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A kind of prefabricated and assembled steel truss web concrete composite bridge and construction method

A prefabricated assembly and construction method technology, which is applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., can solve problems such as low construction accuracy, poor bridge integrity, and long construction period, so as to improve construction accuracy and quality, and increase the abdominal area. Pole area, the effect of shortening the construction period

Active Publication Date: 2022-07-19
HEBEI PROVINCIAL COMM PLANNING & DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a prefabricated assembled steel truss web concrete composite bridge and a construction method to solve the problem of high requirements on transportation and lifting capacity during the construction process of existing steel truss web concrete composite bridges. Problems of low precision, long construction period and poor bridge integrity

Method used

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  • A kind of prefabricated and assembled steel truss web concrete composite bridge and construction method
  • A kind of prefabricated and assembled steel truss web concrete composite bridge and construction method
  • A kind of prefabricated and assembled steel truss web concrete composite bridge and construction method

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Embodiment 1

[0041] A specific embodiment of the present invention, such as Figure 1-Figure 2 As shown, a prefabricated and assembled steel truss web concrete composite bridge is disclosed, which includes a plurality of segment units, the segment units are steel truss web concrete composite bridge segment units, and the segment units include prefabricated open channel beams 1 and cast-in-place beams. The top plate 2, the cast-in-place top plate 2 is set on the top of the prefabricated open channel beam 1; One end of 11 is connected with the bottom plate 13, the other end is connected with the connecting piece 14, one end of the steel vertical rod 12 is connected with the steel girder web 11, and the other end is connected with the semi-connecting piece 15, both of which are connected with the cast-in-place top plate 2 connect.

[0042] The steel truss web 11 is a steel tube member, and the use of the steel tube member reduces the overall weight of the prefabricated open channel beam 1 . ...

Embodiment 2

[0050] A specific embodiment of the present invention, such as Figure 3-Figure 6 As shown, a construction method of a prefabricated and assembled steel truss web concrete composite bridge is disclosed. The construction method is used to construct the prefabricated and assembled steel truss web concrete composite bridge of the first embodiment. The steps include:

[0051] Step 1: Prepare the prefabricated open channel beam;

[0052] The prefabricated open channel beam 1 is prefabricated, and the prefabricated open channel beam 1 of the nth segment unit is transported to the construction position, n≥2.

[0053] The prefabricated open channel beam 1 is completed in the factory and then transported to the construction site, which can not only ensure the precise positioning of the steel truss web 11, but also improve the quality of the concrete of the bottom plate 13. The steel truss web 11, the steel vertical rods 12 and the bottom plate 13 are prefabricated in the factory and t...

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Abstract

The invention relates to a prefabricated and assembled steel truss web concrete composite bridge and a construction method, belonging to the technical field of bridge construction, and solves the problem that the existing steel truss web concrete composite bridge has high requirements on transportation and hoisting capacity, low construction precision and poor construction during the construction process. The problem of long period and poor bridge integrity. The invention includes a plurality of segment units, the segment units are steel truss web concrete composite bridge segment units, the segment units include prefabricated open channel beams and a cast-in-place roof, and the cast-in-place roof is arranged on the prefabricated open channel the top of the beam. The invention combines the prefabrication and the cast-in-place process, shortens the construction period, improves the construction quality, and ensures the integrity of the bridge.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a prefabricated and assembled steel truss web concrete composite bridge and a construction method. Background technique [0002] The steel truss web concrete composite bridge is a new type of composite structure bridge. In the structure, steel truss webs are used to replace the concrete webs in the concrete box girder, and the end nodes of the webs are directly embedded in the concrete top and bottom support. It forms a combined structural system that consists of concrete roof, steel truss webs, concrete bottom, external and internal prestressed steel bundles. In my country, composite structure bridges started late, and steel truss web concrete composite bridges are even rarer. Compared with traditional concrete beams, the steel truss structure can significantly reduce the dead weight of the structure, improve the spanning performance, superior wind resistance, good ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D19/00E01D2/00
CPCE01D21/00E01D19/00E01D2/00
Inventor 刘贤鹏李志聪闫涛李长丽苏广和陈彦新纪强李箫刘桂满崔志勇张鹏
Owner HEBEI PROVINCIAL COMM PLANNING & DESIGN INST
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