CN213804863U

CN213804863U - Temporary expansion joint construction device

Info

Publication number: CN213804863U
Application number: CN202022779974.8U
Authority: CN
Inventors: 姜志强; 李梦龙; 龙烈文; 王伟; 王延涛; 窦东庆; 李矿森
Original assignee: CCCC SHB Fourth Engineering Co Ltd
Current assignee: CCCC SHB Fourth Engineering Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-27
Anticipated expiration: 2030-11-26

Abstract

The utility model relates to a bridge expansion joint construction technical field, concretely relates to interim expansion joint construction equipment. The temporary expansion joint construction device is provided with a reserved expansion joint groove arranged on bridge deck pavement concrete; the reserved expansion joint groove is arranged across a gap between the precast beam slab and the abutment back wall; the precast beam plates and the abutment back wall are positioned below the bridge deck pavement concrete; a foam board is arranged at the gap between the precast beam slab and the abutment back wall; the top of the gap is tightly plugged by a wood wedge, and the top of the wood wedge protrudes out of the gap and is positioned in the groove of the reserved expansion joint; the upper part of the wooden wedge is provided with a thick steel plate; the bottom layer of the steel plate is filled with a graded crushed stone layer positioned in the groove of the reserved expansion joint; an asphalt concrete layer positioned on the upper part of the thick steel plate is also filled in the reserved expansion joint groove; the thick steel plate, the graded gravel layer and the asphalt concrete layer jointly form an expansion joint filling device of the elastic structure. The utility model discloses be convenient for the construction, practiced thrift the cost, and easily demolish labour saving and time saving.

Description

Temporary expansion joint construction device

Technical Field

The utility model relates to a bridge expansion joint construction technical field, concretely relates to interim expansion joint construction equipment.

Background

In the highway reconstruction and expansion construction process, sometimes for the needs of road traffic protection, the pavement paving is finished in half-width road asphalt, temporary traffic is needed to be conducted before the pavement paving of the asphalt upper surface layer is finished, the open traffic is reconstructed, if a traditional method is adopted for setting the bridge expansion joint, the elevation of the expansion joint and the elevation of the road surface are not on the same horizontal plane, and the installed expansion joint device needs to be dismantled when the upper surface layer is paved, so that materials are wasted, the cost is increased, concrete is not easy to chive off when the expansion joint is dismantled, and time and labor are consumed.

SUMMERY OF THE UTILITY MODEL

To above technical problem, the utility model aims at providing a temporary expansion joint construction equipment.

The utility model discloses a accomplish the technical scheme that above-mentioned purpose adopted as follows:

a temporary expansion joint construction device is provided with a reserved expansion joint groove arranged on bridge deck pavement concrete; the reserved expansion joint groove is arranged across a gap between the precast beam slab and the abutment back wall; the precast beam plate and the abutment back wall are positioned below the bridge deck pavement concrete; a foam plate is arranged at a gap between the precast beam plate and the abutment back wall; the top of the gap is tightly plugged by a wood wedge, and the top of the wood wedge protrudes out of the gap and is positioned in the groove of the reserved expansion joint; the upper part of the wooden wedge is provided with a thick steel plate; one end of the thick steel plate is welded with a steel bar I pre-embedded in the abutment back, and the other end of the thick steel plate is placed at the top of a steel bar II pre-embedded in the precast beam plate; the steel plate bottom layer is filled with a graded crushed stone layer positioned in the reserved expansion joint groove; the upper end surface of the graded crushed stone layer is flush with the upper end surface of the thick steel plate; an asphalt concrete layer positioned on the upper part of the thick steel plate is also filled in the reserved expansion joint groove; the thick steel plate, the graded gravel layer and the asphalt concrete layer form an expansion joint filling device of an elastic structure together; and the upper end surface of the asphalt concrete layer is flush with the upper end surface of the bridge deck pavement concrete.

And the steel bar I and the steel bar II are both bent steel bars.

The utility model provides a pair of interim expansion joint construction equipment utilizes the elastic construction that thick steel plate, gradation rubble, asphalt concrete formed to replace traditional expansion joint device, and the cost has been practiced thrift in the construction of being convenient for, and easily demolishs labour saving and time saving.

Drawings

Fig. 1 is a schematic cross-sectional view of a temporary expansion joint device.

In the figure: 1-reinforcing steel bar I, 2-reinforcing steel bar II, 3-graded broken stone layer, 4-thick steel plate, 5-asphalt concrete layer, 6-foam plate, 7-wood wedge, 8-asphalt pavement middle surface layer, 9-bridge deck pavement concrete, 10-bridge abutment butt strap, 11-bridge abutment back wall 12-precast beam slab.

Detailed Description

The invention is described with reference to the figures and the specific embodiments:

as shown in fig. 1, a temporary expansion joint construction equipment, right abutment back wall expansion joint embedded steel bar 1 and beam slab expansion joint embedded steel bar 2 buckle, the temporary expansion joint have a thick steel plate 4, 4 one end of thick steel plate weld with abutment back wall expansion joint embedded steel bar 1, the other end is put at 2 tops of beam slab expansion joint embedded steel bar, thick steel plate 4 can be in the same direction as the bridge to the slight removal of horizontal direction. 4 bottoms of steel plate pack gradation metalling 3, gradation metalling 3 fill height extremely 4 elevations of steel plate, the expansion joint recess fill asphalt concrete layer 5, fill height to 9 elevations of bridge deck pavement concrete, 8 normal pavements in the bituminous paving surface course.

Finally, it is noted that the above preferred embodiments have been given by way of illustration and not limitation, and that while the invention has been described in detail with reference to the preferred embodiments described above, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a temporary expansion joint construction equipment which characterized in that: the temporary expansion joint construction device is provided with a reserved expansion joint groove arranged on bridge deck pavement concrete; the reserved expansion joint groove is arranged across a gap between the precast beam slab and the abutment back wall; the precast beam plate and the abutment back wall are positioned below the bridge deck pavement concrete; a foam plate is arranged at a gap between the precast beam plate and the abutment back wall; the top of the gap is tightly plugged by a wood wedge, and the top of the wood wedge protrudes out of the gap and is positioned in the groove of the reserved expansion joint; the upper part of the wooden wedge is provided with a thick steel plate; one end of the thick steel plate is welded with a steel bar I pre-embedded in the abutment back, and the other end of the thick steel plate is placed at the top of a steel bar II pre-embedded in the precast beam plate; the bottom layer of the thick steel plate is filled with a graded crushed stone layer positioned in the groove of the reserved expansion joint; the upper end surface of the graded crushed stone layer is flush with the upper end surface of the thick steel plate; an asphalt concrete layer positioned on the upper part of the thick steel plate is also filled in the reserved expansion joint groove; the thick steel plate, the graded gravel layer and the asphalt concrete layer form an expansion joint filling device of an elastic structure together; and the upper end surface of the asphalt concrete layer is flush with the upper end surface of the bridge deck pavement concrete.

2. A temporary expansion joint construction apparatus as claimed in claim 1, wherein: and the steel bar I and the steel bar II are both bent steel bars.