Large damaged foundation bolt butt joint method

A technology of anchor bolts and anchor bolts, which is applied in the field of large-scale damaged pre-embedded anchor bolts, can solve the problems of difficulty in guaranteeing strength and verticality and time-consuming, etc., achieve good shear resistance, enhance shear resistance, short time effect

Inactive Publication Date: 2010-07-14
MCC BAOSTEEL TECH SERVICE
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for butt jointing of large damaged anchor bolts, which solves the problems that the traditional large damaged pre-embedded anchor bolt butt joint construction process takes a lot of time, and the strength and verticality are often difficult to guarantee.

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  • Large damaged foundation bolt butt joint method

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] First, check the damaged anchor bolts. Generally, the damage of anchor bolts mainly occurs at the connection between the upper concrete bolts and the equipment. The vibration of the equipment causes the wear and tear of the upper threads of the bolts, or the high-pressure water and other media cause certain damage to the bolts. Corrosion, leading to bolt failure. Because the large-scale anchor bolts of the direct-buried type generally have to go deep into the concrete layer at a depth of more than 1m, if the entire anchor bolt is directly removed and replaced with a new bolt, firstly, it will cause great damage to the integrity of the concrete layer, and secondly, the construction The difficulty is also very high. The foundation generally adopts a concrete layer above C30, especially the deep foundation at the bottom. Because it is formed by one-...

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Abstract

The invention relates to a large damaged foundation bolt butt joint method comprising a special socket. The special socket is a hollow cylindrical cylinder, the upper end and the lower end of the socket are respectively provided with a reinforced hoop, and the diameter of the reinforced hoop is bigger than that of the socket. The method comprises the following steps: cutting off the damaged part of the damaged foundation bolt; polishing the burr on the cutting part until the cutting part is smooth; arranging a new foundation bolt at the cutting part, and sheathing the special socket to carry out butt joint to the new foundation bolt and the damaged foundation bolt; welding and fixing the joint of the new foundation bolt and the damaged foundation bolt as well as the joint of the new foundation bolt, the damaged foundation bolt and the socket. The invention is suitable for the basic direct embedded foundation bolt of electromechanical equipment, plant steel structure pillars, equipment bearing heavy load or vibratory shock and the like, has short construction time, and can ensure butted strength and verticality.

Description

[0001] This application is a divisional application for an invention patent with the application number 200710044953.8, the application date being August 16, 2007, and the invention name being a special socket for butt jointing of large damaged anchor bolts and its butt joint method. technical field [0002] The invention relates to the field of butt jointing of large damaged pre-embedded anchor bolts, in particular to a method for butt joint of large damaged anchor bolts. Background technique [0003] Butt joint of large damaged pre-embedded anchor bolts, in the usual construction process, the old bolt damaged section is cut off first, and then the new bolt section that meets the elevation requirements is spot-welded with the old bolt section. The verticality of the old and new bolts is calibrated, and after spot welding and fixing, three round steels are used for binding welding and fixing (the cross-sectional area of ​​the three round steels is greater than or equal to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16M7/00B23P6/00
Inventor 杨荣青陆炳如李敬平
Owner MCC BAOSTEEL TECH SERVICE
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