某体育场钢屋盖功能改造加固设计与施工模拟分析  

Reinforcement Design and Construction Simulation Analysis for the Functional Renovation of a Steel Stadium Roof

作　　者：赏莹莹 杨文君 吴国松 邢遵胜 张健滔 何晶芳 SHANG Yingying;YANG Wenjun;WU Guosong;XING Zunsheng;ZHANG Jiantao;HE Jingfang(Zhejiang Jinggong Steel Building Group Co.,Ltd.,Shaoxing 312030,China)

机构地区：[1]浙江精工钢结构集团有限公司,浙江绍兴312030

出　　处：《建筑钢结构进展》2024年第8期104-114,共11页Progress in Steel Building Structures

摘　　要：以某奥体中心体育场钢结构屋盖为研究对象,对其加固及施工方案进行了分析。首先进行模型反建,并对该屋盖在施加新增荷载后的内力及变形进行分析,明确了需要加固的杆件范围。在此基础上,采用有限元软件对结构开展精细化分析,确定了包含加强节点、杆件和结构的加固方案,有效地改善了结构的传力体系,提高了结构的承载能力并降低了结构在使用荷载下的应力和变形。针对钢屋盖的不同部位,分别通过预应力锚索、增大截面和设置刚性圆管等方式进行加固,保证结构安全且满足建筑要求。除此之外,还对该加固方案对应的施工过程进行了有限元模拟,可为实际施工提供参考。经省运会工程实践验证,本项目的加固方法简单有效。This paper takes the steel roof of an Olympic stadium as the research object,the reinforcement and construction scheme were investigated.Firstly,a computational model was established,the internal force and deformation of the roof after functional renovation were analyzed,and the members which needs to be reinforced were identified.Further,finite element analysis of the structure was carried out,and the reinforcement scheme including strengthening joints,rods and structure was determined.The force transfer system of the structure was improved effectively,the bearing capacity of the structure was increased and the stress and deformation of the structure under additional loads were reduced.A series of methods,including adopting prestressed anchor cable,enlarging cross-section and setting rigid round pipe were taken to strengthen the steel roof,which was aimed to ensure structural safety and building requirements.In addition,the construction process corresponding to the reinforcement scheme was simulated by using finite element method,to provide a reference for the construction.The engineering practice of the provincial sports games shows that the reinforcement methods of this project are simple and effective.

关 键 词：钢屋盖 有限元分析 施工模拟 承载能力 加固方案 

分 类 号：TU758.11[建筑科学—建筑技术科学]