In order to research the influence of infilled wall to the steel frame performance of anti-ground deformation,the column-top-swing 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 frame-column-top-wing effectively.
