The theater structure of Xi'an Consulate District Silk Road International Culture and Art Center is composed of reinforced concrete frame-shear wall main body and special-shaped space steel structure cover,which is a hybrid structure with complex shape,spacious interior,and large span etc.The main body structure has two irregularities:discontinuous floor slabs and local irregularities.The strengthening measures and seismic performance targets were proposed for irregular items and key issues.After calculation and analysis,identify the weak parts were identified and strengthened,and it was verified that the main body structure meets the requirements of the preset performance goals.Through multiple model comparison studies,it was found that the steel structure cover cannot be ignored for the main body structure.The vibration comfort calculation was carried out for large-span and long overhang areas floor,supplementary calculations for vertical seismic conditions were carried out for large-span conversion steel trusses,and force analysis was conducted on the floor under temperature and seismic conditions.The results show that the main body structure can meet the requirements of bearing capacity and normal service limit state.
theater structural designvibration comfort analysis of the floorseismic performance-based designvertical seismic actionPERFORM-3D