Hollow slab bridge structure with end floor beams and construction method thereof

Abstract

The invention relates to a hollow slab bridge structure with end floor beams and a construction method thereof, and belongs to the technical field of civil construction. The hollow slab bridge structure comprises a precast hollow slab, the end floor beams and a cast-in-situ structure layer. The precast hollow slab is supported by temporary supports which are arranged on two adjacent pier caps side by side in the horizontal direction of a bridge, the end floor beams supported by permanent supports are cast on the peripheral portions of the two ends of the precast hollow slab, and the cast-in-situ structure layer formed with the end floor beams together is cast on the end floor beams and the precast hollow slab. The hollow slab bridge structure is simple, the construction method is simple, the horizontal load transmission capacity of the hollow slab bridge structure with the end floor beams is improved, and the defect that a bridge structure is at an unfavorable stress state easily when supports of an existing domestic assembled type hollow slab bridge disengage is overcome.

Description

technical field [0001] The invention relates to a hollow slab bridge structure with end beams and a construction method thereof, belonging to the technical field of civil engineering. Background technique [0002] According to relevant data, as of 2010, the proportion of prefabricated hollow slab bridges in my country's highway bridge system reached 64%. This type of bridge has the advantages of low building height, easy prefabrication, and simple design and construction. [0003] However, during construction, it is difficult to accurately control the plane elevation of the support, which may cause the support to fall out after the hollow slab is hoisted in place, which is often referred to as the unfavorable phenomenon of "three-leg" support; at the same time, in the operation stage after the completion of the bridge, Due to the aging of the support material and other reasons, the phenomenon of support voiding will also occur. The void of the support will increase the imp...

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Problems solved by technology

[0004] In order to overcome the deficiencies of the existing assembled hollow slab bridges, the present invention provides a hollow slab bridge structure with end beams and its construction method. The lateral load transfer capacity of the hollow slab bridge structure overcomes the defect that the current domestic prefabricated hollow slab bridge tends to cause the bridge structure to be in an unfavorable stress state when the support is empty

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