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Tensioning construction method on post-tensioning method unbonded prestressed tendon beam

A technology of prestressed beams and construction methods, which is applied in construction, building structure, processing of building materials, etc., can solve the problems of unsuitable control of the quality of anchor sealing, difficult operation of anchor sealing, and cumbersome operation process, so as to save labor and Materials, quick tensioning construction, and the effect of completing tensioning construction

Pending Publication Date: 2021-06-08
CHINA HUAYE GROUP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] 1. The tensioning process needs to be completed by multiple people, the operation process is cumbersome and the risk factor is high;
[0005] 2. When the anchor is sealed after tensioning, a secondary formwork is required, the anchor sealing operation is difficult, and the quality of the anchor sealing is not suitable for control

Method used

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  • Tensioning construction method on post-tensioning method unbonded prestressed tendon beam

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Embodiment Construction

[0024] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details.

[0025] A post-tensioning construction method for unbonded prestressed tendon beams according to the present invention, by arranging the tension end of the prestressed steel strands on the prestressed beams, the tensioning construction and anchor sealing can be completed on the beams Construction, and then achieve the technical effect of safe and fast completion of tensioning construction.

[0026] Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] figure 1 An overall description of the scenario of the post-tensioned unbonded prestressed tendon beam over-tensioning construction method is given. Specifically, figure 1 ...

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Abstract

The invention provides a tensioning construction method on a post-tensioning method unbonded prestressed tendon beam, and belongs to the technical field of building construction. The construction method is characterized in that a prestressed steel strand is pre-buried in the prestressed beam, and the tensioning end of the prestressed steel strand extends outwards from a tensioning groove formed in the beam top of the prestressed beam; tensioning equipment is conveyed to the prestressed beam; and the tensioning end of the prestressed steel strand is tensioned through the tensioning equipment. Therefore, the technical effect of quickly conveniently and safely completing tensioning construction is achieved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a post-tensioning construction method for unbonded prestressed tendon beams. Background technique [0002] The cast-in-place post-tensioned prestressed concrete structure is one of the main structures of the prestressed concrete structure. The post-tensioned unbonded prestressed concrete technology is to establish prestress for the concrete structure to meet the design requirements through pre-embedded pipelines, threading reinforcement, tensioning and other processes. [0003] In the prior art, during the implementation of the post-tensioning unbonded prestressing technology, the tension end of the prestressed tendon (prestressed steel strand) is arranged under the beam. When performing tensioning operations, it is necessary to use scaffolding to build an operating platform under the beam, then transport the jack to the operating platform, and fix the guide chain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12
CPCE04G21/121
Inventor 尚波豆素芬郝志勇郑纪明
Owner CHINA HUAYE GROUP
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