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Pre-tensioning construction device and method for floor slab

A technology of construction device and construction method, which is applied to the processing of floors, building materials, and building components, etc. It can solve problems such as joints that are prone to water leakage, limited hoisting weight, and prefabricated floor slabs, so as to improve construction safety and construction efficiency. , Improving construction safety and improving construction efficiency

Active Publication Date: 2018-01-26
上海珮钧科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited hoisting weight of the crane, the current construction method is to splice multiple prefabricated floor slabs, so that the joints between the prefabricated slabs are prone to water leakage, especially in earthquakes, which are easy to fall, and the safety is poor
In addition, the preparation of prefabricated slabs currently requires specific pre-tensioned fixing piles, so that it is impossible to carry out cast-in-place construction of prefabricated slabs on site
If the overall cast-in-place construction of the prefabricated floor slab can be carried out on site, it can not only solve the problems of water leakage and safety of the prefabricated floor slab, but also save steel bars, and has the advantages of good flatness and large span, but there is no relevant technical report so far.

Method used

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  • Pre-tensioning construction device and method for floor slab
  • Pre-tensioning construction device and method for floor slab
  • Pre-tensioning construction device and method for floor slab

Examples

Experimental program
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Effect test

Embodiment 1

[0048] refer to figure 1 As shown, a pre-tensioning construction device 1 for floor slabs provided in this embodiment includes a support beam 2, and the two ends of the support beam 2 are respectively provided with a front steel bar hanger 3 and a rear steel bar hanger 4, and a prestressed steel bar 5 It is fixedly installed between the front steel bar hanging teeth 3 and the rear steel bar hanging teeth 4.

[0049] During building construction, the pretensioning construction device 1 is hoisted on the floor formwork, or on the load-bearing wall or / and load-bearing beam, so that there is no need to bind steel bars on the floor formwork as in the current construction method, and it can be directly Pouring concrete. After the concrete is cured, pull out the front steel bar hanger 3 and the rear steel bar hanger 4, at this moment the prestressed steel bar 5 will be pulled back to produce prestress. The floor slab constructed in this way is a prefabricated floor slab. Compared w...

Embodiment 2

[0051] refer to figure 2 As shown, a pre-tensioning construction device 1 for floor slabs provided in this embodiment includes a support beam 2, a front support 6 and a rear support 7 are respectively provided at both ends of the support beam 2, and the front support 6 The lower end is fixed with front steel bar hanger 3, and the lower end of rear support 7 is fixed with rear steel bar hanger 4, and prestressed steel bar 5 is fixedly installed between front steel bar hanger 3 and rear steel bar hanger 4.

Embodiment 3

[0053] refer to image 3 As shown, a pre-tensioning construction device 1 equipped with floor formwork provided in this embodiment includes a support beam 2, and front steel bar hangers 3 and rear steel bar hangers 4 are respectively installed at both ends of the support beam 2. A floor template 8 is laid on the crossbeam 2, and a prestressed steel bar 5 is installed between the front steel bar hanger 3 and the rear steel bar hanger 4. Front fixed hooks 9 and rear fixed hooks 10 are installed at the two ends of the supporting beam 2 for connecting with the load-bearing wall or / and the load-bearing beam.

[0054] The above work can be carried out on the ground, and then hoisted to the load-bearing wall or / and load-bearing beam to pour concrete after installation. After the concrete is solidified, pull out the front steel bar hanging tooth 3 and the rear steel bar hanging tooth 4, and the prestressed steel bar 5 will be fixed in the concrete. Since the prestressed steel bar 5 ...

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Abstract

The invention discloses a pre-tensioning construction device and method for a floor slab. The pre-tensioning construction device comprises a supporting cross beam, and reinforcing bar hanging teeth for fixing prestressed reinforcing bars are arranged at the two ends of the supporting cross beam. The pre-tensioning construction method comprises the following operation steps that (a1) the prestressed reinforcing bars are fixed to the reinforcing bar hanging teeth of the pre-tensioning construction device in Claim 1 after being pre-tensioned; and (b1) assemblies formed in the step (a1) are liftedto the upper portion of a laid floor slab formwork, and then next construction is carried out. Pre-tensioning work which only can be conducted in a factory originally is transferred to a site to be implemented, so that site pouring of the whole prefabricated floor slab is achieved, and compared with an cast-in-place floor slab, the pre-tensioning construction device and method have the advantagesof being good in insulation effect, high in flatness, large in span, high in construction safety and construction efficiency, capable of saving the reinforcing bars by 80% and the like, and can be used for floor slab building.

Description

technical field [0001] The invention relates to the construction technology of buildings, in particular to a pretensioning construction device and method for floor slabs. technical background [0002] Now with the continuous improvement of people's living standards, the quantity and quality of buildings have been greatly improved. Therefore, the saving of building materials and the improvement of construction speed are becoming more and more important. Now there are many inventions trying to save building materials, such as the patent application No. 200910076895.6 published by the Chinese Patent Office on July 22, 2009, and the title of the invention is "a kind of anti-floating construction method for thin-walled hollow tubes of cast-in-place concrete hollow floors". A method is disclosed in the invention, which uses thin steel plates to weld the anti-floating frame of the thin-walled hollow pipe to solve the anti-floating and anti-movement of the thin-walled hollow pipe d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12E04B5/32
Inventor 王武生
Owner 上海珮钧科技有限公司