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针对水电站厂房楼板裂缝成因复杂性问题,采用有限元程序ANSYS对某电站厂房结构进行了静力计算,获得了厂房发电机层楼板混凝土构件应力和位移响应,并利用混凝土Willam and Warnke开裂准则,计算分析了厂房发电机层楼板的开裂。结果表明,厂房楼板裂缝主要分布于发电机机墩周围及梁与楼板交界区域,建议进行有针对性的限裂加固措施,以确保厂房后续运行过程中的安全。
Aiming at the complexity of floor cracks caused by hydropower station, the finite element program ANSYS is used to calculate the static and dynamic loads of the plant structure of a power plant. The stress and displacement response of concrete floor slabs are obtained. Based on Willam and Warnke crack criterion, The cracking of the generator floor of the generator floor was analyzed. The results show that the cracks in the factory floor are mainly distributed around the generator piers and at the boundary between the girder and the floor. It is suggested to carry out targeted crack reinforcement measures to ensure the safety of the factory during the subsequent operation.