Torsional and shear strengthening method of ring beam during cast-in-situ construction of 3m prestressed arch slab

A prestressed, arched plate technology, applied in the direction of formwork/formwork/work frame, construction components on-site preparation, construction, etc., to achieve universal applicability and superiority, high quality, fast and convenient installation

Active Publication Date: 2021-01-26
MCC5 GROUP SHANGHAI CORPORATION LIMITED
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Problems solved by technology

[0004] In view of this, the present invention proposes a torsion and shear reinforcement method for ring beams during cast-in-situ construction of 3m prestressed arch slabs, aiming at preventing ring beams from being damaged by torque and shear force during the stretching process of prestressed steel bars on 3m arch slabs The problem

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  • Torsional and shear strengthening method of ring beam during cast-in-situ construction of 3m prestressed arch slab
  • Torsional and shear strengthening method of ring beam during cast-in-situ construction of 3m prestressed arch slab
  • Torsional and shear strengthening method of ring beam during cast-in-situ construction of 3m prestressed arch slab

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[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] refer to figure 1 As shown, the embodiment of the present invention provides a method for torsion and shear reinforcement of ring beams during cast-in...

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Abstract

The invention proposes a torsion and shear reinforcement method for ring beams during cast-in-place construction of 3m prestressed arch slabs, which is characterized in that it includes: making a torsion and reaction support, and installing the torsion and reaction support to a bungalow On the ring beam of each prestressed arch plate, one of the anti-torsion reaction force brackets is installed on the opposite sides of each prestressed arch plate; the steel pipe frame of the formwork system is installed, and the lower part of the steel pipe frame of the formwork system is set as a bowl button type steel pipe frame, The upper part is set as a fastener-type steel pipe frame, and the top horizontal horizontal rods of the steel pipe frame of the formwork support system are densely set, and the horizontal horizontal lower side of the top layer is provided with longitudinal horizontal rods; the torsional reaction force support is a triangular composite support. Using the above-mentioned ring beam anti-torsion and shear reinforcement method, a simple and reusable anti-torque bracket can be made, and the shear force can be horizontally encrypted for the top support of steel pipes. Small size, fast and convenient installation, and reduce the labor intensity of construction personnel.

Description

technical field [0001] The invention relates to the technical field of buildings, in particular to a torsion-resistant and shear-resistant reinforcement method for ring beams during cast-in-situ construction of 3m prestressed arch slabs. Background technique [0002] At present, compared with the large-scale prefabricated concrete roof panels and steel structure tile roofs used in the 1970s and 1980s, the large-span prestressed concrete arch slab roof of the one-story granary has good thermal insulation performance, good air tightness, and long service life. The advantage of low maintenance cost is widely used in granary construction, especially the 1.2m wide arch plate has mature design and construction technology. [0003] The 3m arch slab is the latest technological achievement at present, and it is also the largest width of the arch slab. It has just started to be used in the country. Compared with the 1.2m wide arch slab, the number of construction joints of the 3m new ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G13/04
CPCE04G13/04
Inventor 苏元洪吴立东尹继鹏
Owner MCC5 GROUP SHANGHAI CORPORATION LIMITED
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