Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for widening and reinforcing flange plates of reinforced concrete box girder
The invention belongs to the technical field of existing bridge widening, and particularly relates to a method for widening and reinforcing flange plates of a reinforced concrete box girder. Comprising cantilever flange widening and web steel rib beam reinforcing; steel book clamps are installed on the edges of the flange plates to form a steel structure cantilever structure, upper steel plates and lower steel plates of the steel book clamps are attached to and parallel to the top faces and the bottom faces of the flange plates respectively, the upper steel plates and the lower steel plates are fixedly connected through bolts penetrating through the flange plates, the upper steel plates and the lower steel plates extend out in a cantilever mode relative to the flange plates, and the cantilever ends of the upper steel plates and the cantilever ends of the lower steel plates are connected in a closed mode; a plurality of steel book clamps are spliced in sequence along the length direction of the box girder; a bridge deck structure is paved on the top surface of the upper steel plate; reinforcing a web steel rib beam: anchoring the steel rib beam on the root of the flange plate and the web concrete through embedded steel bar anchor bolts, and forming integral stress with the box girder; the widening part of the bridge is of a steel structure, in the later maintenance stage, after deformation and damage occur, the disease part is cut, welded and repaired, traffic can be opened without maintenance, and maintenance is relatively easy, convenient and rapid.
本发明属于既有桥梁加宽技术领域，具体涉及一种钢筋混凝土箱梁翼缘板拼宽加固方法；包括悬臂翼缘加宽和腹板钢肋梁加固；悬臂翼缘加宽：翼缘板边沿安装钢书夹形成钢结构悬臂结构，钢书夹的上钢板和下钢板分别与翼缘板的顶面和底面贴合且平行，通过贯穿翼缘板的螺栓连接固定上、下钢板，上、下钢板相对翼缘板悬挑伸出，上、下钢板的悬挑端封闭连接，沿箱梁长向若干个钢书夹依次拼接；上钢板顶面铺装桥面结构；腹板钢肋梁加固：钢肋梁由植筋锚栓锚固于翼缘板根部和腹板混凝土上，与箱梁形成整体受力；桥梁拼宽部分为钢结构，后期维护阶段，发生变形损坏后对病害部位进行切割焊接修复即可，无需养护，便可开放交通，维修相对简便快捷。
Method for widening and reinforcing flange plates of reinforced concrete box girder
The invention belongs to the technical field of existing bridge widening, and particularly relates to a method for widening and reinforcing flange plates of a reinforced concrete box girder. Comprising cantilever flange widening and web steel rib beam reinforcing; steel book clamps are installed on the edges of the flange plates to form a steel structure cantilever structure, upper steel plates and lower steel plates of the steel book clamps are attached to and parallel to the top faces and the bottom faces of the flange plates respectively, the upper steel plates and the lower steel plates are fixedly connected through bolts penetrating through the flange plates, the upper steel plates and the lower steel plates extend out in a cantilever mode relative to the flange plates, and the cantilever ends of the upper steel plates and the cantilever ends of the lower steel plates are connected in a closed mode; a plurality of steel book clamps are spliced in sequence along the length direction of the box girder; a bridge deck structure is paved on the top surface of the upper steel plate; reinforcing a web steel rib beam: anchoring the steel rib beam on the root of the flange plate and the web concrete through embedded steel bar anchor bolts, and forming integral stress with the box girder; the widening part of the bridge is of a steel structure, in the later maintenance stage, after deformation and damage occur, the disease part is cut, welded and repaired, traffic can be opened without maintenance, and maintenance is relatively easy, convenient and rapid.
本发明属于既有桥梁加宽技术领域，具体涉及一种钢筋混凝土箱梁翼缘板拼宽加固方法；包括悬臂翼缘加宽和腹板钢肋梁加固；悬臂翼缘加宽：翼缘板边沿安装钢书夹形成钢结构悬臂结构，钢书夹的上钢板和下钢板分别与翼缘板的顶面和底面贴合且平行，通过贯穿翼缘板的螺栓连接固定上、下钢板，上、下钢板相对翼缘板悬挑伸出，上、下钢板的悬挑端封闭连接，沿箱梁长向若干个钢书夹依次拼接；上钢板顶面铺装桥面结构；腹板钢肋梁加固：钢肋梁由植筋锚栓锚固于翼缘板根部和腹板混凝土上，与箱梁形成整体受力；桥梁拼宽部分为钢结构，后期维护阶段，发生变形损坏后对病害部位进行切割焊接修复即可，无需养护，便可开放交通，维修相对简便快捷。
Method for widening and reinforcing flange plates of reinforced concrete box girder
钢筋混凝土箱梁翼缘板拼宽加固方法
TANG YUNHUI (Autor:in) / CHU LIH-LONG (Autor:in) / QI YINGSEN (Autor:in) / ZHAO YUNTAO (Autor:in) / MA ZEZHEN (Autor:in) / CHEN YU (Autor:in) / HE TAO (Autor:in)
18.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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