Basin-type support replacement construction method for reserving all anchor bolts

A technology for anchoring bolts and construction methods, which is applied in bridge reinforcement, bridge parts, erection/assembly of bridges, etc., and can solve the problem of non-replaceability of new pot bearings, low tensile strength of epoxy resin, high temperature vertical and horizontal Stretching and other issues, to achieve good operability and practicability, good application prospects, to ensure the effect of functional effects

Active Publication Date: 2018-01-23
GUANGDONG HELI CIVIL ENG CO LTD
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AI Technical Summary

Problems solved by technology

[0004] (1) During the welding process of the steel plate on the new pot support and the pre-embedded leveling steel plate at the bottom of the beam, too high temperature will easily damage the function of the PTFE plate of the new pot support and cause a decrease in the strength of the beam concrete;
[0005] (2) After the steel plate on the new pot support is welded to the pre-embedded leveling steel plate at the bottom of the beam, the new pot support will not be replaceable;
[0006] (3) If the upper and lower steel plates of the pot support are connected with the bottom of the beam and the pad stone by filling epoxy resin, it is easy to cause the new pot support to be biased due to poor o

Method used

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Embodiment Construction

[0054] The structure of the basin type bearing of the present invention is as Figure 1 to Figure 5 As shown, it includes upper steel plate 1, PTFE plate 2, lower steel basin 3, lower steel plate 4, anchor bolt 5 of the lower steel plate in the second half, 6 anchor bolts in the upper steel plate in the second half, 7 anchor bolts in the upper steel plate in the first half, and Lower steel plate anchor bolt 8, second half lower steel plate anchor bolt hole 9, second half upper steel plate anchor bolt hole 10, front half upper steel plate anchor bolt hole 11, first half lower steel plate anchor bolt hole 12, second half lower steel plate processing Anchor bolt holes 13 and anchor bolt connection grooves 14 .

[0055] The present invention relates to a construction method for replacing a pot bearing with all anchor bolts retained. The construction method comprises the following steps:

[0056] The first step: process the old pot bearing, the specific process is as follows:

[...

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Abstract

The invention discloses a basin-type support replacement construction method for reserving all anchor bolts. The method comprises the steps that an old basin-type support is processed; a beam body adopts a synchronous jacking-up system, and the jacking-up height is larger than the thickness of a lower steel plate; the old basin-type support is taken out; the anchor bolts are processed; a novel basin-type support is processed, the structure of the novel basin-type support is the same as that of the old basin-type support obtained before processing, and the novel basin-type support is processedbefore installation; the novel basin-type support is installed; a jack is jacked up synchronously for oil return pressure relief, and replacement of the basin-type support is completed. By means of the construction method, all the anchor bolts of the original basin-type support are reserved, and it is guaranteed that connection of the novel basin-type support and the beam body and padstone is reliable.

Description

technical field [0001] The invention relates to a replacement construction method for a basin-type support, in particular to a replacement construction method for a basin-type support with all anchor bolts retained. Background technique [0002] At present, most of the basin support replacement techniques in the prior art use to cut off all the anchor bolts, take out the old support as a whole, place the new support on the original support as a whole, and use the pre-embedded leveling steel plate at the bottom of the beam for the upper steel plate. Welding, the lower steel basin is filled with epoxy mortar, or the steel plate is embedded in the bottom of the bridge without beams, and the upper and lower steel plates of the basin support are filled with epoxy mortar to ensure the connection between the basin support and the bottom of the beam and the pad stone. [0003] This construction technique has following disadvantages: [0004] (1) During the welding process of the st...

Claims

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Application Information

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IPC IPC(8): E01D22/00E01D19/04
Inventor 肖开军张长利杨文甫李鸿彬罗小聪戴春洋
Owner GUANGDONG HELI CIVIL ENG CO LTD
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