某钢柱支撑的大跨网壳安全性鉴定分析

以某未提供设计文件的钢柱支撑大跨网壳的结构安全性鉴定为例,依据《钢结构现场检测技术标准》(GB/T50621-2010)和《建筑结构检测技术标准》(GB/T 50344-2004)对网壳构件抽样检测,同时参照《空间网格结构技术规程》(JGJ 7-2010)和《钢结构工程施工质量验收规范》(GB/T50205-2001)对构件进行鉴定,再根据现场实测数据,利用3D3S设计软件进行设计验算,综合现场检测情况和验算结果,对该网壳安全性进行鉴定分析,提出相关建议,以鉴定的全过程来明确无设计文件的网壳安全性鉴定分析要点,为类似结构的安全性鉴定提供参考。

In the case of the structure safety appraisal of the long-span reticulated shell supported by steel columns without design documents. Based on "Technical standard for in-site testing of steel structure"(GB/T 50621-2010) and "Technical standard for inspection of building structure"(GB/T50344-2004),Sampling and tests are carried out on the shell components. and identify the components referring to the "Code for acceptance of construction quality of steel structures"(GB 50205-2001) and "Technical specif ication for space frame structures"( JGJ 7-2010), then according to the measured data, use the 3D3S design software to design and check it, and review the results of comprehensive on-site detection, Appraisal analysis on the safety of the reticulated shell, and puts forward relevant Suggestions, In the whole process of appraisal to clear the points about the structure safety appraisal of the shell without design documents, and provide a reference for similar structure safety appraisal.