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Space-precasting translation-emplacing method for bridge construction

A technology for bridge construction and prefabricated beams, which is applied in bridges, bridge construction, erection/assembly of bridges, etc. It can solve the problem of insufficient prefabricated sites for bridge piers, save processing costs and backfill costs, compact site layout, and easy stability Guaranteed effect

Inactive Publication Date: 2008-12-10
CHINA CONSTR SECOND ENG BUREAU LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bridge construction method in which prefabrication in the air is moved in place to solve the technical problem that there is not enough prefabrication site near the pier during bridge construction

Method used

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  • Space-precasting translation-emplacing method for bridge construction
  • Space-precasting translation-emplacing method for bridge construction
  • Space-precasting translation-emplacing method for bridge construction

Examples

Experimental program
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Effect test

Embodiment Construction

[0037] The construction embodiment of the bridge construction method of the air prefabricated translation in place of the present invention:

[0038] Step (1) see figure 1 , Construction pier 1, the concrete strength meets the requirements.

[0039] Step (2) see figure 2 A door-shaped steel truss 2 with the same height as the bridge pier is erected along the bridge between two bridge piers of a certain span. platform3. The specific manufacturing and installation process of the prefabricated platform: first position and set out the line, determine the specific position of the lattice column on the pier foundation on site, use concrete to level the foundation slope locally as the foundation of the column; then process and install the lattice steel column; process The truss beam segments are welded, and finally the steel trusses are assembled.

[0040] Step (3) see image 3 , make prefabricated beam 4 on the prefabricated platform; the specific construction process of prefa...

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Abstract

The invention relates to an air-prepared horizontal positioned bridge construction, which comprises: first constructing the pier; constructing the gate steel truss whose height is the same with pier between two piers; the post of truss is on the pier support; the upper surfaces of steel truss and two piers form a prepared platform; then constructing the prepared beam on said platform; laying slide channel at the bottom of prepared beam to preset position via horizontal moving device; lifting the prepared beam and extracting out the slide channel to positioning the beam. The invention can avoid large mounting device, with simple operation, lower cost and short working time.

Description

(1) Technical field [0001] The invention relates to a construction method of a bridge. (2) Background technology [0002] In conventional bridge construction methods, according to the prefabricated girder installation method, it can be divided into: bridge erecting machine installation, gantry hoisting, crane hoisting installation; according to the layout of the prefabricated site, it can be divided into: a), bridgehead prefabrication: this method is often used for bridge erection Machine installed prefabricated beams. This method requires timely backfilling of the bridge head and sufficient space for prefabricated construction. b) Off-site prefabrication: Prefabrication construction is carried out in an off-site prefabrication yard. During installation, special transportation tools are required to be transported to the site for installation, and the transportation road must have sufficient flatness and strength. c) Prefabrication next to the pier: prefabrication nearby an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D1/00
Inventor 黄远超王贵军孙维振
Owner CHINA CONSTR SECOND ENG BUREAU LTD
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