三层正放四角锥预应力网架稳定性分析  

STABILITY ANALYSIS OF THREE-LAYER ORTHOGONAL QUADRANGULAR CONE PRESTRESSED GRID STRUCTURES

作　　者：高福聚[1] 徐敬 宋昱豪 尹宏志 GAO Fuju;XU Jing;SONG Yuhao;YIN Hongzhi(Department of Civil Engineering,China University of Petroleum,Shandong Qingdao 266580,China;Sinopec Changling Refining&Chemical Company,Hunan Yueyang 414012,China)

机构地区：[1]中国石油大学(华东)土木工程系,山东青岛266580 [2]中国石油化工股份有限公司长岭分公司,湖南岳阳414012

出　　处：《低温建筑技术》2024年第2期79-82,90,共5页Low Temperature Architecture Technology

摘　　要：网架以其优良的工程性能成为大跨度结构的首选结构类型之一。为改善传统网架结构在大跨度条件下变形大、用钢量大的缺陷,文中通过对网架施加预应力的方式,达到增强结构整体刚度和承载能力的目的。预应力的施加必然会对网架的稳定性能造成影响,其中支承形式对网架结构的稳定性影响较大。并通过对网架施加不同预应力后进行稳定性分析,得到不同预应力布索方式对网架稳定性影响,为网架的实际工程建设提供参考。Grid structures become one of the preferred structural types for long-span structures due to its excellent engineering performance.In order to improve the defects of large deformation and large amount of steel consumption of traditional grid structure under the condition of large span,the purpose of enhancing the overall stiffness and bearing capacity of the structure is achieved by applying prestress to the grid structures.The application of prestress inevitably affects the stability performance of the grid,and the supporting form has a great influence on the stability of the grid structures.Through the stability analysis of the grid after applying different prestresses,the influence of different prestressed cable methods on the stability of the grid is obtained,providing the reference for the actual engineering construction of the grid.

关 键 词：下弦多点支承 三层正放四角锥网架 网架稳定性分析 

分 类 号：TU356[建筑科学—结构工程]