Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Double-steel-plate combined bridge deck structure and construction method thereof
The invention discloses a double-steel-plate combined bridge deck slab structure and a construction method thereof, a double-steel-plate-concrete prefabricated bridge deck slab is a slab formed by pouring concrete in a steel plate frame, and the construction method comprises the steps that the double-steel-plate-concrete prefabricated bridge deck slab is hoisted to a steel main beam top plate, so that shear nails on the steel main beam top plate are located in shear nail grooves; temporarily fixing the double steel plate-concrete prefabricated bridge deck slab and the steel main beam; the prestressed steel beams are tensioned, and after tensioning is completed, epoxy resin mortar is injected into a gap between the double-steel-plate-concrete prefabricated bridge deck slab and the steel main beam top plate; a transverse wet joint between the double steel plate-concrete prefabricated bridge deck slabs is poured through micro-expansion concrete, so that the double steel plate-concrete prefabricated bridge deck slabs form a whole; and the shear nail grooves are poured, and construction is completed. The concrete prefabricated slab and the steel plate are combined, the tensile property and leakproofness of steel are fully achieved, the phenomenon that the prefabricated slab in the hogging moment area cracks due to adverse stress conditions is prevented, and the problem of diseases caused by cracking of the hogging moment area of the composite beam is solved.
本发明公开了一种双钢板组合桥面板结构及其施工方法，双钢板‑混凝土预制桥面板为钢板框架内浇筑混凝土的面板，施工方法为吊装双钢板‑混凝土预制桥面板至钢主梁顶板上，使钢主梁顶板上的剪力钉位于剪力钉槽内；对双钢板‑混凝土预制桥面板和钢主梁之间进行临时固定；张拉预应力钢束，完成张拉后，向双钢板‑混凝土预制桥面板和钢主梁顶板之间的空隙内注入环氧树脂砂浆；采用微膨胀混凝土浇筑双钢板‑混凝土预制桥面板之间的横向湿接缝，使其成为整体；浇筑剪力钉槽，完成施工。本发明通过将混凝土预制板与钢板相结合，充分钢材的抗拉特性及密闭性，防止负弯矩区预制板因不利受力条件出现开裂的现象，避免了组合梁负弯矩区因开裂引起的病害问题。
Double-steel-plate combined bridge deck structure and construction method thereof
The invention discloses a double-steel-plate combined bridge deck slab structure and a construction method thereof, a double-steel-plate-concrete prefabricated bridge deck slab is a slab formed by pouring concrete in a steel plate frame, and the construction method comprises the steps that the double-steel-plate-concrete prefabricated bridge deck slab is hoisted to a steel main beam top plate, so that shear nails on the steel main beam top plate are located in shear nail grooves; temporarily fixing the double steel plate-concrete prefabricated bridge deck slab and the steel main beam; the prestressed steel beams are tensioned, and after tensioning is completed, epoxy resin mortar is injected into a gap between the double-steel-plate-concrete prefabricated bridge deck slab and the steel main beam top plate; a transverse wet joint between the double steel plate-concrete prefabricated bridge deck slabs is poured through micro-expansion concrete, so that the double steel plate-concrete prefabricated bridge deck slabs form a whole; and the shear nail grooves are poured, and construction is completed. The concrete prefabricated slab and the steel plate are combined, the tensile property and leakproofness of steel are fully achieved, the phenomenon that the prefabricated slab in the hogging moment area cracks due to adverse stress conditions is prevented, and the problem of diseases caused by cracking of the hogging moment area of the composite beam is solved.
本发明公开了一种双钢板组合桥面板结构及其施工方法，双钢板‑混凝土预制桥面板为钢板框架内浇筑混凝土的面板，施工方法为吊装双钢板‑混凝土预制桥面板至钢主梁顶板上，使钢主梁顶板上的剪力钉位于剪力钉槽内；对双钢板‑混凝土预制桥面板和钢主梁之间进行临时固定；张拉预应力钢束，完成张拉后，向双钢板‑混凝土预制桥面板和钢主梁顶板之间的空隙内注入环氧树脂砂浆；采用微膨胀混凝土浇筑双钢板‑混凝土预制桥面板之间的横向湿接缝，使其成为整体；浇筑剪力钉槽，完成施工。本发明通过将混凝土预制板与钢板相结合，充分钢材的抗拉特性及密闭性，防止负弯矩区预制板因不利受力条件出现开裂的现象，避免了组合梁负弯矩区因开裂引起的病害问题。
Double-steel-plate combined bridge deck structure and construction method thereof
双钢板组合桥面板结构及其施工方法
LI CUIHUA (Autor:in) / CHEN FENGWEI (Autor:in)
24.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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