体育馆屋顶空间网壳安全性鉴定分析

Safety Appraisal of a Gymnasium Roof Space Reticulated Shell

某体育馆屋顶空间网壳的部分杆件及节点、连接域发生锈蚀、涂镀层脱落,加固修缮完成后对其进行安全性鉴定。文中通过对该空间网壳的使用现状、结构布置、构件截面、构件强度、构件涂镀层厚度、空间网壳挠度测量及构件缺陷、损伤及过大变形等外观质量项目进行现场检测,并对现场检测数据进行分析计算,得出了该空间网壳地震作用下的安全性鉴定评级结果。

Some members, joints and connecting areas of the roof space reticulated shell of a gymnasium were rusted and the coating fell off,and their safety was evaluated after the reinforcement and repair. Through on-site inspection on the use status, structural layout, component section, component strength, component coating thickness, spatial shell deflection measurement, component defects, damage and excessive deformation and other appearance quality items of the spatial reticulated shell, and calculation and analysis on the basis of on-site inspection data, the safety appraisal and rating results of the spatial reticulated shell under seismic action are obtained, aiming to take the project as an example, This paper introduces the appraisal methods of such structural engineering projects.