A construction method for bridge translation

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...

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.

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