CN211547146U - Precast concrete road base plate of bolted connection structure - Google Patents
Precast concrete road base plate of bolted connection structure Download PDFInfo
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- CN211547146U CN211547146U CN201922381078.3U CN201922381078U CN211547146U CN 211547146 U CN211547146 U CN 211547146U CN 201922381078 U CN201922381078 U CN 201922381078U CN 211547146 U CN211547146 U CN 211547146U
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Abstract
The utility model discloses a precast concrete road base plate of a bolt connection structure, which comprises a plurality of unit road base plates with rectangular structures, wherein the unit road base plates are connected by adopting a bolt connection mode, and flexible materials are filled between two adjacent unit road base plates; the bolts comprise a first bolt and a second bolt, the first bolt is embedded in the side surface of one long side of the unit road substrate, and the second bolt is embedded in the side surface of one wide side of the unit road substrate; the unit circuit board is provided with a first hole on the same side surface embedded with the first bolt, a second hole on the other side surface of the wide side opposite to the embedded second bolt, and a first rectangular vertical hole and a second rectangular vertical hole are respectively formed on the upper board surface of the unit circuit board vertically downwards. The utility model discloses bending strength is high, toughness is good, dismantlement simple to operate to can used repeatedly many times.
Description
Technical Field
The utility model belongs to the technical field of the road construction, especially, relate to a precast concrete road base board of bolted connection structure.
Background
At present in the engineering construction of road, often need build a large amount of temporary roads, the construction of temporary road adopts cast in situ concrete more, inside no arrangement reinforcing bar, it is undulant big to pour the quality, easily destroys among the engineering construction engineering, need carry out many times to the temporary road and rebuild, influence construction period, moreover, after the temporary road finishes using, still need abolish the road surface, increase engineering cost, produce a large amount of building rubbish simultaneously, cause environmental pollution, be not conform to green construction and sustainable development's requirement. In the prior art, precast concrete plates are paved on the road surface, and due to the insecure connection, the bending strength of the concrete is low, the toughness is poor, and the precast concrete plates are easy to break and damage corners in large areas in the construction process, so that the turnover and the recycling can not be realized.
Disclosure of Invention
The utility model aims to solve the technical problem to the current situation of above-mentioned prior art, and provide a bolted connection structure's precast concrete road plate that bending strength is high, toughness is good, firm in connection, installation are dismantled conveniently and can used repeatedly many times.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
a precast concrete road base plate with a bolt connection structure comprises a plurality of unit road base plates with rectangular structures, wherein the unit road base plates are connected and assembled into a precast concrete road base which can be used for vehicles to pass through in a bolt connection mode, and a flexible material is filled between two adjacent unit road base plates; the bolts comprise a first bolt for realizing the transverse connection of the two unit circuit substrates and a second bolt for realizing the longitudinal connection of the two unit circuit substrates, the first bolt is embedded in the side surface of one long side of the unit circuit substrate, and the second bolt is embedded in the side surface of one wide side of the unit circuit substrate; the unit road base plate is provided with a first hole for the first bolt to penetrate through on the same side face pre-buried with the first bolt, a second hole for the second bolt to penetrate through is formed on the side face of the other wide side opposite to the pre-buried with the second bolt on the unit road base plate, and a first rectangular vertical hole communicated with the first hole and used for placing the nut and a second rectangular vertical hole communicated with the second hole and used for placing the nut are formed in the vertical downward direction of the upper plate face of the unit road base plate respectively.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the unit road base plate is a reinforced concrete slab formed by pouring concrete and a double-layer bidirectional reinforcing mesh which plays a role of a skeleton; reinforcing ribs for reinforcing the strength of the four corners of the unit road base plate are welded at the positions of the four corners of the double-layer bidirectional reinforcing steel bar net.
The end of the first bolt embedded in the unit road base plate and the end of the second bolt embedded in the unit road base plate are connected with the double-layer bidirectional reinforcing mesh in a welding mode.
Four transferring and transporting lifting hooks for conveniently hooking and hanging the unit road base plate are pre-buried on the unit road base plate, and each transferring and transporting lifting hook is connected with the double-layer bidirectional reinforcing mesh in a welding mode.
The edge angles of the unit road base plate are wrapped with edge protection angle steels.
The surface of the unit road substrate is uniformly distributed and formed with a plurality of anti-skid textures extending along the whole width direction of the unit road substrate.
The concrete is common concrete or fiber concrete added with steel fibers or polypropylene fibers.
The flexible material is a rubber pad.
The first bolt and the first hole are positioned on the side face of the same long edge of the unit circuit substrate, the first bolt is positioned at one end of the side face, and the first hole is positioned at the other end of the side face.
The second bolt is pre-embedded on the side surface of one wide side of the unit road substrate, and the second bolt and the first bolt are arranged close to a diagonal line; the axis of the second hole is coincident with the axis of the second bolt.
Compared with the prior art, the utility model has the advantages that:
1. the unit road base plate is prefabricated and molded by adopting fiber concrete, so that the bending strength and the toughness of the prefabricated concrete road base plate can be improved to the greatest extent, the service time and the turnover frequency of the prefabricated concrete road base plate are increased, the condition that a temporary road needs to be turned over and poured for many times in the prior art is avoided, and the cost is greatly saved;
2. double-layer bidirectional reinforcing mesh and reinforcing ribs are arranged in the unit road base plate, and edge-protecting angle steel is further coated on the periphery of the unit road base plate, so that the weak points of edges and corners of the precast concrete road base plate can be further enhanced, frequent replacement is avoided, the construction period is not influenced, and the manufacturing cost is increased.
3. The unit road bed plates are connected and assembled by adopting a mechanical connection method of bolts and nuts, so that the unit road bed plates are more firmly connected, durable, simple and convenient to install and convenient to disassemble.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of the unit substrate of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
FIG. 5 is a top view of FIG. 2;
FIG. 6 is a bottom view of FIG. 2;
fig. 7 is a schematic structural view of the double-layer bidirectional reinforcing mesh of the present invention;
fig. 8 is a schematic view of a connection structure of the bolt and the nut of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 8 are schematic structural views of the present invention.
Wherein the reference numerals are: the anti-skid road comprises an anti-skid texture F, a unit road base plate 1, a first hole 1a, a second hole 1b, a first rectangular vertical hole 1c, a second rectangular vertical hole 1d, a double-layer bidirectional reinforcing mesh 11, reinforcing ribs 12, a transferring lifting hook 13, bolts 2, a first bolt 21, a second bolt 22, nuts 3, edge protection angle steel 4 and a flexible material 5.
The utility model provides a precast concrete road base board of bolted connection structure, this precast concrete road base board can regard as temporary road to lay on the building site to make things convenient for engineering vehicle's business turn over. The precast concrete road substrate comprises a plurality of unit road substrates 1 with a rectangular structure, which may be designed into a square shape, and the unit road substrates 1 with the rectangular structure are mainly used as the expression. The unit road base plates 1 with the rectangular structures are connected in a bolt 2 connecting mode and can be assembled to form a precast concrete road base through which vehicles can pass. The unit road base plate 1 can be conveniently detached and installed through bolt connection, and the unit road base plate 1 can be recovered after construction engineering is completed, so that repeated use is realized. The unit road base plates 1 with the rectangular structures are sequentially connected through the width sides to form the total road length of the precast concrete road base plate, and the unit road base plates 1 with the rectangular structures are sequentially connected through the length sides to form the total road width of the precast concrete road base plate. In order to ensure a certain buffer space between two adjacent unit circuit substrates 1, the connection between two adjacent unit circuit substrates 1 forms a connection with certain elasticity, and a flexible material 5 is filled between two adjacent unit circuit substrates 1.
The bolt 2 of the present invention comprises a first bolt 21 and a second bolt 22. The first bolt 21 and the second bolt 22 are straight screws with identical structures. The first bolt 21 is pre-buried on the side of one long side of the unit road base plate 1 for realizing the transverse connection of two unit road base plates 1, namely the bolt is used for increasing the road width of the precast concrete road base plate. The second bolt 22 is pre-embedded on the side of one broadside of the unit road base plate 1, and is used for realizing the longitudinal connection of the two unit road base plates 1, namely the bolt is used for increasing the road length of the precast concrete road base plate. The unit circuit substrate 1 is formed with a first hole 1a on the same side surface embedded with the first bolt 21. The diameter of the first hole 1a is matched with the diameter of the first bolt 21, so that the first bolt 21 can penetrate into the first hole, and the two unit circuit substrates 1 can be conveniently and transversely connected. A second hole 1b is also formed in the unit circuit substrate 1, and the second hole 1b is formed in the side surface of the other broadside opposite to the second bolt 22. The diameter of the second hole 1b is matched with the diameter of the second bolt 22, so that the second bolt 22 can penetrate into the second hole, and the two unit road base plates 1 can be conveniently and longitudinally connected. The vertical downward first rectangle vertical hole 1c and the vertical hole 1d of second rectangle of still shaping of the last face of unit circuit base board 1, first rectangle vertical hole 1c and the vertical hole 1d of second rectangle are used for putting into the nut to conveniently adopt the instrument to screw the nut on the bolt, with two unit circuit base board 1 location connection. The first rectangular vertical hole 1c is communicated with the first hole 1a and forms an "plumb-shaped structure with the first hole 1 a. The second rectangular vertical hole 1d is communicated with the second hole 1b and forms a "-" shaped structure with the second hole 1 b.
The utility model discloses a length of unit road base board 1 is 2 meters, and width 1.5 meters, thickness are 0.15 meters to 0.3 meters, and the road width that 1 transverse connection of two unit road base boards formed is 3 meters, can satisfy the needs that various engineering vehicle transported the material.
In the embodiment, the unit road base plate 1 of the present invention is a reinforced concrete slab formed by pouring concrete and a double-layer bidirectional reinforcing mesh 11; the double-layer bidirectional reinforcing mesh 11 is positioned inside a reinforced concrete slab and mainly plays a role of a skeleton to ensure the overall mechanical strength of the unit road base plate 1. In order to further improve the mechanical strength of the four corners of the unit road base plate 1, the reinforcing ribs 12 are welded to the four corners of the double-layer bidirectional reinforcing mesh 11, and the reinforcing ribs 12 and the double-layer bidirectional reinforcing mesh 11 are both made of reinforcing steel bars.
In order to ensure the firmness of the bolts embedded in the unit road base plate 1, as shown in fig. 7, one end of the first bolt 21 embedded in the unit road base plate 1 and one end of the second bolt 22 embedded in the unit road base plate are connected with the double-layer bidirectional reinforcing mesh 11 in a welding manner.
In order to facilitate the unit road substrate 1 to be hooked by a crane or other lifting appliances, four transferring lifting hooks 13 are also embedded in the unit road substrate 1, and each transferring lifting hook 13 is connected with the double-layer bidirectional reinforcing mesh 11 in a welding mode.
In order to guarantee the life of unit road base board 1, prevent that 1 corner position of unit road base board from damaging, the utility model discloses still there is safe edge angle steel 4 in the corner cladding of unit road base board 1.
The surface of the unit road substrate 1 is evenly distributed and formed with a plurality of anti-skid grains F extending along the whole width direction of the unit road substrate 1. Since the anti-slip grain F is formed in the width direction of the unit road substrate 1, the anti-slip grain F is perpendicular to the traveling direction of the vehicle, so that the safe traveling of the vehicle can be ensured.
The concrete of the utility model is common concrete, but the best is the fiber concrete added with steel fiber or added with polypropylene fiber on the basis of common concrete. The ordinary concrete is the traditional concrete formed by adding water into cement, yellow sand and stones according to a certain proportion. The utility model discloses a fiber concrete's intensity grade is CF25 to CF40, adds the fiber concrete that has steel fibre or polypropylene fiber not only intensity height, and bending resistance is good moreover, difficult fracture.
The utility model discloses a flexible material 5 is the rubber pad.
As shown in fig. 2 and 5, the first bolt 21 and the first hole 1a of the present invention are both located on the side of the same long edge of the unit circuit board 1, and the first bolt 21 is relatively close to one end of the side, and the first hole 1a is relatively close to the other end of the side.
The second bolt 22 of the utility model is pre-embedded on the side surface of one wide side of the unit road substrate 1, and the second bolt 22 and the first bolt 21 are arranged close to the diagonal line; the axis of the second hole 1b coincides with the axis of the second bolt 22.
The utility model discloses as long as adopt bolt and nut just can be in the same place two adjacent unit road base plate 1 equipment link to can promote the speed of mating formation of road by a wide margin, and install or change also convenience very. And flexible materials are also arranged between the two adjacent unit circuit substrates 1 for filling, the flexible materials are preferably rubber pads, and the flexible materials are used for filling, so that mud can be prevented from being turned over in rainy days, and the cleanliness of a construction site is improved.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a precast concrete road bed board of bolted connection structure, includes the unit road bed board (1) of a plurality of rectangle structures, characterized by: a plurality of unit road base plates (1) are connected and assembled into a precast concrete road base which can be used for vehicles to pass through by adopting a bolt (2) connection mode, and a flexible material (5) is filled between two adjacent unit road base plates (1); the bolt (2) comprises a first bolt (21) used for realizing transverse connection of the two unit road base plates (1) and a second bolt (22) used for realizing longitudinal connection of the two unit road base plates (1), the first bolt (21) is embedded in the side surface of one long side of the unit road base plate (1), and the second bolt (22) is embedded in the side surface of one wide side of the unit road base plate (1); the unit road base plate (1) on the same side that is pre-buried to have first bolt (21) on the shaping have first hole (1a) that supplies first bolt (21) to wear to establish, on this unit road base plate (1) on with pre-buried have second bolt (22) relative side on the shaping have second hole (1b) that supplies second bolt (22) to wear to establish, the last face of unit road base plate (1) perpendicular decurrent shaping respectively have first rectangle vertical hole (1c) that intercommunication first hole (1a) is used for putting into nut (3) and intercommunication second hole (1b) are used for putting into second rectangle vertical hole (1d) of nut (3).
2. The precast concrete road bed plate of a bolt joint structure according to claim 1, wherein: the unit road base plate (1) is a reinforced concrete slab formed by pouring concrete and a double-layer bidirectional reinforcing mesh (11) which plays a role of a skeleton; reinforcing ribs (12) used for reinforcing the strength of the four corners of the unit road base plate (1) are welded on the positions of the four corners of the double-layer bidirectional reinforcing mesh (11).
3. The precast concrete road bed plate of a bolt joint structure according to claim 2, wherein: one end of the first bolt (21) embedded in the unit road base plate (1) and one end of the second bolt (22) embedded in the unit road base plate are connected with the double-layer bidirectional reinforcing mesh (11) in a welding mode.
4. The precast concrete road base plate of a bolt joint structure according to claim 3, wherein: the unit road base plate (1) pre-buried have four be used for making things convenient for the transfer lifting hook (13) of hooking unit road base plate (1), every transfer lifting hook (13) all with double-deck two-way reinforcing bar net (11) welding be connected.
5. The precast concrete road bed of a bolt joint structure according to claim 4, wherein: the edge of the unit road base plate (1) is wrapped with edge protection angle steel (4).
6. The precast concrete road bed plate of a bolt joint structure according to claim 5, wherein: the surface of the unit road substrate (1) is evenly distributed and formed with a plurality of anti-skid textures (F) extending along the whole width direction of the unit road substrate (1).
7. The precast concrete road bed plate of a bolt joint structure according to claim 6, wherein: the concrete is common concrete or fiber concrete added with steel fibers or polypropylene fibers in the common concrete.
8. The precast concrete road bed plate of a bolt joint structure according to claim 7, wherein: the flexible material (5) is a rubber pad.
9. The precast concrete road bed plate of a bolt joint structure according to claim 7, wherein: the first bolt (21) and the first hole (1a) are positioned on the side face of the same long side of the unit circuit substrate (1), the first bolt (21) is positioned at one end of the side face, and the first hole (1a) is positioned at the other end of the side face.
10. The precast concrete road bed of a bolt joint structure according to claim 9, wherein: the second bolt (22) is pre-embedded on the side face of one wide side of the unit road substrate (1), and the second bolt (22) and the first bolt (21) are arranged close to a diagonal line; the axial lead of the second hole (1b) is coincided with the axial lead of the second bolt (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381078.3U CN211547146U (en) | 2019-12-26 | 2019-12-26 | Precast concrete road base plate of bolted connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381078.3U CN211547146U (en) | 2019-12-26 | 2019-12-26 | Precast concrete road base plate of bolted connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211547146U true CN211547146U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922381078.3U Active CN211547146U (en) | 2019-12-26 | 2019-12-26 | Precast concrete road base plate of bolted connection structure |
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| Country | Link |
|---|---|
| CN (1) | CN211547146U (en) |
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2019
- 2019-12-26 CN CN201922381078.3U patent/CN211547146U/en active Active
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