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本文对一栋钢筋混凝土框架上部支承24个罐体的工业建筑在汶川地震中的破坏进行了调查,分析了维护墙体和罐体基座混凝土开裂的原因。对考虑罐体(设备和液体总重480t)和底部单层框架结构组成的复杂空间结构体系进行了地震作用分析,探讨了空罐和满罐情况下的地震反应特点。提出了该工程满足6度和7度抗震设防要求时的抗震加固建议。
In this paper, the destruction of an industrial building with 24 cans in the upper part of a reinforced concrete frame in Wenchuan earthquake was investigated. The reasons for the cracking of the concrete in the base of the wall and the tank were analyzed. Seismic response analysis of complex space structure system considering the tank (480t total weight of equipment and liquid) and the bottom single-story frame structure is carried out, and the seismic response characteristics under empty cans and full cans are discussed. Proposed the project to meet the seismic safety requirements of 6 degrees and 7 degrees earthquake reinforcement recommendations.