CN216864796U

CN216864796U - Prefabricated bridge support base stone

Info

Publication number: CN216864796U
Application number: CN202220017444.6U
Authority: CN
Inventors: 范思轶; 于培龙; 颜刚; 顾典科; 王沁; 童优良; 熊全裕; 张占龙
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-07-01
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a prefabricated bridge support base cushion stone which comprises a steel plate, a sulfur concrete cushion stone and a plurality of anchoring parts, wherein a steel bar framework and a heating wire are pre-buried in the sulfur concrete cushion stone, the steel plate is half buried at the top of the sulfur concrete cushion stone and is fixedly connected with the steel bar framework, a vibrating hole is formed in the steel plate, an exhaust hole penetrates through the sulfur concrete cushion stone, the vibrating hole and the exhaust hole are correspondingly arranged, the anchoring parts penetrate through the steel plate and the sulfur concrete cushion stone and are in threaded connection with the steel plate, an electric connector is arranged on the outer surface of the sulfur concrete cushion stone, and the heating wire is connected with the electric connector. This prefabricated bridge beam supports stone setting easy dismounting, can improve efficiency of construction and construction quality.

Description

Prefabricated bridge support base stone

Technical Field

The utility model relates to the technical field of support base cushion stones used in bridge construction, in particular to a prefabricated bridge support base cushion stone.

Background

Traditional bridge beam supports stone setting construction needs to bury the pre-buried reinforcing bar of lower part when the bent cap construction, and the bent cap is pour and is carried out ligature, the template installation of stone setting reinforcing bar at the scene after accomplishing, simultaneously with pre-buried steel sheet and the pre-buried reinforcing bar welded fastening of lower part, pours the stone setting concrete again, treats that the concrete strength reaches the back, demolishs the template, carries out the installation of process support on next step again.

Because the bridge support base stone is used as the foundation structure of the bridge support, the bridge support base stone has the functions of adjusting the height and the gradient of the support base and transferring the upper load of the bridge to the lower foundation of the bridge, so the support base stone usually bears larger local concentrated load, the support base stone is usually designed by adopting high-strength concrete and intensive reinforcing bars, the size is small, the internal structure is complex, and the requirement on the process level in the construction process is higher.

The existing bridge support base cushion stone has the following defects: firstly, the support base cushion stone has the function of adjusting the elevation of the support base, so that the elevation of the finished top surface (namely the top surface of the embedded steel plate) has extremely high precision requirement, the elevation control of the embedded steel plate is extremely difficult on site, the elevation control is required to be carried out when the embedded steel bar at the lower part is installed, and the error caused by the misoperation of workers on site is very easily generated when the embedded steel plate is welded and installed subsequently; secondly, the support base cushion stone has small volume, the internal reinforcing bars are very dense, and the problems of incompact concrete inside, reduced concrete strength, poor surface quality and the like caused by the fact that the vibration of the cushion stone concrete is not in place due to the influence of conditions during field construction affect the structural safety and the use safety of the bridge; thirdly, construction is generally carried out after the bridge bent cap is finished, and the phenomenon of pad slippage can occur due to the lack of effective combination measures between the pad and the bent cap; fourthly, the traditional support base cushion stone is generally manufactured and constructed on site, working procedures such as binding of reinforcing steel bars and installation of templates need to be carried out, equal-strength time of concrete needs to be reserved, the construction process is complex, and the construction period is long.

In addition, when the phenomenon such as damage or crack of the pad stone occurs in the using process of the bridge, the need of replacing the support and the pad stone cannot be avoided. The traditional method is that a jack is used for jacking a beam body, a physical method is adopted for breaking the pad stone, the pad stone needs to be cast in situ again, the construction is difficult, the required time is long, and the quality is difficult to ensure due to limited operation space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a prefabricated bridge support pad stone which is convenient to disassemble and assemble and can improve the construction efficiency and the construction quality.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a prefabricated bridge beam supports pad stone, includes steel sheet, sulphur concrete pad stone and a plurality of anchor assembly, pre-buried skeleton of steel and heating wire in the sulphur concrete pad stone, the steel sheet half bury at the top of sulphur concrete pad stone and with skeleton fixed connection, locate the hole of vibrating on the steel sheet, it has the exhaust hole to run through in the sulphur concrete pad stone, the hole of vibrating corresponds the setting with the exhaust hole, anchor assembly wear to locate in steel sheet and sulphur concrete pad stone, and with steel sheet threaded connection, the surface of sulphur concrete pad stone is equipped with connects the electrical head, the heating wire connects the electrical head with to be connected.

As a further improvement of the above technical solution:

the bottom surface of the sulfur concrete cushion stone is a concrete rough surface.

The one end that anchor assembly stretches out below the sulphur concrete cushion stone is equipped with the screw thread post, stretches out to the one end of steel sheet top is equipped with twists the portion of twisting.

And threaded holes are formed in the positions, corresponding to the anchoring parts, of the steel plate, and the top ends of the anchoring parts penetrate through the threaded holes and are in threaded connection with the threaded holes.

The sulfur concrete cushion stone is provided with a through hole at the position corresponding to each anchoring piece, and the anchoring pieces are arranged in the through holes in a penetrating way.

The steel plate is square.

The number of the anchoring parts is four, and each anchoring part is respectively positioned at four corners of the steel plate.

The sulfur concrete cushion stone is cubic.

The vibrating hole and the exhaust hole are both provided with a plurality of holes.

The vibrating holes are distributed at intervals around the center of the steel plate, and the exhaust holes are distributed at intervals around the center of the sulfur concrete cushion.

Compared with the prior art, the utility model has the advantages that:

the prefabricated bridge support base cushion stone is prefabricated before construction, all the prefabricated bridge support base cushion stones are manufactured in a factory, the prefabricated bridge support base cushion stone has the characteristics of intensification and standardization, the welding of a steel reinforcement framework is performed in advance, concrete cracking caused by field welding is prevented, the precision of size control is higher, compared with field construction errors, the prefabricated bridge support base cushion stone can be obviously reduced, and the overall quality of the prefabricated bridge support base cushion stone can be ensured. The sulfur concrete adopted by the sulfur concrete cushion has high strength, corrosion resistance and low melting point, and the electric heating wire is embedded inside the cushion and is electrified and heated when the cushion needs to be removed, so that the concrete is softened and melted, and the removal work can be conveniently carried out; meanwhile, the prefabricated sulfur concrete cushion stone can be installed and fixed through the anchoring parts, compared with the cast-in-place manufacturing, the prefabricated bridge support cushion stone is fast, convenient and more guaranteed in quality, and the quick replacement of the prefabricated bridge support cushion stone is realized. The setting in hole and the exhaust hole of vibrating, the quality of prefabricated bridge support bed stone below bridge cover beam concrete is guaranteed to the inside discharge of bubble of the in-process concrete that vibrates and vibrates that inserts of vibrator when the installation of prefabricated bridge support bed stone is accomplished back below apron concrete placement. This prefabricated bridge beam supports stone setting easy dismounting and can improve efficiency of construction and construction quality.

Drawings

FIG. 1 is a schematic perspective view of a prefabricated bridge support pad according to the present invention.

FIG. 2 is a first schematic sectional view of the prefabricated bridge pad according to the present invention.

FIG. 3 is a schematic sectional view of the prefabricated bridge pad according to the present invention.

The reference numerals in the figures denote:

1. a steel plate; 11. a threaded hole; 2. sulfur concrete bedding; 21. an exhaust hole; 22. concrete rough surface; 3. an anchoring member; 31. a threaded post; 32. a screwing part; 4. vibrating the hole; 5. a steel reinforcement cage; 6. an electric heating wire; 7. connecting a power head; 8. a through hole.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and specific examples.

Fig. 1 to 3 show an embodiment of the prefabricated bridge pad of the present invention, the prefabricated bridge pad includes a steel plate 1, a sulfur concrete pad 2 and a plurality of anchoring members 3, a steel skeleton 5 and a heating wire 6 are pre-embedded in the sulfur concrete pad 2, the steel plate 1 is half-embedded at the top of the sulfur concrete pad 2 and is fixedly connected with the steel skeleton 5, a vibrating hole 4 is arranged on the steel plate 1, an exhaust hole 21 penetrates through the sulfur concrete pad 2, the vibrating hole 4 is arranged corresponding to the exhaust hole 21, the anchoring members 3 are arranged in the steel plate 1 and the sulfur concrete pad 2 and are in threaded connection with the steel plate 1, an electrical connector 7 is arranged on the outer surface of the sulfur concrete pad 2, and the heating wire 6 is connected with the electrical connector 7.

Specifically, steel sheet 1 is partly buried at the top of sulphur concrete base stone 2, and pre-buried degree of depth is 1/2 of steel sheet 1 thickness promptly, and steel sheet 1 and framework of steel reinforcement 5 weld. The sulfur concrete cushion stone 2 is formed by prefabricating and pouring sulfur concrete, an intensive steel reinforcement framework 5 is arranged in the sulfur concrete cushion stone, and an electric heating wire 6 is embedded in the sulfur concrete cushion stone. The sulfur concrete has the corrosion-resistant characteristic of high strength, and the melting point is lower between 200 ~ 260 ℃, through giving pre-buried heating wire 6 ohmic heating, can make sulfur concrete curbstone 2 become soft melting, realizes quick demolising.

Anchor assembly

3 and 1 threaded connection of steel sheet, through twist steel sheet 1, sulphur concrete pad stone 2 and during the installation the bolt hole of reserving on the bent cap of below installs fixedly for be connected with the anchor of bridge bent cap, can realize installing sulphur concrete pad stone 2 fast on the bent cap of bridge, simple to operate.

This prefabricated bridge beam supports stone underlay makes in advance before the construction, and all makings are all gone on in the mill, have intensification, standardized characteristics, and the welding of framework of steel reinforcement 5 is gone on in advance, prevents the fracture of the concrete that the field weld leads to, and is bigger to size control's precision, compares the field construction error and can show the reduction, can guarantee prefabricated bridge beam supports stone underlay's overall quality. The sulfur concrete adopted by the sulfur concrete cushion 2 has high strength, corrosion resistance and low melting point, and the electric heating wire 6 is embedded inside the cushion and is electrified and heated when the cushion needs to be removed, so that the concrete is softened and melted, and the removal work can be conveniently carried out; meanwhile, the prefabricated sulfur concrete cushion stone 2 can be installed and fixed through the anchoring parts 3, compared with the cast-in-place manufacturing, the quick replacement of the prefabricated bridge support cushion stone is quick and convenient, and the quality is more guaranteed. The setting in hole 4 and exhaust hole 21 vibrates, and the quality of prefabricated bridge support bed stone below bridge cover beam concrete is guaranteed to the inside discharge of bubble of the in-process concrete that vibrates and vibrates that inserts of the vibrator when the installation of prefabricated bridge support bed stone is accomplished back below apron concrete placement. This prefabricated bridge beam supports stone setting easy dismounting and can improve efficiency of construction and construction quality.

In this embodiment, the bottom surface of the sulfur concrete shim 2 is a concrete matte 22. The anti-sliding capacity of the bottom and the subsequent cover beam after being installed on the cover beam and combined with the cover beam is increased. During this prefabricated bridge beam supports pad stone installation, can be with the highly pre-buried bridge capping beam concrete of going into the bottom of bottom 3 ~ 5cm to guarantee the combination of sulphur concrete pad stone 2 and capping beam, prevent sliding of sulphur concrete pad stone 2 in superstructure installation and use in the future.

In this embodiment, the end of the anchoring member 3 extending below the sulfur concrete shim 2 is provided with a threaded post 31, and the end extending above the steel plate 1 is provided with a screwing part 32. Bolt hole connection who reserves on the bent cap when being convenient for with follow-up installation. The threaded column 31 can be connected in the bolt hole reserved in the cover beam through screwing the screwing part 32, and the prefabricated bridge support base cushion is fixedly installed. The threaded post 31 is integrally formed with the anchor member 3.

In this embodiment, as shown in fig. 2 and 3, threaded holes 11 are provided at positions of the steel plate 1 corresponding to the respective anchoring members 3, and the top ends of the anchoring members 3 are inserted into the threaded holes 11 and are in threaded connection with the threaded holes 11. In other embodiments, the steel plate 1 is provided with a smooth hole at a position corresponding to each anchoring member 3, the top end of the anchoring member 3 is inserted into the smooth hole, and the screwing portion 32 is larger than the smooth hole.

In this embodiment, the through holes 8 are formed at positions of the sulfur concrete curbstone 2 corresponding to the anchoring members 3, and the anchoring members 3 are inserted into the through holes 8. The through-hole 8 has a larger diameter than the anchor 3.

In this embodiment, the steel plate 1 has a square shape. The number of the anchoring parts 3 is four, and each anchoring part 3 is respectively positioned at the four corners of the steel plate 1. The sulfur concrete cushion 2 is cubic.

In this embodiment, a plurality of vibrating holes 4 and a plurality of air discharging holes 21 are provided. The vibrating hole 4 and the exhaust hole 21 are round holes. The number and the arrangement positions of the vibrating holes 4 and the exhaust holes 21 need to be determined by considering the size of the sulfur concrete cushion stones 2 and the action range of the vibrating rods, the forming mode is that steel pipes are pre-embedded before the sulfur concrete cushion stones 2 are poured, and the steel pipes are pulled out after the pouring is finished.

In this embodiment, the vibrating holes 4 are spaced around the center of the steel plate 1, and the exhaust holes 21 are spaced around the center of the sulfur concrete pad 2.

This prefabricated bridge beam supports pad stone can a plurality of while in mill's processing production, transports to the direct simultaneous installation in scene after the bent cap reinforcing bar is accomplished to the completion after the completion, and the bent cap is pour and can be carried out going on of process on next step after accomplishing, and the engineering time of very big saving has reduced the construction degree of difficulty.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a prefabricated bridge beam supports stone pad which characterized in that: including steel sheet (1), sulphur concrete pad stone (2) and a plurality of anchor assembly (3), pre-buried skeleton of steel (5) and heating wire (6) have in sulphur concrete pad stone (2), steel sheet (1) partly bury at the top of sulphur concrete pad stone (2) and with skeleton of steel (5) fixed connection, locate hole (4) that vibrate on steel sheet (1), it has exhaust hole (21) to run through in sulphur concrete pad stone (2), hole (4) that vibrate correspond the setting with exhaust hole (21), anchor assembly (3) are worn to locate in steel sheet (1) and sulphur concrete pad stone (2), and with steel sheet (1) threaded connection, the surface of sulphur concrete pad stone (2) is equipped with electrical connector (7), heating wire (6) are connected with electrical connector (7).

2. The prefabricated bridge bearing pad stone of claim 1, wherein: the bottom surface of the sulfur concrete cushion stone (2) is a concrete rough surface (22).

3. The prefabricated bridge bearing pad stone of claim 1, wherein: anchor member (3) stretch out to the one end of sulphur concrete pad stone (2) below is equipped with screw thread post (31), stretch out to the one end of steel sheet (1) top is equipped with revolves soon portion (32).

4. The prefabricated bridge bearing pad stone of claim 1, wherein: the steel plate (1) is provided with a threaded hole (11) at a position corresponding to each anchoring piece (3), and the top end of each anchoring piece (3) penetrates through the threaded hole (11) and is in threaded connection with the threaded hole (11).

5. The prefabricated bridge bearing pad stone of claim 4, wherein: all be equipped with perforating hole (8) on the position that sulphur concrete curbstone (2) and each anchor assembly (3) correspond, anchor assembly (3) are worn to locate in perforating hole (8).

6. The prefabricated bridge deck stone pad of any one of claims 1 to 5, wherein: the steel plate (1) is square.

7. The prefabricated bridge bearing pad stone of claim 6, wherein: the number of the anchoring pieces (3) is four, and each anchoring piece (3) is located at the four corners of the steel plate (1).

8. The prefabricated bridge bearing pad stone of claim 6, wherein: the sulfur concrete cushion stone (2) is cubic.

9. The prefabricated bridge bearing pad stone of any one of claims 1 to 5, wherein: the vibrating holes (4) and the exhaust holes (21) are provided in plurality.

10. The prefabricated bridge deck pad of claim 9, wherein: the vibrating holes (4) are distributed at intervals around the center of the steel plate (1), and the exhaust holes (21) are distributed at intervals around the center of the sulfur concrete cushion stone (2).