Protection system, dismounting device and construction method for existing traffic of composite beam upper cover

A technology of protection system and dismantling device, used in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of small occupied space, cumbersome protection procedures, low protection reliability, etc., so as to improve reliability and reduce equipment. The effect of high investment and labor costs, and high protection reliability

Pending Publication Date: 2022-07-12
CHINA CONSTR FIFTH ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art, such as low protection reliability, cumbersome protection process and extremely difficult protection removal under very limited headroom, and provide a protection system and a disassembly device for the existing traffic on the upper cover of the composite beam And the construction method, the protective structure occupies a small space, meets the limited headroom requirements, provides high reliability protection, and at the same time the difficulty of protective construction and disassembly is significantly reduced, the construction process is convenient, and the construction speed is fast

Method used

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  • Protection system, dismounting device and construction method for existing traffic of composite beam upper cover
  • Protection system, dismounting device and construction method for existing traffic of composite beam upper cover
  • Protection system, dismounting device and construction method for existing traffic of composite beam upper cover

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Embodiment 1

[0056] Please refer to figure 1 , This embodiment provides a protection system for the existing traffic on the composite beam. The protection system is applied to an existing straddle type monorail in an urban area. The protection system includes a composite beam longitudinal beam 14, a composite beam cross beam 15, and a composite beam roof. Panel 16, composite beam support 17, sliding cushion 21, beam plate structure 22, beam fixed pulley 23, high-strength steel wire mesh 24, stopper 25 and locking member 26, wherein several composite beam longitudinal beams 14 are equally spaced Set up, and vertically weld several equidistantly spaced composite beam beams 15 between adjacent composite beam longitudinal beams 14, thus forming a composite beam structure, and the above-mentioned protective structure is erected on the existing piers 12 and cover beams 13, the protective structure is under the limited clearance of 50-100cm between the lower edge of the composite beam and the up...

Embodiment 2

[0063] This embodiment provides a disassembly device for the existing traffic protection system on the upper cover of the composite beam. The disassembly device is applied to the protection system of the first embodiment, and the protection system of the first embodiment is dismantled, which includes a first movable bracket 31, a second The movable bracket 32, the first sliding support 33, the second sliding support 34, the second bracket fixed pulley 35, the ballast pulley assembly 36, the traction rope 37 and the traction equipment; the first movable bracket 31 and the second movable bracket 32 It is constructed by using the existing steel structure bracket. The first movable bracket 31 is arranged beside the cover beam 13 and the protection system. The first movable bracket 31 cantilevered outside the cover beam 13 through the beam-slab structure 22, which is convenient for dismantling in the later construction. , the second movable bracket 32 ​​is arranged next to the first...

Embodiment 3

[0068] Please refer to Figure 7 and Figure 8 , the present embodiment provides the construction method of the protection system of the existing traffic on the composite beam, adopts the protection system of the existing traffic on the composite beam in the embodiment 1, the construction method includes the protection construction, and the protection construction comprises the following steps:

[0069] S1. Concrete the pier column 12 and the cover beam 13. After the structural construction of the pier column 12 and the cover beam 13 is completed, a sliding cushion 21 is set between the composite beam supports 17 on the top of the cover beam 13. The beam-slab structure 22 is prefabricated. The parts of the beam-slab structure 22 can be connected by bolting or welding. During the non-operation period of the track and the vehicle 11, the beam-slab structure 22 is lifted and placed on the top of the sliding cushion 21. Pay attention to the beam-slab structure 22 There is a cert...

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Abstract

The invention discloses a composite beam upper cover existing traffic protection system, a dismounting device and a construction method, and is applied to the technical field of composite beam construction protection, the composite beam upper cover existing traffic protection system comprises composite beam longitudinal beams, a beam plate structure with the height smaller than or equal to 50 cm, blocking pieces and a high-strength steel wire mesh, and the two sides of the beam plate structure are clamped to the adjacent side edges of the bottoms of the adjacent composite beam longitudinal beams through the blocking pieces correspondingly; strip-shaped areas between the adjacent composite beam longitudinal beams are vertically sealed and separated through the beam plate structures and the blocking pieces, and the high-strength steel wire meshes are arranged below the composite beam longitudinal beams; the dismounting device comprises a first movable support, a second movable support, a second support fixed pulley, a traction rope and a pulley assembly for ballasting. The construction method comprises protection construction and disassembly construction. The protection structure of the protection system is small in occupied space height, high-reliability protection is provided, the protection system can still be applied even when the clearance between the existing traffic building clearance and the composite beam is very limited, meanwhile, the difficulty of the construction method is reduced, the construction process is convenient, and the protection and dismantling speed is high.

Description

technical field [0001] The invention relates to the technical field of construction protection for composite beams, in particular to a protection system, a disassembly device and a construction method for a newly built composite beam to cover existing traffic, and is especially suitable for the vertical clear distance between the boundary of an existing traffic building and the composite beam. 0.5 to 1m. Background technique [0002] Usually, for the projects that span the existing trunk lines on bridges (including railways of all grades, urban rail lines, the upper section of subways, expressways and urban trunk roads), at the request of the transportation department, the bridges spanned by the superstructure must be constructed before the construction of the superstructure. For protection of existing traffic arteries, generally Figures 13 to 14 The shown bracket scheme of "welding and fixing the protective steel beam and the steel column" is used for protection (hereinaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00Y02A30/30
Inventor 周帅于鹏雷军何昌杰帅建国李水生杨坚方聪李璋
Owner CHINA CONSTR FIFTH ENG DIV CORP LTD
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