CN219731793U - I-steel clamping groove type precast concrete guardrail structure - Google Patents
I-steel clamping groove type precast concrete guardrail structure Download PDFInfo
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- CN219731793U CN219731793U CN202320522578.8U CN202320522578U CN219731793U CN 219731793 U CN219731793 U CN 219731793U CN 202320522578 U CN202320522578 U CN 202320522578U CN 219731793 U CN219731793 U CN 219731793U
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- 229910000831 Steel Inorganic materials 0.000 title claims description 107
- 239000010959 steel Substances 0.000 title claims description 107
- 239000011178 precast concrete Substances 0.000 title claims description 21
- 239000004567 concrete Substances 0.000 claims abstract description 126
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims description 92
- 238000011065 in-situ storage Methods 0.000 claims description 24
- 238000010276 construction Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Abstract
The utility model discloses a prefabricated spliced concrete guardrail structure which comprises a concrete precast block, concrete stop blocks, embedded connecting pieces and splicing bolts, wherein the concrete precast block is formed by prefabricating reinforced concrete, the back of the concrete precast block is longitudinally provided with embedded grooves in a through length mode, the concrete stop blocks are of reinforced concrete structures and are perpendicular to the longitudinal through length of a foundation, the concrete stop blocks are arranged on the back of the concrete precast block and are embedded in the embedded grooves, the embedded connecting pieces are respectively arranged at the tops of two sides of the concrete precast block, the longitudinal sides of the concrete precast block are connected into a whole through the embedded connecting pieces by penetrating the splicing bolts, and the front bottom of the concrete precast block is fixedly embedded with a surface layer on the upper portion of the foundation. The scheme combines the concrete precast block with the back stop block, integrates the characteristics of simple installation and the anti-collision advantage of the concrete wall, effectively solves the field installation and application problems, has strong engineering adaptability, and has the function of repeated recycling.
Description
Technical Field
The utility model belongs to the field of traffic safety protection, and particularly relates to an I-steel clamping groove type precast concrete guardrail structure.
Background
At present, people pay more and more attention to the safety of transportation, and the highway guardrail plays a vital role as the last defense line of transportation safety.
The concrete guardrail is a common highway guardrail protection form, has the advantage of high rigidity through years of application practice, has a large safety protection allowance, is in a cast-in-situ form at present, namely, the working procedures of connecting anchoring ribs on a bridge, pouring concrete by a formwork, removing the formwork and the like are needed, the structural foundation is firmly connected, the safety protection capability is high, the construction period is long, the bridge occupation time is long, the bridge is often broken, the repeated use cannot be realized, and the large resource waste is caused.
Through continuous research of traffic safety scientific research institutions, research and development have some precast concrete guardrails that have the function of assembling, this structure is prefabricated processing standard festival section in the mill, the scene is assembled through the anchor part, this kind of mode can save the scene and invade the time on the road surface, but in order to guarantee the barrier performance, the prefabricated guardrail of assembling of present stage is connected complicacy, constructor bridge is constructed and is had great danger, and adaptability is not strong, especially in the prefabricated bridge board assembly process, there is the condition of concatenation gap or difference in height, then to the prefabricated guardrail of assembling that needs to be connected with the basis in the bottom will hardly realize assembling and linear regulation, in addition because its difficulty of connecting the anchor, reuse guardrail structure is almost impossible again.
Through the analysis and research, the inventor provides an I-steel clamping groove type precast concrete guardrail structure based on a concrete guardrail wall stress mechanism and combined with on-site actual engineering installation application, the concrete wall and a bridge are connected and anchored through components in a cast-in-situ layer, the installation influence caused by bridge assembly is avoided, meanwhile, a longitudinal assembly method is optimized, the guardrail precast installation process is simplified, high protection capability is provided, the construction period is greatly shortened, and the repeated reutilization function of the concrete guardrail is realized.
Disclosure of Invention
The utility model aims to provide an I-steel clamping groove type precast concrete guardrail structure, which solves the problems of difficult installation, complex connection and repeated recycling of the existing precast and spliced bridge concrete guardrail.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides an I-steel draw-in groove formula precast concrete guardrail structure, includes concrete prefabricated section, I-steel anchor assembly, longitudinal connection spare, concrete prefabricated section is the section through reinforced concrete prefabricated shaping, concrete prefabricated section is embedded fixedly with the basis through I-steel anchor assembly, I-steel anchor assembly embedding anchor inslot, I-steel anchor assembly is embedded in the cast-in-place layer on the bottom or the basis of concrete prefabricated section, concrete prefabricated section sits on cast-in-place layer, and the position in anchor groove corresponds the setting with I-steel anchor assembly, connect into wholly through longitudinal connection spare between the concrete prefabricated section, concrete prefabricated section front side sets up the layer of mating formation.
Further, when the I-steel anchoring piece is embedded in the bottom of the concrete precast block, the plane of the other end of the I-steel anchoring piece protrudes out of the bottom surface of the concrete precast block, the I-steel anchoring piece is arranged intermittently, an anchoring groove is arranged on a cast-in-situ layer, an opening is formed in the upper surface of the anchoring groove, embedded steel plates are arranged in a front-back mode, an installation seam is reserved in the middle of the embedded steel plates, when the concrete precast block is hoisted, the bottom I-steel anchoring piece is inserted into the anchoring groove to be fixedly connected, and meanwhile the embedded steel plates clamp the I-steel anchoring piece to prevent the I-steel anchoring piece from being separated from the anchoring groove.
Further, when the I-steel anchoring piece is embedded in the cast-in-situ layer, the plane of the other end of the I-steel anchoring piece protrudes out of the top surface of the cast-in-situ layer, the I-steel anchoring piece is continuously arranged in a through length mode, an anchoring groove is formed in the bottom of the concrete precast block, the bottom surface of the anchoring groove is opened, reinforcing plates are arranged on the other surfaces of the anchoring groove, and when the concrete precast block is hoisted, the anchoring groove is arranged on the outer side of the I-steel anchoring piece to form embedded connection.
Furthermore, the longitudinal connecting piece is in an I-steel connecting form, or a tongue-and-groove connecting form, or a bolt connecting form;
the longitudinal connecting piece is in an I-steel connecting form and comprises I-steel bolts and embedded clamping heads, the embedded clamping heads are embedded at two ends of the top of the concrete precast block, and two ends of the I-steel bolts are respectively inserted into the embedded clamping heads between the concrete precast blocks to form connection;
when the longitudinal connecting piece is in a tongue-and-groove connection mode, the longitudinal connecting piece comprises a groove and tenons, the groove and the tenons are respectively arranged at two ends of the concrete precast blocks, and when the two concrete precast blocks are connected, one end of the tenons is inserted into the groove in an aligned mode to form tongue-and-groove connection;
when the longitudinal connecting piece is in a bolt connection mode, the longitudinal connecting piece comprises a rectangular pipe and assembling bolts, wherein the rectangular pipe is embedded at two ends of the top of the concrete precast block, clamping grooves are formed in two ends of the top of the concrete precast block, and the rectangular pipe is fixed in the clamping grooves.
Further, the embedded clamping head, the rectangular pipe, the reinforcing plate and the concrete precast block are anchored through embedded ribs, and the embedded ribs are anchored inside the concrete precast block.
Furthermore, the front side slope surface form of the concrete precast block comprises an F-shaped slope surface, a reinforced slope surface and a single slope surface.
Further, the top surface of the concrete precast block is provided with a hoisting ring, the bottom of the hoisting ring is anchored in the concrete precast block, and the hoisting ring is made of round steel.
Further, the thickness of the cast-in-situ layer varies according to the overall uniform elevation.
Further, the thin edge structure of the groove on the concrete precast block is internally provided with a construction rib, and the tenon protrudes out of the structure of the end face of the concrete precast block and is internally provided with the construction rib.
Further, the concrete precast block is provided with a landscape hole, the landscape hole penetrates through the cross section of the concrete precast block, and the cross section of the landscape hole comprises an ellipse or a semi-ellipse.
After the technical scheme is adopted, the utility model has the following beneficial effects:
(1) The reinforced concrete precast blocks are formed by connecting a foundation and longitudinally connecting the foundation and longitudinally forming a whole, so that the high protection capability of the bridge guardrail is met;
(2) The guardrail foundation connection is realized in the cast-in-situ layer, the construction is convenient, and the installation danger of constructors is effectively reduced;
(3) The guardrail foundation connection is realized in the cast-in-situ layer, so that the defects of assembly of the prefabricated bridge are avoided, and the cast-in-situ layer has the characteristic of strong universality;
(4) The industrialized batch production is realized, and the rapid assembly construction process of the prefabricated assembled concrete guardrail is realized;
(5) Meets the repeated recycling requirement of the concrete guardrail, reduces the resource waste and reduces the engineering cost.
Drawings
For a clearer description of the technical solutions of the present utility model, the following brief description will be given of the drawings that are used in the embodiments:
FIG. 1 is a schematic view showing a cross section of an embodiment 1 of the present utility model;
FIG. 2 is an elevation illustration of embodiment 1 of the present utility model;
FIG. 3 is a perspective view showing a concrete prefabricated section according to embodiment 1 of the present utility model;
FIG. 4 is a diagram showing an example of a basic plane of embodiment 1 of the present utility model;
FIG. 5 is a view showing an example of a longitudinal joint position plane according to embodiment 1 of the present utility model;
FIG. 6 is a perspective view of a joist bolt according to embodiment 1 of the present utility model;
FIG. 7 is a schematic view showing a cross section of an embodiment 2 of the present utility model;
FIG. 8 is an elevation view of the embodiment 2 of the present utility model;
FIG. 9 is a perspective view showing a concrete prefabricated section according to embodiment 2 of the present utility model;
FIG. 10 is a view showing an example of a longitudinal joint position plane according to embodiment 2 of the present utility model;
FIG. 11 is a perspective view showing a rectangular tube according to embodiment 2 of the present utility model;
FIG. 12 is a schematic view showing a cross-section of an embodiment 3 of the present utility model;
fig. 13 is a view showing an example of a longitudinal joint position plane according to embodiment 3 of the present utility model.
Reference numerals
1. A concrete precast block; 2. an I-steel anchoring piece; 3. a foundation; 4. an anchor groove; 5. a cast-in-situ layer; 6. paving layers; 7. a mounting seam; 8. embedding a steel plate; 9. an I-shaped steel bolt; 10. embedding a clamping head; 11. a groove; 12. a tenon; 13. a rectangular tube; 14. assembling bolts; 15. a clamping groove; 16. pre-burying ribs; 17. a hoisting ring; 18. a reinforcing plate; 19. and a landscape hole.
Detailed Description
The present utility model will be described in further detail with reference to examples and embodiments. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and that all the techniques implemented based on the present utility model are within the scope of the present utility model.
Fig. 1 to 3 are diagrams showing an example of a structure of an i-steel clamping groove type precast concrete guardrail according to embodiment 1 of the present utility model. The concrete precast block 1 is a segment prefabricated and formed through reinforced concrete, the concrete precast block 1 is fixedly connected with a foundation 3 through the I-steel anchoring piece 2, the I-steel anchoring piece 2 is embedded into an anchoring groove 4, the I-steel anchoring piece 2 is embedded into the bottom of the concrete precast block 1, the concrete precast block 1 is arranged on a cast-in-situ layer 5, the position of the anchoring groove 4 is arranged corresponding to the I-steel anchoring piece 2, the concrete precast blocks 1 are connected into a whole through the longitudinal connecting piece, and a paving layer 6 is arranged on the front side of the concrete precast block 1.
As shown in fig. 4, when the i-steel anchoring member 2 is pre-buried in the bottom of the concrete precast block 1, the plane of the other end of the i-steel anchoring member 2 protrudes out of the bottom surface of the concrete precast block 1, the i-steel anchoring member 2 is discontinuously arranged, the cast-in-situ layer 5 is provided with an anchoring groove 4, an opening is formed in the upper surface of the anchoring groove 4, pre-buried steel plates 8 are arranged in front of and behind the anchoring groove, and an installation seam 7 is reserved in the middle of the anchoring groove, when the concrete precast block 1 is hoisted, the bottom i-steel anchoring member 2 is inserted into the anchoring groove 4 for fixedly connecting, and meanwhile, the i-steel anchoring member 2 is clamped by the pre-buried steel plates 8, so that the i-steel anchoring member 2 is prevented from being separated from the anchoring groove 4.
As shown in fig. 5-6, the longitudinal connecting piece is in an I-steel connecting form and comprises I-steel bolts 9 and embedded clamping heads 10, the embedded clamping heads 10 are embedded at two ends of the top of the concrete precast block 1, and two ends of the I-steel bolts 9 are respectively inserted into the embedded clamping heads 10 between the concrete precast blocks 1 to form connection;
the embedded clamping head 10 is anchored with the concrete precast block 1 through the embedded ribs 16, and the embedded ribs 16 are anchored in the concrete precast block 1.
The top surface of the concrete precast block 1 is provided with a lifting ring 17, the bottom of the lifting ring 17 is anchored in the concrete precast block 1, and the lifting ring 17 is made of round steel.
The thickness of the cast-in-situ layer 5 varies according to the overall uniform elevation.
The concrete precast block 1 is provided with a landscape hole 19, the landscape hole 19 penetrates through the cross section of the concrete precast block 1, and the cross section of the landscape hole 19 comprises an ellipse.
Fig. 7-9 are diagrams showing an example of a structure of an i-steel clamping groove type precast concrete guardrail according to embodiment 2 of the present utility model. The concrete precast block 1 is a segment prefabricated and formed through reinforced concrete, the concrete precast block 1 is fixedly connected with a foundation 3 through the I-steel anchoring piece 2, the I-steel anchoring piece 2 is embedded into an anchoring groove 4, the I-steel anchoring piece 2 is embedded into the bottom of the concrete precast block 1, the concrete precast block 1 is arranged on a cast-in-situ layer 5, the position of the anchoring groove 4 is arranged corresponding to the I-steel anchoring piece 2, the concrete precast blocks 1 are connected into a whole through the longitudinal connecting piece, and a paving layer 6 is arranged on the front side of the concrete precast block 1.
When the I-steel anchoring piece 2 is pre-buried in the cast-in-situ layer 5, the plane of the other end of the I-steel anchoring piece 2 protrudes out of the top surface of the cast-in-situ layer 5, the I-steel anchoring piece 2 is continuously arranged in a full length mode, an anchoring groove 4 is formed in the bottom of the concrete precast block 1, the bottom surface of the anchoring groove 4 is opened, reinforcing plates 18 are arranged on other surfaces of the anchoring groove 4, and when the concrete precast block 1 is hoisted, the anchoring groove 4 is arranged on the outer side of the I-steel anchoring piece 2 to form embedded connection.
As shown in fig. 10-11, when the longitudinal connecting piece is in a bolt connection mode, the longitudinal connecting piece comprises a rectangular pipe 13 and an assembling bolt 14, wherein the rectangular pipe 13 is pre-buried at two ends of the top of the concrete precast block 1, clamping grooves 15 are formed in two ends of the top of the concrete precast block 1, and the rectangular pipe 13 is fixed in the clamping grooves 15.
The rectangular pipes 13, the reinforcing plates 18 and the concrete precast block 1 are anchored through the embedded ribs 16, and the embedded ribs 16 are anchored inside the concrete precast block 1.
The top surface of the concrete precast block 1 is provided with a lifting ring 17, the bottom of the lifting ring 17 is anchored in the concrete precast block 1, and the lifting ring 17 is made of round steel.
The thickness of the cast-in-situ layer 5 varies according to the overall uniform elevation.
The concrete precast block 1 is provided with a landscape hole 19, the landscape hole 19 penetrates through the cross section of the concrete precast block 1, and the cross section of the landscape hole 19 comprises a semi-ellipse.
Fig. 12 is a diagram showing an example of a structure of an i-steel clamping groove type precast concrete guardrail according to embodiment 3 of the present utility model. The concrete precast block 1 is a segment prefabricated and formed through reinforced concrete, the concrete precast block 1 is fixedly connected with a foundation 3 through the I-steel anchoring piece 2, the I-steel anchoring piece 2 is embedded into an anchoring groove 4, the I-steel anchoring piece 2 is embedded into the bottom of the concrete precast block 1, the concrete precast block 1 is arranged on a cast-in-situ layer 5, the position of the anchoring groove 4 is arranged corresponding to the I-steel anchoring piece 2, the concrete precast blocks 1 are connected into a whole through the longitudinal connecting piece, and a paving layer 6 is arranged on the front side of the concrete precast block 1.
When the I-steel anchoring piece 2 is embedded in the bottom of the concrete precast block 1, the plane of the other end of the I-steel anchoring piece 2 protrudes out of the bottom surface of the concrete precast block 1, the I-steel anchoring piece 2 is discontinuously arranged, the cast-in-situ layer 5 is provided with an anchoring groove 4, an opening is formed in the upper surface of the anchoring groove 4, an embedded steel plate 8 is arranged, the embedded steel plate 8 is divided into a front piece and a rear piece, an installation seam 7 is reserved in the middle of the embedded steel plate 8, when the concrete precast block 1 is hoisted, the bottom I-steel anchoring piece 2 is inserted into the anchoring groove 4 for embedding connection, and meanwhile, the embedded steel plate 8 clamps the I-steel anchoring piece 2 to prevent the I-steel anchoring piece 2 from being separated from the anchoring groove 4.
As shown in fig. 13, when the longitudinal connecting member is in a tongue-and-groove connection mode, the longitudinal connecting member comprises a groove 11 and a tenon 12, the groove 11 and the tenon 12 are respectively arranged at two ends of the concrete precast blocks 1, and when the concrete precast blocks 1 of each two are connected, the tenon 12 at one end is aligned with the groove 11 and inserted into the groove to form tongue-and-groove connection.
The top surface of the concrete precast block 1 is provided with a lifting ring 17, the bottom of the lifting ring 17 is anchored in the concrete precast block 1, and the lifting ring 17 is made of round steel.
The thickness of the cast-in-situ layer 5 varies according to the overall uniform elevation.
The structure of the thin edge of the groove 11 on the precast concrete block 1 is internally provided with a construction rib, and the tenon 12 protrudes out of the structure of the end face of the precast concrete block 1 and is internally provided with the construction rib.
The concrete precast block 1 is provided with a landscape hole 19, the landscape hole 19 penetrates through the cross section of the concrete precast block 1, and the cross section of the landscape hole 19 comprises an ellipse.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (9)
1. The utility model provides an I-steel draw-in groove formula precast concrete guardrail structure, includes concrete prefabricated section (1), I-steel anchor assembly (2), longitudinal connecting piece, its characterized in that: the concrete precast block (1) is a segment prefabricated and formed through reinforced concrete, the concrete precast block (1) is fixedly connected with a foundation (3) in a built-in mode through an I-steel anchoring piece (2), the I-steel anchoring piece (2) is embedded into an anchoring groove (4), the I-steel anchoring piece (2) is embedded into a cast-in-place layer (5) at the bottom of the concrete precast block (1) or above the foundation (3), the concrete precast block (1) is seated on the cast-in-place layer (5), the position of the anchoring groove (4) is correspondingly arranged with the I-steel anchoring piece (2), the concrete precast block (1) is integrally connected through a longitudinal connecting piece, and a paving layer (6) is arranged at the front side of the concrete precast block (1).
2. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: when the I-steel anchoring piece (2) is embedded at the bottom of the concrete precast block (1), the plane of the other end of the I-steel anchoring piece (2) protrudes out of the bottom surface of the concrete precast block (1), the I-steel anchoring piece (2) is discontinuously arranged, the cast-in-situ layer (5) is provided with an anchoring groove (4), an opening is formed in the upper surface of the anchoring groove (4) and an embedded steel plate (8) is arranged, the embedded steel plate (8) is divided into a front piece and a rear piece, an installation seam (7) is reserved in the middle, when the concrete precast block (1) is hoisted, the bottom I-steel anchoring piece (2) is inserted into the anchoring groove (4) for embedding connection, and meanwhile, the embedded steel plate (8) clamps the I-steel anchoring piece (2) to prevent the I-steel anchoring piece (2) from being separated from the anchoring groove (4);
when the I-steel anchoring piece (2) is embedded in the cast-in-situ layer (5), the plane of the other end of the I-steel anchoring piece (2) protrudes out of the top surface of the cast-in-situ layer (5), the I-steel anchoring piece (2) is continuously arranged in a through length mode, an anchoring groove (4) is formed in the bottom of the concrete precast block (1), the bottom surface of the anchoring groove (4) is opened, reinforcing plates (18) are arranged on other surfaces of the anchoring groove (4), and when the concrete precast block (1) is hoisted, the anchoring groove (4) is arranged on the outer side of the I-steel anchoring piece (2) to form embedded connection.
3. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: the longitudinal connecting piece is in an I-steel connecting form, or a tongue-and-groove connecting form, or a bolt connecting form;
the longitudinal connecting piece is in an I-steel connecting form and comprises I-steel bolts (9) and embedded clamping heads (10), the embedded clamping heads (10) are embedded at two ends of the top of the concrete precast block (1), and two ends of the I-steel bolts (9) are respectively inserted into the embedded clamping heads (10) between the concrete precast blocks (1) to form connection;
when the longitudinal connecting piece is in a tongue-and-groove connection mode, the longitudinal connecting piece comprises a groove (11) and tenons (12), the groove (11) and the tenons (12) are respectively arranged at two ends of the concrete precast blocks (1), and when the two concrete precast blocks (1) are connected, one end of the tenons (12) is aligned with the groove (11) and inserted into the groove to form tongue-and-groove connection;
when the longitudinal connecting piece is in a bolt connection mode, the longitudinal connecting piece comprises a rectangular pipe (13) and assembling bolts (14), wherein the rectangular pipe (13) is pre-buried at two ends of the top of the concrete precast block (1), clamping grooves (15) are formed in two ends of the top of the concrete precast block (1), and the rectangular pipe (13) is fixed in the clamping grooves (15).
4. A i-steel clamping groove type precast concrete guardrail structure according to claim 3, characterized in that: the embedded clamping head (10), the rectangular pipe (13) and the reinforcing plate (18) are anchored with the concrete precast block (1) through embedded ribs (16), and the embedded ribs (16) are anchored inside the concrete precast block (1).
5. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: the front side slope surface form of the concrete precast block (1) comprises an F-shaped slope surface, a reinforced slope surface and a single slope surface.
6. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: the top surface of the concrete precast block (1) is provided with a hoisting ring (17), the bottom of the hoisting ring (17) is anchored in the concrete precast block (1), and the hoisting ring (17) is made of round steel.
7. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: the thickness of the cast-in-situ layer (5) is changed according to the overall uniform elevation.
8. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: the thin edge structure of the upper groove (11) of the concrete precast block (1) is internally provided with a construction rib, and the tenon (12) protrudes out of the structure of the end face of the concrete precast block (1) and is internally provided with the construction rib.
9. The i-steel clamping groove type precast concrete guardrail structure according to claim 1, wherein: the concrete precast block (1) is provided with a landscape hole (19), the landscape hole (19) penetrates through the cross section of the concrete precast block (1), and the cross section of the landscape hole (19) comprises an ellipse or a semi-ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320522578.8U CN219731793U (en) | 2023-03-17 | 2023-03-17 | I-steel clamping groove type precast concrete guardrail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320522578.8U CN219731793U (en) | 2023-03-17 | 2023-03-17 | I-steel clamping groove type precast concrete guardrail structure |
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| Publication Number | Publication Date |
|---|---|
| CN219731793U true CN219731793U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320522578.8U Active CN219731793U (en) | 2023-03-17 | 2023-03-17 | I-steel clamping groove type precast concrete guardrail structure |
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| Country | Link |
|---|---|
| CN (1) | CN219731793U (en) |
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