2017年9月下 施工技术 第46卷第18期 CONSTRUCTION TECHNOLOGY 35 D0I:10.7672/5j52017180035 大型钢结构球形支座力学性能试验研究 娄峰12，潘文智1，石开荣1，吕俊锋 (1.华南理工大学土木与交通学院，广东广州510641； 2.浙江精工钢结构集团有限公司，浙江绍兴312030) [摘要]广州报业文化中心连廊为钢桁架结构，采用大吨位球形支座，包括固定铰支座和单向滑动支座.在不同荷 载组合作用下，支座处于压转、压剪及轴压等复杂受力状态，需对支座在各种受力状态下的变形及转动力矩等进行 检验，以评定其受力性能是否满足要求.以较高承载力的固定铰支座为例，进行力学性能试验研究，包括：受压状 态下的支座转动性能试验（压转）、水平承载力试验（压剪）和竖向承载力试验（轴压）等.试验结果表明：支座实测 转动力矩小于规范规定的转动力矩，支座水平位移与水平荷载、竖向压缩变形与竖向荷载、盆环径向变形与竖向荷 载之间基本呈线性关系，转动性能、水平承载力、竖向承载力均满足规范和设计要求，且试验完成后支座变形能基 本恢复. [关键词]钢结构；桁架；球形支座；力学性能；试验 [中图分类号]TU317 [文献标识码]A [文章编号]1002-8498(2017)18-0035-04 Experimental Study on Mechanical Properties of Spherical Bearings for Large Steel Structure LOU PAN Wenzhi' SHI Kairong' LU Junfeng' (1.School of Civil Engineering and Transportation South China University of Technology Guangzhou Guangdong 510641 China;2.Zhejiang Jinggong Steel Building Group Co.Ltd.Shaoxing Zhejiang 312030 China) Abstract:The joint gallery of Guangzhou Daily Group Culture Center which is posed of steel truss structure is supported by super spherical bearings including fixed and uniaxial sliding bearings.Since the bearings are in plex forced states under various load bination it is necessary to test the deformation and rotational moment of the bearings under different conditions and evaluate whether the mechanical properties are satisfactory.Taking the fixed bearing with higher capacity for example experimental study on mechanical properties are carried on in the aspects of rotation capacity test ...
大型钢结构球形支座力学性能试验研究.pdf
