Seismic Response And Optimization Analysis Of Heat-Energy Plant Workshop Bent Frame

As important electric power facilities and life-line engineering, heat-energy plant must have considerable anti-seismic performance. However, due to the restrictions of requirement of craftwork, the main configurations of workshop is complicated and the quality and rigidity is not even, space integrity is not enough, structural weak segments are inevitable, security saving is low. In addition, incidence of earthquake of China is high, in order to reduce the influence of seismic damage and keep performance of electric power facilities, researching of the anti-seismic performance and optimization analysis of heat-energy plant workshop bent frame is very necessary and important.This paper indicates the tri-rank form(sequence of turbine house and deoxidizing house, bunker house) and cross form( cross of turbine house and bunker house), researching the anti-seismic performance and optimization analysis of heat-energy plant workshop bent frame applying SAP2000 and ANSYS.First, according to the characters of main workshop structure this paper established the finite element analyze model, analyzing dynamic characters, unilateralism and bilateralism seismic influence response spectrum and time-histories, and construing the stress characters, deformation, stress transferring theory and make sure the weak segment. Second, based on the optimization analysis, staring form the concept analyze, this paper construing the merits and flaws of configurations of main workshop (tri-rank form and cross form), meanwhile, comparing the anti-seismic performances of different types of configuration, generalized the characters of anti-seismic performances of different types of configuration. Third, taking the optimized fortification intensity as designing parameter, the gross engineering cost and minimum losing expectation as determination function, and taking the response spectrum of 7 degree as restriction, analyze the optimization analysis of heat-energy plant workshop bent frame, making sure the optimized fortification intensity of each type, providing the new approach for improving the anti-seismic performances of heat-energy plant workshop bent frame. Finally, this paper providing the designing suggestions of heat-energy plant workshop bent frame, offering the reference for the designing of this structure.