Hanging basket track beam walking method

A technology of track beams and tracks, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of increasing construction costs and hoisting operation risks, track misalignment, large pulling or pushing, etc., to reduce construction costs And the risk of hoisting operation, reducing the procedures for obtaining evidence and submitting approval, and avoiding the effect of track damage

Inactive Publication Date: 2020-04-21
CHINA RAILWAY GUANGZHOU ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main disadvantages of the pull and push methods are: 1. Reliable reaction points need to be set at the front or rear end for each movement of the hanging basket track; 2. The hanging basket track has a certain weight, and the track is usually connected to the concrete beam surface Or copy pad steel contact, the force used for pulling or pushing is relatively large, so the required equipment is more complicated
The main disadvantages of the segmented operation method are: 1. In the process of moving the hanging basket track forward, it is necessary to repeatedly install and disassemble the connecting bolts between the track segments, which is troublesome to operate; If the gap is large, if the beam surface is uneven or the pads are not firm, when the main truss of the hanging basket travels through the front and rear sections of the track, due to the different front and rear forces, it is easy to cause the track to be misaligned, running stuck, and even cause hanging baskets in severe cases. The danger of overturning; 3. Large-scale lifting equipment is required to assist in the transfer of the track, which increases the construction cost and the risk of hoisting operations

Method used

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  • Hanging basket track beam walking method
  • Hanging basket track beam walking method
  • Hanging basket track beam walking method

Examples

Experimental program
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Embodiment Construction

[0023] refer to Figure 1 to Figure 3 , the present invention is a kind of hanging basket track beam traveling method, it comprises the following steps:

[0024] S1: When the box girder concrete is poured in the hanging basket, the front and rear fulcrums at the bottom of the hanging basket 2 are supported on the top surface of the box girder section of the previous section through the backing plate + steel pier, and the connection height is pre-buried in the previous section. The finish-rolled threaded steel bar in the segmental box girder section is used to anchor the anchor seat 4 at the rear end of the hanging basket with the high-end finished-rolled threaded steel bar.

[0025] S2: After the concrete box in this section is poured, and the strength meets the design, the permanent longitudinal prestressed tendons are stretched and grouted, and the bottom formwork and side formwork of the hanging basket 2 are demoulded, and the hanging basket 2 is ready to move forward longi...

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PUM

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Abstract

The invention discloses a hanging basket track beam walking method. Buckling wheels are arranged at the front fulcrum and the rear fulcrum of the hanging basket to drive a hanging basket track to lift, walking forward movement of the hanging basket track is realized; large special hoisting equipment is not used, evidence obtaining and approval procedures can be effectively reduced, the construction cost and the hoisting operation risk are reduced, the hanging basket track integrally travels forwards, the site assembling, disassembling and transferring procedures are reduced, track damage is avoided, the traveling efficiency is improved, and the hanging basket can be manually moved forwards only by means of rolling friction resistance of the buckling wheels in the traveling and forward moving process. The method is applied to the field of hanging basket construction.

Description

technical field [0001] The invention relates to the field of hanging basket construction, in particular to a method for running a hanging basket rail beam. Background technique [0002] With the large-scale construction of highway and railway expressway network in our country, a large number of bridges across rivers, rivers and seas have been built one after another. As a mature technology, the hanging basket cantilever pouring construction method will be more and more used in engineering construction. . At present, the forward movement of the hanging basket track mostly adopts the pulling method, the pushing method, and the segmented operation method. Pulling method, pushing method: Jack up the hanging basket as a whole, use the front beam body to set the reaction point, and use chain hoists, winches or jacks to pull or push the track forward to the design position. Segmental operation method: the track is manufactured in segments, and the track segments are connected by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/10
CPCE01D21/10
Inventor 周文苏胜春张应红徐鹏祥游威范伟刑锋连晖张峰黄滔喻伟廖文锋高剑波李海泉梁剑鑫
Owner CHINA RAILWAY GUANGZHOU ENG GRP CO LTD
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