摘要
Abstract
In the project of Shanghai-Nanjing Intercity Railway, 5 elevated stations are all "integrated building-bridge structure" systems. The bridge structure which acts as the force-bearing system and the force-transferring system, is always under the condition of very heavy loads caused by the station buildings. Spatial finite element analysis results show that; The pier bottoms of the elevated stations suffer huge bending moment and shear fore; bending-shear-torsion combination effects are very obvious in it shaped platform beams with reserved stair hole; transverse force is relatively unfavorable in ir shaped platform beam of 12 meters wide; local stresses in junction parts between steel and concrete are complex, involving the roof truss steel pipe column, steel canopy column and concrete pier, and the concrete platform beam. Through adding the ordinary reinforcing bars and the prestressed reinforcing bars, reducing the interval between the diaphragms, strengthening local concrete, setting shear studs and other measures, safety and reliability of "integrated building-bridge structure" systems are guaranteed.关键词
高架站/桥建合一/站台梁/应力分析/钢-混组合结构/桥墩/埋入式柱脚Key words
elevated station/ integrated building-bridge structure/ platform beams/ stress analysis/ steel-concrete composite structure/ pier/ embedded column base
分类
交通工程
