CN216689183U - Seat type reinforced concrete protective guardrail for highway subgrade section - Google Patents
Seat type reinforced concrete protective guardrail for highway subgrade section Download PDFInfo
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- CN216689183U CN216689183U CN202120759686.8U CN202120759686U CN216689183U CN 216689183 U CN216689183 U CN 216689183U CN 202120759686 U CN202120759686 U CN 202120759686U CN 216689183 U CN216689183 U CN 216689183U
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- guardrail
- seat
- hot
- galvanized steel
- collision wall
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model provides a seat type reinforced concrete protective guardrail for a highway subgrade section, which comprises an upper anti-collision wall and a lower seat type guardrail foundation which are arranged from top to bottom, wherein the upper anti-collision wall and the lower seat type guardrail foundation are integrally formed; the basic "L" type of inverting of lower part seat formula guardrail, the long limit level setting on lower part seat formula guardrail basis, and the long limit on lower part seat formula guardrail basis is connected with upper portion anticollision wall, and the minor face on lower part seat formula guardrail basis sets up down, and the minor face on lower part seat formula guardrail basis sets up the inboard at the highway. The utility model has reliable basic stability, good anti-overturning performance and good anti-collision performance.
Description
Technical Field
The utility model relates to the technical field of new energy, in particular to a seat type reinforced concrete protective guardrail for a highway subgrade section.
Background
In the process of road engineering construction, in order to prevent accidents caused by vehicles driving out of roads or into opposite lanes, designers comprehensively determine whether to set guardrails according to factors such as line shapes of roads, traffic volumes, traffic compositions, environmental conditions and the like, and comprehensively determine three risk levels of low, medium and high according to accident severity, running speed and road side conditions, generally speaking, reinforced concrete guardrails are arranged on the road sides of the medium and high risk roads.
The design specifications of road traffic safety facilities (JTG D81-2017) and the design rules of road traffic safety facilities (JTG/T D81-2017) stipulate that the structural size of an upper anti-collision wall and the structural size of a lower foundation of an A, SB, SA, SS, HB and HA concrete guardrail can adopt a seat mode or a pile foundation mode, but the specific structural size of the lower foundation is not given, so that the situation that the foundation is small and insufficient in stability can occur in the design process, the anti-collision grade of the guardrail is greatly reduced, and even unnecessary safety accidents are predicted.
Therefore, a technical scheme which can realize rapid standardized construction, effectively shorten the construction period, save building materials and reduce the cost is urgently needed in the prior art.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, the present invention provides a reinforced concrete protective guard rail of the seat type for a road foundation section.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a seat type reinforced concrete protection guardrail for a highway subgrade section comprises an upper anti-collision wall and a lower seat type guardrail foundation which are arranged from top to bottom, wherein the upper anti-collision wall and the lower seat type guardrail foundation are integrally formed, the upper anti-collision wall is composed of a right-angled trapezoid part, a trapezoid part and an irregular hexagonal part, the right-angled trapezoid part, the trapezoid part and the irregular hexagonal part are sequentially arranged from top to bottom, and the outer side edges of the right-angled trapezoid part, the trapezoid part and the irregular hexagonal part are on the same plane; the utility model discloses a road guardrail structure, including lower part seat formula guardrail basis, lower part seat formula guardrail basis is "L" type of inversion, the long limit level setting on lower part seat formula guardrail basis, just the long limit on lower part seat formula guardrail basis with upper portion anticollision wall is connected, the minor face on lower part seat formula guardrail basis sets up down, just the minor face on lower part seat formula guardrail basis sets up the inboard on highway.
The anti-collision wall comprises an upper portion and an anti-collision wall body, and is characterized in that a plurality of deformation joints are longitudinally arranged in the upper portion anti-collision wall body, hot-dip galvanized steel pipes are further arranged in the upper portion anti-collision wall body and penetrate through the deformation joints, and polystyrene rigid foam plates are filled in the deformation joints.
The width of each deformation joint is 2cm, three hot-dip galvanized steel pipes are correspondingly arranged at each deformation joint, the distance between every two adjacent hot-dip galvanized steel pipes is 25cm, the length of each hot-dip galvanized steel pipe is 1m, and the nominal diameter of each hot-dip galvanized steel pipe is 6 cm.
Compared with the prior art, the utility model has the beneficial effects that: the design of the upper anti-collision wall and the L-shaped lower seat type guardrail foundation has reliable foundation stability, good anti-overturning property and good anti-collision performance; moreover, standardized construction can be realized, the construction progress is effectively improved, and the construction quality is ensured.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the rebar structure of the present invention.
Fig. 3 is a cross-sectional view of fig. 1 with a deformation joint.
Fig. 4 is a side view of fig. 1 with a deformation joint.
Detailed Description
The utility model is further illustrated by the following specific embodiments.
The seat type reinforced concrete protective guardrail for the highway subgrade section shown in the figures 1-4 comprises an upper anti-collision wall 1 and a lower seat type guardrail foundation 2 which are arranged from top to bottom, wherein the upper anti-collision wall 1 and the lower seat type guardrail foundation 2 are integrally formed, the upper anti-collision wall 1 consists of a right-angled trapezoid part, a trapezoid part and an irregular hexagon part, the right-angled trapezoid part, the trapezoid part and the irregular hexagon part are sequentially arranged from top to bottom, and the outer side edges of the right-angled trapezoid part, the trapezoid part and the irregular hexagon part are on the same plane; lower part seat formula guardrail basis 2 is "L" type of inversion, and the long limit level setting of lower part seat formula guardrail basis 2, and the long limit of lower part seat formula guardrail basis 2 is connected with upper portion anticollision wall 1, and the minor face of lower part seat formula guardrail basis 2 sets up down, and the minor face setting of lower part seat formula guardrail basis 2 is in the inboard of highway.
In the embodiment, the height of the anti-collision wall is 110cm, the width of the lower bottom is 52.5cm, the width of the upper top is 20cm, the seat type foundation is L-shaped, and the seat type foundation is 112.5cm in length, 35cm in width and 75cm in height.
Cast-in-place construction is adopted to upper portion anticollision wall 1 and lower part seat formula, and the concrete elevation is not less than C35, and inside all disposes the reinforcing bar. The arrangement of the reinforcing steel bars is shown in figure 1:
HRB400 steel bars with the diameter of 16mm are adopted as the N1 and N2 steel bars.
HRB400 steel bars with the diameter of 12mm are adopted as the N3 and N9 steel bars.
The N4, N7, N8 and N10 steel bars adopt HPB300 steel bars with the diameter of 10 mm.
HRB400 steel bars with the diameter of 20mm are adopted as the N5 and N6 steel bars.
The distances between the N1, N2, N3, N5 and N6 steel bars are all 10cm, the distances between the N4, N7, N8 and N10 steel bars are all 20cm, and the N9 is vertical to the spaces of other steel bars.
The steel bar hooks are standard hooks.
A plurality of deformation joints are longitudinally arranged in the upper anti-collision wall 1, hot-dip galvanized steel pipes 3 are further arranged in the upper anti-collision wall 1, the hot-dip galvanized steel pipes 3 penetrate through the deformation joints, and polystyrene hard foam plates are filled in the deformation joints.
The deformation joint is arranged once every 3-4m, the width is 2cm, three hot-dip galvanized steel pipes 3 are correspondingly arranged at each deformation joint, namely the deformation joints are connected by the hot-dip galvanized steel pipes 3, the distance between every two adjacent hot-dip galvanized steel pipes 3 is 25cm, the length of each hot-dip galvanized steel pipe 3 is 1m, and the nominal diameter of each hot-dip galvanized steel pipe 3 is 6 cm.
When the concrete foundation is constructed, N1, N2 and N3 are pre-embedded and poured together in advance, and the guardrail anti-collision wall and the foundation are made of C35 concrete. During construction, the thickness of the protective layer of the steel bar at the break is not less than 4.5cm, the compaction degree of the soil shoulder is not less than 95%, and the bearing capacity of the foundation is not less than 150 kN/m.
The above description is only for the preferred embodiment of the present invention, but the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes and modifications without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.
Claims (3)
1. A seat type reinforced concrete protection guardrail for a highway subgrade section is characterized by comprising an upper anti-collision wall and a lower seat type guardrail foundation which are arranged from top to bottom, wherein the upper anti-collision wall and the lower seat type guardrail foundation are integrally formed, the upper anti-collision wall is composed of a right-angled trapezoid part, a trapezoid part and an irregular hexagon part, the right-angled trapezoid part, the trapezoid part and the irregular hexagon part are sequentially arranged from top to bottom, and the outer side edges of the right-angled trapezoid part, the trapezoid part and the irregular hexagon part are on the same plane; the utility model discloses a road guardrail structure, including lower part seat formula guardrail basis, lower part seat formula guardrail basis is "L" type of inversion, the long limit level setting on lower part seat formula guardrail basis, just the long limit on lower part seat formula guardrail basis with upper portion anticollision wall is connected, the minor face on lower part seat formula guardrail basis sets up down, just the minor face on lower part seat formula guardrail basis sets up the inboard on highway.
2. The seat-type reinforced concrete protection guardrail for the highway subgrade section according to claim 1, which is characterized in that a plurality of deformation joints are longitudinally arranged in the upper anti-collision wall, a hot galvanized steel pipe is further arranged in the upper anti-collision wall, the hot galvanized steel pipe penetrates through the deformation joints, and polystyrene hard foam plates are filled in the deformation joints.
3. The seat-type reinforced concrete protection guardrail for the highway subgrade section according to claim 2, characterized in that the deformation joints are 2cm in width, three hot-galvanized steel pipes are correspondingly arranged at each deformation joint, the distance between every two adjacent hot-galvanized steel pipes is 25cm, the length of each hot-galvanized steel pipe is 1m, and the nominal diameter of each hot-galvanized steel pipe is 6 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120759686.8U CN216689183U (en) | 2021-04-14 | 2021-04-14 | Seat type reinforced concrete protective guardrail for highway subgrade section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120759686.8U CN216689183U (en) | 2021-04-14 | 2021-04-14 | Seat type reinforced concrete protective guardrail for highway subgrade section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216689183U true CN216689183U (en) | 2022-06-07 |
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ID=81813963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120759686.8U Active CN216689183U (en) | 2021-04-14 | 2021-04-14 | Seat type reinforced concrete protective guardrail for highway subgrade section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216689183U (en) |
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2021
- 2021-04-14 CN CN202120759686.8U patent/CN216689183U/en active Active
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