Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel-UHPC combined bridge structure and construction method thereof
The invention provides a steel-UHPC combined bridge structure. The steel-UHPC combined bridge structure comprises a steel beam structure and a UHPC bridge deck arranged at the top end of the steel beam structure. A plurality of GFRP strip-shaped plates are arranged at the bottom of the UHPC bridge deck slab in the transverse direction of the bridge at intervals, and the GFRP strip-shaped plates are fixedly connected with the top end of the steel beam structure through U-shaped bolt structures; a U-shaped shearing force connecting piece is arranged in the UHPC bridge deck slab in the longitudinal direction of the bridge, and the bottom end of the U-shaped shearing force connecting piece is fixedly connected with the top end of the steel beam structure; a cementing layer is arranged on the top surface of the GFRP strip-shaped plate, and a gravel layer is laid on the cementing layer; bridge deck slab structural steel bars are arranged above the GFRP strip-shaped plates, and a filling area between the bottom face and the top face of the UHPC bridge deck slab is filled with UHPC. The self weight of the combined bridge structure is reduced, the span of the combined bridge structure is increased, the steel consumption and the welding workload of the combined bridge structure are reduced, the welding fatigue risk of the combined bridge structure is reduced, and the anti-cracking performance of concrete in the hogging moment area of the combined bridge structure is improved.
本发明提供了一种钢‑UHPC组合桥梁结构，其包括钢梁结构和设于钢梁结构顶端上的UHPC桥面板；所述UHPC桥面板的底部沿桥梁横向间隔设有多根GFRP条形板，所述GFRP条形板均通过U型螺栓结构与所述钢梁结构的顶端固定连接；所述UHPC桥面板的内部沿桥梁纵向设有U型剪力连接件，所述U型剪力连接件的底端与所述钢梁结构的顶端固定连接；所述GFRP条形板的顶面上设有胶结层，所述胶结层上铺设有碎石层；所述多根GFRP条形板的上方设有桥面板结构钢筋，所述UHPC桥面板底面与顶面之间的填充区内填充有UHPC。本发明减轻了组合桥梁结构自重，增大了其跨径，减少了其耗钢量和焊接工作量、降低了其焊接疲劳的风险以及提高了其负弯矩区混凝土的抗裂性能。
Steel-UHPC combined bridge structure and construction method thereof
The invention provides a steel-UHPC combined bridge structure. The steel-UHPC combined bridge structure comprises a steel beam structure and a UHPC bridge deck arranged at the top end of the steel beam structure. A plurality of GFRP strip-shaped plates are arranged at the bottom of the UHPC bridge deck slab in the transverse direction of the bridge at intervals, and the GFRP strip-shaped plates are fixedly connected with the top end of the steel beam structure through U-shaped bolt structures; a U-shaped shearing force connecting piece is arranged in the UHPC bridge deck slab in the longitudinal direction of the bridge, and the bottom end of the U-shaped shearing force connecting piece is fixedly connected with the top end of the steel beam structure; a cementing layer is arranged on the top surface of the GFRP strip-shaped plate, and a gravel layer is laid on the cementing layer; bridge deck slab structural steel bars are arranged above the GFRP strip-shaped plates, and a filling area between the bottom face and the top face of the UHPC bridge deck slab is filled with UHPC. The self weight of the combined bridge structure is reduced, the span of the combined bridge structure is increased, the steel consumption and the welding workload of the combined bridge structure are reduced, the welding fatigue risk of the combined bridge structure is reduced, and the anti-cracking performance of concrete in the hogging moment area of the combined bridge structure is improved.
本发明提供了一种钢‑UHPC组合桥梁结构，其包括钢梁结构和设于钢梁结构顶端上的UHPC桥面板；所述UHPC桥面板的底部沿桥梁横向间隔设有多根GFRP条形板，所述GFRP条形板均通过U型螺栓结构与所述钢梁结构的顶端固定连接；所述UHPC桥面板的内部沿桥梁纵向设有U型剪力连接件，所述U型剪力连接件的底端与所述钢梁结构的顶端固定连接；所述GFRP条形板的顶面上设有胶结层，所述胶结层上铺设有碎石层；所述多根GFRP条形板的上方设有桥面板结构钢筋，所述UHPC桥面板底面与顶面之间的填充区内填充有UHPC。本发明减轻了组合桥梁结构自重，增大了其跨径，减少了其耗钢量和焊接工作量、降低了其焊接疲劳的风险以及提高了其负弯矩区混凝土的抗裂性能。
Steel-UHPC combined bridge structure and construction method thereof
一种钢-UHPC组合桥梁结构及其施工方法
ZENG DAN (Autor:in) / CAO LEI (Autor:in) / LUO YUAN (Autor:in) / ZHANG HAIPING (Autor:in) / CHEN FANGHUAI (Autor:in)
30.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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