用机动法求解采用有限条模式的箱形梁内力影响面  

Mobile Method of Calculating Internal Force Influence Surface of Box Girder in Finite Strip Model

作　　者：刘天明[1] 刘殿忠[2] 杨艳敏[3] 

机构地区：[1]吉林省高等级公路建设指挥部，吉林 长春 130000 [2]吉林建筑工程学院，吉林 长春 130021 [3]吉林建筑工程学院，吉林 长春 130021

出　　处：《公路交通科技》2000年第z1期55-57,共3页Journal of Highway and Transportation Research and Development

摘　　要：用机动法求解采用有限条模式的箱形梁的内力影响面的方法是将有限条法的数值模型与广义机动法相结合 ,推导出了计算在竖向荷载作用下箱形梁结构上任一点的内力影响面的算法。该方法与结构力学中计算内力影响线的机动法相比 ,要简便得多 ,只需一次加载即可获得连续的影响面 ,易于在程序中实现 ,并且可适用于板壳及连续体。The mobile method of calculating the internal force influence surface of box girder in finite strip model is to combine the finite strip method with the broad sense mobile method,which can deduce the calculating method of the internal force surface of any point of box girder under vertical load.Comparing with the mobile method of calculating internal force influence line of the structural force,this method is much simpler,with only one time loading needed to get continuous influence surface.It is easy to be realized in the program and applicable to the plate-shells and the continuous mass.

关 键 词：机动法 有限条 影响面 

分 类 号：U4[交通运输工程—道路与铁道工程]