Structural design and analysis of an irregular multi-storey long-distance bus station
The project of an irregular multi-story long-distance bus station mainly consists of long-distance passenger station,the first and last stops of buses,the transfer corridors and the platform canopies.The main structure of long-distance passenger station adopts the frame-shear wall structure+the roof with stringed beams.The transfer corridors adopt the bent structure with hinged top of single-row columns.The seismic performance-base design of the long-distance passenger station with many irregularities such as multiple rows of inclined columns,torsional irregularities,large openings in the floor slab,and concave-convex irregularities was mainly introduced,as well as the structural design of the roof stringed beams.The structural characteristics of the transfer corridor with steel box girder+reinforced concrete Y-shaped bifurcated columns was analyzed.The calculation of the effective section width of the steel box girder considering the shear lag effect and the influence of local stability under compression was dissected,as well as the design key points of Y-shaped bifurcated column and cross beams and bearings selection of the Y-shaped bifurcated columns piers.Analysis results show that reasonable structural design adopted ensure structural safety.