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A kind of installation method of steel pipe arch steel girder and suspender

An installation method and steel girder technology, applied in bridges, bridge construction, bridge materials, etc., can solve the problems of difficult transfer of large construction machinery, increased investment, and long construction period, so as to reduce the risk of high-altitude operations, reduce investment, and reduce input effect

Active Publication Date: 2020-05-19
中铁一局集团厦门建设工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The steel beam assembly site is on the side of the river bank, and it is difficult for large construction machinery to be transported to the river after processing
[0006] 2. Renting ships in the valley and assembling them on board is expensive and uneconomical
[0007] 3. After the steel beam is installed, the tension of each suspender is adjusted to adjust the cable force, and the construction period is long
[0008] 4. Repeated erection of high-altitude operation positioning steel beam operation platform, increasing investment

Method used

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  • A kind of installation method of steel pipe arch steel girder and suspender
  • A kind of installation method of steel pipe arch steel girder and suspender
  • A kind of installation method of steel pipe arch steel girder and suspender

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1, please refer to Figure 1 to Figure 4 , this embodiment only installs steel beams:

[0055] A method for installing a steel pipe arch steel girder. The steel pipe arch includes two arch rings separated on both sides, and the two ends of the arch ring are respectively stationed on both banks; the installation steps of the steel girder include:

[0056]Step 11: Set up a secondary hoisting platform between the inner sides of the arch rings on both sides, lift the first steel girder closest to the shore and lower the first steel girder from the gap between the two arch rings to the second on the bracket on the hoisting platform;

[0057] Step 12: Lift the bracket from the outside of the two arch rings, bring the first steel beam to the installation location for installation, install the tail of the first steel beam on the steel pier, install the first steel beam support on the pad On Shishang, obtain the three-dimensional space coordinates of the coordinate con...

Embodiment 2

[0065] Example 2, please refer to Figure 1 to Figure 4 , this embodiment installs the steel beam and the suspender at the same time:

[0066] A method for installing a mid-support steel pipe arch steel beam and a suspender, comprising the following installation steps:

[0067] Step 21, set up a secondary hoisting platform between the inner sides of the arch rings on both sides, place a suspender on the first steel girder closest to the shore and anchor the lower anchor point of the suspender to the first steel girder, and place the Hoist the first steel beam and boom and lower the first steel beam segment to the bracket on the secondary hoisting platform from the gap between the arch rings on both sides;

[0068] Step 22: Lift the bracket from the outside of the two arch rings, bring the first steel beam to the installation location for installation, install the tail of the first steel beam on the steel pier, install the first steel beam support on the pad On Shishang, obta...

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Abstract

The invention discloses an installation method of half-through steel pipe arch steel beams and hanging rods. The method comprises the steps of arranging a secondary hoisting platform between the innersides of arch rings on the two sides, lifting the hoisted steel beams first, putting down steel beam segments to a bracket on the secondary hoisting platform from a gap between the arch rings on thetwo sides, lifting the bracket from the outer sides of the two arches, and carrying the steel beams to a installation position of the steel beams for installation. In this way, existing machinery is fully utilized, and there is no need to make a new plane again and lease boats for hoisting in a river. The hanging rods are connected with the front and rear steel beam segments synchronously, so thatthe input of personnel and machinery is greatly reduced, the construction progress is accelerated, and the construction period is greatly shortened.

Description

technical field [0001] The invention relates to a method for installing a middle-supported steel pipe arch steel beam and a suspender. Background technique [0002] Now it is necessary to install steel beams on the mid-support steel pipe arch, the inner part of the arch circle transmits force through the suspender, and the outer part of the arch circle transmits force through the buttress. [0003] Under the existing technical conditions, the common methods of steel beam installation include self-propelled crane whole hole frame method, door frame crane whole hole frame method, bracket frame method, cable crane frame method, cantilever assembly frame method, and drag frame method . Based on the above several methods, only the cable crane frame can be selected for use when crossing mountains, rivers and valleys. When traditional cable hoisting is used for mid-span hoisting, the steel girder needs to be hoisted from the river to the designated location by means of a pontoon....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/10
CPCE01D21/10E01D2101/26
Inventor 陈慧徐建宁白利勇马欣骆国建荣林姚涛
Owner 中铁一局集团厦门建设工程有限公司