CN210031380U - Prefabricated sidewalk plate and sidewalk structure - Google Patents
Prefabricated sidewalk plate and sidewalk structure Download PDFInfo
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- CN210031380U CN210031380U CN201821865444.1U CN201821865444U CN210031380U CN 210031380 U CN210031380 U CN 210031380U CN 201821865444 U CN201821865444 U CN 201821865444U CN 210031380 U CN210031380 U CN 210031380U
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Abstract
The utility model relates to a prefabricated pavement slab and pavement structure. The prefabricated sidewalk plate comprises a top plate for pedestrians to walk and supporting plates connected below the two transverse sides of the top plate, and the supporting plates on the two sides and the top plate are enclosed to form a longitudinally-through U-shaped groove. The utility model provides a prefabricated pavement slab is provided with the backup pad, and the backup pad encloses into the U-shaped groove that vertically link up with the roof, needn't water again and build a supporting beam during site operation to the U-shaped inslot can set up the cable, and the backup pad is prefabricated can reduce on-the-spot work load on prefabricated pavement slab, improves the efficiency of construction on site, and it is comparatively convenient to be under construction.
Description
Technical Field
The utility model relates to a prefabricated pavement slab and pavement structure.
Background
In recent years, the green structure with less field operation, short construction period and less consumption and turnover material consumption is vigorously popularized in China, wherein the fully prefabricated structure technology comprises the contents of design standardization, structure lightening, component prefabrication, production factory, construction assembly and the like, well meets the current national strategic requirements, fundamentally improves the comprehensive economic and social benefits of engineering and promotes the industrial upgrading of the construction industry.
In the construction process of the bridge auxiliary structure, the traditional sidewalk plate system is a sidewalk combined structure disclosed by Chinese invention patent with the publication number of CN105803924B and publication date of 2017.09.08, the combined structure comprises an embedded part, a steel beam and a prefabricated reinforced concrete plate, wherein the embedded part is arranged in a prefabricated ballast retaining wall of a passenger-cargo collinear railway, the root part of the steel beam is fixedly connected with the embedded part, the upper surface of the steel beam is coplanar with the upper surface of the prefabricated ballast retaining wall, a sound barrier upright post is arranged above the head end of the steel beam, the prefabricated reinforced concrete plate is arranged on the upper surface of the steel beam and is divided into a vertical branch and a transverse branch, a cable groove is formed between the vertical branch and the sound barrier upright post, the upper surface of the transverse branch extends upwards, and reinforcing steel bars are reserved at the root part of the transverse branch outwards, the extending reinforcing steel bars extend into the upper portion of the prefabricated ballast retaining wall, and concrete is poured together when the cast-in-place ballast retaining wall is poured above the prefabricated ballast retaining wall. An active powder grinding concrete RPC plate covers between the top of the vertical branch and the angle steel arranged on the sound barrier stand column, and the active powder grinding concrete RPC plate is a sidewalk plate. The sidewalk composite structure adopts the prefabricated reinforced concrete plates, but a ballast blocking wall (namely a supporting beam) still needs to be poured to lay a sidewalk plate above the ballast blocking wall, and the ballast blocking wall is necessary and needs to be enclosed into a cable groove for a cable to pass through together with the sidewalk plate, so that the problems of large field workload, low construction efficiency, complex construction sequence and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a prefabricated sidewalk plate, which is used for solving the problems of large field workload, low construction efficiency and complicated construction caused by the need of cast-in-place supporting beams in advance when the existing prefabricated sidewalk plate is laid; an object of the utility model is to provide a little, the high, the convenient construction's of efficiency of construction pavement structure of site work volume.
In order to achieve the above object, the utility model discloses a prefabricated sidewalk plate's technical scheme is:
the prefabricated sidewalk slab comprises a top plate for pedestrians to walk and supporting plates connected below the two transverse sides of the top plate, wherein the supporting plates on the two sides and the top plate are enclosed to form a longitudinally-through U-shaped groove.
The utility model discloses a prefabricated pavement slab's beneficial effect is: the utility model provides a prefabricated pavement slab is provided with the backup pad, and the backup pad encloses into the U-shaped groove that vertically link up with the roof, needn't water again and build a supporting beam during site operation to the U-shaped inslot can set up the cable, and the pavement slab is whole to prefabricated pavement slab, and the backup pad is prefabricated promptly can reduce on-the-spot work load on the roof, improves on-the-spot efficiency of construction, and it is comparatively convenient to be under construction.
Further, the bottom of the supporting plate is provided with an inward-turning part extending towards the inside of the U-shaped groove, the area of the bottom surface of the prefabricated sidewalk plate can be increased through the inward-turning part, and stability is enhanced.
Furthermore, the bottom of at least one side backup pad is provided with the bulge of turning over the portion outwards, and the bulge can increase the area of guidance tape bottom surface to strengthen the support to the roof board.
Furthermore, a guardrail steel plate for installing the guardrail is pre-embedded on the top plate, and the guardrail is arranged on the guardrail steel plate during installation simply and conveniently.
In order to achieve the above object, the utility model discloses a technical scheme of pavement structure is:
pavement structure, including the pavement board face of laying, its characterized in that: the prefabricated sidewalk plate comprises a top plate for pedestrians to walk and supporting plates connected below the two transverse sides of the top plate, and the supporting plates on the two sides and the top plate are enclosed to form a longitudinally-through U-shaped groove.
The utility model discloses a pavement structure's beneficial effect is: the utility model discloses well pedestrian structure has adopted prefabricated pedestrian way board, and prefabricated pedestrian way board is provided with the backup pad, and the backup pad encloses into the U-shaped groove that vertically link up with the roof, needn't water a supporting beam again during site operation to the U-shaped inslot can set up the cable, and the backup pad is prefabricated can reduce on-the-spot work load on prefabricated pedestrian way board, improves on-the-spot efficiency of construction, and it is comparatively convenient to be under construction.
Further, the bottom of the supporting plate is provided with an inward-turning part which extends towards the inside of the U-shaped groove, the inward-turning part is in supporting fit with the pavement slab laying surface, the inward-turning part can increase the area of the bottom surface of the prefabricated pavement slab, and the stability is enhanced.
Further, the pavement structure still includes along transversely laying at least two on the pavement board surface prefabricated pavement board, be provided with vertical wet seam between two adjacent prefabricated pavement boards on horizontal, and horizontal two adjacent prefabricated pavement board's relative backup pad bottom all is provided with the bulge of outside protrusion of enstrophe portion back to oneself, the cross section of vertical wet seam is wide shape from top to bottom, the bulge can reduce the pouring volume of concrete when pouring, the support to the roof board also can be strengthened to the bulge in addition, increase and the bonding area between the pavement board surface.
Furthermore, a guardrail steel plate used for installing a guardrail is pre-embedded on a top plate of the prefabricated sidewalk plate located on the outermost side in the transverse direction, and the guardrail is arranged on the guardrail steel plate simply and conveniently during installation.
Furthermore, the sidewalk structure further comprises at least two prefabricated sidewalk plates transversely paved on the pavement plate paving surface, a longitudinal wet joint is arranged between every two adjacent transverse prefabricated sidewalk plates, reinforcing steel bars are fixed between the two transverse prefabricated sidewalk plates on the pavement plate paving surface, and the structural strength of the sidewalk can be enhanced through the longitudinal wet joint and the reinforcing steel bars in the longitudinal wet joint.
Furthermore, at least two reinforcing steel bars are longitudinally arranged and are L-shaped, one edge of each reinforcing steel bar is fixed on the pavement slab, the orientation of the other edge of each reinforcing steel bar is consistent, and the reinforcing steel bars with consistent orientation enable the structural strength of each part of the pavement to be uniform.
Drawings
Fig. 1 is a schematic view of a concrete embodiment of the sidewalk structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a left side view of FIG. 1;
FIG. 5 is a schematic view of the outer prefabricated walkway plate of FIG. 1;
FIG. 6 is a schematic view of the inner prefabricated walkway plate of FIG. 1;
description of reference numerals: 1. a top plate; 2. a support plate; 21. an inverted portion; 22. a projection; 3. reinforcing steel bars; 4. a guardrail steel plate; 5. a longitudinal wet seam; 61. a butt joint groove; 62. butting the bulges; 7. bonding mortar; 8. a pipeline; 9. a bridge deck cantilever plate; 10. and (6) hoisting holes.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a concrete embodiment of pavement structure, as shown in FIG. 1, because need pour the supporting beam who is used for supporting the pavement board at the job site usually among the prior art, nevertheless can cause that field work volume is big, work efficiency is low, the construction is complicated at a cast-in-place supporting beam. In order to overcome the defects of the prior art, the embodiment provides the sidewalk structure which is small in field workload, simple in construction and high in construction efficiency. The prefabricated sidewalk plate in the embodiment is laid on the bridge deck cantilever plate 9, and the pavement surface of the sidewalk plate is the upper surface of the bridge deck cantilever plate 9.
As shown in fig. 1, the prefabricated sidewalk slab structure in the present embodiment includes a pavement slab laying surface and two rows of prefabricated sidewalk slabs arranged side by side laid on the pavement slab laying surface, the prefabricated sidewalk slabs include a top slab 1 above which a person walks and a support plate 2 below, and the support plate 2 supports the top slab 1 at both sides of the top slab 1. Because the supporting plate 2 and the top plate 1 are prefabricated into a whole, a supporting beam does not need to be poured during site construction, the workload is reduced, the site construction efficiency is improved, and the construction process is simplified. In order to make the top plate 1 more stable, the supporting plate 2 is provided with an inward-turning part 21 at one end of the lower part contacting with the pavement slab laying surface, and the inward-turning part 21 can increase the contact area between the prefabricated pavement slab and the pavement slab laying surface, so that the prefabricated pavement slab is more stable. The supporting plates 2 and the top plate 1 positioned on the two sides form an inverted U-shaped groove, and a pipeline 8 can be laid in the U-shaped groove. The longitudinal direction in this embodiment is the extending direction of the length of the supporting plate 2, and the two rows of prefabricated sidewalk plates are transversely arranged from left to right.
As shown in fig. 2 and 3, a longitudinal wet joint 5 is provided between two prefabricated sidewalk boards horizontally arranged side by side in this embodiment, an L-shaped steel bar 3 is arranged in the longitudinal wet joint 5 at intervals of 200mm to 300mm in the longitudinal direction, and the L-shaped steel bar 3 extends along the longitudinal wet joint 5 in the horizontal direction while being vertically embedded in the pavement surface of the sidewalk boards in the longitudinal wet joint 5. The connection of two prefabricated walkway plates adjacent in the transverse direction can be made more stable by the longitudinal wet joint 5 without moving in the transverse direction.
As shown in fig. 2, the prefabricated sidewalk boards in different rows in this embodiment are adjacent left and right, protruding portions 22 facing away from the respective inward-turned portions 21 are respectively disposed on the right side supporting plate 2 of the prefabricated sidewalk board on the left side and the left side supporting plate 2 of the prefabricated sidewalk board on the right side, the two protruding portions 22 are disposed oppositely, the cross section of each protruding portion 22 is in a right trapezoid shape, the upper bottom is opposite, the lower bottom is back, the waist at right angle with the lower bottom is in contact with the pavement surface of the prefabricated sidewalk board, and the two protruding portions 22 make the longitudinal wet joint 5 in a shape with a wide upper part and a narrow lower part. The bulge 22 on the one hand reduces the amount of concrete used to fill the longitudinal wet joint 5 during on-site construction; on the other hand, the contact area between the supporting plate 2 and the pavement slab laying surface can be increased, and the supporting of the top plate 1 is enhanced. In other embodiments, where the support plate is provided thicker, the projection may not be provided.
As shown in fig. 4, the prefabricated walkway plates are provided at the top plate 1 with docking protrusions 62 and docking grooves 61 which are engaged with the docking protrusions 62 of the other prefabricated walkway plates, and two adjacent prefabricated walkway plates arranged in the longitudinal direction are docked with the docking protrusions 62 through the docking grooves 61. During construction, the butt joint bulge 62 is bonded with the butt joint groove 61 through epoxy mortar, and the field connection is convenient and reliable.
As shown in fig. 5 and 6, because the prefabricated sidewalk slab in the embodiment is added with the supporting plate 2 compared with the prior art, a certain weight is added, in order to facilitate construction and installation, the prefabricated sidewalk slab in the embodiment is further provided with four lifting holes 10 with the diameter of 30mm to 50mm on the top plate 1 for on-site lifting, and the four lifting holes 10 are respectively arranged at four corners of the top plate 1.
As shown in fig. 5, in this embodiment, a guardrail steel plate 4 is further disposed on the top surface of the prefabricated sidewalk plate located on the outermost side, which is convenient for installation of a sidewalk guardrail, and in this embodiment, two guardrail steel plates 4 are disposed on each prefabricated sidewalk plate as needed.
During construction, firstly, paving bonding mortar 7 at corresponding positions below each prefabricated sidewalk plate, and sequentially paving the prefabricated sidewalk plates along the longitudinal direction of the bridge; during installation, the cranes are connected through the hoisting holes 10 on the prefabricated sidewalk slab, and after the cranes are hoisted to corresponding positions, the hoisting holes 10 are blocked by mortar. Then, the abutting protrusions 62 and the abutting grooves 61 between two longitudinally adjacent prefabricated sidewalk plates are bonded by using epoxy mortar, and finally, the longitudinal wet joints 5 are cast by using C40 concrete. The prefabricated pavement slab in this embodiment all adopts the high-strength concrete structure, and every prefabricated pavement slab is according to thickness at 40mm to 60mm, and the width along longitudinal direction is 1000mm to 2500mm, and the length along transverse direction is 1500mm to 2500mm, does not have ordinary reinforcing bar 3 in the board, reduces the loaded down with trivial details process of 3 ligatures of reinforcing bar in the mill prefabrication, improves the quality of prefabricated product.
The utility model discloses a prefabricated assembled high-strength concrete pavement structure entirely can be in batch production standard production, the light-duty prefabrication of structure, full assembly construction etc. fine adaptation current national strategic requirement. The comprehensive economic and social benefits of the project are fundamentally improved, and the industrial upgrading of the construction industry is promoted. The prefabricated sidewalk plate can be prefabricated in large blocks, each block is large in area, the appearance of factory prefabrication is guaranteed, the overall effect is good, the forming quality of prefabricated parts is good, meanwhile, the later maintenance cost is reduced, and the prefabricated sidewalk plate has higher popularization value in municipal construction in China.
The support plate in this embodiment is attached to the end of the top plate, but in other embodiments, the support plate may not be provided at the end but rather at a relatively inner position. In other embodiments, when the bridge deck is narrow, only one row of wider prefabricated sidewalk plates can be arranged to form a sidewalk; conversely, when the bridge deck is wider, a plurality of prefabricated sidewalk plates can be arranged in the transverse direction, for example, three rows of prefabricated sidewalk plates are arranged to form a sidewalk, and the supporting plates on two sides of the prefabricated sidewalk plate positioned in the middle in the transverse direction are provided with bulges. In other embodiments, when the sidewalk is provided with only one row of prefabricated sidewalk plates in the transverse direction, a plurality of supporting plates can be arranged as required to better support the top plate, namely, the supporting plates are arranged in the U-shaped groove formed by the two outermost supporting plates and the top plate. In other embodiments, the support plate may be provided thicker, in which case the eversion may no longer be provided. The sidewalk in this embodiment is laid on the bridge floor, and in other embodiments, it may be laid on the road, street, or in the park.
The utility model discloses a concrete embodiment of people's moving walkways board, people's moving walkways board in this embodiment is the same with the moving walkways plate structure in the concrete embodiment of above-mentioned moving walkways structure, no longer gives unnecessary details.
Claims (6)
1. Pavement structure, including the pavement board face of laying, its characterized in that: the prefabricated sidewalk plate comprises a top plate for pedestrians to walk and supporting plates connected below the two transverse sides of the top plate, and the supporting plates on the two sides and the top plate are enclosed to form a longitudinally-through U-shaped groove.
2. A walkway construction according to claim 1, wherein: the bottom of the supporting plate is provided with an inward-turning part which extends towards the inside of the U-shaped groove, and the inward-turning part is matched with the pavement slab laying surface in a supporting mode.
3. A walkway construction according to claim 2, wherein: the sidewalk structure comprises at least two prefabricated sidewalk plates which are transversely paved on a pavement plate paving surface, a longitudinal wet joint is arranged between every two adjacent prefabricated sidewalk plates in the transverse direction, the bottoms of the opposite supporting plates of every two adjacent prefabricated sidewalk plates in the transverse direction are respectively provided with a protruding part which protrudes outwards and is back to the respective inward-turned part, and the cross section of the longitudinal wet joint is in a shape which is wide at the top and narrow at the bottom.
4. A walkway construction as claimed in claim 1 or 2 or 3, wherein: and guardrail steel plates for installing guardrails are pre-embedded on the top plates of the prefabricated sidewalk plates on the outermost sides in the transverse direction.
5. A walkway construction according to claim 1 or 2, wherein: the sidewalk structure comprises at least two prefabricated sidewalk plates which are transversely paved on a sidewalk plate paving surface, a longitudinal wet joint is arranged between every two adjacent prefabricated sidewalk plates in the transverse direction, and reinforcing steel bars are fixed between the two transverse prefabricated sidewalk plates on the sidewalk plate paving surface.
6. A walkway construction according to claim 5, wherein: at least two reinforcing steel bars are longitudinally arranged and are L-shaped, one edge of each reinforcing steel bar is fixed on the pavement slab, and the direction of the other edge is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865444.1U CN210031380U (en) | 2018-11-13 | 2018-11-13 | Prefabricated sidewalk plate and sidewalk structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865444.1U CN210031380U (en) | 2018-11-13 | 2018-11-13 | Prefabricated sidewalk plate and sidewalk structure |
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| CN210031380U true CN210031380U (en) | 2020-02-07 |
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| CN201821865444.1U Active CN210031380U (en) | 2018-11-13 | 2018-11-13 | Prefabricated sidewalk plate and sidewalk structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403173A (en) * | 2018-11-13 | 2019-03-01 | 郑州交通建设投资有限公司 | Prefabricated side walk slab and structure of sidewalk |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403173A (en) * | 2018-11-13 | 2019-03-01 | 郑州交通建设投资有限公司 | Prefabricated side walk slab and structure of sidewalk |
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