A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands and construction method of hollow slab bridge comprehensive reinforcing system
The invention relates to a hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands and a construction method of the hollow slab bridge comprehensive reinforcing system. The hollow slab bridge comprehensive reinforcing system comprises a plurality of hollow slabs, hinge joints are formed between the adjacent hollow slabs, a formwork body is assembled at the bottoms of the hollow slabs, a steel reinforcement framework assembly is mounted on the formwork body, a UHPC cast-in-place layer is poured in the formwork body, grouting pipes are inserted in the hinge joints, and the grouting pipes extend into the formwork body. The invention belongs to a comprehensive reinforcing system of a hollow slab, the bending resistance and bearing capacity of the hollow slab are improved through the good tensile property of the UHPC cast-in-place layer, and meanwhile, the transverse integrity of a hollow slab bridge is improved through the UHPC cast-in-place layer and transverse tensioning prestress.
本发明涉及一种基于UHPC与缓粘结钢绞线的空心板桥综合加固系统及其施工方法；包括若干空心板，相邻空心板之间形成有铰缝，空心板底部装配有模板，模板安装有钢筋骨架组件，模板内浇筑有UHPC现浇层，铰缝内插接有注浆管，注浆管伸入模板内；本发明属于空心板的综合加固系统，通过UHPC现浇层良好的抗拉性能提高空心板自身的抗弯承载能力，同时通过UHPC现浇层和横向张拉预应力提高空心板桥的横向整体性。
Hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands and construction method of hollow slab bridge comprehensive reinforcing system
The invention relates to a hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands and a construction method of the hollow slab bridge comprehensive reinforcing system. The hollow slab bridge comprehensive reinforcing system comprises a plurality of hollow slabs, hinge joints are formed between the adjacent hollow slabs, a formwork body is assembled at the bottoms of the hollow slabs, a steel reinforcement framework assembly is mounted on the formwork body, a UHPC cast-in-place layer is poured in the formwork body, grouting pipes are inserted in the hinge joints, and the grouting pipes extend into the formwork body. The invention belongs to a comprehensive reinforcing system of a hollow slab, the bending resistance and bearing capacity of the hollow slab are improved through the good tensile property of the UHPC cast-in-place layer, and meanwhile, the transverse integrity of a hollow slab bridge is improved through the UHPC cast-in-place layer and transverse tensioning prestress.
本发明涉及一种基于UHPC与缓粘结钢绞线的空心板桥综合加固系统及其施工方法；包括若干空心板，相邻空心板之间形成有铰缝，空心板底部装配有模板，模板安装有钢筋骨架组件，模板内浇筑有UHPC现浇层，铰缝内插接有注浆管，注浆管伸入模板内；本发明属于空心板的综合加固系统，通过UHPC现浇层良好的抗拉性能提高空心板自身的抗弯承载能力，同时通过UHPC现浇层和横向张拉预应力提高空心板桥的横向整体性。
Hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands and construction method of hollow slab bridge comprehensive reinforcing system
一种基于UHPC与缓粘结钢绞线的空心板桥综合加固系统及其施工方法
CHENG KUN (author) / DU YINGUANG (author) / LING ZHIHAN (author) / WU QIANGQIANG (author) / LIU ZHANG (author) / REN ZHIQIN (author) / HUANG KAOQU (author) / SUN HU (author) / XU WENYU (author) / HUANG YUEBIN (author)
2021-04-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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