摘要
为了研究下部支承刚度对索拱结构力学性能的影响,建立了跨度为60m,矢跨比分别为0.2,0.3,0.4的纯拱结构和索拱结构模型,采用支座刚度对下部支承的刚度进行等效处理。研究了五种不同支座水平刚度下索拱结构的强度、刚度和稳定性。结果表明,下部支承刚度对纯拱结构和索拱结构的强度和静力稳定性影响较小,但对其刚度有一定影响;该索拱结构在不同刚度的下部支承情况下力学性能良好。
In order to study the influence of substructure stiffness on cable arch structures,the arch and cable arch models with span of 60 m and rise-to-span ratios of 0. 2,0. 3,0. 4 were created,and support stiffness was equivalently taken to simulate the substructure stiffness. Five different support stiffness were adopt to study the strength,stiffness and stability of cable arch structure. The results show that the substructure stiffness has little influence on the strength and stability of arch and cable arch structures,but the has certain influence on the stiffness of arch and cable arch structures; the mechanical performance of cable arch structures with different stiffness are still good.
出处
《建筑结构》
CSCD
北大核心
2015年第2期7-9 46,46,共4页
Building Structure
基金
中国博士后科学基金(2014M551768)
山东省墙材革新与建筑节能科研开发项目
山东建筑大学校内博士基金(XNBS1208)
关键词
纯拱
索拱
预应力钢结构
支承刚度
arch
cable arch
prestressed steel structure
support stiffness
