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A platform for research: civil engineering, architecture and urbanism
Hollow slab girder bridge hinge joint maintaining and reinforcing structure and construction method
The invention discloses a hollow slab girder bridge hinge joint maintaining and reinforcing structure and a construction method. The appearance of the cross section of each hollow slab girder is in an inverted-T shape, and the side face of the upper portion of each hollow slab girder is in transition with the side face of the corresponding other part through an inclined face; the side faces of every two adjacent hollow slab beams are connected to form a joint groove. A concrete pavement is arranged on each hollow slab beam; the two pavement layer steel bars of the concrete pavement form a whole and stretch across the joint groove above the joint groove; the joint groove, the position between the two concrete pavements and the upper faces of the two concrete pavements are filled with ultra-high performance concrete UHPC to form reinforcing planes. And a wear-resistant layer is laid on the reinforcing plane. During construction, the wear-resistant layer is removed firstly, then high-pressure water jet is adopted to break and remove the original integrated concrete pavement at the position of the joint groove, then ultra-high performance concrete UHPC is poured to form a reinforced plane, and the wear-resistant layer is laid. The damage to the plate girder is smaller, the construction is more convenient and faster, and the influence on the environment is smaller.
本发明公开了空心板梁桥铰缝维修加固结构及施工方法，每一空心板梁的横截面的外形均呈“凸”字形，上部的侧面与相应的其余部分的侧面之间均通过一个倾斜面过渡；两相邻的空心板梁侧面相接形成接缝槽；每一空心板梁的上面均设有混凝土铺装；两个混凝土铺装的铺装层钢筋为一整体，在接缝槽的上方横跨接缝槽；接缝槽内、两混凝土铺装之间，以及两个混凝土铺装的上面均填充超高性能混凝土UHPC形成加固平面；加固平面上铺设有一层耐磨层。施工时，先去除耐磨层，再采用高压水射流在接缝槽位置破除原有的一体式的混凝土铺装，然后浇筑超高性能混凝土UHPC形成加固平面，并铺设耐磨层。本发明对板梁损伤更小，施工更便捷快速，对环境影响更小。
Hollow slab girder bridge hinge joint maintaining and reinforcing structure and construction method
The invention discloses a hollow slab girder bridge hinge joint maintaining and reinforcing structure and a construction method. The appearance of the cross section of each hollow slab girder is in an inverted-T shape, and the side face of the upper portion of each hollow slab girder is in transition with the side face of the corresponding other part through an inclined face; the side faces of every two adjacent hollow slab beams are connected to form a joint groove. A concrete pavement is arranged on each hollow slab beam; the two pavement layer steel bars of the concrete pavement form a whole and stretch across the joint groove above the joint groove; the joint groove, the position between the two concrete pavements and the upper faces of the two concrete pavements are filled with ultra-high performance concrete UHPC to form reinforcing planes. And a wear-resistant layer is laid on the reinforcing plane. During construction, the wear-resistant layer is removed firstly, then high-pressure water jet is adopted to break and remove the original integrated concrete pavement at the position of the joint groove, then ultra-high performance concrete UHPC is poured to form a reinforced plane, and the wear-resistant layer is laid. The damage to the plate girder is smaller, the construction is more convenient and faster, and the influence on the environment is smaller.
本发明公开了空心板梁桥铰缝维修加固结构及施工方法，每一空心板梁的横截面的外形均呈“凸”字形，上部的侧面与相应的其余部分的侧面之间均通过一个倾斜面过渡；两相邻的空心板梁侧面相接形成接缝槽；每一空心板梁的上面均设有混凝土铺装；两个混凝土铺装的铺装层钢筋为一整体，在接缝槽的上方横跨接缝槽；接缝槽内、两混凝土铺装之间，以及两个混凝土铺装的上面均填充超高性能混凝土UHPC形成加固平面；加固平面上铺设有一层耐磨层。施工时，先去除耐磨层，再采用高压水射流在接缝槽位置破除原有的一体式的混凝土铺装，然后浇筑超高性能混凝土UHPC形成加固平面，并铺设耐磨层。本发明对板梁损伤更小，施工更便捷快速，对环境影响更小。
Hollow slab girder bridge hinge joint maintaining and reinforcing structure and construction method
空心板梁桥铰缝维修加固结构及施工方法
ZHOU XIAOYU (author) / YAN XINGFEI (author) / ZHOU LIANG (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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