Method for replacing height-adjustable support

[0035] Such as Figure 1-3 As shown, a method for replacing a height-adjustable support includes the following steps:

[0036] S1: Install the temporary support 5 near the side of the support, and install the temporary support 5 on both sides of the support, so as to ensure the vertical bearing capacity of the temporary support 5 and avoid the bearing capacity of the temporary support 5 due to the over-centering of the beam body If a safety accident occurs, adjust the temporary support 5 so that it is closely attached to and fixed with the upper structure 3 and the lower structure 4, so as to avoid the vertical displacement of the upper beam body from affecting the overall force of the beam body;

[0037] S2: Lower the height of the support through the height adjustment mechanism 2, so that the support is separated from the bottom surface of the beam body, so that the load above the support is removed to prepare for the removal of the support;

[0038] S3: Remove the support ...

[0041] Such as figure 2 As shown, the upper structure 3 is a beam body, and the lower structure 4 is a pier column or a bridge pier. The support is composed of a support body 1 and a height adjustment mechanism 2. The height adjustment mechanism 2 is installed above or below the support body 1. The height adjustment mechanism 2 is equipped with a power drive device 6, which is carried between the upper and lower structures through the temporary support 5. The temporary support 5 is any one of jacks, rubber bodies, steel pads, shaped steel, concrete blocks or steel pipe concrete. The temporary support 5 acts on the bottom surface of the beam body, and the power drive device 6 provides power to change the height of the height adjustment mechanism 2, lower the height of the support, take out the support, replace with a new support, remove the temporary support 5, and finally complete the replacement of the support .

[0043] Such as Figure 4 As shown, the height adjustment mechanism 2 includes an upper plate 201, a lower plate 202 and an adjustment block 203, an adjustment cavity 204 is formed between the upper plate 201 and the lower plate 202, the adjustment block 203 is located in the adjustment cavity 204 and can be adjusted in the adjustment cavity 204 slides and makes the height adjustment mechanism 2 change in height.