大跨径曲线钢箱梁空间体系分析

Analysis of spatial system of long-span curved steel box girder

以厦门翔安隧道进出口接线工程为依托,针对大跨径曲线段钢箱梁桥进行了设计研究,分析了简支体系、连续体系和固结体系桥梁的受力特点,从桥梁结构体系和支座间距两个纬度研究了钢结构桥梁的抗倾覆特性,研究了桥梁的抗震受力特点、配筋和支座水平承载力问题,对于类似工程有一定的应用参考价值。

Based on the Xiamen Xiang’an tunnel entrance and exit connection project,this paper has conducted design research on large span curved steel box girder bridges,analyzed the mechanical characteristics of simply supported,continuous and consolidated system bridges,the anti overturning characteristics of steel structure bridges were studied from the perspectives of bridge structural system and support spacing,studied the seismic acceptance characteristics,reinforcement,and horizontal bearing capacity of the bearings of the bridge,it provides certain application reference value for similar projects in the future.