Construction method of bridge cast-in-place box beam
A technology of box girder construction and cast-in-place, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., and can solve problems such as inconsistent construction methods of cast-in-place box girders, no standards and unreasonable, large safety risks, quality risks, etc. , to achieve the effect of saving erection time, reducing construction risk and reducing construction risk
Inactive Publication Date: 2011-07-13
天津第三市政公路工程有限公司 +1
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Problems solved by technology
However, the construction methods of cast-in-place box girders are not uniform, and there are no standards and unreasonable, which makes the various working conditions of cast-in-place box girders in the entire construction process have greater safety risks and quality risks, resulting in Accidents happen from time to time
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Embodiment 1
[0026] A construction method for a cast-in-place box girder, comprising a method for treating the foundation of the lower part of the cast-in-place box girder and a process for erecting an upper support. The foundation is treated with lime soil to meet the bearing capacity requirements; the lower part of the bracket uses square wood to diffuse the internal force of the bracket; the layout spacing of the bracket along the bridge direction, the transverse bridge direction, and the height direction; the setting method of the two-layer square wood at the bottom of the box girder; Supporting technology of beam side formwork; pouring sequence and method of box girder concrete.
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The invention relates to a construction method of a bridge cast-in-place box beam, belonging to the technical field of bridge construction. The construction method of a bridge cast-in-place box beam is characterized in that components are isolated from a furnace heating element by using a metal material when the components are heated in a furnace mainly based on radiation heat transmission so that the components are subjected to thermal treatment under a uniform heating condition. The construction method is simple, easy to realize, scientific and reasonable in design, convenient in operation, practical and economic; the components are uniformly heated during thermal treatment; and the construction method has the advantages of excellent quality and wide application range, and can be used for effectively improving the performance of metal materials.
Description
technical field [0001] The invention belongs to the technical field of bridge manufacture, and in particular relates to a construction method of a bridge cast-in-place box girder. Background technique [0002] At present, in municipal engineering and highway engineering, the bridge structure of cast-in-place box girder is mostly used. The cast-in-place box girder can not only be used in the straight section of the main line bridge, but also be cast into a ramp branch line with a small curvature radius according to the direction of the road along the line and the design intention, so it has a wide range of applications. However, the construction methods of cast-in-place box girders are not uniform, and there are no standards and unreasonable, which makes the various working conditions of cast-in-place box girders in the entire construction process have greater safety risks and quality risks, resulting in Accidents happen from time to time. For the construction and manufactu...
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IPC IPC(8): E01D21/00
Inventor 贾明浩王海良董鹏吴冬任权昌黄立伟杨新磊刘晓蕊孙锦镖刘顺刚刘岩刘德章倪泽飞孙晓峰高川胡跃钱林玉
Owner 天津第三市政公路工程有限公司
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