A construction method for bridge translation

A construction method and technology for bridges, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as unreliable safety performance, high operation difficulty, complicated process, etc., and achieve unique parameter control method, simple process, and time-consuming little effect

Active Publication Date: 2017-01-04
TENGDA CONSTR GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing bridge translation methods usually have complex procedures, high operation difficulty, low efficiency and safety performance need to be improved, and fail to meet the actual application requirements.

Method used

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  • A construction method for bridge translation

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing:

[0025] like figure 1 Shown, the invention provides a kind of construction method of bridge translation, comprises the following steps:

[0026] S1: Set up pier columns at the new site and set up a work platform, and erect steel pipes and scaffolding around the old pier columns of the bridge; preferably, lay plywood on the top of the steel pipes, and hang safety nets around them. Specifically, the new location of the bridge after translation is determined according to the urban planning plan, and several new pier columns (that is, the abutment supporting the bridge) are set at the new location according to the size of the bridge and other parameters; The horizontal distance and vertical distance are both 1.2m, and the step distance is 1.2~1.5m. During the erection process, the vertical pole is required to be inserted into the river bottom to ensure its stress strength; plywood...

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Abstract

The invention discloses a construction method for bridge horizontal movement. The method includes the following steps that firstly, new-site pier columns are arranged, an operation platform is erected, and steel pipes and an all-round scaffold are erected on the peripheries of old-site pier columns of a bridge; secondly, a sliding way between a new site and an old site is erected and a new and old site middle sliding way of a space steel truss structure is erected between the new-site pier columns and the old-site pier columns; thirdly, the whole bridge is synchronously jacked and all the old-site pier columns are provided with jacks used for synchronously jacking the whole bridge; fourthly, the restraint of old supports is released, the old supports are taken out after the bridge is jacked to the assigned position, and the restraint of the old supports to the bridge is released; fifthly, a horizontal movement travelling crane mechanism is installed, sliding feet are installed below the bridge, the jacks are detached, and force return systems are installed on old-site piers; and sixthly, the whole bridge is synchronously and horizontally moved, the horizontal movement travelling crane mechanism is detached, new supports are installed, the whole bridge synchronously falls, and therefore the whole bridge is moved. By the adoption of the method, the synchronism error is within -2 mm to 2 mm, a parameter control method is unique, and the effect is remarkable.

Description

technical field [0001] The invention specifically relates to a construction method for bridge translation. Background technique [0002] With the rapid development of social economy and the increasing traffic flow in cities, bridges and roads in urban areas will face more and more severe tests. In order to alleviate the traffic pressure, it is necessary to re-plan the urban bridges and roads, and some of the span bridges will face the situation of demolition and reconstruction because they cannot meet the planning requirements. [0003] For bridges with intact structural functions and various indicators that can still meet the requirements of use, demolishing and rebuilding will not only shorten the service life of the bridge, but also cause a huge waste of resources, and also consume a lot of labor, long construction period, and high capital cost. It will affect the normal navigation of the channel under the bridge. In response to the above problems, the current method is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 孙九春王波东薛武强王建忠
Owner TENGDA CONSTR GROUP CORP
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