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Four ways to replace bridge rubber bearings by using horizontal jacks

2022-03-08 10:28:28
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Horizontal jack is also called jack, it is the use of the internal gear oil itself as kinetic energy transfer target, facilitate do kinetic energy super times the transformation effect of hoisting machinery, the small and medium-sized hydraulic jack is used in the top of the vehicle, industrial equipment, production mold shell, etc., with the body of large hydraulic jack is used in the top of top part of the highway Bridges.


In the specific operation link, the actual operation staff can use the following four ways to apply the hydraulic jack:


1. Flat hydraulic jack method


The thin jack is placed in the narrow area of the load-bearing beam and pier column, and the beam body is jacked up immediately. The inner diameter dial indicator is used to observe the rate of the beam body rising, so as to ensure that the bearing force of each beam body of the bridge is evenly and continuously increasing. This method is now widely used jacking method.


2. Saddle bracket method


The bridge itself is used as the support point to erect the support on the pier column. The design scheme is "saddle support", and a hydraulic jack is placed to lift the beam body.


3. The wooden pillow support method is set on the road surface. Based on the sleepers, the densely covered or part of the wooden support is set on the highway bridge, and the hydraulic jack lifting beam body is set on the support.


4. Saddle bracket method


The bridge itself is used as the support point to erect the support on the pier column. The design scheme is "saddle support", and a hydraulic jack is placed to lift the beam body.


Four ways to replace bridge rubber bearings by using horizontal jacks


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