A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-layer steel truss girder and arch shell cooperative system bridge and erection method
A bridge body comprises an upper-layer bridge deck, a lower-layer bridge deck, steel trusses and a steel arch shell, an opening is formed in the lower end of a shell body of the steel arch shell, and the two ends of the opening of the shell are connected with the front side edge and the rear side edge of the upper-layer bridge deck on side spans respectively. The two ends of the opening of the shell are connected with the front side edge and the rear side edge of the lower-layer bridge deck in the midspan respectively, and the upper-layer bridge deck and the steel truss girder are wrapped in the shell in the midspan. According to the invention, motor vehicles pass through the upper-layer bridge floor, the slow-moving system passes through the lower-layer bridge floor, and the motor vehicles and the slow-moving system are separated, so that the safety of the slow-moving system is ensured, the design elevation of the slow-moving system is reduced, and pedestrians and non-motor vehicles can pass conveniently; the steel truss girder and the steel arch shell form a cooperative system to jointly bear second-stage dead load and loads of automobiles, crowds, wind and the like in the operation period, the landscape arch shell structure is combined with the steel truss girder, the landscape performance of the bridge is improved, meanwhile, the steel arch shell participates in overall stress of the bridge, and the safety degree and economical efficiency of the overall structure are improved.
本发明公开了一种双层钢桁梁与拱壳协作体系桥梁及架设方法，桥梁主体包括上层桥面、下层桥面、钢桁梁和钢拱壳，钢拱壳的壳体下端开口，壳体的开口两端在边跨分别连接上层桥面的前后侧边沿，壳体的开口两端在中跨分别连接下层桥面的前后侧边沿，上层桥面和钢桁梁在中跨被包裹于壳体内。本发明上层桥面通行机动车，下层桥面通行慢行系统，将机动车与慢行系统分离，既保证了慢行系统的安全性，又降低了慢行系统设计高程，便于行人和非机动车通行；钢桁梁与钢拱壳形成协作体系共同承担二期恒载和汽车、人群、风等运营期荷载，将景观性拱壳结构与钢桁梁相结合，在提升桥梁景观性的同时，钢拱壳参与桥梁总体受力，提高了整体结构安全度和经济性。
Double-layer steel truss girder and arch shell cooperative system bridge and erection method
A bridge body comprises an upper-layer bridge deck, a lower-layer bridge deck, steel trusses and a steel arch shell, an opening is formed in the lower end of a shell body of the steel arch shell, and the two ends of the opening of the shell are connected with the front side edge and the rear side edge of the upper-layer bridge deck on side spans respectively. The two ends of the opening of the shell are connected with the front side edge and the rear side edge of the lower-layer bridge deck in the midspan respectively, and the upper-layer bridge deck and the steel truss girder are wrapped in the shell in the midspan. According to the invention, motor vehicles pass through the upper-layer bridge floor, the slow-moving system passes through the lower-layer bridge floor, and the motor vehicles and the slow-moving system are separated, so that the safety of the slow-moving system is ensured, the design elevation of the slow-moving system is reduced, and pedestrians and non-motor vehicles can pass conveniently; the steel truss girder and the steel arch shell form a cooperative system to jointly bear second-stage dead load and loads of automobiles, crowds, wind and the like in the operation period, the landscape arch shell structure is combined with the steel truss girder, the landscape performance of the bridge is improved, meanwhile, the steel arch shell participates in overall stress of the bridge, and the safety degree and economical efficiency of the overall structure are improved.
本发明公开了一种双层钢桁梁与拱壳协作体系桥梁及架设方法，桥梁主体包括上层桥面、下层桥面、钢桁梁和钢拱壳，钢拱壳的壳体下端开口，壳体的开口两端在边跨分别连接上层桥面的前后侧边沿，壳体的开口两端在中跨分别连接下层桥面的前后侧边沿，上层桥面和钢桁梁在中跨被包裹于壳体内。本发明上层桥面通行机动车，下层桥面通行慢行系统，将机动车与慢行系统分离，既保证了慢行系统的安全性，又降低了慢行系统设计高程，便于行人和非机动车通行；钢桁梁与钢拱壳形成协作体系共同承担二期恒载和汽车、人群、风等运营期荷载，将景观性拱壳结构与钢桁梁相结合，在提升桥梁景观性的同时，钢拱壳参与桥梁总体受力，提高了整体结构安全度和经济性。
Double-layer steel truss girder and arch shell cooperative system bridge and erection method
双层钢桁梁与拱壳协作体系桥梁及架设方法
JIANG YANG (author) / LI YANG (author) / HAN XU (author) / HE JIAN (author) / JIA YAKUN (author)
2023-04-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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