CN217733746U - Novel bridge guardrail end BT connection transition section - Google Patents
Novel bridge guardrail end BT connection transition section Download PDFInfo
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- CN217733746U CN217733746U CN202221229287.1U CN202221229287U CN217733746U CN 217733746 U CN217733746 U CN 217733746U CN 202221229287 U CN202221229287 U CN 202221229287U CN 217733746 U CN217733746 U CN 217733746U
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- wave form
- guardrail
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- transition section
- novel bridge
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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 novel bridge railing end BT connects changeover portion, includes a plurality of stands, and the side of a plurality of stands prevents through a plurality of that the piece is connected with three wave form beam slab and two wave form beam slab, and two wave form beam slab setting are in three wave form beam slab below, and the tip of three wave form beam slab and two wave form beam slab has the steel construction connection end through 8.8 grades of M20 bolted connection, and the steel construction connection end is through 8.8 grades of M20 bar planting bolt anchoring on concrete railing, and overall structure length is greater than 11 meters. This novel bridge railing end BT connects changeover portion can be effectively connected wave form roof beam guardrail and concrete barrier, can improve the safety protection ability of wave form roof beam guardrail tip and whole wave form roof beam guardrail.
Description
Technical Field
The utility model relates to a guardrail changeover portion, concretely relates to novel bridge railing end BT connects changeover portion.
Background
The highway bridge is a traffic structure spanning regions such as wading, valleys and barriers, and concrete guardrails are generally arranged on two sides above the bridge according to standard requirements to perform safety protection on vehicles out of control. In the many years' actual operation inspection, the concrete guardrail of existing bridge possesses better safety protection ability through multiple accident vehicle collision, can effectively protect the vehicle. However, for the transition section of the road and bridge, most of the roadbed section of the highway adopts the double-wave beam or three-wave beam guardrail, and the end part of the roadbed section wave beam guardrail is provided with a circular packet head and is not effectively connected with the bridge concrete guardrail, so that the roadbed section wave beam guardrail cannot provide enough anchoring force for the wave beam guardrail, the end part safety protection capability of the wave beam guardrail is weaker, even the whole safety performance of the standard section wave beam guardrail is influenced, and the designed safety protection level cannot be reached. Meanwhile, in order to improve the safety protection capability of guardrails at road and bridge connecting positions, part of construction units anchor the roadbed section corrugated beam guardrails through 4 bolts and the end portions of bridge concrete, generally adopt 4 expansion bolts of 4.8M 12, and the diameter of the expansion bolts is small. In the collision process of an out-of-control vehicle, the bolt is easy to shear by the corrugated beam, the anchoring and connecting strength of the end part of the corrugated beam still cannot meet the design requirement, and serious traffic accidents occur.
Above-mentioned connection structure form is unreasonable, leads to wave form roof beam guardrail tip guardrail anchoring ability not enough, and during the vehicle collision out of control, the guardrail tip can produce great deformation, and the vehicle easily collides concrete guardrail end, forms and stumbles the phenomenon of hindering, causes great harm to vehicle and personnel, leads to even vehicle collision back, passes through wave form roof beam guardrail and drives into under the bridge.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can be effectively connected wave form roof beam guardrail and concrete barrier, can improve the novel bridge railing end BT connection changeover portion of wave form roof beam guardrail tip and the safety protection ability of whole wave form roof beam guardrail.
The utility model discloses bridge railing end BT connects the changeover portion, and overall structure length is greater than 11 meters, including a plurality of stands, the side of a plurality of stands prevents through a plurality of that the piece that blocks is connected with three wave form beam slab and two wave form beam slab, and two wave form beam slab setting are in three wave form beam slab below, and the tip of three wave form beam slab and two wave form beam slab has the steel construction connection end through 8.8 level M20 bolted connection, and the steel construction connection end is through 8.8 level M20 bar planting bolt anchor on concrete barrier.
The utility model discloses bridge railing end BT connects changeover portion, wherein, the steel construction is connected the end and is included to meet and hit the panel and weld the roof that hits the panel top meeting, meet and hit the front surface that panel and rear surface and concrete barrier and closely laminate, the lower surface of roof closely laminates with the top face of concrete barrier.
The utility model discloses bridge railing end BT connects changeover portion, wherein, the left end portion that meets and hit the panel is provided with a plurality of M20 bar planting bolt holes, and the downthehole installation of M20 bar planting bolt 8.8 level M20 bar planting bolt meets and hits the right-hand member portion that the panel is provided with a plurality of M20 bolt holes, sets up in the M20 bolt hole 8.8 level M20 bolt.
The utility model discloses bridge railing end BT connects changeover portion, wherein, be provided with a plurality of expansion bolt holes on the roof, set up expansion bolts in the expansion bolt hole, the roof passes through expansion bolts fixed connection with the concrete barrier.
The utility model discloses bridge railing end BT connects the changeover portion, wherein, the centre-to-centre spacing ground height of three wave form beam slabs is 697mm.
The utility model discloses bridge railing end BT connects changeover portion, wherein, with the stand of two sections wave form roof beam guardrails that the concrete barrier is adjacent adopts 1m interval to arrange, and all the other stands adopt 2m interval to arrange.
The utility model discloses changeover portion is connected to bridge railing end BT, wherein, three wave form beam slab is formed by the concatenation of a plurality of three wave plates, and 8.8 grades of M16 high strength bolts are adopted in the concatenation between two adjacent three wave plates.
The utility model discloses bridge railing end BT connects the changeover portion, wherein, three wave form beam slab and prevent between the piece that hinders, two wave form beam slab and prevent between the piece that hinders, prevent that the connecting bolt between piece and the stand all adopts ordinary bolt.
The utility model discloses bridge railing end BT connects changeover portion, wherein, the stand adopts the pile mode to bury below the road surface, and the pile degree of depth is 1.65m.
The utility model discloses bridge railing end BT connects changeover portion, wherein, the stand adopts bar planting bolt mode to set up.
The utility model discloses bridge guardrail end BT connects transition section and prior art difference lies in the utility model discloses bridge guardrail end BT connects transition section includes steel construction connection end, three wave form beam slab, two wave form beam slab, stand, prevent blockking and supporting bolt, overall structure length is greater than 11 meters, three wave form beam slab centre-to-ground height 697mm, three wave form beam slab below sets up two wave form beam slab, wave form beam slab tip passes through 8.8 level M20 bolt and is connected the end with the steel construction, steel construction connection end passes through 8.8 level M20 bar planting bolt anchor on concrete barrier, set up expansion bolt and be used for the structure fixed at steel construction connection end top and with concrete barrier hookup location simultaneously, wave form beam guardrail and concrete barrier's effective connection has been formed, can improve wave form beam guardrail tip and whole wave form beam guardrail's safety protection ability, the utility model discloses bridge guardrail end connects transition section through adopting little freight train BT, the coach, three kinds of solid car foot size collision test motorcycle type, it verifies that protection performance accords with the safety performance standard evaluation highway SB-280 kB of safety performance J (20101-JT) and promotes highway's energy requirement.
The novel bridge railing end BT connection transition section of the present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is an elevation view of the BT connection transition section of the bridge guardrail end of the present invention;
FIG. 2 is a plan view of the BT connection transition section of the bridge guardrail end of the present invention;
fig. 3 is the utility model discloses bridge railing end BT connects the side view of changeover portion, wherein does not show two ripples wave form beam slab and steel construction connection end.
Detailed Description
As shown in fig. 1-3, the novel bridge railing end BT connection transition section of this embodiment, overall structure length is greater than 11 meters, including a plurality of stands 4, the side of a plurality of stands 4 is connected with three wave form beam slab 2 and two wave form beam slab 3 through a plurality of anti-blocking blocks 5, two wave form beam slab 3 set up in three wave form beam slab 2 below, the tip of three wave form beam slab 2 and two wave form beam slab 3 is connected with steel construction connection end 1 through 8.8 level M20 bolt 8, steel construction connection end 1 is through 8.8 level M20 bar planting bolt 7 anchor on concrete railing 1'.
As shown in fig. 1 and 2, the steel structure connecting end 1 is formed by bending steel plates, and comprises an impact panel 11 and a top plate 12 welded at the top end of the impact panel 11, wherein the left end part of the impact panel 11 is provided with a plurality of M20 steel bar planting bolt holes, 8.8-grade M20 steel bar planting bolts 7 are installed in the M20 steel bar planting bolt holes, the right end part of the impact panel 11 is provided with a plurality of M20 bolt holes, and 8.8-grade M20 bolts 8 are arranged in the M20 bolt holes; as shown in fig. 1 and 2, the right end of the head-on collision panel 11 of the steel structure connecting end 1 is provided with three rows of M20 bolt holes, the upper two rows of M20 bolt holes are used for connecting the three-wave-shaped beam plate 2, and the lower one row of M20 bolt holes are used for connecting the double-wave-shaped beam plate 3. A plurality of expansion bolt holes are formed in the top plate 12, expansion bolts 6 are arranged in the expansion bolt holes, and the top plate 12 is fixedly connected with the concrete guardrail 1' through the expansion bolts 6; through 8.8 level M20 bar planting bolts 7, 8.8 level M20 bolts 8, expansion bolts 6's setting, connect the back, meet and hit panel 11 and rear surface and closely laminate with the front surface of concrete guardrail, the lower surface of roof 12 closely laminates with the top face of concrete guardrail.
The novel bridge railing end BT of this embodiment connects the changeover portion, and wherein, the centre-to-ground height of three wave form roof beam board 2 is 697mm.
The upright columns 4 of the two sections of corrugated beam guardrails adjacent to the concrete guardrail 1' are arranged at intervals of 1m, and the rest upright columns are arranged at intervals of 2 m. The upright post 4 is embedded below the road surface by adopting a piling mode, the piling depth is 1.65m, the embedding depth L is 1.65m, or the upright post is arranged by adopting a bar-planting bolt mode. The height A from the top end of the three-wave-shaped beam plate 2 to the road surface is 570mm, the height H of the steel structure connecting end head 1 is larger than 570mm, and the length B of the steel structure connecting end head 1 is 1380mm.
As shown in fig. 1, in the novel bridge guardrail end BT connection transition section of this embodiment, the three-wave corrugated beam plate 2 is formed by splicing a plurality of three-wave plates 21, and 8.8-grade M16 high-strength bolts are used for splicing between two adjacent three-wave plates 21.
In this embodiment, the connecting bolts between the three-wave-shaped beam plate 2 and the block 5, between the two-wave-shaped beam plate 3 and the block 5, and between the block 5 and the column 4 are all common bolts.
The novel bridge railing end BT of this embodiment connects the changeover portion, and wherein BT represents wave form roof beam guardrail and concrete guardrail transitional structure section.
Fig. 1 and 2 are a use state diagram and a connection schematic diagram of a novel bridge guardrail end BT connection transition section, wherein a concrete guardrail 1 'and a three-wave waveform beam guardrail standard section 2' are shown; during the use, connect the right-hand member of changeover portion with the novel bridge railing end BT of this embodiment and be connected with three wave form roof beam guardrail standard section 2', utilize the steel construction connect end 1 with concrete guardrail 1' be connected can, be about to the right-hand member of three wave form roof beam slab 2 and be connected with three wave form roof beam guardrail standard section 2', pass through expansion bolts 6 fixed connection with roof 12 and concrete guardrail 1', will meet the left end that hits panel 11 and concrete guardrail 1' and utilize 8.8 grades of M20 to plant muscle bolt 7 and be connected.
In the novel bridge guardrail end BT connecting transition section, a double-wave-shaped beam plate is arranged below a three-wave-shaped beam plate, the end parts of the three-wave-shaped beam plate and the double-wave-shaped beam plate are connected with a steel structure connecting end through 8.8-level M20 bolts, the steel structure connecting end is anchored on a concrete guardrail through 8.8-level M20 steel-planted bolts, expansion bolts are arranged at the top of the steel structure connecting end and the connecting position of the steel structure connecting end and the concrete guardrail for structure fixation, and the structure is encrypted and arranged at the position close to the concrete guardrail, so that rigidity transition is effectively performed; the steel structure connecting end can be adjusted in height and shape according to the concrete guardrail, so that the perfect fit with the concrete guardrail is ensured, and the control of construction quality is facilitated; the effective connection of wave form roof beam guardrail and concrete guardrail has been formed in above structure setting, has improved the safety protection ability of wave form roof beam guardrail tip and whole wave form roof beam guardrail.
The utility model discloses the changeover portion is connected to bridge railing end BT, through adopting three kinds of motorcycle types full-scale bump test verification of minibus, motor coach, large truck, and its protective capacities accords with the requirement of the SB level (protective energy is more than or equal to 280 kJ) of "highway guardrail safety performance evaluation standard" (JTG B05-01-2013), has effectively promoted the whole safe operation level of highway.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a novel bridge railing end BT connects changeover portion which characterized in that: overall structure length is greater than 11 meters, including a plurality of stands (4), the side of a plurality of stands (4) is connected with three wave form beam slab (2) and two wave form beam slab (3) through a plurality of anti-blocking piece (5), two wave form beam slab (3) set up in three wave form beam slab (2) below, the tip of three wave form beam slab (2) and two wave form beam slab (3) is connected with steel construction connection end (1) through 8.8 level M20 bolt (8), steel construction connection end (1) is anchored on concrete guardrail (1') through 8.8 level M20 bar planting bolt (7).
2. The novel bridge guardrail end BT connecting transition section of claim 1, which is characterized in that: the steel structure connecting end (1) comprises a collision facing panel (11) and a top plate (12) welded to the top end of the collision facing panel (11), the collision facing panel (11) and the rear surface are tightly attached to the front surface of the concrete guardrail, and the lower surface of the top plate (12) is tightly attached to the top end face of the concrete guardrail.
3. The novel bridge guardrail end BT connection transition section of claim 2, which is characterized in that: the left end part of the head-on collision panel (11) is provided with a plurality of M20 steel bar planting bolt holes, the 8.8-grade M20 steel bar planting bolts (7) are installed in the M20 steel bar planting bolt holes, the right end part of the head-on collision panel (11) is provided with a plurality of M20 bolt holes, and the 8.8-grade M20 bolts (8) are arranged in the M20 bolt holes.
4. The novel bridge guardrail end BT connection transition section of claim 3, which is characterized in that: the top plate (12) is provided with a plurality of expansion bolt holes, expansion bolts (6) are arranged in the expansion bolt holes, and the top plate (12) is fixedly connected with the concrete guardrail (1') through the expansion bolts (6).
5. The novel bridge guardrail end BT connecting transition section of claim 4, which is characterized in that: the height from the center of the three-wave-shaped beam plate (2) to the ground is 697mm.
6. The novel bridge guardrail end BT connecting transition section of claim 5, which is characterized in that: the upright columns (4) of two adjacent sections of corrugated beam guardrails are arranged at intervals of 1m, and the rest upright columns are arranged at intervals of 2 m.
7. The novel bridge guardrail end BT connection transition section of claim 6, which is characterized in that: the three-wave-shaped beam plate (2) is formed by splicing a plurality of three-wave plates (21), and 8.8-grade M16 high-strength bolts are adopted for splicing two adjacent three-wave plates (21).
8. The novel bridge guardrail end BT connecting transition section of claim 7, which is characterized in that: and the connecting bolts between the three-wave-shaped beam plate (2) and the anti-blocking block (5), between the double-wave-shaped beam plate (3) and the anti-blocking block (5) and between the anti-blocking block (5) and the upright post (4) are all common bolts.
9. The novel bridge guardrail end BT connecting transition section of claim 8, wherein: the upright post is buried below the road surface in a piling mode, and the piling depth is 1.65m.
10. The novel bridge guardrail end BT connecting transition section of claim 8, wherein: the upright posts are arranged in a rib planting bolt mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221229287.1U CN217733746U (en) | 2022-05-18 | 2022-05-18 | Novel bridge guardrail end BT connection transition section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221229287.1U CN217733746U (en) | 2022-05-18 | 2022-05-18 | Novel bridge guardrail end BT connection transition section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217733746U true CN217733746U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221229287.1U Active CN217733746U (en) | 2022-05-18 | 2022-05-18 | Novel bridge guardrail end BT connection transition section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217733746U (en) |
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2022
- 2022-05-18 CN CN202221229287.1U patent/CN217733746U/en active Active
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