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Bridge and construction method thereof

A construction method and bridge technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as difficulty in high-altitude construction, high safety risks, long bridge construction period, long construction period, etc., to shorten the construction period and labor High efficiency and the effect of improving construction safety

Active Publication Date: 2012-10-24
CHINA RAILWAY NO 3 GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the bridge is very high and the span is large, the disadvantages of this method are: the construction period of the bridge pier and bridge is long, there is only one working surface, and each process must be constructed in sequence, which seriously restricts the total construction period, and the high-altitude construction is difficult and safe. Extremely risky, long construction period and high cost

Method used

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  • Bridge and construction method thereof
  • Bridge and construction method thereof
  • Bridge and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Take a bridge with a deck height of more than 100 meters and a hard ground under the girder body, which is suitable for erecting temporary supports, and its construction method as an example:

[0022] A bridge, comprising a pier and a girder body, the girder body comprising a prefabricated girder body 1, two side-span connecting sections 2 respectively connected to the head end and tail end of the prefabricated girder body 1, the pier comprising a prefabricated girder body The side piers 3 on the end side of the connecting section 2 and the main piers 4 symmetrically arranged on both sides of the end of the prefabricated beam body 1, and the two main piers 4 on both sides of the end of the prefabricated beam body 1 are connected with supporting prefabricated beams The load-bearing beam 5 of the body 1.

[0023] Bridge construction methods are:

[0024] A 1 6. Piling at the design position of the bridge pier 6.

[0025] The construction steps of the pile ...

Embodiment 2

[0042] Example 2: Take a bridge with a deck height of more than 100 meters, and the bridge below the bridge is river, soft foundation, deep valley, etc., which is not suitable for erecting temporary supports and its construction method as an example:

[0043] A bridge, comprising a pier and a girder body, the girder body comprising a prefabricated girder body 1, two side-span connecting sections 2 respectively connected to the head end and tail end of the prefabricated girder body 1, the pier comprising a prefabricated girder body The side piers 3 on the end side of the connecting section 2 and the main piers 4 symmetrically arranged on both sides of the end of the prefabricated beam body 1, and the two main piers 4 on both sides of the end of the prefabricated beam body 1 are connected with supporting prefabricated beams The load-bearing beam 5 of the body 1.

[0044] Bridge construction methods are:

[0045] A 1 6. Piling at the design position of the bridge pier 6.

[...

Embodiment 3

[0068] Take the bridge and its construction method when the deck of a certain bridge is more than 100 meters high and the foundation below the beam is the alternation of the river (or soft foundation) and the ground as an example: except for the construction method of the prefabricated beam body 1, the following construction method, other With embodiment 2. The construction of the prefabricated beam body adopts the combination of the bracket method and the cantilever pouring construction: the prefabricated beam body whose foundation is the ground section is constructed by the bracket method, and the prefabricated beam body whose foundation is the river section is constructed by the cantilever pouring construction, and the construction steps of the bracket method are the same as those in the embodiment 1. The construction steps of the cantilever pouring construction are the same as in Example 2.

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Abstract

The invention relates to the field of construction, in particular to a bridge and a construction method thereof. The bridge and the construction method of the bridge are provided to overcome shortcomings in construction methods of existing bridges, a conventional sequence construction method of performing cast-in-place construction of a beam body after bridge pier construction is finished is changed into a parallel construction operation method of a bridge pier and the beam body. The bridge comprises the bridge pier and the beam body, and the beam body comprises a precast beam body and two side span connecting segments respectively in butt joint with the head end and the tail end of the precast beam body. The bridge pier comprises side piers supported on end sides of the side span connecting segments and main piers symmetrically arranged on two sides of the end of the precast beam body, and a load-bearing beam for supporting the precast beam body is connected between the two main piers positioned on two sides of the end of the precast beam body. The construction method has the advantages of achieving the effects of shortening operating time and reducing cost at once, being high in work efficiency, being not subjected to limitation of a conventional construction process, reducing high-altitude operation difficulty and dangerous sources and improving construction safety for workers.

Description

technical field [0001] The invention relates to the construction field, in particular to a bridge and a construction method thereof. Background technique [0002] At present, the construction method of the continuous beam of the existing bridge is: the construction of the continuous beam is carried out after the construction of the pier is completed. However, when the bridge is very high and the span is large, the disadvantages of this method are: the construction period of the bridge pier and bridge is long, there is only one working surface, and each process must be constructed in sequence, which seriously restricts the total construction period, and the high-altitude construction is difficult and safe. The risk is extremely high, the construction period is long, and the cost is high. Contents of the invention [0003] In order to make up for the shortcomings of the existing bridge construction methods, the present invention provides a bridge and its construction meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D1/00E01D21/00
Inventor 周秋来张民栓李世安苏立华王兴璐樊立志王传任韩磊陈道林杨志申立刚秦玉生
Owner CHINA RAILWAY NO 3 GRP CO LTD
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