Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method
A variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method comprises the steps of 10 transporting a plurality of components forming a bridge deck crane to a construction site; 20 sequentially assembling; 30drilling hoisting holes in the bridge deck; 40 setting cutting lines; 50 cutting beam sections along the cutting lines by adopting a rope saw; 60 controlling a winch to lower the beam sections, and commanding a beam transporting ship to bear and lower the beam sections; and 70 moving the bridge deck crane backwards to the next station until all the beam sections are dismantled. Compared with the prior art, the method has the following beneficial effects that the variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method is reasonable in design, and the dismantling efficiency is improved through component preassembly and field installation; the rope saw is adopted for static cutting and dismantling, the problems of vibration, noise, dust and other environmental pollution in the conventional dismantling construction process are solved, the cutting face is smooth, separation operation is facilitated, and continuous operation can be achieved.
一种变截面预应力连续箱梁桥面吊机吊装拆除方法，包括以下步骤：步骤10，将组成桥面吊机的若干构件运至施工现场；步骤20，依次组装；步骤30，在桥面上钻吊装孔；步骤40，设置切割线；步骤50，采用绳锯切割沿所述切割线切割梁段；步骤60，控制所述卷扬机进行梁段下放，指挥运梁船承接下放梁段；步骤70，后移所述桥面吊机至下一工位，直至完成所有梁段拆除。本发明具有如下有益效果：本发明变截面预应力连续箱梁桥面吊机吊装拆除方法，设计合理，通过构件预装、现场安装，提高了拆除效率；采用绳锯静力切割拆除，解决了常规拆除施工过程中的振动、噪音、灰尘及其它环境污染问题，且切割面平整、利于分离作业，可连续作业。
Variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method
A variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method comprises the steps of 10 transporting a plurality of components forming a bridge deck crane to a construction site; 20 sequentially assembling; 30drilling hoisting holes in the bridge deck; 40 setting cutting lines; 50 cutting beam sections along the cutting lines by adopting a rope saw; 60 controlling a winch to lower the beam sections, and commanding a beam transporting ship to bear and lower the beam sections; and 70 moving the bridge deck crane backwards to the next station until all the beam sections are dismantled. Compared with the prior art, the method has the following beneficial effects that the variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method is reasonable in design, and the dismantling efficiency is improved through component preassembly and field installation; the rope saw is adopted for static cutting and dismantling, the problems of vibration, noise, dust and other environmental pollution in the conventional dismantling construction process are solved, the cutting face is smooth, separation operation is facilitated, and continuous operation can be achieved.
一种变截面预应力连续箱梁桥面吊机吊装拆除方法，包括以下步骤：步骤10，将组成桥面吊机的若干构件运至施工现场；步骤20，依次组装；步骤30，在桥面上钻吊装孔；步骤40，设置切割线；步骤50，采用绳锯切割沿所述切割线切割梁段；步骤60，控制所述卷扬机进行梁段下放，指挥运梁船承接下放梁段；步骤70，后移所述桥面吊机至下一工位，直至完成所有梁段拆除。本发明具有如下有益效果：本发明变截面预应力连续箱梁桥面吊机吊装拆除方法，设计合理，通过构件预装、现场安装，提高了拆除效率；采用绳锯静力切割拆除，解决了常规拆除施工过程中的振动、噪音、灰尘及其它环境污染问题，且切割面平整、利于分离作业，可连续作业。
Variable cross-section prestress continuous box girder bridge deck crane hoisting and dismantling method
一种变截面预应力连续箱梁桥面吊机吊装拆除方法
XIAO LI (Autor:in) / LIANG FENG (Autor:in) / YU CAIWEN (Autor:in) / YU YIFAN (Autor:in) / ZHOU YANG (Autor:in) / PAN QIANG (Autor:in) / CAO BIN (Autor:in) / ZHU HUAPING (Autor:in) / SUN SHANGYU (Autor:in)
25.06.2021
Patent
Elektronische Ressource
Chinesisch
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