CN213508033U

CN213508033U - Public road bridge roof beam expansion joint device

Info

Publication number: CN213508033U
Application number: CN202022217521.6U
Authority: CN
Inventors: 张鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-22
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a public road bridge roof beam expansion joint device, include: the side longitudinal beam, the middle longitudinal beam and the metal woven mesh water stop belt; a displacement box is arranged at the lower part of the side longitudinal beam; the side longitudinal beam comprises an upper side longitudinal beam part and a lower side longitudinal beam part; the middle longitudinal beam comprises an upper part and a lower part; the upper part of the side longitudinal beam is detachably connected with the lower part of the side longitudinal beam through a first bolt, and the first bolt is vertically connected with the upper part of the side longitudinal beam and the lower part of the side longitudinal beam; two ends of the upper part of the middle longitudinal beam extend vertically downwards, two ends of the upper part of the middle longitudinal beam are detachably connected with the lower part of the middle longitudinal beam through second bolts, and the second bolts are horizontally connected with the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; one end of the metal woven net water stop is arranged at the occlusion part of the upper part of the side longitudinal beam and the lower part of the side longitudinal beam, and the other end of the metal woven net water stop is arranged at the occlusion part of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam. The metal mesh grid waterstop has the advantages of corrosion resistance and the like; the longitudinal beam is assembled, so that the damaged water stop and the longitudinal beam can be replaced more efficiently and conveniently.

Description

Public road bridge roof beam expansion joint device

Technical Field

The utility model belongs to the technical field of road engineering, especially, relate to a public road bridge roof beam expansion joint device.

Background

In order to meet the requirement of bridge deck deformation, expansion joint devices can be arranged between two beam ends, between the beam ends and a bridge abutment or at the hinged position of a bridge. Wherein the expansion joint arrangement can be used to adjust the displacement and coupling between the superstructure caused by vehicle loads and bridge building materials. The expansion joint can freely expand and contract, is firm and reliable in two directions parallel to and vertical to the axis of the bridge, and the vehicle can run smoothly without sudden jump and noise; the expansion joint can also prevent rainwater and rubbish earth infiltration jam. At present, the common highway bridge expansion joint devices in China are of three types, namely a modulus type expansion joint device, a comb plate type expansion joint device and a seamless type expansion joint device, wherein the modulus type expansion joint device is used in the largest number and the widest range.

However, in the conventional expansion joint device, the rubber waterstop is easy to age and crack, has poor environmental corrosion resistance, is easy to damage and lose efficacy when being stretched or compressed and easy to partially damage after sand enters, and the like, and the deformed steel of the expansion joint device is easy to break, dislocate and tilt and deform.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a highway bridge expansion joint device to overcome the above disadvantages.

A highway bridge expansion joint device comprises side longitudinal beams, middle longitudinal beams and metal woven mesh water stop belts; a displacement box is arranged at the lower part of the side longitudinal beam; the side longitudinal beams comprise upper side longitudinal beams and lower side longitudinal beams; the middle longitudinal beam comprises an upper part and a lower part; the upper part of the side longitudinal beam is detachably connected with the lower part of the side longitudinal beam through a first bolt, and the first bolt is vertically connected with the upper part of the side longitudinal beam and the lower part of the side longitudinal beam; two ends of the upper part of the middle longitudinal beam extend vertically downwards, two ends of the upper part of the middle longitudinal beam are detachably connected with the lower part of the middle longitudinal beam through second bolts, and the second bolts are horizontally connected with the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; one end of the metal woven net water stop is arranged at the occlusion position of the upper part of the side longitudinal beam and the lower part of the side longitudinal beam, and the other end of the metal woven net water stop is arranged at the occlusion position of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam.

In one embodiment, the side longitudinal beams comprise a left side longitudinal beam and a right side longitudinal beam; the left longitudinal beam is arranged on the left side of the middle longitudinal beam, and the right longitudinal beam is arranged on the right side of the middle longitudinal beam; the left longitudinal beam comprises an upper part of a left longitudinal beam and a lower part of a left longitudinal beam, and the right longitudinal beam comprises an upper part of a right longitudinal beam and a lower part of a right longitudinal beam; the upper part of the left longitudinal beam is meshed with the lower part of the left longitudinal beam through a first arc-shaped groove, and the upper part of the right longitudinal beam is meshed with the lower part of the right longitudinal beam through a second arc-shaped groove.

In one embodiment, the metal woven mesh water stop comprises a first metal woven mesh water stop, a second metal woven mesh water stop; and metal T-shaped blank pressing is arranged at both ends of the first metal woven mesh water stop and the second metal woven mesh water stop.

In one embodiment, one end of the first metal woven mesh water stop is arranged at the joint of the upper part of the left longitudinal beam and the lower part of the left longitudinal beam, and the other end of the first metal woven mesh water stop is arranged at the joint of the upper part of the middle longitudinal beam and the left side of the lower part of the middle longitudinal beam; one end of the second metal woven mesh water stop is arranged at the occlusion part of the upper part of the right longitudinal beam and the lower part of the right longitudinal beam, and the other end of the second metal woven mesh water stop is arranged at the occlusion part of the upper part of the middle longitudinal beam and the right side of the lower part of the middle longitudinal beam.

In one embodiment, the metal T-shaped press edges at two ends of the first metal mesh grid waterstop belt are respectively clamped at the occlusion part of the upper part of the left longitudinal beam and the lower part of the left longitudinal beam and the left occlusion part of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; and metal T-shaped press edges at two ends of the second metal mesh grid waterstop belt are respectively clamped at the occlusion part of the upper part of the right longitudinal beam and the lower part of the right longitudinal beam and the right occlusion part of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam.

In one embodiment, the surface of the metal mesh-woven water stop belt is covered with a rubber layer; the rubber layer is used for waterproofing.

In one embodiment, the upper side frame part and the lower side frame part are provided with first bolt connecting holes, and the first bolt penetrates through the first bolt connecting holes to detachably connect the upper side frame part and the lower side frame part; and second bolt connecting holes are formed in the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam, and the second bolt penetrates through the second bolt connecting holes to detachably connect the upper part of the middle longitudinal beam with the lower part of the middle longitudinal beam.

The highway bridge expansion joint device comprises side longitudinal beams, middle longitudinal beams and metal woven mesh water stop belts; a displacement box is arranged at the lower part of the side longitudinal beam; the side longitudinal beam comprises an upper side longitudinal beam part and a lower side longitudinal beam part; the middle longitudinal beam comprises an upper part and a lower part; the upper part of the side longitudinal beam is detachably connected with the lower part of the side longitudinal beam through a first bolt, and the first bolt is vertically connected with the upper part of the side longitudinal beam and the lower part of the side longitudinal beam; two ends of the upper part of the middle longitudinal beam extend vertically downwards, two ends of the upper part of the middle longitudinal beam are detachably connected with the lower part of the middle longitudinal beam through second bolts, and the second bolts are horizontally connected with the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; one end of the metal woven net water stop is arranged at the occlusion part of the upper part of the side longitudinal beam and the lower part of the side longitudinal beam, and the other end of the metal woven net water stop is arranged at the occlusion part of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam. The metal mesh grid waterstop has the advantages of higher flexibility, corrosion resistance, difficulty in damage and the like, and meanwhile, the later-stage management maintenance is facilitated; the side longitudinal beam and the middle longitudinal beam are designed to be assembled and installed in an upper-part and lower-part separating mode, the side longitudinal beam and the middle longitudinal beam are stressed reasonably and vibrate little when a vehicle passes through, and the damaged water stop belt, the side longitudinal beam and the middle longitudinal beam can be replaced more efficiently and conveniently by fastening or disassembling the bolts.

Drawings

FIG. 1 is a schematic view of an embodiment of a highway bridge expansion joint assembly;

FIG. 2 is a schematic view of an alternative embodiment of the expansion joint assembly for road bridges;

FIG. 3 is a schematic view of a metal mesh-grid waterstop of the structure of FIG. 1;

fig. 4 is a schematic view of a woven metal mesh water stop 300 covered with a rubber layer 302 in one embodiment.

Detailed Description

For a better understanding of the present invention, the contents of the present invention will be further clarified below with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples.

In an embodiment, as shown in fig. 1, the utility model provides a public road bridge expansion joint device mainly includes: the side longitudinal beam 100, the middle longitudinal beam 200 and the metal woven net water stop 300; the lower part of the side longitudinal beam 100 is provided with a displacement box 400; the side rail 100 includes an upper side rail portion 102, a lower side rail portion 104; the middle longitudinal beam 200 comprises a middle longitudinal beam upper part 202 and a middle longitudinal beam lower part 204; the upper side frame part 102 and the lower side frame part 104 are detachably connected through a first bolt 500, and the first bolt 500 is vertically connected with the upper side frame part 102 and the lower side frame part 104; two ends of the upper part 202 of the middle longitudinal beam vertically extend downwards, two ends of the upper part 202 of the middle longitudinal beam are detachably connected with the lower part 204 of the middle longitudinal beam through second bolts 600, and the second bolts 600 are horizontally connected with the upper part 202 of the middle longitudinal beam and the lower part 204 of the middle longitudinal beam; one end of the metal woven net water stop 300 is arranged at the joint of the side longitudinal beam upper part 102 and the side longitudinal beam lower part 104, and the other end of the metal woven net water stop 300 is arranged at the joint of the middle longitudinal beam upper part 202 and the middle longitudinal beam lower part 204.

The side stringers 100 and the center stringer 200 may be stringer deformed steel, and the upper surfaces of the side stringers 100 and the center stringer 200 are located on the same plane. The lower part of the side longitudinal beam 100 can be provided with a displacement box 400, wherein the displacement box 400 is also called a steel bar anchor and mainly plays a role in controlling displacement when sliding along the beam body.

In this embodiment, the side member 100 can be separated into the upper side member 102 and the lower side member 104, wherein the upper side member 102 can be detachably connected to the lower side member 104 via the first bolt 500, that is, the upper side member 102 is segmented, the length of the full-length node of the expansion joint device can be taken, and the deformed steel of the upper side member 102 can be installed or detached one by one, so as to avoid the inconvenience caused by the whole replacement when the damaged metal mesh-woven water stop 300 is replaced or the deformed steel of the side member has dislocation or tilting deformation. Specifically, the first bolt 500 may vertically connect the upper side member 102 and the lower side member 104, wherein the first bolt 500 may be a stainless steel hexagon socket head cap screw, which may prevent the side member of the expansion device from being easily embedded in sand during use. The profiled steel of the lower part 104 of the side longitudinal beam is integrated.

Likewise, the middle longitudinal beam 200 can be separated into a middle longitudinal beam upper part 202 and a middle longitudinal beam lower part 204, wherein both ends of the middle longitudinal beam upper part 202 can extend vertically downwards, both ends of the middle longitudinal beam upper part 202 can be detachably connected with the middle longitudinal beam lower part 204 through a second bolt 600, and the second bolt 600 horizontally connects the middle longitudinal beam upper part 202 with the middle longitudinal beam lower part 204. Specifically, the second bolt 600 may connect both ends of the middle longitudinal beam upper portion 202 with the middle longitudinal beam lower portion 204 horizontally. In this embodiment, through horizontal installation second bolt 600, let it avoid the thrust effect, use second bolt 600 flush end holding screw fastening, adverse factor influences such as corrosion, not hard up when avoiding long-term the use in the at utmost. Wherein, the shaped steel of the lower part 204 of the middle longitudinal beam is integrated, so that the rigidity and the geometric shape of the expansion joint device are unchanged.

The metal woven net water stop 300 can be a stainless steel wire woven net water stop, wherein the metal woven net water stop 300 can be formed by combining multiple layers of metal woven nets, one end of the metal woven net water stop 300 can be arranged at the occlusion position of the upper part 102 and the lower part 104 of the side longitudinal beam, the other end of the metal woven net water stop 300 can be arranged at the occlusion position of the upper part 202 and the lower part 204 of the middle longitudinal beam, and the metal woven net water stop 300 can be clamped between the side longitudinal beam 100 and the middle longitudinal beam 200 more stably because the upper part 102 of the side longitudinal beam is in occlusion connection with the lower part 104 of the side longitudinal beam through the first bolt 500.

In this embodiment, the metal mesh-woven water stop 300 has the advantages of higher flexibility, corrosion resistance, difficulty in damage and the like, and facilitates later-stage management and maintenance; the side longitudinal beams 100 and the middle longitudinal beams 200 are designed to be assembled and installed in an upper-lower separating mode, when the vehicle passes through, the side longitudinal beams 100 and the middle longitudinal beams 200 are stressed reasonably and vibrate little, and through bolt fastening or dismounting, damaged water stops, the side longitudinal beams and the middle longitudinal beams can be replaced more efficiently and conveniently. The metal woven net water stop 300 is formed by combining multiple layers of metal woven nets, so that the service life of the metal woven net water stop can be prolonged.

As shown in fig. 2, in one embodiment, the side stringers include a left side stringer 110, a right side stringer 120; the left longitudinal beam 110 is arranged on the left side of the middle longitudinal beam 200, and the right longitudinal beam 120 is arranged on the right side of the middle longitudinal beam 200; the left longitudinal beam 110 comprises a left longitudinal beam upper part 112 and a left longitudinal beam lower part 114, and the right longitudinal beam 120 comprises a right longitudinal beam upper part 122 and a right longitudinal beam lower part 124; the left side rail upper portion 112 engages the left side rail lower portion 114 via the first arcuate groove 116, and the right side rail upper portion 122 engages the right side rail lower portion 124 via the second arcuate groove 126. In this embodiment, because the upper and lower portion of limit longeron is connected locally and is the arc recess, can strengthen connecting the fastening nature, avoid the sand and soil embedding simultaneously. The left longitudinal beam lower part 114 and the right longitudinal beam lower part 124 can be set to be L-shaped, the influence of the forward thrust of an external crane is counteracted by using the rigidity of the deformed steel, and meanwhile, the loosening caused by the direct stress of the fastening bolt can be avoided.

In one embodiment, as shown in fig. 2, the metal mesh water stop comprises a first metal mesh water stop 310, a second metal mesh water stop 320; both ends of the first metal woven mesh water stop 310 and the second metal woven mesh water stop 320 are provided with metal T-shaped pressing edges 330.

In one embodiment, as shown in fig. 3, the metal T-shaped pressing edges 330 may be respectively disposed at two ends of the first metal woven mesh water stop and the second metal woven mesh water stop, so that the metal woven mesh water stops can be more stably clamped between the side longitudinal beams and the middle longitudinal beam.

In one embodiment, as shown in fig. 2, one end of the first woven metal mesh water stop 310 is disposed at the junction of the left side stringer upper portion 112 and the left side stringer lower portion 114, and the other end of the first woven metal mesh water stop 310 is disposed at the left side junction of the center stringer upper portion 202 and the center stringer lower portion 204; one end of the second woven metal net water stop 320 is arranged at the joint of the right longitudinal beam upper part 122 and the right longitudinal beam lower part 124, and the other end of the second woven metal net water stop 320 is arranged at the right joint of the middle longitudinal beam upper part 202 and the middle longitudinal beam lower part 204.

In one embodiment, metal T-shaped pressing edges at two ends of the first metal mesh grid waterstop belt are respectively clamped at the occlusion part of the upper part of the left longitudinal beam and the lower part of the left longitudinal beam and the left occlusion part of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; the metal T-shaped pressing edges at two ends of the second metal mesh grid waterstop are respectively clamped at the occlusion part of the upper part of the right longitudinal beam and the lower part of the right longitudinal beam and the occlusion part of the upper part of the middle longitudinal beam and the right side of the lower part of the middle longitudinal beam.

As shown in fig. 4, in one embodiment, the woven metal mesh water stop 300 is covered with a rubber layer 302; the rubber layer 302 may be used for waterproofing. The rubber layer 302 can be made of black polyurethane paint, and has the characteristics of good toughness, oxidation resistance, easiness in construction and the like.

In one embodiment, the upper part and the lower part of the side longitudinal beam are provided with first bolt connecting holes, and a first bolt penetrates through the first bolt connecting holes to detachably connect the upper part and the lower part of the side longitudinal beam; and the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam are respectively provided with a second bolt connecting hole, and a second bolt penetrates through the second bolt connecting holes to detachably connect the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam. The second bolt connecting holes in the upper portion of the middle longitudinal beam can be respectively formed in two ends of the upper portion of the middle longitudinal beam, and the second bolt connecting holes in the lower portion of the middle longitudinal beam can transversely penetrate through the lower portion of the middle longitudinal beam, so that the upper portion of the middle longitudinal beam can be detachably connected with the lower portion of the middle longitudinal beam.

In one embodiment, when the highway bridge expansion joint device provided by the present application is implemented on site, a specific use method includes:

(1) and cleaning all sundries in the notch area of the reserved groove at the beam end, and roughening the concrete on the bottom surface of the seam area to ensure the bonding firmness of the newly poured concrete and the beam body concrete.

(2) With the highway bridge expansion joint device that this application provided lay in the beam-ends preformed groove, must guarantee that the top surface is level and smooth with (bridge) road surface, indulge the horizontal slope unanimous with (bridge) road surface.

(3) Adjusting the gap of the reserved movable expansion amount of the expansion joint according to the temperature and the requirement, then installing a metal woven mesh water stop, wherein the longitudinal edge of the metal woven mesh water stop is a metal T-shaped blank holder, embedding the metal T-shaped blank holder of the metal woven mesh water stop into a reserved groove at the lower part of a middle/side longitudinal beam, fastening the upper part and the lower part of the middle/side longitudinal beam (the upper part and the lower part of the middle longitudinal beam are fastened at first and the upper part and the lower part of the side longitudinal beam are fastened at last by using bolts) (the multi-mode expansion joint is used for fastening the upper part and the lower part of the middle longitudinal beam at.

(4) After concrete curing of the anchoring area of the expansion joint device is completed, cleaning sundries in the water stop belt of the metal woven mesh again, checking that the appearance of the water stop belt of the metal woven mesh is intact and undamaged, brushing the upper surface of the water stop belt of the metal woven mesh with waterproof rubber paint, wherein the number of times, the interval time, the thickness and the like of brushing the rubber waterproof layer are determined by the type of the rubber waterproof paint, so that smooth drainage and no leakage can be achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A highway bridge expansion joint device is characterized by comprising side longitudinal beams, middle longitudinal beams and metal woven mesh water stops; a displacement box is arranged at the lower part of the side longitudinal beam; the side longitudinal beams comprise upper side longitudinal beams and lower side longitudinal beams; the middle longitudinal beam comprises an upper part and a lower part; the upper part of the side longitudinal beam is detachably connected with the lower part of the side longitudinal beam through a first bolt, and the first bolt is vertically connected with the upper part of the side longitudinal beam and the lower part of the side longitudinal beam; two ends of the upper part of the middle longitudinal beam extend vertically downwards, two ends of the upper part of the middle longitudinal beam are detachably connected with the lower part of the middle longitudinal beam through second bolts, and the second bolts are horizontally connected with the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; one end of the metal woven net water stop is arranged at the occlusion position of the upper part of the side longitudinal beam and the lower part of the side longitudinal beam, and the other end of the metal woven net water stop is arranged at the occlusion position of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam.

2. The road bridge expansion joint installation of claim 1, wherein said side stringers comprise a left side stringer and a right side stringer; the left longitudinal beam is arranged on the left side of the middle longitudinal beam, and the right longitudinal beam is arranged on the right side of the middle longitudinal beam; the left longitudinal beam comprises an upper part of a left longitudinal beam and a lower part of a left longitudinal beam, and the right longitudinal beam comprises an upper part of a right longitudinal beam and a lower part of a right longitudinal beam; the upper part of the left longitudinal beam is meshed with the lower part of the left longitudinal beam through a first arc-shaped groove, and the upper part of the right longitudinal beam is meshed with the lower part of the right longitudinal beam through a second arc-shaped groove.

3. The road bridge expansion joint installation of claim 2, wherein said metal mesh water stop comprises a first metal mesh water stop, a second metal mesh water stop; and metal T-shaped blank pressing is arranged at both ends of the first metal woven mesh water stop and the second metal woven mesh water stop.

4. The road bridge expansion joint device of claim 3, wherein one end of the first metal mesh water stop is disposed at the joint of the upper part of the left longitudinal beam and the lower part of the left longitudinal beam, and the other end of the first metal mesh water stop is disposed at the joint of the upper part of the middle longitudinal beam and the left side of the lower part of the middle longitudinal beam; one end of the second metal woven mesh water stop is arranged at the occlusion part of the upper part of the right longitudinal beam and the lower part of the right longitudinal beam, and the other end of the second metal woven mesh water stop is arranged at the occlusion part of the upper part of the middle longitudinal beam and the right side of the lower part of the middle longitudinal beam.

5. The road bridge expansion joint device according to claim 4, wherein the metal T-shaped pressing edges at two ends of the first metal mesh grid waterstop belt are respectively clamped at the occlusion position of the upper part of the left longitudinal beam and the lower part of the left longitudinal beam and the left occlusion position of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam; and metal T-shaped press edges at two ends of the second metal mesh grid waterstop belt are respectively clamped at the occlusion part of the upper part of the right longitudinal beam and the lower part of the right longitudinal beam and the right occlusion part of the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam.

6. The road bridge expansion joint installation of claim 1, wherein the metal mesh grid waterstop surface is covered with a rubber layer; the rubber layer is used for waterproofing.

7. The expansion joint device for road bridges as claimed in claim 1, wherein the upper part of the side longitudinal beam and the lower part of the side longitudinal beam are both provided with first bolt connecting holes, and the first bolt passes through the first bolt connecting holes to detachably connect the upper part of the side longitudinal beam and the lower part of the side longitudinal beam; and second bolt connecting holes are formed in the upper part of the middle longitudinal beam and the lower part of the middle longitudinal beam, and the second bolt penetrates through the second bolt connecting holes to detachably connect the upper part of the middle longitudinal beam with the lower part of the middle longitudinal beam.