Steel and concrete combined box girder concrete wing plate formwork and construction method

Abstract

The invention discloses a steel and concrete combined box girder concrete wing plate formwork and a construction method. The formwork comprises a plurality of supporting cross beams, a plurality of supporting longitudinal beams, two supporting stand columns, a plurality of pull rods, a plurality of nuts, a plurality of gaskets, a plurality of longitudinal ridges, a plurality of steel cover plate brackets and a plurality of steel cover plates. The steel and concrete combined box girder concrete wing plate formwork and the construction method have the beneficial effects that the steel cover plates are arranged on top plates of erected steel box girders for forming a formwork system with the steel box girders, so that the problems of road crossing construction and non-bracket construction are solved, in the specific construction, the installation can be completed only by manual operation without the matching of large-scale hoisting equipment, and the elevation of a die block can be very conveniently and precisely adjusted, so that the precision is high; and in addition, for wing plates of different sizes, only formwork equipment with different specifications is needed to be manufactured, the used formwork equipment materials are fewer and are all common structural steel for engineering, the processing difficulty is small, the use is simple, and the site construction use is facilitated, so that the construction period is shortened, and the construction cost is low.

Description

technical field [0001] The invention belongs to the technical field of bridge construction auxiliary equipment, in particular to a steel-concrete combined box girder concrete wing plate template and a construction method. technical background [0002] With the rapid development of bridge construction, steel-concrete combined box girders are common. The wing plate is the main component of the steel-concrete box girder, and the wing plate formwork becomes an important component in the construction of the steel-concrete box girder. At present, the commonly used wing plate construction method is to use the bracket method to set up a door-shaped wing plate formwork system on the main road for construction work. However, this method requires the cooperation of the crane, and at the same time requires that there must be a site suitable for the hoisting operation under the bridge, and the hoisting operation has a great impact on the road traffic. When it is difficult to select the...

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Problems solved by technology

However, this method requires the cooperation of the crane, and at the same time requires that there must be a site suitable for the hoisting operation under the bridge, and the hoisting operation has a great impact on the road traffic. In addition, the requirements for the crane driver are also high when occupying the road. When it is difficult to select the working site for the crane, the installation of the wing plate formwork will be extremely difficult

In addition, this construction method is not only difficult to guarantee the construction safety for the main road with a large traffic flow, but also increases the construction cost due to the long period of installation and removal of the support method.

In addition, this method has a greater safety risk in the construction of the wing plate

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