CN220685777U - Combined bridge guardrail with saddle-shaped steel base - Google Patents
Combined bridge guardrail with saddle-shaped steel base Download PDFInfo
- Publication number
- CN220685777U CN220685777U CN202321443940.9U CN202321443940U CN220685777U CN 220685777 U CN220685777 U CN 220685777U CN 202321443940 U CN202321443940 U CN 202321443940U CN 220685777 U CN220685777 U CN 220685777U
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- Prior art keywords
- saddle
- steel
- shaped steel
- guardrail
- steel base
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009510 drug design Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of bridge guardrails, in particular to a combined bridge guardrail with a saddle-shaped steel base. The technical scheme adopted by the utility model comprises a bottom concrete guardrail, a plurality of saddle-shaped steel bases arranged on the bottom concrete guardrail, wherein the top of each saddle-shaped steel base is provided with a steel upright post, and one side of each steel upright post is provided with a steel cross beam. The saddle-shaped steel base and the original structure concrete form a whole, so that the saddle-shaped steel base is stressed well and has better overall performance; the construction is convenient, and the construction period is shortened; through rational design steel-mixed connection position, can improve the crashproof ability of structure, make it atress more reasonable, and the construction is simple, swift.
Description
Technical Field
The utility model relates to the technical field of bridge guardrails, in particular to a combined bridge guardrail with a saddle-shaped steel base.
Background
Early-built road bridge roadside guardrails generally adopt concrete combined guardrails, and the guardrails consist of concrete 6, steel handrails 7 (seamless steel pipes) and embedded steel castings (connecting parts) thereof, as shown in fig. 1. Because of factors such as construction age, level and design standard, more bridge combined guardrails can not meet the requirement of higher anti-collision capability due to factors such as the current development of economy and society, the increase of passenger capacity and load capacity of vehicles, the improvement of vehicle speed and the like. Therefore, the old combined guardrail is improved, so that the anti-collision capability of the guardrail is very necessary.
The combined guardrail lifting and reforming device has various forms, including dismantling original steel beams and upright posts, and lifting the anti-collision grade of the guardrail by technical means such as concrete height connection or adding new steel beams and upright posts.
The new steel cross beam and upright post are improved, and the structure of anchoring connection between the steel member and the concrete part is involved. The conventional design of the base flange plate of the connecting part is implemented at a narrow part at the top of the concrete guardrail by planting anchor bolts, firstly, the number of the planted ribs is large, secondly, the construction is difficult, and the defect that concrete damage is caused by blind holes of the planted anchor bolts is overcome.
Disclosure of Invention
In view of the above, the utility model provides a combined bridge guardrail with a saddle-shaped steel base, which is convenient to construct, good in stress performance and good in overall performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
combined bridge guardrail with saddle steel base, including the concrete guardrail of bottom, its characterized in that: the concrete guardrail comprises a bottom concrete guardrail body and is characterized by further comprising a plurality of saddle-shaped steel bases arranged on the bottom concrete guardrail body, wherein the top of each saddle-shaped steel base is provided with a steel upright post, and one side of each steel upright post is provided with a steel cross beam.
Further, a stiffening plate is arranged on the other side of the steel cross beam.
Further, the steel cross beam is provided with two, and is arranged on one side of the steel upright post in parallel up and down.
Further, the saddle-shaped steel base is connected with the concrete guardrail through bolts.
Further, the steel cross beam is connected to the steel upright post through the L-shaped plate.
Further, a waterproof sleeve is arranged at the joint of the bolt and the saddle-shaped steel base.
Further, the concrete guardrail and the saddle-shaped steel base are filled with mortar.
Compared with the prior art, the utility model has the following beneficial technical effects:
1) The saddle-shaped steel base and the original structure concrete form a whole, so that the saddle-shaped steel base is stressed well and has better overall performance; the construction is convenient, and the construction period is shortened.
2) The utility model can improve the anti-collision capability of the structure by reasonably designing the steel-concrete connection part, so that the stress is more reasonable, and the construction is simple and quick.
3) According to the utility model, the old guardrail is modified by removing the original guardrail steel handrail and adding new steel upright posts, steel cross beams and other members to increase the height of the guardrail, so that the protection capability of the guardrail is improved.
Drawings
FIG. 1 is a cross-sectional structural view of a guardrail prior to modification;
FIG. 2 is a cross-sectional structural view of the present utility model;
FIG. 3 is a longitudinal bridge construction of the present utility model;
fig. 4 is a schematic structural view of a saddle-shaped steel base of the present utility model, wherein a is a top view of the saddle-shaped steel base and b is a side view of the saddle-shaped steel base.
Reference numerals: 1-saddle steel base, 2-steel crossbeam, 3-steel stand, 4-stiffening plate, 5-waterproof cover, 6-concrete guardrail, 7-mortar, 8-pipe handrail.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a combined bridge guardrail with saddle-shaped steel bases, which comprises a concrete guardrail 6 at the bottom, wherein the concrete guardrail 6 at the bottom is provided with a plurality of saddle-shaped steel bases 1, the saddle-shaped steel bases 1 are connected with the concrete guardrail 6 through bolts, waterproof sleeves 5 are arranged at the joints of the bolts and the saddle-shaped steel bases 1, the bolts are prevented from rusting due to rainwater, steel upright posts 3 are arranged at the top of each saddle-shaped steel base 1, one side of each steel upright post 3 is provided with a steel cross beam 2, the other side of each steel upright post 3 is provided with a stiffening plate 4, the structural strength and the rigidity of the joint are improved, and the steel cross beam 2 is connected to the steel upright posts 3 through L-shaped plates and bolts.
The steel cross beams 2 are arranged at two sides and are arranged at one side of the steel upright post 3 in parallel up and down.
The space between the concrete guardrail 6 and the saddle-shaped steel base 1 is filled with mortar 7.
As shown in fig. 4, saddle-shaped steel base 1 is formed by welding three illustrated steel plates with delta=22 mm into a saddle shape; and drilling anchor bolt holes on the concrete guardrail by lofting, lofting the anchor bolt holes on steel plates at two sides of the saddle-shaped base, and drilling the anchor bolt holes again to ensure that the two hole positions are positioned on the same straight line.
The installation method of the utility model comprises the following steps:
the concrete structure comprises an original concrete structure (with a split anchor bolt hole), a saddle-shaped steel base, a split M24 anchor bolt and a stiffening plate.
The saddle-shaped steel base 1 is welded with the steel upright post and is reinforced by a stiffening plate, so that the structural rigidity is improved; then the base is connected and anchored with the concrete guardrail through a split M24 bolt, and the real part is filled by mortar; finally, two steel beams are installed.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model.
Claims (2)
1. Combined bridge guardrail with saddle-shaped steel base, including concrete guardrail (6) of bottom, its characterized in that: the concrete guardrail comprises a concrete guardrail body and is characterized by further comprising a plurality of saddle-shaped steel bases (1) arranged on the bottom concrete guardrail body (6), wherein the top of each saddle-shaped steel base (1) is provided with a steel upright post (3), and one side of each steel upright post (3) is provided with a steel cross beam (2);
the concrete guardrail (6) and the saddle-shaped steel base (1) are filled with mortar (7);
a stiffening plate (4) is arranged on the other side of each steel upright post (3);
the steel cross beams (2) are arranged at two sides and are arranged at one side of the steel upright post (3) in parallel up and down;
the saddle-shaped steel base (1) is connected with the concrete guardrail (6) through bolts;
the joint of the bolt and the saddle-shaped steel base (1) is provided with a waterproof sleeve (5).
2. The modular bridge guardrail with saddle shaped steel base of claim 1, wherein: the steel cross beam (2) is connected to the steel upright post (3) through an L-shaped plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321443940.9U CN220685777U (en) | 2023-06-08 | 2023-06-08 | Combined bridge guardrail with saddle-shaped steel base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321443940.9U CN220685777U (en) | 2023-06-08 | 2023-06-08 | Combined bridge guardrail with saddle-shaped steel base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220685777U true CN220685777U (en) | 2024-03-29 |
Family
ID=90410560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321443940.9U Active CN220685777U (en) | 2023-06-08 | 2023-06-08 | Combined bridge guardrail with saddle-shaped steel base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220685777U (en) |
-
2023
- 2023-06-08 CN CN202321443940.9U patent/CN220685777U/en active Active
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