the feasibility of FEM method is validated. Based on the parametric analysis, the effect of eccentricity, reinforced percentage, height -to -thickness ratio on the capacity has been studied to give the gist for the new method to obtain the capacity

关 键 词：配筋砌块墙体 平面外 承载力 有限元 

分 类 号：TU365[建筑科学—结构工程]