Height-adjustable support

Abstract

The embodiment of the invention discloses a height-adjustable support. The support comprises a support main body, an adjusting seat, a sealing ring, and a grouting channel, wherein the support main body forms a first joint part; the adjusting seat is provided with a second joint part matched with the first joint part, one of the first joint part and the second joint part is a bulge, and the otherone of the first joint part and the second joint part is a groove matched with the bulge; the sealing ring is arranged between the bulge and the groove and is used for sealing a joint seam formed between the bulge and the groove; and the grouting channel is formed in the support main body or the adjusting seat, the grouting channel is connected to the joint seam, a grout overflowing channel is formed in the support main body or the adjusting seat, and the grout overflowing channel is connected to the joint seam. According to the embodiment, a liquid is poured into the joint seam between the support main body and the adjusting seat through the grouting channel, air in the joint seam is exhausted through the grout overflowing channel, and the support can stably rise in a height adjusting process.

Description

technical field [0001] The application belongs to the field of bridge construction, and in particular relates to a height-adjustable support. Background technique [0002] In existing bridge construction, a support is installed between the girder body and the bridge pier, and the height of the adopted support is fixed, and there is a problem of voiding after installation. Moreover, when installing bridge supports, sometimes it is necessary to install two or four supports at the same time for the same pier, and due to construction errors, uneven concrete creep or geological reasons, the uneven settlement of the pier and abutment is prone to occur. Due to the problem of inconsistent seat heights, the bridge is prone to pressure deviation or voiding during use, which affects the use of the support, resulting in a reduction in the service life of the support and the installation coefficient of the bridge. Moreover, for projects located in soft foundations, coastal or near-water...

AI Technical Summary

Problems solved by technology

[0002] In the construction of the existing bridge, the support is installed between the beam body and the pier. The height of the support used is fixed, and there is a problem of void after the installation is completed.

Moreover, when installing bridge supports, sometimes it is necessary to install two or four supports at the same time for the same pier, and due to construction errors, uneven concrete creep or geological reasons, the uneven settlement of the pier and abutment is prone to occur. The problem of inconsistency in the height of the seat, the phenomenon of pressure deviation or voiding is prone to occur during the use of the bridge, which affects the use of the support, resulting in a reduction in the service life of the support and the installation coefficient of the bridge

Moreover, for projects located in soft foundations, coastal or near-water areas, due to geological instability, it is necessary to consider whether foundation settlement will occur in the later operation process, and because the tonnage of the engineering supports is relatively large, if a discharge jack is used to adjust Highly padded steel plate, both labor-intensive and unsafe

In addition, during the construction process, there will also be situations where the elevation is different and height adjustment is required. However, adjusting the height of the support requires a lot of waste of manpower and material resources.

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