CN218116121U - Elastomer expansion joint suitable for simply supported T roof beam - Google Patents

Abstract

The embodiment of the application provides an elastomer expansion joint suitable for simply supported T roof beam, include: the pair of two beam end wedge-shaped blocks which are arranged in parallel are transversely arranged on the beam end surfaces of two simply supported T beams which are longitudinally adjacent to each other of the bridge; the elastomer expansion joint body is poured and arranged between the two beam end wedge blocks through a support piece, and a ballast blocking steel plate is arranged at the upper part of the elastomer expansion joint body; wherein, the height at elastomer expansion joint body both ends is with high with keeping off tiny fragments of stone, coal, etc. wall for keep off tiny fragments of stone, coal, etc. wall and bridge floor and form a U type groove, rivers flow along U type groove, and water drainage system is synthesized to the beam portion centralized drain pipe with the log raft, can prevent under the bridge floor rivers. The utility model provides an application of elastomer expansion joint on the simply supported T roof beam, elastomer expansion joint quick replacement and be located environmental protection district simply supported T roof beam waterproof and drainage problem.

Description

Elastomer expansion joint suitable for simply supported T roof beam

Technical Field

The application relates to bridge engineering technical field, specifically relates to an elastomer expansion joint suitable for simply supported T roof beam.

Background

The railway bridge prevents the rainwater at the beam end from overflowing for making the bridge floor drainage system continuous at the joint of the bridge floor, guarantees the durability of the anchor sealing concrete, and the beam end is provided with a water retaining platform which is internally provided with an expansion joint. Because the simple support T-shaped beam is mostly used in the area with small curve radius, the seam of the curve outer side beam is large (for example, the seam width of the curve outer side beam is 30cm when the radius of the single line simple support T Liang Quxian is 800m, the seam width of the curve outer side beam is 37cm when the radius of the single line simple support T Liang Quxian is 600m, and the seam width of the curve outer side beam is larger when the double line T-shaped beam is adopted), and because the seam of the curve outer side beam is larger than 30cm (without temperature deformation), the maximum seam width of the elastomer expansion joint is definitely specified in the elastomer type (Q/CR 806-2020) of the railway concrete bridge end waterproof device, so the elastomer expansion joint commonly used on the high-speed railway cannot be adopted on the simple support T-shaped beam.

And, the simple support T roof beam expansion joint of current application is located railway ballast and fender tiny fragments of stone, coal, etc. steel sheet below, the expansion joint change need dial out the railway ballast, remove fender tiny fragments of stone, coal, etc. steel sheet, and the expansion joint change need demolish the retaining platform earlier, need pour the retaining platform again after the change finishes, the expansion joint change process is complicated, consuming time long, inefficiency, only can not accomplish the change of one expansion joint in skylight time (during the train does not move), so the expansion joint change needs the train to stop for a period of time, it is great to the railway operation influence.

Meanwhile, the current environmental protection area has strict requirements, if a water source protection area is needed, water on a bridge is not allowed to flow into a water source under the bridge, the current commonly used railway bridge expansion joint cannot ensure that the water on the bridge flows into the water source under the bridge, because the side surface of the simply supported T-beam bridge expansion joint does not have a water retaining function at all, a large amount of water on the bridge flows under the bridge from the side surface, once the water on the bridge flows into the water source under the bridge, the environmental protection cannot be checked and accepted, and the influence is large.

SUMMERY OF THE UTILITY MODEL

To above-mentioned technical problem, this application embodiment provides an elastomer expansion joint suitable for simply supported T roof beam.

According to the embodiment of the application, an elastomer expansion joint suitable for simply supported T roof beam is provided, include: the pair of two beam end wedge-shaped blocks which are arranged in parallel are transversely arranged on the beam end surfaces of two simply supported T beams which are longitudinally adjacent to each other of the bridge;

the elastomer expansion joint body is poured and arranged between the two beam end wedge blocks through a support piece, and a ballast blocking steel plate is arranged at the upper part of the elastomer expansion joint body;

the height of two ends of the elastomer expansion joint body is the same as that of the ballast blocking wall, so that the ballast blocking wall and the bridge floor form a U-shaped groove, water flows along the U-shaped groove, and water is drained into the comprehensive drainage system through the beam part concentrated drainage pipe, so that the water on the bridge floor can be prevented from flowing down; the width direction of the bridge is transverse, and the length direction is longitudinal.

The beam-end wedge-shaped block can be matched with a beam-end curve of the simply supported T beam.

The support member includes:

the bottom lining part is arranged on the lower side between the two beam-end wedge-shaped blocks;

the inner side baffle and the outer side baffle are respectively arranged on the inner side wall and the outer side wall of the ballast retaining walls of the two longitudinally adjacent simply supported T beams, and a pouring space is provided for the elastomer expansion joint body.

The backing portion comprises:

the two groups of bottom lining support tables are respectively arranged on the side walls of the two beam-end wedge-shaped blocks;

and the bottom lining plate is horizontally arranged on the bottom lining support platform.

Each substrate support platform is arranged at intervals, the distance is 1m, and the length multiplied by the width multiplied by the thickness =10cm multiplied by 4cm multiplied by 1cm.

The bottom lining plate is of an arc-shaped plate structure with a convex middle part.

The bottom lining plate is a 5-thousandth transverse slope transversely arranged along the bridge, and the elevation of the top surface of the lateral water retaining boss corresponding to the downhill end of the transverse slope is consistent with that of the uphill end.

And the ballast blocking steel plate is fixedly arranged on the simply-supported T beam through an anchoring part.

And the end surfaces of the two beam end wedge blocks, which are contacted with the elastomer expansion joint body, are provided with coating layers.

Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:

(1) The beam end wedge-shaped block is additionally arranged on the beam end face of the simply supported T beam, so that the maximum beam joint is kept within the range of 10-15 cm, and the method is suitable for mounting the elastomer expansion joint body;

(2) The utility model discloses an elastomer expansion joint body is poured through support piece and is set up between two beam ends wedge, and elastomer expansion joint body utilizes sharp cutter can demolish, and simply supported T beam ends partition wall is apart from the beam end 30cm, has 70cm space (beam gap 10cm wide plus two end partition walls apart from the beam end 30 cm) between the end partition wall, and has into people's hole on the end partition wall, and the maintainer can reach under the beam gap, and the maintainer stands on the mound top under the beam gap and can demolish existing elastomer expansion joint body, clearance elastomer interface and apply paint interface coating;

(3) In order to fix the bottom lining plates conveniently, a bottom lining supporting platform with the distance of 1m is arranged at the beam end, wherein the bottom lining supporting platform is prefabricated in a beam yard and cannot be continuously arranged, the contact surface of a beam body and an elastomer expansion joint body cannot be cleaned due to continuous arrangement, meanwhile, a 5-thousandth transverse slope is arranged along the transverse bridge direction for facilitating natural flowing of the elastomer expansion joint body in the later period during pouring, and the height of the top surface of a water retaining boss at the side of the downslope end of the bottom lining plate is consistent with that of the upslope end;

(4) Water source protection ground environmental protection requirement is comparatively strict, and rivers go out on inaccurate bridge floor, for preventing that rainstorm season water conservation flows down from the bridge, the elastomer expansion joint body keeps off tiny fragments of stone, coal, etc. wall position and keeps off tiny fragments of stone, coal, etc. wall and bridge floor and constitute a U type groove, and rivers flow along U type groove, and through roof beam portion centralized drain pipe with the drainage income comprehensive drainage system, can prevent under the bridge floor rivers, satisfy the environmental protection and accept the requirement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of a beam end wedge block of the present invention;

fig. 2 is a side view of the beam end wedge of the present invention;

FIG. 3 is a schematic diagram of the present invention;

fig. 4 is a schematic structural view of the bottom lining portion of the present invention;

reference numerals:

the expansion joint comprises 1-simply supported T-shaped beam, 2-beam end wedge-shaped blocks, 3-anchoring parts, 4-ballast retaining walls, 5-elastomer expansion joint bodies, 6-inner side baffles, 7-ballast retaining steel plates, 8-outer side baffles, 9-bottom lining support tables, 10-lateral water retaining bosses and 11-bottom lining plates.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 1 to 3, an elastic body expansion joint suitable for a simply supported T-beam includes: a pair of two beam end wedge-shaped blocks 2 which are arranged in parallel are transversely arranged on the beam end surfaces of two simply supported T beams 1 which are longitudinally adjacent to each other of the bridge, so that the maximum beam gap is kept in the range of 10-15 cm; the elastic body expansion joint body 5 is poured and arranged between the two beam end wedge blocks 2 through a support piece, and a ballast blocking steel plate 7 is arranged at the upper part of the elastic body expansion joint body 5; the height of two ends of the elastomer expansion joint body 5 is the same as that of the ballast blocking wall 4, so that the ballast blocking wall 4 and the bridge floor form a U-shaped groove, water flows along the U-shaped groove, and water is drained into the comprehensive drainage system through the beam part centralized drainage pipe, so that water on the bridge floor can be prevented from flowing down; the width direction of the bridge is transverse, the length direction of the bridge is longitudinal, and the end surfaces of the two beam end wedge-shaped blocks 2, which are contacted with the elastomer expansion joint body 5, are provided with coating layers.

As shown in fig. 1 and 2, the beam-end wedge block 2 can be matched to the beam-end curve of a simply supported T-beam 1. The support member includes: the bottom lining part is arranged on the lower side between the two beam-end wedge-shaped blocks 2; the inner side baffle 6 and the outer side baffle 8 are respectively arranged on the inner side wall and the outer side wall of the ballast retaining wall 4 of the two longitudinally adjacent simply-supported T beams 1, and a pouring space is provided for the elastomer expansion joint body 5.

As shown in fig. 4, the backing portion includes: two groups of bottom lining support tables 9 are provided, and the two groups of bottom lining support tables 9 are respectively arranged on the side walls of the two beam-end wedge-shaped blocks 2; and the bottom lining plate 11 is horizontally arranged on the bottom lining support platform 9.

As shown in fig. 3, each of the substrate support tables 9 is arranged at intervals of 1m, and has a length × width × thickness =10cm × 4cm × 1cm.

As shown in fig. 4, the bottom lining 11 is a middle convex arc-shaped plate structure.

As shown in fig. 3, the bottom lining 11 is a 5% cross slope transversely arranged along the bridge, and the elevation of the top surface of the lateral water retaining boss 10 corresponding to the downhill end of the cross slope is consistent with that of the uphill end.

As shown in fig. 4, the ballast retaining steel plate 7 is fixedly mounted on the simply supported T-beam 1 through the anchor member 3.

In the embodiment, during construction:

1. pouring a beam end wedge block 2 and a bottom lining support platform 9 on a beam field by a precast beam, erecting the precast beam in place by a beam transporting vehicle and a bridge erecting machine, installing a bottom lining plate 11, an inner side baffle plate 6 and an outer side baffle plate 8, and pouring an elastomer expansion joint body 5, specifically, pouring the elastomer expansion joint body 5 in an upslope end ballast retaining wall 4 of the bottom lining plate 11, enabling the elastomer expansion joint body 5 to naturally flow along a transverse slope, stopping elastomer pouring after the height of the downslope end elastomer expansion joint body 5 in the downslope end ballast retaining wall 4 reaches a design height, removing the bottom lining plate 11, the inner side baffle plate 6 and the outer side baffle plate 8 after the elastomer expansion joint body 5 meets the design strength requirement, pouring a lateral water retaining boss 10 and a ballast retaining steel plate 7, and finishing the installation of the elastomer expansion joint body 5;

2. the replacement construction step of the elastic body expansion joint body comprises the following steps:

the method comprises the following steps: the elastomer expansion joint body 5 is dismantled, the elastomer interface is cleaned and the interface coating is coated on the pier top by adopting a special cutter;

step two: installing the bottom lining plate 11 on the bottom lining support table 9 in two sections, transversely moving to a designed position, and sealing the seam of the bottom lining plate 11;

step three: pouring an elastomer expansion joint body 5 in the ballast wall 4 at the upslope end of the bottom lining plate 11, wherein the elastomer expansion joint body 5 naturally flows along the transverse gradient (the pouring of the elastomer is completed at one time, the proportion of elastomer materials needs to be adjusted during construction, and the fluidity of the elastomer materials is ensured), and stopping the pouring of the elastomer after the height of the elastomer expansion joint body 5 at the downslope end in the ballast wall 4 at the downslope end is observed to reach a designed height;

step four: and (5) finishing replacing the elastomer expansion joint body, and checking and accepting.

In the description of the present application and the embodiments thereof, it should be understood that the terms "top", "bottom", "height", and the like, are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present application.

In this application and its embodiments, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application and its embodiments, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. The utility model provides an elastomer expansion joint suitable for simply support T roof beam which characterized in that includes:

the pair of two beam end wedge-shaped blocks (2) which are arranged in parallel are transversely arranged on the beam end surfaces of two simply supported T beams (1) which are longitudinally adjacent to each other of the bridge;

the elastic body expansion joint body (5) is arranged between the two beam end wedge blocks (2) in a pouring mode through a supporting piece, and a ballast blocking steel plate (7) is arranged on the upper portion of the elastic body expansion joint body (5);

the height of the two ends of the elastomer expansion joint body (5) is the same as that of the ballast blocking wall (4), so that the ballast blocking wall (4) and the bridge floor form a U-shaped groove, water flows along the U-shaped groove, and water is drained into the comprehensive drainage system through the beam part concentrated drainage pipe, so that the water on the bridge floor can be prevented from flowing down; the width direction of the bridge is transverse, and the length direction is longitudinal.

2. An elastomer expansion joint suitable for a simply supported T beam according to claim 1, characterized in that the beam end wedge block (2) can be matched with the beam end curve of the simply supported T beam (1).

3. The elastomer expansion joint suitable for a simply supported T beam of claim 1, wherein said support member comprises:

the bottom lining part is arranged on the lower side between the two beam-end wedge-shaped blocks (2);

and the inner side baffle (6) and the outer side baffle (8) are respectively arranged on the inner side wall and the outer side wall of the ballast retaining wall (4) of the two longitudinally adjacent simply-supported T beams (1), and a pouring space is provided for the elastomer expansion joint body (5).

4. An elastomer expansion joint suitable for simple T-beam as claimed in claim 3, wherein said bottom lining portion comprises:

the two groups of bottom lining support tables (9) are respectively arranged on the side walls of the two beam-end wedge-shaped blocks (2);

and the bottom lining plate (11) is horizontally arranged on the bottom lining support platform (9).

5. An elastomer expansion joint for simple T-beams according to claim 4, characterized in that each bottom lining support platform (9) is spaced apart by 1m and has length x width x thickness =10cm x 4cm x 1cm.

6. An elastic body expansion joint suitable for a simply supported T-shaped beam as claimed in claim 4, wherein said bottom lining (11) is an arc plate structure with a convex middle part.

7. The elastomer expansion joint suitable for simply supported T-beam as claimed in claim 4, wherein said bottom lining (11) is a 5 ‰ transverse slope installed transversely along the bridge, and the elevation of the top surface of the lateral water-retaining boss (10) corresponding to the downward slope end of the transverse slope is consistent with that of the upward slope end.

8. The elastomer expansion joint suitable for the simply supported T beam is characterized in that the ballast blocking steel plate (7) is fixedly installed on the simply supported T beam (1) through an anchoring part (3).

9. The elastomer expansion joint suitable for simply supported T-beam as claimed in claim 1,

and the end surfaces of the two beam end wedge-shaped blocks (2) which are contacted with the elastomer expansion joint body (5) are provided with coating layers.

10. The elastomer expansion joint suitable for the simply supported T-shaped beam as claimed in claim 1, wherein two beam end wedge blocks (2) are transversely arranged on the beam end surfaces of two longitudinally adjacent simply supported T-shaped beams (1) of the bridge, so that the largest beam joint is kept at 10cm or more and 15cm or less.

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