Construction method for prestressed reinforcement of frame beam

A construction method and prestressing technology, applied in building maintenance, construction, building construction, etc., can solve the problem of limited reinforcement strength of frame beams, and achieve the effects of improving integrity, increasing shear strength, and enhancing compressive strength

Active Publication Date: 2019-11-19
浙江鼎固建筑技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Using carbon fiber sheets for reinforcement, although the construction is

Method used

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  • Construction method for prestressed reinforcement of frame beam
  • Construction method for prestressed reinforcement of frame beam
  • Construction method for prestressed reinforcement of frame beam

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Embodiment Construction

[0051] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0052] refer to figure 1 , is a construction method for prestressed reinforcement of a frame beam disclosed by the present invention, comprising the steps of:

[0053] S1, surface treatment;

[0054] The original surface layer of the frame beam 1 is peeled off to expose the concrete on the frame beam 1 . The concrete surface of the frame beam 1 is cleaned with a high-pressure air gun, so that there is no dust residue on the concrete surface of the frame beam 1 . Unload the floor adjacent to the frame beam 1, and support the scaffolding at the bottom of the floor adjacent to the frame beam 1 to buffer the floor's own weight and reduce the force transmitted from the floor to the frame beam 1.

[0055] According to the design requirements, carry out lofting on the surface of the frame beam 1 to determine the installation position of each device.

[0056] S2,...

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Abstract

The invention relates to a construction method for prestressed reinforcement of a frame beam. The construction method comprises the following steps of S1, surface layer treatment, wherein an originalsurface layer of the frame beam is stripped to expose concrete and to do cleaning; S2, material preparation; S3, prestressed reinforcement construction, wherein moving seats are fixed to the two endsof a prestressed reinforcement piece, prestressed stretching devices and a base are fixed, the base is fixed to the bottom of the frame beam, the prestressed reinforcement piece is placed between thetwo prestressed stretching devices, the moving seats are fixed to the prestressed stretching devices, the prestressed stretching devices are activated until a designed pulling force value is reached,and the moving seats are fixed to the frame beam; and S4, anti-shearing reinforcement construction, wherein an overall structure is mounted on the side wall of the frame beam after mounting seats arefixed to the two ends of an anti-shearing bar to ensure that the anti-shearing bar is inclined upwards from the portion far away from the end portion of the frame beam towards the end portion of the frame beam. According to the construction method, pre-pressure stress is applied to the bottom of the frame beam by the prestressed reinforcement piece, so that the bearing capacity of the frame beam is enhanced; and the anti-shearing bar can improve the shear strength of the frame beam.

Description

technical field [0001] The invention relates to the technical field of frame beam reinforcement, in particular to a construction method for frame beam prestress reinforcement. Background technique [0002] During the use of buildings, regular structural inspections are required. When the bearing capacity of the structural inspection and setting-out building cannot support its normal operation, the building needs to be reinforced. The general reinforced components are usually the column load-bearing structures of buildings, such as frame beams, frame columns, floors and foundations. [0003] There are many ways to strengthen frame beams, mainly including bonded steel reinforcement, carbon fiber, and enlarged cross-section reinforcement. [0004] For example, the Chinese patent whose authorized notification number is CN103912133B discloses a reinforcement method of frame beam transverse tension prestressed carbon fiber sheet, including the following main specific steps: past...

Claims

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/0218
Inventor 邵坤尧洪晓甜
Owner 浙江鼎固建筑技术有限公司
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