CN217026669U - Movable guardrail base additionally arranged in existing bridge median zone - Google Patents
Movable guardrail base additionally arranged in existing bridge median zone Download PDFInfo
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- CN217026669U CN217026669U CN202220094596.6U CN202220094596U CN217026669U CN 217026669 U CN217026669 U CN 217026669U CN 202220094596 U CN202220094596 U CN 202220094596U CN 217026669 U CN217026669 U CN 217026669U
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- steel plate
- movable guardrail
- bridge
- guardrail base
- stiffening
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Abstract
The utility model discloses a movable guardrail base additionally arranged in a median strip of an existing bridge, which comprises an upper steel plate used as a supporting surface and two lower steel plates fixed at the lower end of the upper steel plate, wherein the lower steel plates are used for being supported between openings of the median strips of the two bridges; a first stiffening structure is arranged between the two lower steel plates; the movable guardrail sleeve penetrates through the upper steel plate and is fixed with the upper steel plate. The utility model relates to a bearing structure for connecting two bridges, which is suitable for being used in a bridge with a built high pier bridge and a movable guardrail arranged at an opening of a central separation zone, and can realize the conversion of vehicles between the two bridges during the operation and maintenance of the bridge and under the emergency condition.
Description
Technical Field
The utility model belongs to the field of bridge structures and civil engineering, and particularly relates to a movable guardrail base additionally arranged in an existing bridge median zone.
Background
For long and large bridges, in order to facilitate the left-right width conversion of vehicles during the operation, maintenance and construction of the bridges and under emergency conditions, the passing time is shortened, and a middle sub-belt opening is required to be arranged between the two bridges in an up-down direction according to the specification. Many long and large bridges built have the problem that the distance between the middle zonal openings between an upper bridge and a lower bridge is long or even the middle zonal openings are not arranged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a movable guardrail base additionally arranged in a middle sub-zone of an existing bridge, and aims to solve the problem that the middle sub-zone of a long and large bridge is too long in opening distance, so that the operation, maintenance and emergency situations of the bridge are not facilitated, and the vehicle can not be converted between two bridges.
The technical solution for realizing the purpose of the utility model is as follows:
a movable guardrail base additionally arranged in the middle sub-zone of an existing bridge comprises an upper steel plate used as a supporting surface, and two lower steel plates fixed at the lower end of the upper steel plate, wherein the lower steel plates are used for being supported between openings of the middle sub-zones of the two bridges; a first stiffening structure is arranged between the two lower steel plates; the movable guardrail sleeve penetrates through the upper steel plate and is fixed with the upper steel plate.
Compared with the prior art, the utility model has the remarkable advantages that:
the utility model relates to a bearing structure for connecting two bridges, which is suitable for being used in a bridge with a built high pier bridge and a movable guardrail arranged at an opening of a central separation zone, and can realize the conversion of vehicles between the two bridges during the operation and maintenance of the bridge and under the emergency condition. The support does not need to be erected under the bridge, the hoisting can be completed only by utilizing a small crane on the bridge, the installation can be completed without adopting excessive construction measures and large-scale construction machinery, and the construction is safe and reliable. The structure is simple, the installation is convenient, the components are mainly manufactured in factories, the construction speed is high, and the durability is good due to the adoption of the ultra-high performance concrete as the pavement layer.
Drawings
FIG. 1 is a side down view of a steel structure of a base of a sectional movable guardrail.
Fig. 2 is a side top view of a section of movable guardrail base steel structure.
Fig. 3 is a schematic view of the movable guardrail base after the movable guardrail base is installed on a bridge.
1-upper steel plate; 2-lower steel plate; 3, a stiffening steel plate along the bridge direction; 4-transverse bridge direction stiffening steel plate; 5-movable guard bar sleeve; 6-anti-collision reinforced steel plate of movable guardrail base; 7-shear pin; 8-anchor bolt; 9-ultra high performance concrete; 10-existing bridge pavement layer; 11-bridge box girder cantilever structure.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
With reference to fig. 1-3, the movable guardrail base additionally arranged in the existing bridge middle zone comprises an upper steel plate 1, a lower steel plate 2, a forward stiffening steel plate 3, a transverse bridge stiffening steel plate 4, a movable guardrail sleeve 5 and a movable guardrail base anti-collision reinforcing steel plate 6;
the two lower steel plates 2 are respectively fixed on the left side and the right side of the lower end of the upper steel plate 1 and used for being erected between the openings of the median strips of the two bridges; the lower ends of the two lower steel plates 2 are respectively fixed with a downstream stiffening steel plate 3 which is arranged in parallel, a plurality of transverse bridge stiffening steel plates 4 are uniformly fixed between the two downstream stiffening steel plates 3, and a downstream stiffening steel plate 3 penetrates through the middle of the plurality of transverse bridge stiffening steel plates 4; the upper steel plate 1, the lower steel plate 2, the forward stiffening steel plate 3 and the transverse bridge stiffening steel plate 4 form main stress components of the movable guardrail base.
The movable guardrail sleeve 5 penetrates through the middle of the upper steel plate 1 and is welded and fixed with the upper steel plate 1 through a seamless steel pipe, and the inner diameter and the distance are matched with the movable guardrail stand columns. In order to increase the anti-collision capacity of the movable guardrail base, a movable guardrail sleeve anti-collision reinforced steel plate 6 is arranged, and a movable guardrail sleeve 5 and the upper steel plate 1 are fixedly welded.
In order to increase the bonding force between the concrete and the steel plate, a plurality of shear nails 7 are uniformly arranged on the upper surface of the upper steel plate 1. The movable guardrail base is connected by welding, and a plurality of segments are processed and manufactured in a factory and then are coated by hot-dip zinc anti-corrosion coating. Transporting to the job site that needs add movable guardrail, installing the movable guardrail pedestal of segment section on two bridge cantilever structures, adopting a plurality of crab-bolts 8 with movable guardrail pedestal segment (lower steel sheet) and bridge cantilever 11 structural connection, at last pouring ultra high performance concrete 9 on last steel sheet 1, flushing with the existing layer 10 of mating formation of bridge, the installation is accomplished to the movable guardrail pedestal. After the movable guardrail base is formed, the movable guardrail can be arranged on the movable guardrail sleeve of the base. When the bridge needs to be maintained or is in emergency, the movable guardrail is detached, and vehicles can pass through the movable guardrail base, so that the left lane and the right lane can be switched.
Claims (8)
1. A movable guardrail base additionally arranged in a median strip of an existing bridge is characterized by comprising an upper steel plate used as a supporting surface and two lower steel plates fixed at the lower end of the upper steel plate, wherein the lower steel plates are used for being supported between openings of the median strips of the two bridges; a first stiffening structure is arranged between the two lower steel plates; the movable guardrail sleeve penetrates through the upper steel plate and is fixed with the upper steel plate.
2. The movable guardrail base of claim 1 wherein a second stiffening structure is provided between the movable guardrail sleeve and the upper steel plate.
3. The movable guardrail base of claim 1 wherein a plurality of longitudinal and transverse shear pins are uniformly disposed on the upper steel plate.
4. The movable guardrail base of claim 1 wherein the first stiffening structure comprises a forward stiffening steel plate and a transverse stiffening steel plate; two lower steel sheet lower extremes are fixed with parallel arrangement respectively in the same direction as the bridge to the steel sheet of putting more energy into, two in the same direction as the bridge to evenly be fixed with a plurality of horizontal bridges to the steel sheet of putting more energy into between the steel sheet of putting more energy into.
5. A movable guardrail base as claimed in claim 4, wherein a bridge-wise stiffening steel plate is provided through the middle of the plurality of cross-bridge-wise stiffening steel plates.
6. The movable guardrail base of claim 1 wherein the movable guardrail sleeve is a seamless steel tube.
7. The movable guardrail base of claim 1, wherein the lower steel plate is connected with the bridge cantilever structures at two sides of the central opening through a plurality of anchor bolts.
8. The movable guardrail base of claim 1, wherein the upper steel plate is cast with concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220094596.6U CN217026669U (en) | 2022-01-14 | 2022-01-14 | Movable guardrail base additionally arranged in existing bridge median zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220094596.6U CN217026669U (en) | 2022-01-14 | 2022-01-14 | Movable guardrail base additionally arranged in existing bridge median zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217026669U true CN217026669U (en) | 2022-07-22 |
Family
ID=82445542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220094596.6U Active CN217026669U (en) | 2022-01-14 | 2022-01-14 | Movable guardrail base additionally arranged in existing bridge median zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217026669U (en) |
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2022
- 2022-01-14 CN CN202220094596.6U patent/CN217026669U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230803 Address after: 210014 No. 9 Ziyun Avenue, Qinhuai District, Nanjing City, Jiangsu Province Patentee after: China Design Group Co.,Ltd. Patentee after: Zhongyuan Construction Engineering Co., Ltd. of China Design Group Address before: 210014 No. 9 Ziyun Avenue, Qinhuai District, Nanjing City, Jiangsu Province Patentee before: China Design Group Co.,Ltd. |