Study on Seismic Performance of Unit Thermal Power Main Plant Steel-Concrete Structure for 1000 MW in High Intensive Seismic Region

摘要

Build 1000 MW unit thermal power main plant by using steel structure system in high intensive seismic region at home and abroad. As steel structure system little lateral stiffness, need more project cost and maintenance cost. In order to find new structure system which is applicable to seismic performance of large capacity unit Thermal Power Main Plant in high intensive region, reasonable equipment layout, project cost and the maintenance cost lower than the steel structure, taking a 1000 MW unit thermal power main plant bridge as the research object, steel reinforced concrete frame-dispersed shear wall structure system is tested. (1/7 scale) model of three substructure of primary structure with pseudo-dynamic test and pseudo-static test is tested in seven working condition. The results show that the structure system can meet the needs of design in zone with the seismic fortification intensity 8, have better deformation property, the many defensive line of horizontal force resistant and can be used in the main power house of large capacity unit Thermal Power Plant.