湖南益阳奥林匹克公园体育场顶篷钢结构加固设计

Reinforcement design of steel roof structure for Yiyang Olympic Park Stadium in Hunan

湖南益阳奥林匹克公园体育场结构因年久失修和2008年加固改造不合理,导致结构安全性已不满足现行规范要求,经检测判定不能继续使用。根据现行规范,综合考虑加固效果、施工方便以及节省造价等因素,提出了调整传力路径、增加水平支撑体系、包钢加强截面、修补焊缝等多种加固方法。经过对加固前后结构体系的计算分析对比,加固方案有效改善了结构传力体系,提高了结构承载能力,改善了结构的应力水平和变形。

Due to lack of maintenance and unreasonable reinforcement and reformation in 2008, the structural security of Yiyang Olympic Park Stadium in Hunan can not meet the normal service requirements of current design specifications. The stadium is no longer suitable for continuing operation according to the inspection report. Considering reinforcement effects, convenience construction and saving cost, several reinforcement methods were proposed according to the current design specifications, such as adjusting load transfer path, adding lateral supporting system, reinforcing tube section with steel slats, repairing welds, and so on. Through the comparison and analysis of calculation results of the structural system before and after reinforcement, it shows that the structural force transfer path, the bearing capacity of the structure and the stress level and deformation of the structure can be effectively improved by the reinforcement scheme.