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A construction method for a fully prefabricated concrete freight suspension monorail structure

A technology of prefabricated concrete and prefabricated assembly, applied in infrastructure engineering, tracks, roads, etc., can solve the problems of heavy environmental pollution, long construction period, and low construction efficiency, and achieve reliable force transmission performance, good fatigue resistance, and convenient construction The effect of duration

Active Publication Date: 2020-06-30
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the concrete structural parts of existing bridges and buildings are mostly constructed by cast-in-place concrete, which has problems such as long construction period, low construction efficiency, and large environmental pollution.

Method used

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  • A construction method for a fully prefabricated concrete freight suspension monorail structure
  • A construction method for a fully prefabricated concrete freight suspension monorail structure
  • A construction method for a fully prefabricated concrete freight suspension monorail structure

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Such as Figure 1-Figure 5 As shown, a construction method of a fully prefabricated concrete freight suspended monorail structure includes the following steps:

[0054] Step 1: Prefabricating the required prefabricated parts. The required prefabricated parts include prefabricated raft foundation 1, prefabricated hollow concrete pier 2, prefabricated concrete beam 3, and prefabricated concrete track beam 4. specific:

[0055] On the prefabricated raft foundation 1, a number of protrusions 13, grooves 11 and positioning piles 12 (such as Image 6 , Figure 7 Shown);

[0056] The lower part of the prefabricated hollow concrete pier 2 is preprocessed with grouting holes 21 and vent holes 22 (such as Image 6 (Shown), a pier web diaphragm 25 is preprocessed on the upper part of the prefabricated hollow concrete pier 2. The pier web diaphragm 25 isolates the hollow part of the prefabricated hollow concrete pier 2 to form an upper hollow unit and a lower Hollow unit, and the prefabr...

Embodiment 2

[0066] Such as Picture 10 As shown, the difference between this embodiment and embodiment 1 is that in the first step, a sleeve 14 is pre-processed on the prefabricated raft foundation 1, and in the fifth step, the prefabricated hollow The concrete pier 2 is arranged on the sleeve 14, and concrete is poured into the sleeve 14 to connect the prefabricated raft foundation 1 and the prefabricated hollow concrete pier 2.

[0067] In the first step, a slurry hole 15 is pre-processed in the lower part of the sleeve 14. With this structure, after the sleeve 14 and the prefabricated hollow concrete pier 2 are connected, the subsequently poured concrete can enter through the slurry hole 15 The hollow part of the precast hollow concrete pier 2 forms a limit pin structure in the hollow part to further optimize the force of the precast hollow concrete pier 2 and improve the connection reliability.

Embodiment 3

[0069] Such as Picture 11 As shown, the difference between this embodiment and Embodiment 1 is that in the first step, the plug-type connecting portion 31 and the pier connecting portion 23 are respectively pre-processed with holes, and in the sixth step, the plug After the flexible connecting portion 31 is inserted into the pier connecting portion 23, the tensioning steel bars 8 are installed in the corresponding holes of the two, and the tensioning operation is performed.

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Abstract

The invention discloses a construction method of a full-prefabricated assembly type concrete freight transport suspension type monorail structure. The method includes the steps that required prefabricated parts are prefabricated and machined and comprise prefabricated raft foundations, prefabricated hollow concrete piers, prefabricated concrete crossbeams and prefabricated concrete track beams; asoil layer in the installation positions of the prefabricated raft foundations is compacted; all the prefabricated parts are transported to a construction site; all the prefabricated raft foundationsare fixed to a treated foundation; each prefabricated raft foundation is provided with the corresponding prefabricated hollow concrete piers and connected with the corresponding prefabricated hollow concrete piers through sleeves in a grouting mode; each prefabricated concrete crossbeam is erected on the corresponding pair of the hollow concrete piers, and each pair of the hollow concrete piers and the corresponding prefabricated concrete crossbeam are connected through plugs; and the corresponding prefabricated concrete track beams are installed on the two sides of each prefabricated concretecrossbeam, each prefabricated concrete crossbeam and the corresponding prefabricated concrete track beams are connected through bolts, and therefore installation of the monorail structure is finished.

Description

Technical field [0001] The invention relates to the field of track engineering, in particular to a construction method of a fully prefabricated concrete freight suspended monorail structure. Background technique [0002] Suspended monorail is a type of monorail, which is characterized by only one track instead of the two balanced tracks of traditional railways. Suspended monorails are mainly used in densely populated areas in cities to carry passengers. Currently, there are few suspended monorails used for cargo transportation. For freight suspended monorails, which are mostly located in suburbs or rural areas, rather than densely populated urban areas, the bridge piers can be designed more densely to reduce the span of the track beams and reduce the load on the structure. In the case of a small structural load, the entire structure can be designed into a concrete form to further reduce the cost of the track system while meeting the requirements of strength and rigidity. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B25/24E01D2/00E01D19/00E01D19/02E02D27/42E02D27/01E01D101/24E01D101/28
CPCE01B25/24E01D2/00E01D19/00E01D19/02E01D2101/24E01D2101/28E02D27/01E02D27/016E02D27/42E02D2300/002
Inventor 曾永平陶奇王应良游励晖郑晓龙庞林杨国静苏延文董俊徐昕宇周川江刘忠平
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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