Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for cast-in-place bridge deck formwork of steel-concrete composite beam of overpass road
The invention discloses a construction method of a steel-concrete composite beam cast-in-place bridge deck formwork of an overpass road. The construction method comprises the following steps that S1, all formworks are made of film-covered bamboo plywood with the thickness being 15 mm; main keels at the positions of cross beams are Q235B double-square steel pipes of 4 * 6cm and are arranged in the longitudinal direction of the bridge, and the distance between the main keels and the steel pipes is 60cm; the secondary keels are 8 * 8 cm square timbers, the distance between every two secondary keels is 50 cm, and the secondary keels are arranged in the transverse bridge direction; double-spliced 12 # channel steel is arranged on the upper sides of D2 steel bars to serve as a cantilever main framework, the cantilever main framework is arranged in the transverse bridge direction, the distance between the cantilever main framework and the D2 steel bars is 100 cm, and the cantilever main framework is connected with a lower formwork body in an opposite-pulling mode through 12 mm split bolts. Before construction, D2 steel bars are welded to flange plates of the steel box girder to form an n-shaped supporting frame, the D2 steel bars are hot-rolled threaded steel bars and are connected with the positions, making contact with flanges, of the D2 steel bars in a full-length welding mode, the diameter of the steel bars is 28 mm, and the strength of the steel bars is HRB400. The construction period is short, the turnover speed is high, the cost is low, the ground under the bridge does not need to be occupied, and vehicles can pass under the bridge.
本发明公开了一种上跨道路的钢混叠合梁现浇桥面板模架施工方法，包括以下步骤：S1、模板均采用15mm厚覆膜竹胶板。横梁位置主龙骨为4*6cmQ235B双方钢管，纵桥向布置，间距60cm；次龙骨为8×8cm方木，间距50cm,横桥向布置；采用双拼12#槽钢置于D2钢筋上侧做悬挑主骨架，横桥向布置，间距100cm，通过12mm对拉螺栓与下部模板主体对拉连接。施工前焊接D2钢筋于钢箱梁翼缘板处，形成“几”型支撑架，D2钢筋采用热轧螺纹钢筋，与翼缘接触位置满焊连接，钢筋直径为28mm,强度为HRB400。本发明的施工周期短，周转速度快，成本低，且不必占用桥下地面，桥下可通行车辆。
Construction method for cast-in-place bridge deck formwork of steel-concrete composite beam of overpass road
The invention discloses a construction method of a steel-concrete composite beam cast-in-place bridge deck formwork of an overpass road. The construction method comprises the following steps that S1, all formworks are made of film-covered bamboo plywood with the thickness being 15 mm; main keels at the positions of cross beams are Q235B double-square steel pipes of 4 * 6cm and are arranged in the longitudinal direction of the bridge, and the distance between the main keels and the steel pipes is 60cm; the secondary keels are 8 * 8 cm square timbers, the distance between every two secondary keels is 50 cm, and the secondary keels are arranged in the transverse bridge direction; double-spliced 12 # channel steel is arranged on the upper sides of D2 steel bars to serve as a cantilever main framework, the cantilever main framework is arranged in the transverse bridge direction, the distance between the cantilever main framework and the D2 steel bars is 100 cm, and the cantilever main framework is connected with a lower formwork body in an opposite-pulling mode through 12 mm split bolts. Before construction, D2 steel bars are welded to flange plates of the steel box girder to form an n-shaped supporting frame, the D2 steel bars are hot-rolled threaded steel bars and are connected with the positions, making contact with flanges, of the D2 steel bars in a full-length welding mode, the diameter of the steel bars is 28 mm, and the strength of the steel bars is HRB400. The construction period is short, the turnover speed is high, the cost is low, the ground under the bridge does not need to be occupied, and vehicles can pass under the bridge.
本发明公开了一种上跨道路的钢混叠合梁现浇桥面板模架施工方法，包括以下步骤：S1、模板均采用15mm厚覆膜竹胶板。横梁位置主龙骨为4*6cmQ235B双方钢管，纵桥向布置，间距60cm；次龙骨为8×8cm方木，间距50cm,横桥向布置；采用双拼12#槽钢置于D2钢筋上侧做悬挑主骨架，横桥向布置，间距100cm，通过12mm对拉螺栓与下部模板主体对拉连接。施工前焊接D2钢筋于钢箱梁翼缘板处，形成“几”型支撑架，D2钢筋采用热轧螺纹钢筋，与翼缘接触位置满焊连接，钢筋直径为28mm,强度为HRB400。本发明的施工周期短，周转速度快，成本低，且不必占用桥下地面，桥下可通行车辆。
Construction method for cast-in-place bridge deck formwork of steel-concrete composite beam of overpass road
一种上跨道路的钢混叠合梁现浇桥面板模架施工方法
NI TIANCHAO (Autor:in) / LI SHENGFEI (Autor:in) / ZHAO JIANLIN (Autor:in) / HUO MINGFEI (Autor:in) / CUI JINGHAN (Autor:in) / WU HAISHENG (Autor:in)
10.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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