【作者】 岳增国； 金伟良； 姜金皋； 赵国兴； 余祖国； 严家熺； 吴承恩；

【Author】 YUE Zeng-guo;JIN Wei-liang;JINANG Jin-gao;ZHAO Guo-xing;YU Zu-guo;YAN Jia-xi;WU Chen-en;Institute of Structural Engineering,Zhejiang University;Architectural Design & Research Institute of Zhejiang University;Fourth Construction Company of Hangzhou;

【机构】 浙江大学； 杭州市第四建筑工程公司； 浙江大学建筑设计研究院； 杭州市墙体改革领导小组办公室；

【摘要】 框架砌体填充墙在干缩变形作用下容易产生裂缝,降低了结构的耐久性和适用性。本文首先建立了分离式有限元模型;然后利用该模型分析了灰缝抗拉强度对于框架填充墙开裂的影响。结果表明:灰缝的抗拉强度与柱边及墙体中部裂缝出现时的干缩率成正比;当裂缝出现后,裂缝宽度与干缩率成正比。因而可以通过提高砂浆等级来控制墙体裂缝。更多还原

【Abstract】 Cracking of infilled-frame under dry shrinkage deformation reduce durability and servicebility of infilled-frame.Firstly,discrete finite element model is established,the Effect of joint tensile strength on Cracking of Infilled-frame is analysis using the model.The result shows:The joint tensile strength is proportional to the shrinkage rate of wall when crack occurred in the middle of wall or column boundary surface.When cracks appear,the crack width is proportional to the shrinkage rate.Thus,the cracks in the wall can be controlled by increasing the mortar level.更多还原