菱型宽体挂篮空间有限元结构分析  

Analysis of Spatial Element for Rhombic Broad Suspended Basket

作　　者：周新平[1,2] 宗雪梅[3,2] 

机构地区：[1]中交第一公路勘察设计研究院,西安710068 [2]长安大学桥梁与隧道陕西省重点实验室,西安710064 [3]西安市市政设计研究院,710068

出　　处：《特种结构》2008年第5期72-75,共4页Special Structures

摘　　要：本文根据菱形宽体挂篮的构造特征和受力特点,分别建立其纵梁、底篮前横梁及吊杆、底篮后横梁及吊杆等有限元模型并进行受力分析;对其主要受力部分主桁架及上中横梁建立了空间有限元模型,进行了静力和非线性屈曲分析。通过对计算结果的分析表明,本文研究的菱形宽体挂篮强度、刚度及稳定性均满足要求,可赋予工程应用,本文的研究方法也可为工程技术人员提供参考。Finite element models of longitudinal beam, fore cross beam of bottom basket and hanging rod, rear cross beam of bottom basket and hanging rod and etc. were constructed based on the structural characteristic and bearing property of rhombic broad suspended basket. Spatial finite element models for the main truss and up-mid cross beam were also built up and the static force and nonlinear buckling were analyzed. The result reveals that the strength rigidity and stability of the rhombic broad suspended basket all can satisfy the requirements of regime. It can be put into use in engineering. And the method of research in this paper can also be referenced by engineers and technicians.

关 键 词：菱型宽体挂篮主桁架及上中横梁 空间有限元模型 非线性屈曲 

分 类 号：U445.3[建筑科学—桥梁与隧道工程]