某食堂钢结构网架鉴定与分析

Appraisal and analysis of steel grid frame in the canteen

通过对某电厂职工食堂网架结构的现场调查检测,发现该网架结构的螺栓球、支撑、支座等构件均存在多处安全问题,依据实际检测数据和施工图纸,运用有限元软件SAP2000建立了整体结构分析模型并进行了结构承载力验算,对网架结构的可靠性进行了可靠性鉴定与评级,并结合存在的问题提出相应的处理建议。最后,对国内网架结构的设计、施工以及检测工作提出了建议,可为其他类似工程提供参考。

Through on-the-spot evaluation of a power plant steel grid structure,security problems in several parts were discovered,such as bolt-sphere joints,support,bearing component part. Based on the actual testing data and construction drawings,the finite element analysis for whole structure was simulated by the finite element software SAP2000,and structure bearing capacity calculation was carried. The reliability of grid structure was appraised and rated,and corresponding proposals to solve the problems of the structure have been given. Finally,the grid structure design,construction and testing work are proposed,which may be a reference for other similar projects.