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Hybrid continuous steel truss girder structure and mounting method thereof
The invention relates to a hybrid continuous steel truss girder structure and a mounting method thereof, and relates to the technical field of steel truss girders, the hybrid continuous steel truss girder structure comprises a web member and a lower chord member, the hybrid continuous steel truss girder structure comprises a steel-concrete lower chord section, and the steel-concrete lower chord section is located within a set length; the steel-concrete lower chord section comprises steel gusset plates, a profile steel truss and a concrete structure, and the steel gusset plates are arranged on lower chord nodes in pairs; the tops of the steel gusset plates are used for connecting web members, and the bottoms of the steel gusset plates protrude downwards relative to lower chords outside the steel-concrete lower chord sections; the profile steel truss is arranged in the longitudinal bridge direction and fixed between the multiple pairs of steel gusset plates in a penetrating mode, and the concrete structure surrounds the profile steel truss and the multiple pairs of steel gusset plates to be formed in a pouring mode. According to the hybrid continuous steel truss girder structure and the mounting method thereof, the problems that an existing scheme for eliminating side fulcrum negative reaction force of a conventional continuous steel truss girder bridge is poor in economical efficiency, low in ballasting efficiency and difficult to maintain after ballasting are solved, the cost can be reduced, and the problem that the girder end rotating rigidity of a railway continuous steel truss girder bridge is low can be solved.
本申请涉及一种混合式连续钢桁梁结构及其安装方法，涉及钢桁梁桥技术领域，包括腹杆和下弦杆，混合式连续钢桁梁结构包含钢混下弦段，钢混下弦段位于设定长度内；钢混下弦段包含钢节点板、型钢桁架和混凝土结构，钢节点板成对设置于下弦节点；钢节点板顶部用于连接腹杆，底部相对于钢混下弦段之外的下弦杆向下凸出；型钢桁架沿纵桥向设置，穿设固定于多对钢节点板之间，混凝土结构包围型钢桁架和多对钢节点板浇筑成型。本申请的混合式连续钢桁梁结构及其安装方法，解决常规连续钢桁梁桥消除边支点负反力的现有方案经济性差、压重效率低且压重后维养难的问题，还能够降低成本解决铁路连续钢桁梁桥的梁端转动刚度低的问题。
Hybrid continuous steel truss girder structure and mounting method thereof
The invention relates to a hybrid continuous steel truss girder structure and a mounting method thereof, and relates to the technical field of steel truss girders, the hybrid continuous steel truss girder structure comprises a web member and a lower chord member, the hybrid continuous steel truss girder structure comprises a steel-concrete lower chord section, and the steel-concrete lower chord section is located within a set length; the steel-concrete lower chord section comprises steel gusset plates, a profile steel truss and a concrete structure, and the steel gusset plates are arranged on lower chord nodes in pairs; the tops of the steel gusset plates are used for connecting web members, and the bottoms of the steel gusset plates protrude downwards relative to lower chords outside the steel-concrete lower chord sections; the profile steel truss is arranged in the longitudinal bridge direction and fixed between the multiple pairs of steel gusset plates in a penetrating mode, and the concrete structure surrounds the profile steel truss and the multiple pairs of steel gusset plates to be formed in a pouring mode. According to the hybrid continuous steel truss girder structure and the mounting method thereof, the problems that an existing scheme for eliminating side fulcrum negative reaction force of a conventional continuous steel truss girder bridge is poor in economical efficiency, low in ballasting efficiency and difficult to maintain after ballasting are solved, the cost can be reduced, and the problem that the girder end rotating rigidity of a railway continuous steel truss girder bridge is low can be solved.
本申请涉及一种混合式连续钢桁梁结构及其安装方法，涉及钢桁梁桥技术领域，包括腹杆和下弦杆，混合式连续钢桁梁结构包含钢混下弦段，钢混下弦段位于设定长度内；钢混下弦段包含钢节点板、型钢桁架和混凝土结构，钢节点板成对设置于下弦节点；钢节点板顶部用于连接腹杆，底部相对于钢混下弦段之外的下弦杆向下凸出；型钢桁架沿纵桥向设置，穿设固定于多对钢节点板之间，混凝土结构包围型钢桁架和多对钢节点板浇筑成型。本申请的混合式连续钢桁梁结构及其安装方法，解决常规连续钢桁梁桥消除边支点负反力的现有方案经济性差、压重效率低且压重后维养难的问题，还能够降低成本解决铁路连续钢桁梁桥的梁端转动刚度低的问题。
Hybrid continuous steel truss girder structure and mounting method thereof
一种混合式连续钢桁梁结构及其安装方法
PENG ZHENHUA (author) / LI SHAOJUN (author) / ZHENG QINGGANG (author) / ZHOU YINDONG (author) / LI QI (author) / DENG WEN (author) / DU XUN (author)
2024-06-11
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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