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A platform for research: civil engineering, architecture and urbanism
Short steel-concrete combined section structure of railway mixed box girder cable-stayed bridge girder and construction method of short steel-concrete combined section structure
The invention relates to the field of bridge engineering design and construction, and discloses a railway mixed box girder cable-stayed bridge girder short steel-concrete combined section structure which comprises a steel top plate, a steel bottom plate and a bearing plate, and the two sides of the bearing plate are provided with a steel-concrete combined section and a steel girder transition section respectively; a C-shaped perforated steel plate and a PBL perforated steel plate are arranged on one side of the steel-concrete combined section to support the bearing plate and reinforce connection with the steel top plate and the steel bottom plate, PBL steel bars penetrate through all the perforated steel plates, and the C-shaped perforated steel plate, the PBL perforated steel plate, the bearing plate, the steel top plate and the steel bottom plate are connected into a whole after concrete is poured, so that connection and force transmission of all components of the steel-concrete combined section are enhanced. The longitudinal length of the combination section is effectively shortened; a variable-height stiffening rib and a steel anchor chamber are arranged on one side of the steel beam transition section, so that the rigidity of the bearing plate is improved, and the thickness of the bearing plate is reduced; the longitudinal prestress reinforcing ribs are arranged, so that the stress performance and the anti-cracking capacity of the combination section are improved; holes are formed in the middle of the bearing plate and the concrete partition wall connected with the bearing plate, and the weight of the combination section is reduced.
本发明涉及桥梁工程设计与施工领域，公开了一种铁路混合箱梁斜拉桥主梁短钢混结合段结构，包括：钢顶板、钢底板、承压板，承压板两侧分别为钢混结合段与钢梁过渡段；钢混结合段一侧设有C形带孔钢板与PBL带孔钢板支撑承压板并加强与钢顶板、钢底板的连接，所有带孔钢板穿设PBL钢筋，在浇筑混凝土后将C形带孔钢板、PBL带孔钢板与承压板、钢顶板、钢底板连接为整体，增强钢混结合段各部件的连接与传力，并有效缩短了结合段的纵向长度；钢梁过渡段一侧设置有变高加劲肋、钢锚室，提高了承压板的刚度，减小了承压板的厚度；设置纵向预应力加强筋提升了结合段的受力性能与抗开裂能力；承压板及与之相连的混凝土隔墙中部开有孔洞，减轻了结合段的重量。
Short steel-concrete combined section structure of railway mixed box girder cable-stayed bridge girder and construction method of short steel-concrete combined section structure
The invention relates to the field of bridge engineering design and construction, and discloses a railway mixed box girder cable-stayed bridge girder short steel-concrete combined section structure which comprises a steel top plate, a steel bottom plate and a bearing plate, and the two sides of the bearing plate are provided with a steel-concrete combined section and a steel girder transition section respectively; a C-shaped perforated steel plate and a PBL perforated steel plate are arranged on one side of the steel-concrete combined section to support the bearing plate and reinforce connection with the steel top plate and the steel bottom plate, PBL steel bars penetrate through all the perforated steel plates, and the C-shaped perforated steel plate, the PBL perforated steel plate, the bearing plate, the steel top plate and the steel bottom plate are connected into a whole after concrete is poured, so that connection and force transmission of all components of the steel-concrete combined section are enhanced. The longitudinal length of the combination section is effectively shortened; a variable-height stiffening rib and a steel anchor chamber are arranged on one side of the steel beam transition section, so that the rigidity of the bearing plate is improved, and the thickness of the bearing plate is reduced; the longitudinal prestress reinforcing ribs are arranged, so that the stress performance and the anti-cracking capacity of the combination section are improved; holes are formed in the middle of the bearing plate and the concrete partition wall connected with the bearing plate, and the weight of the combination section is reduced.
本发明涉及桥梁工程设计与施工领域，公开了一种铁路混合箱梁斜拉桥主梁短钢混结合段结构，包括：钢顶板、钢底板、承压板，承压板两侧分别为钢混结合段与钢梁过渡段；钢混结合段一侧设有C形带孔钢板与PBL带孔钢板支撑承压板并加强与钢顶板、钢底板的连接，所有带孔钢板穿设PBL钢筋，在浇筑混凝土后将C形带孔钢板、PBL带孔钢板与承压板、钢顶板、钢底板连接为整体，增强钢混结合段各部件的连接与传力，并有效缩短了结合段的纵向长度；钢梁过渡段一侧设置有变高加劲肋、钢锚室，提高了承压板的刚度，减小了承压板的厚度；设置纵向预应力加强筋提升了结合段的受力性能与抗开裂能力；承压板及与之相连的混凝土隔墙中部开有孔洞，减轻了结合段的重量。
Short steel-concrete combined section structure of railway mixed box girder cable-stayed bridge girder and construction method of short steel-concrete combined section structure
一种铁路混合箱梁斜拉桥主梁短钢混结合段结构及其施工方法
HE ZHIMING (author) / HUANG PING (author) / WANG BING (author) / LI FANGKE (author) / SHI JUNWEI (author) / SHI ZHOU (author) / YU WEI (author) / LI YINGMING (author) / WANG DONGXU (author) / MING CHI (author)
2023-02-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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