Research on Deformation-based Seismic Design of Conventional Island Main Plant
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Abstract
To ensure the safety of workers and protect the valuable equipment in conventional island main plant under the earthquake situation will not suffer a greater loss, seismic design requirements of conventional island main plant should adopt higher standards, the paper used the deformation-based seismic method. Aimed at the deformation characteristics of the conventional island main plant, proceed PUSHOVER analysis and dynamic time history analysis by the finite element software SAP2000 under small earthquake、moderate earthquake and severe earthquake.When modeling conventional island main plant whole structure by SAP 2000, set structure analysis coefficient and whole structure parameters, choose 3 actual seismic wave and 2 artificial seismic wave under the Code for seismic design of buildings requirement, then get the global story drift angle of conventional island main plant under the earthquake by PUSHOVER analysis and dynamic time history analysis.The result showed when the conventional island main plant whole structure under the force of small earthquake、moderate earthquake and severe earthquake, whether horizontal or vertical average of story drift angle is much smaller than pre set story drift angle limit, accord with the pre set deformation target.
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