CN216689015U - Modulus formula expansion joint of easy maintenance - Google Patents

Abstract

An easy-to-maintain modular expansion joint comprises a plurality of cross beams, wherein a plurality of longitudinal beams which are vertical to the cross beams are arranged above the cross beams, and the longitudinal beams are respectively connected with the cross beams in a sliding manner through bearing structures; the bearing structure comprises a slide basin, a hanging piece angle steel matched with the cross beam for use is arranged below the slide basin, a jacking structure is arranged in the slide basin, a wear-resistant rubber plate is arranged above the jacking structure, and a fastener angle steel matched with the longitudinal beam for use is arranged above the wear-resistant rubber plate.

Description

Modulus formula expansion joint of easy maintenance

Technical Field

The utility model belongs to the technical field of constructional engineering, and particularly relates to an easy-to-maintain modular expansion joint.

Background

The bridge expansion joint is used for adapting to the deformation requirement of the upper structure of the bridge under the influence of factors such as temperature change, live load effect, concrete shrinkage and creep and the like, and ensuring that a vehicle can stably pass through the bridge deck. The expansion joints are generally arranged at two ends of the beam and between the beam end and the abutment back wall, and are exposed in the atmosphere and directly subjected to repeated friction and impact action of loads of vehicles and people, so that the expansion joints are the most vulnerable parts in the bridge and are difficult to maintain, the expansion joints with defects are easy to cause phenomena of vehicle jumping and the like, and the safety of the bridge structure and passing vehicles can be influenced when the damage is serious.

The modular expansion joint is suitable for bridge structures with large displacement, including hairless expansion joints, magaba expansion joints and the like. The main supporting members of the modulus type expansion joint are longitudinal beams and cross beams, and the longitudinal beams are connected by rubber strips to fill gaps and realize the function of expansion. The crossbeam that supports the longeron under the vehicle load constantly acts on, and the partial department of supporting of crossbeam can produce fatigue deformation, and then arouses longeron supporting condition to change, makes the cooperative work ability reduce between the longeron, and expansion joint overall structure atress is uneven. Further accelerating the damage, the expansion joint finally loses efficacy wholly. At present, it is a common practice to maintain the expansion joints by replacing the damaged expansion joint entirety in time to ensure the working performance of the bridge superstructure and the bridge deck system. The problems of high operation and maintenance cost, large waste, long traffic time influence and the like exist.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The present invention is directed to provide an easy-to-maintain modular expansion joint, so as to solve the practical problems mentioned in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an easy modulus formula expansion joint of maintaining, includes a plurality of crossbeams, placed a plurality ofly above the crossbeam with the crossbeam is the longeron of vertical position relation, a plurality of longerons are respectively through accepting the structure and a plurality of crossbeam sliding connection.

Further, it includes the slide basin to accept the structure, the slide basin below be equipped with the pendant angle steel that the crossbeam cooperation was used, be equipped with jacking structure in the slide basin, wear-resisting rubber board is installed to jacking structure's top, wear-resisting rubber board top install with the fastener angle steel that the longeron cooperation was used.

Further, the jacking structure includes two relative voussoirs that set up just the voussoir inboard is equipped with the inclined plane, two be provided with directly over the voussoir with the jacking piece that the voussoir inclined plane agrees with, install the top of jacking piece the wear-resisting rubber board, two the middle part of voussoir is equipped with the jacking bolt, jacking bolt and one of them voussoir threaded connection, the other end runs through another be equipped with stop nut on voussoir and the tip, just also be equipped with the cooperation on the lateral wall of slide basin the slotted hole that the jacking bolt passed.

Furthermore, a limiting plate is installed below the pendant angle steel, a plurality of limiting ribs are arranged between the limiting plate and the pendant angle steel, and a limiting drag reduction sliding plate is installed on the inner side of the limiting plate.

Furthermore, a wedge block drag reduction sliding plate is arranged on the inclined surface of the wedge block.

Furthermore, a cross beam drag reduction sliding plate is arranged above the cross beam and is positioned under the slide basin.

Furthermore, the crossbeam drag reduction slide plate is an engineering plastic alloy MGB plate.

(III) advantageous effects

(1) Based on a common modulus type expansion joint form, an adjustable cushion block device is additionally arranged, and the longitudinal beam can be forcedly jacked on the basis of meeting the deformation capacity of the longitudinal beam of the expansion joint along the longitudinal direction of the bridge.

(2) The modulus formula expansion joint crossbeam can produce local deformation under the vehicle load effect to make longeron support condition change, the whole working property of expansion joint reduces. In the periodic overhaul to the expansion joint, at the too big crossbeam department of deformation, can use this device to force the top to lean on the longeron, make it continue to participate in whole atress, avoid all the other longerons to undertake too big load, further guaranteed the whole bearing capacity of expansion joint, prolonged its life, reduced fortune dimension cost.

(3) And a wear-resistant rubber plate is arranged at the top of the jacking block. The wear-resistant rubber plate avoids the hard contact between the longitudinal beam and the jacking block, has the functions of shock absorption and energy dissipation, and can improve the capability of resisting the vehicle impact of the adjustable cushion block device. The rubber plate can ensure compact contact after the jacking block is forced to lean against and flex the overlarge expansion joint.

(4) The fastener angle steel and the cross beam drag reduction slide plate ensure that the adjustable cushion block and the longitudinal beam move together along the longitudinal direction of the bridge, so that the expansion and contraction performance of the expansion joint is exerted.

(5) The limiting nut on the jacking bolt is regularly adjusted by using the torque wrench, so that the position of the jacking block is adjusted, the supporting relation between the longitudinal beams and the cross beam is ensured, the purpose of keeping the supporting conditions of the longitudinal beams consistent is achieved, and the whole working performance of the expansion joint is further ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic three-dimensional arrangement of the present invention;

FIG. 2 is an enlarged view of the cross beam and top block of the present invention;

FIG. 3 is an exterior view of the top block of the present invention;

FIG. 4 is an assembled view of the top block component of the present invention;

the labels in the figures are:

1. a slide basin; 1-1, hanging angle steel; 1-2, limiting and reinforcing; 1-3, a limiting plate; 1-4, limiting and drag-reducing sliding plates; 2. a wedge block; 2-1, jacking a bolt; 2-2, a wedge block drag reduction slide plate; 3. jacking blocks; 4. a wear-resistant rubber plate; 5. fastener angle steel; 6. a cross beam; 6-1, a cross beam drag reduction slide plate; 7. a stringer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an easy-to-maintain modular expansion joint comprises a plurality of cross beams 6, a plurality of longitudinal beams 7 which are vertical to the cross beams 6 are arranged above the cross beams 6, and the longitudinal beams 7 are respectively connected with the cross beams 6 in a sliding mode through bearing structures; the bearing structure comprises a slide basin 1, a hanging piece angle steel 1-1 matched with a cross beam 6 for use is arranged below the slide basin 1, a jacking structure is arranged in the slide basin 1, a wear-resistant rubber plate 4 is arranged above the jacking structure, and a fastener angle steel 5 matched with a longitudinal beam 7 for use is arranged above the wear-resistant rubber plate 4.

The jacking structure comprises two opposite wedge blocks 2, inclined planes are arranged on the inner sides of the wedge blocks 2, jacking blocks 3 matched with the inclined planes of the wedge blocks 2 are arranged right above the two wedge blocks 2, a wear-resistant rubber plate 4 is arranged above the jacking blocks 3, jacking bolts 2-1 are arranged in the middle of the two wedge blocks 2, the jacking bolts 2-1 are in threaded connection with one wedge block 2, the wedge blocks 2 need to be tapped before the jacking bolts 2-1 are installed, one ends of the jacking bolts 2-1 are fixedly and threadedly connected with the wedge blocks 2, the other ends of the jacking bolts penetrate through the other wedge block 2, limiting nuts are arranged at the end parts of the other wedge block 2, and slotted holes matched with the jacking bolts 2-1 to penetrate through are also formed in the side wall of the slide basin 1.

A limiting plate 1-3 is arranged below the pendant angle steel 1-1, a plurality of limiting ribs 1-2 are arranged between the limiting plate 1-3 and the pendant angle steel 1-1, and a limiting anti-drag sliding plate 1-4 is arranged on the inner side of the limiting plate 1-3; the inclined surface of the wedge block 2 is provided with a wedge block drag reduction sliding plate 2-2.

A crossbeam drag reduction sliding plate 6-1 is arranged above the crossbeam 6, and the crossbeam drag reduction sliding plate 6-1 is positioned right below the slide basin 1; the crossbeam drag reduction slide plate 6-1 is an engineering plastic alloy MGB plate.

When the device is used, installation is carried out firstly, the crossbeam 6 is installed to a designated position according to design and is fixed, the crossbeam drag reduction sliding plate 6-1 is installed, the slide basin 1 provided with the pendant angle steel 1-1 and the limiting plate 1-3 is placed on the crossbeam drag reduction sliding plate 6-1 outdoors, after the slide basin 1 can freely slide along the crossbeam 6 in an inspection manner, the wedge block 2 provided with the wedge block drag reduction sliding plate 2-2 is installed in the slide basin 1, the jacking bolt 2-1 is installed, after the wedge block 2 and the jacking bolt 2-1 are inspected to work well in a cooperative manner, the jacking block 3 is continuously installed, and the wear-resistant rubber plate 4 and the fastener angle steel 5 are sequentially installed. After all the stringers are mounted in place, the stringers 7 are placed inside and the overall performance is checked.

When part of the cross beam 6 generates local excessive deformation to cause or support the space to be emptied, the distance between two wedge blocks 2 on the jacking bolt 2-1 is reduced by turning a limit nut on the jacking bolt 2-1, so that the wedge blocks 2 are extruded inwards, the wedge blocks 2 on two sides lift the jacking block 3 upwards by utilizing an inclined plane matched with the jacking block 3, the wear-resistant rubber plate 4 is enabled to jack against the longitudinal beam 7, the longitudinal beam 7 is forced to be jacked against, the longitudinal beam 7 continuously participates in overall stress, excessive load of the other longitudinal beams 7 is avoided, and the overall stress performance of the expansion joint is improved.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The utility model provides an easy modulus formula expansion joint of maintaining which characterized in that: including a plurality of crossbeams (6), crossbeam (6) top placed a plurality ofly with crossbeam (6) are longeron (7) of vertical position relation, and a plurality of longerons (7) are respectively through accepting the structure and a plurality of crossbeam (6) sliding connection.

2. The easy-to-maintain modular expansion joint of claim 1, wherein: the bearing structure comprises a slide basin (1), wherein a hanging piece angle steel (1-1) matched with the cross beam (6) is arranged below the slide basin (1), a jacking structure is arranged in the slide basin (1), a wear-resistant rubber plate (4) is installed above the jacking structure, and a fastener angle steel (5) matched with the longitudinal beam (7) for use is installed above the wear-resistant rubber plate (4).

3. An easy-to-maintain modular expansion joint as claimed in claim 2, wherein: the jacking structure comprises two opposite wedge blocks (2), inclined planes are arranged on the inner sides of the wedge blocks (2), jacking blocks (3) matched with the inclined planes of the wedge blocks (2) are arranged right above the wedge blocks (2), wear-resistant rubber plates (4) are arranged above the jacking blocks (3), jacking bolts (2-1) are arranged in the middle of the wedge blocks (2), the jacking bolts (2-1) are in threaded connection with one of the wedge blocks (2), the other ends of the jacking blocks penetrate through the other wedge blocks (2) and the end parts of the wedge blocks, and slotted holes matched with the jacking bolts (2-1) to penetrate through are also formed in the side walls of the slide basin (1).

4. The easy-to-maintain modular expansion joint of claim 2, wherein: limiting plates (1-3) are installed below the pendant angle steel (1-1), a plurality of limiting ribs (1-2) are arranged between the limiting plates (1-3) and the pendant angle steel (1-1), and limiting drag reduction sliding plates (1-4) are installed on the inner sides of the limiting plates (1-3).

5. The easy-to-maintain modular expansion joint of claim 3, wherein: the inclined surface of the wedge block (2) is provided with a wedge block drag reduction sliding plate (2-2).

6. The easy-to-maintain modular expansion joint of claim 2, wherein: and a beam drag reduction sliding plate (6-1) is arranged above the beam (6), and the beam drag reduction sliding plate (6-1) is positioned under the slide basin (1).

7. The easy-to-maintain modular expansion joint of claim 6, wherein: the crossbeam drag reduction slide plate (6-1) is an engineering plastic alloy MGB plate.

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