一种新型格构式刚架的介绍及其全过程分析  

INTRODUCTION AND THE WHOLE DEFORMING PATH ANALYSIS OF A NEW KIND OF LATTICED FRAME

作　　者：刘玉姝[1] 李国强[1] 张耀春[2] 

机构地区：[1]同济大学,上海200092 [2]哈尔滨工业大学,哈尔滨150090

出　　处：《钢结构》2002年第3期1-4,共4页Steel Construction

摘　　要：介绍一种截面为三角形的轻型空间格构式刚架体系及其受力特点。由于其突出屋面的上弦杆无支撑相连 ,该体系的平面外整体稳定方面的研究就成为一个刻不容缓的问题。基于用MATLAB软件编制的一个桁元几何非线性计算程序 ,对该种结构进行了全过程分析。为了验证该程序的可靠性 ,将其与SAP91中的非线性桁元程序APAK0H进行了对比 ,并和试验结果作了对比 ,吻合情况都很好。通过大量的计算机分析 ,对这种结构体系的平面外整体稳定承载力进行了研究 ,并得出一些实用结论。A new kind of light gauge space latticed frame of triangular section is introduced Because of the top chord protruding over the roof without any bracing,it is necessary to make some research on the out plane whole stability of this structure Based on the geometrically nonlinear elastic stability program of three dimensional truss element programmed with MATLAB language, the whole deforming path analysis of this kind of structure were performed here To prove its reliability and good performance,this program is compared with nonlinear truss element program block APAK0H in SAP91,and the computing results are compared with testing results They accord with each other very well Based on large quantities of computer analysis,research on the out plane whole stability of this structure has been done and some practical conclusions have been given

关 键 词：三角形截面 空间格构式刚架 稳定 全过程分析 

分 类 号：TU328[建筑科学—结构工程]