平面与空间钢框架结构的简化柱梁模型  

THE SIMPLIFIED COLUMN-BEAM MODEL FOR PLANAR AND SPACIAL STEEL FRAMES

作　　者：邵永松[1] 刘洪波[1] 谢礼立[1] 张耀春[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150001

出　　处：《工程力学》2004年第1期1-8,41,共9页Engineering Mechanics

摘　　要：根据钢框架结构的受力特点,提出了平面简化柱梁模型、双重体系简化柱梁模型和空间简化柱梁模型。它们不但能考虑结构的空间作用、材料非线性和几何非线性等因素影响,还能考虑钢框架结构梁柱的强度比和刚度比、节点域变形、柱附加轴力引起的弯曲变形、梁间塑性铰和双重体系间转角的不协调性对地震响应的影响。简化柱梁模型能够对高层平面钢框架结构和空间结构进行有效的简化,并进行了钢框架的二阶弹塑性动力分析。Based on the characteristics of steel frames, a new model, named as simplified column-beam model, is developed for the seismic response of planar steel frames, planar double systems and spacial steel frame structures. The model takes into account the strength and the stiffness ratio of the beam-to-column, the deformation of joint panel, additional axial force, plastic hinge in the middle of the beam, material nonlinearity and geometric nonlinearity and the incongruity of intersection angle between planar double systems. It simplifies the analysis of highrise planar steel frames, planar double systems and spacial structures effectively. It is also applicable to the second-order elastic-plastic dynamic analysis of steel frames.

关 键 词：钢框架 简化柱梁模型 二阶弹塑性动力分析 高层结构 

分 类 号：TU973.13[建筑科学—结构工程]