Assembled prestressed large plate inverted-camber self-adjusting system and using method thereof

A prestressed and self-adjusting technology, applied in the processing of floor slabs, building materials, construction, etc., can solve the problem of over-camber of prefabricated large slabs, reduce the operation of on-site workers, have good construction effect, and achieve a high degree of automation. high effect

Pending Publication Date: 2019-03-29
SHANGHAI CONSTR NO 5 GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides an assembled prestressed large slab anti-camber self-adjusting system and its use method, which is used to solve the problem that the assembled prestressed large slab anti-camber exceeds the specified limit, and has the advantages of high automation and fast construction speed , Good construction effect and reusable advantages

Method used

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  • Assembled prestressed large plate inverted-camber self-adjusting system and using method thereof
  • Assembled prestressed large plate inverted-camber self-adjusting system and using method thereof
  • Assembled prestressed large plate inverted-camber self-adjusting system and using method thereof

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Embodiment 1

[0039] This embodiment provides an assembled prestressed slab anti-camber self-adjusting system, combined below Figure 1 to Figure 5 The system is described further. The system includes a hydraulic loading device 20 , a reaction force frame 30 , an adjustment control reactor 40 and several camber measuring sheets 50 .

[0040] Wherein, the reaction force frame 30 is arranged along the length direction of the prestressed plate 10, and the two ends are connected with the hanging points 11 at the ends of the prestressed plate 10 through flexible connectors 60. The hydraulic loading device 20 is arranged under the middle part of the reaction force frame 30. A spacer 21 is provided between the loading device 20 and the prestressed plate 10 . The camber measuring sheet 50 is arranged along the length direction of the prestressed slab 10 , and is connected to the adjustment control reactor 40 with a signal, and is used for measuring the camber value of the prestressed slab 10 . Th...

Embodiment 2

[0048] This embodiment provides a method of using the self-adjusting system for the camber of the assembled prestressed large slab described in Embodiment 1, combined below Figure 1 to Figure 5 This method of use is further introduced. The method of use specifically includes:

[0049] Step 1: Arrange a number of camber measuring points on the hoisted prestressed slab 10, install the camber measuring piece 50 and the adjustment control reactor 40, and send the camber measuring piece 50 and the adjustment control reactor 40 signal connect.

[0050] At least three camber measuring pieces 50 are arranged on the prestressed slab 10 , one of which is located at the middle of the prestressed slab 10 along the lengthwise direction, and two of them are located at the two ends of the prestressed slab 10 along the lengthwise direction. Of course, it is also possible to add a camber test piece 50 between the three camber test pieces 50 to better collect the camber data of the prestress...

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Abstract

The invention discloses an assembled prestressed large plate inverted-camber self-adjusting system and a using method thereof. The inverted-camber self-adjusting system comprises a hydraulic loading device, counter force frames, an adjusting control reactor and a plurality of inverted-camber measuring pieces; the counter force frames are distributed in the length direction of a prestressed plate,and the two ends of each counter force frame are connected with hanging points of the end portions of the prestressed plate through flexible connecting pieces; the hydraulic loading device is arrangedat the lower portions of the middles of the counter force frames; the inverted-camber measuring pieces are used for measuring the inverted-camber value of the prestressed plate; the adjusting controlreactor is used for collecting measuring data of the inverted-camber measuring pieces, analyzing whether or not the inverted-camber value exceeds a set limit value and controlling the hydraulic loading device to be turned on and turned off. The inverted-camber self-adjusting system can achieve automatic control over the inverted-camber adjustment of the assembled prestressed plate, ensure that the inverted camber of the assembled inverted-camber plate meets the specified requirement and reduce the operation of field workers, and has the advantages of being high in automation degree and construction speed, capable of achieving the good construction effect and reusable.

Description

technical field [0001] The invention relates to an assembled prestressed large slab anti-camber self-adjusting system and a use method thereof, belonging to the technical field of assembled building construction. Background technique [0002] During the installation process of the prefabricated prestressed slab, the degree of anti-camber is different, exceeding the specified limit, the thickness of the post-cast laminated concrete layer is different, and the force on the overall floor is uneven. The traditional method is to preload and adjust the prestressed slabs in the sand and gravel yard, and it is also installed in sequence according to the value of the inverse camber to reduce the height dislocation of adjacent slabs. However, the aforementioned method is difficult to ensure that the camber is within the specified limit, and considerable labor and cost will be invested, the construction quality cannot be guaranteed, and the construction efficiency is low. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/17E04G21/14E04G21/16E04G21/18
CPCE04B5/17E04G21/142E04G21/163E04G21/18
Inventor 潘峰时春霞曹刘坤韩亚明徐沈京
Owner SHANGHAI CONSTR NO 5 GRP CO LTD
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