The Capacity of Resisting Collapse of the Main Power Building Gable Nearby Nuclear Island
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Abstract
The main building of nuclear power station is a special kind of industrial structure with irregular in mass and stiffness. The capacity of resisting collapse of its gable can affect the safety of nuclear island nearby. The analysis and design should be arried on very carefully. Firstly, the seismic performance under SL-2 level earthquake of the main building of power station is studied through the Pushover analysis. Secondly, by dismantling the key component of the gable, the capacity of resisting collapse of the gable is evaluated.Results show that through reasonable design the gable can have larger redundancy to avoid collapse under earthquake and sudden loss of bearing capacity of its key component, and can ensure the safety of the nuclear island.
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