Assembly type simply-supported box girder end crossbeam structure

A prefabricated, end-beam technology, used in bridges, bridge materials, bridge construction, etc., can solve the problems of poor recovery quality of roof notch, inability to remove inner mold, affecting structural stress, etc. The effect of pouring quality and speeding up construction progress

Pending Publication Date: 2018-08-03
CCCC FIRST HIGHWAY CONSULTANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problem is: the box section is a closed section type. When the box girder is prefabricated, not only the outer formwork needs to be set, but also the inner formwork needs to be set up indoors. Both ends of the prefabricated beam are equipped with end beams. The mold cannot be removed
The construction unit considered taking out the formwork by slotting in the roof of the box girder, but the construction was extremely difficult, and the restoration quality of the roof slot was poor, which affected the structural stress

Method used

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  • Assembly type simply-supported box girder end crossbeam structure
  • Assembly type simply-supported box girder end crossbeam structure
  • Assembly type simply-supported box girder end crossbeam structure

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Embodiment Construction

[0021] The present invention will be described in detail below in combination with specific embodiments.

[0022] The invention relates to an assembled simply supported box girder end beam structure, which comprises a box girder. The bottom plate of the box girder is evenly thickened from the inside to the outside, so that the cross section of the box is gradually shrunk from the inside to the outside. The box girder is composed of an upper top plate, a lower bottom plate and webs on both sides, and horizontal and vertical prefabricated end beams are arranged on the outside of the webs. The box girder and the prefabricated end beam are integrally casted at one time. The side of the prefabricated end beam is vertically coplanar with the top plate, and the bottom surface is higher than the bottom plate.

[0023] The box girder is provided with horizontal and vertical box inner plug boards, and the box inner plug boards are fixed in the box by mortar.

[0024] The box girder to...

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Abstract

The invention relates to an assembly type simply-supported box girder end crossbeam structure comprising a box girder. The box girder is composed of an upper top plate, a lower base plate and webs onthe two sides. The outer side of each web is provided with a horizontal vertical prefabricated end crossbeam, and a horizontal vertical in-box plug plate is disposed in the box girder. The end crossbeam scheme facilitates removal of a prefabricated box girder inner die, speeds up the construction progress, and at the same time facilitates the pouring quality of the end crossbeam and ensures the stress safety at the later stage.

Description

technical field [0001] The invention relates to the technical field of bridge construction engineering, in particular to an end beam structure of an assembled simply supported box girder. Background technique [0002] Prefabricated simply supported box girder is a commonly used bridge type in highway bridges. Due to its high torsional rigidity, good overall mechanical performance, quick construction and simple process, it is being used more and more. In order to bear the torque at the beam end and the concentrated reaction force of the support, it is necessary to set an end beam at the beam end. [0003] The end beams currently used are continuous indoors and outdoors, and the end beams are installed indoors and outdoors at the same time, with the same thickness, and generally require integral prefabrication with the main beam. The existing problem is: the box section is a closed section type. When the box girder is prefabricated, not only the outer formwork needs to be set...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04E01D101/26
CPCE01D2/04E01D2101/26
Inventor 陈宏俊黄成造王安惠余国红李卫民
Owner CCCC FIRST HIGHWAY CONSULTANTS
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