A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Main girder structure of double-layer four-line railway steel truss girder cable-stayed bridge
The invention relates to a double-layer four-line railway steel truss girder cable-stayed bridge girder structure which is characterized in that through double-layer arrangement, two railways are arranged on each layer, the transverse span of a steel truss girder can be reduced, only main trusses on the two sides are needed, and transverse braces are connected between the tops of two corresponding web members of the main trusses on the two sides; the upper bridge deck system can be stably supported through the main trusses on the two sides and the top transverse bracings; the first bridge deck system and the third bridge deck system corresponding to the non-ballasting sections of the midspan and the side span of the bridge adopt orthogonal special-shaped plates, and the second bridge deck system and/or the fourth bridge deck system corresponding to the ballasting sections of the side span of the bridge adopt a combined section form of a steel box, a ballasting body in the steel box and a steel bridge deck slab, so that the ballasting problem of a ballasting area is solved; therefore, the upper layer and the lower layer can be equally provided with railway lines, the truss width of the steel truss girder can be reduced, the section of the steel truss girder is fully utilized, the steel consumption is greatly reduced, and the difficulty of defibering engineering on two banks of a bridge is reduced.
本发明涉及一种双层四线铁路钢桁梁斜拉桥主梁构造，通过双层布置，每层设置两条铁路，能够减小钢桁梁的横向跨度，使得仅仅需要两侧主桁，且通过在两侧主桁的对应两个腹杆顶部之间均连接有横联，使得能够通过两侧主桁以及顶部横联将上桥面系稳定的支撑住；且对应桥梁的中跨及边跨的非压重段的第一桥面系和第三桥面系采用正交异形板，对应桥梁的边跨的压重段的第二桥面系和/或第四桥面系采用钢箱、钢箱内的压重体和钢桥面板的组合截面形式，解决了压重区的压重难题；进而使得上下两层能够均分设置铁路线，能够降低钢桁梁的桁宽，充分利用了钢桁梁断面，大大减少用钢量，且降低桥梁两岸的疏解工程的难度。
Main girder structure of double-layer four-line railway steel truss girder cable-stayed bridge
The invention relates to a double-layer four-line railway steel truss girder cable-stayed bridge girder structure which is characterized in that through double-layer arrangement, two railways are arranged on each layer, the transverse span of a steel truss girder can be reduced, only main trusses on the two sides are needed, and transverse braces are connected between the tops of two corresponding web members of the main trusses on the two sides; the upper bridge deck system can be stably supported through the main trusses on the two sides and the top transverse bracings; the first bridge deck system and the third bridge deck system corresponding to the non-ballasting sections of the midspan and the side span of the bridge adopt orthogonal special-shaped plates, and the second bridge deck system and/or the fourth bridge deck system corresponding to the ballasting sections of the side span of the bridge adopt a combined section form of a steel box, a ballasting body in the steel box and a steel bridge deck slab, so that the ballasting problem of a ballasting area is solved; therefore, the upper layer and the lower layer can be equally provided with railway lines, the truss width of the steel truss girder can be reduced, the section of the steel truss girder is fully utilized, the steel consumption is greatly reduced, and the difficulty of defibering engineering on two banks of a bridge is reduced.
本发明涉及一种双层四线铁路钢桁梁斜拉桥主梁构造，通过双层布置，每层设置两条铁路，能够减小钢桁梁的横向跨度，使得仅仅需要两侧主桁，且通过在两侧主桁的对应两个腹杆顶部之间均连接有横联，使得能够通过两侧主桁以及顶部横联将上桥面系稳定的支撑住；且对应桥梁的中跨及边跨的非压重段的第一桥面系和第三桥面系采用正交异形板，对应桥梁的边跨的压重段的第二桥面系和/或第四桥面系采用钢箱、钢箱内的压重体和钢桥面板的组合截面形式，解决了压重区的压重难题；进而使得上下两层能够均分设置铁路线，能够降低钢桁梁的桁宽，充分利用了钢桁梁断面，大大减少用钢量，且降低桥梁两岸的疏解工程的难度。
Main girder structure of double-layer four-line railway steel truss girder cable-stayed bridge
一种双层四线铁路钢桁梁斜拉桥主梁构造
CHEN KEJIAN (author) / LIU WEI (author) / HU YUZHU (author) / WANG XU (author) / XU YONG (author) / QIN YU (author) / CHEN YUNZE (author) / CHEN BIN (author) / DU XICHUN (author) / ZENG ZHONG (author)
2023-01-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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