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Prefabricated combined assembled anti-floating tensile prestressed anchor rod piece and construction method thereof

A combined assembly and prestressing technology, applied in the installation of bolts, protection devices, infrastructure engineering, etc., can solve problems such as pulling cracks

Pending Publication Date: 2020-07-10
JIANGSU GREEN RIVER ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the prepared anti-floating and tensile steel anchor can use the pre-tensioning method to prefabricate the prestressed anchor component and application technology, and use various anchor heads such as straight-through or enlarged heads to form a prestressed anchor system to overcome the anti-floating deformation, The rod body can be elastically deformed in the free section. Through the new method, prestressing is applied after the rod is prepared, and the finished product of the prestressed anchor rod is obtained for application, so as to not only achieve the control of pressure-bearing straight-through or variable-diameter steel cage expansion prestressing The purpose of the deformation amount in the practice of bolt engineering can better solve the factory production, solve the standard problems of cracking, anti-corrosion, and elastic change, and especially achieve the effect of saving construction time, saving cost, and improving project quality and efficiency

Method used

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  • Prefabricated combined assembled anti-floating tensile prestressed anchor rod piece and construction method thereof
  • Prefabricated combined assembled anti-floating tensile prestressed anchor rod piece and construction method thereof
  • Prefabricated combined assembled anti-floating tensile prestressed anchor rod piece and construction method thereof

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Embodiment Construction

[0074]As shown in the figure, an example of parts in the figure: base 1, concrete cushion 2, anchor rod after pouring or called anchor rod 3, main reinforcement prepared by concrete or mortar pouring or pipe string 3-2 of the outer layer of thick rolled steel bar , fixed plate or bearing plate 3-4, prestressed nut 3-3, anti-corrosion grease layer 3-6, plastic film sleeve 3-5, limiter 11, flange nut assembly 16-1 are used on the bottom plate Fixed anchor rod reinforcement (main reinforcement or finish-rolled thick reinforcement) 3-1, when post-stressing, flange nut assembly 16-1 is to fix the prestress of main reinforcement or finish-roll thick reinforcement after applying stress. Waterstop rubber strip 4, flange nut 16, concrete bottom plate 8, concrete bottom plate reinforcement 8-1, bottom plate cushion 8-2, and steel cage 10 can be straight-through or enlarged head structure, and the figure is variable diameter The enlarged diameter steel cage structure. Grouting body 12, ...

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Abstract

The invention discloses a prefabricated combined assembled anti-floating tensile prestressed anchor rod piece which comprises an unbonded steel bar or a main reinforcement steel bar, a prestressed anchor rod adopts a hollow pipe column and nuts for locking. The unbonded reinforcing steel bar or the main reinforcing steel bar penetrates into the pipe column, the prefabricated hollow pipe column istaken as a support, the two ends of the steel bar are tensioned, prestress is applied, and then the two ends of the pipe column are locked by the nuts, so that the prefabricated prestressed anchor rodpiece is formed. The main reinforcement steel bar is made of high-strength finish-rolled thread steel. An anticorrosive grease layer is arranged on the surface of the main reinforcement steel bar, and a sleeve is arranged outside the anticorrosive grease layer, so that the prefabricated prestressed unbonded steel bar is formed.

Description

technical field [0001] The invention relates to a novel prestressed anchor rod, in particular to a pre-tensioned or post-tensioned anti-floating and tensile anchor rod and its construction method. The prepared anti-floating and tensile steel anchor can be prefabricated by post-tensioning prestressed anchor components and application technology, and combined with various anchor heads such as straight-through or enlarged heads to form a post-tensioned prestressed anchor system to overcome anti-floating deformation , The rod body can be elastically deformed in the free section, and relates to an anchor rod system and even a compression pile system that overcomes the anti-floating straight-through or enlarged headband to apply prestress. Background technique [0002] The straight-through or enlarged head prestressed bolt technology is a new type of underground engineering application technology, which is in line with the spirit of "energy saving, emission reduction, and green de...

Claims

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Application Information

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IPC IPC(8): E02D5/74E02D31/00E02D31/12E21D21/00E02D17/04E02D17/20
CPCE02D5/74E02D31/00E02D31/12E21D21/0006E21D21/0013E21D21/0026E02D17/04E02D17/20
Inventor 王林陶刚王军
Owner JIANGSU GREEN RIVER ENVIRONMENTAL TECH CO LTD
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