变截面框剪结构二阶效应分析的精细积分法  

Precise integration method in second-order analysis of variable cross-section frame-shear wall structures

作　　者：张华[1] 位翠霞[1] 黄鹂[1] 

机构地区：[1]河北科技大学建筑工程学院,河北石家庄050018

出　　处：《河北科技大学学报》2012年第4期351-354,共4页Journal of Hebei University of Science and Technology

基　　金：石家庄市科学研究与发展计划项目(11123511)

摘　　要：采用分段连续化方法,建立了变截面框架-剪力墙结构二阶效应分析的连续化计算模型。引入状态变量的概念,导出了对每段结构考虑二阶效应时的状态空间方程,用状态空间理论的方法求出了状态向量表达式,并结合结构的边界条件用精细积分法求出了初始状态向量,最终得到变截面框剪结构考虑二阶效应时各部分的变形和内力。文末给出了数值算例,并与其他算法的结果进行了比较。By using the piecewise continuum technique, a continuous computational model is developed for second-order analy- sis of variable cross-section frame-shear wall structure. By introducing the concept of state vectors, the state space equations of every segment in second-order analysis are derived, then the state vector expression can be calculated according to the state space theory, and the initial state vector can be obtained according to the boundary conditions of the structure by using the precise integration method. The displacements and internal forces of each member can be derived as well. The numerical example is shown and the result is compared with that of other methods.

关 键 词：框架-剪力墙结构 二阶效应 精细积分法 

分 类 号：TU311[建筑科学—结构工程]