【摘要】 为研究填充墙体对钢框架抗地表变形性能的影响,针对开放式、封闭式和内嵌墙板3类钢框架,分别进行地表不均匀沉降作用的物理试验,对柱顶侧移、梁柱应变等响应规律展开分析研究,得出底梁和内嵌墙板对框架性能的影响规律及内嵌墙板-底梁-钢框架的协同工作性能。结果表明:开放式框架构件变形最大,封闭式框架次之,内嵌墙板框架最小,而框架整体倾斜变形的顺序则恰好相反;框架梁柱构件各部位变形对柱顶侧移贡献大小顺序为柱底>柱顶>梁边柱端>梁中柱端>梁跨中;框架柱底增设底梁,能一定程度地减小框架构件变形量,但同时其框架整体倾斜变形增大,并不能有效降低框架柱顶侧移的增大速率;内嵌墙板能较大幅度改变框架梁柱内力分布,并有效降低框架柱顶侧移的增大速率。更多还原

【Abstract】 In order to research the influence of infilled wall to the steel frame performance of anti-ground deformation,the column-topswing and beam-column-strain were analyzed via the physical experiment for three types of frame( open-frame,close-frame and wallboard-infilled-frame) under differential settling. The effection of frame performance by sill beam and infilled wallboard,furthermore,the cooperation of infilled wallboard-sill beam-steel frame were analyzed. The results showed that the member distortion of open-frame was maximum,close-frame took second place,and the member distortion of wallboard-infilled-frame was minimal,by contrast,the measure sequence of integral-incline of the frames was just reverse. The measure sequence caused the column-top-swing by different position of beam-column members was column base > column top > girder side-column-end > girder middle-column-end > girder midspan. The sill beam added to the bottom of frame-column could decrease amount of deformation of framing members,but the integral-incline of the frames increased at the same time,therefor the sill beam could not reduce the gathering speed of frame-column-top-swing. The infilled wallboard could modify the distribution of internal force on frame girder and column obviously and reduce the gathering speed of framecolumn-top-wing effectively.更多还原