空间网格结构球形支座受力性能研究  

Research of Bearing Capacity with Ball Support in Spatial Grid Structures

作　　者：王林 WANG Lin(China MCC5 Group CORP.Ltd.,Chengdu 610023)

机构地区：[1]中国五冶集团有限公司,四川成都610023

出　　处：《福建建筑》2024年第10期34-37,共4页Fujian Architecture & Construction

摘　　要：在空间网格结构设计和施工中,支座节点的承载力在网架结构中起着关键性作用。采用ABAQUS分别比较三种类型球形支座在不同支承位置的受力性能。从支承位置看,边(角)支座和中支座的屈服承载力基本一致,中支座的极限承载力明显较高。从支座类型看,组合支座的屈服承载力和整体稳定性远高于其他两种类型的支座。同时,在中支座时,由于处于对称受力状态,半空心球支座屈服承载力高于空心球支座;而在角(边)支座时,则处于非对称受力状态,其屈服承载力较低。此外,半空心球支座和组合支座有利于支座的加工和施工,并且在一定程度上节约钢材、降低造价。The capacity of supports play a key role in structural design and construction of spatial grid structures.The article analysis stress performance of three different supports at different positions by ABAQUS.Compared with different positions of supports,the middle support has obviously higher ultimate-bearing capacity than corner and edge supports but the three position-supports have similar yield bearing capacity.The results show that yield-bearing capacity and global stability of combination-support are much higher than other two.Also,yield-bearing capacity of the half hollow-ball support is higher than that of the hollow-ball support at position with corner and edge because of symmetrical forces while the half hollow-ball support has loser yield-bearing capacity subjected to asymmetric forces of the middle support.In addition,the half hollow-ball and combination-support could be beneficial for process and construction,and costs can be reduced by saving steel.

关 键 词：空间网格结构 ABAQUS 球形支座 受力性能 

分 类 号：TU391[建筑科学—结构工程]