CN111139739B - Anti-collision guardrail for assembled bridge and implementation method thereof - Google Patents
Anti-collision guardrail for assembled bridge and implementation method thereof Download PDFInfo
- Publication number
- CN111139739B CN111139739B CN202010080340.5A CN202010080340A CN111139739B CN 111139739 B CN111139739 B CN 111139739B CN 202010080340 A CN202010080340 A CN 202010080340A CN 111139739 B CN111139739 B CN 111139739B
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- guardrail
- screw rod
- groove
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an anti-collision guardrail for an assembled bridge and an implementation method thereof, wherein the anti-collision guardrail comprises a guardrail body, the guardrail body is formed by connecting a plurality of guardrail connecting units end to end through an assembling device, each guardrail connecting unit comprises a base, a plurality of vertical fence rods arranged at intervals are fixedly connected to the top surface of the base, and top plates are fixedly connected to the top surfaces of the fence rods; the splicing device comprises an embedding mechanism and a movable splicing mechanism, wherein the embedding mechanism comprises a plurality of connecting grooves which are arranged side by side on the front end face of the rail rod on the leftmost side of the guardrail connecting unit, and the connecting grooves are semicircular grooves and are horn-shaped on the leftmost side. According to the invention, the adjacent guardrail connecting units can be quickly connected together through the prefabricated guardrail connecting units, the embedding mechanism and the movable assembling mechanism in the assembling device, so that the construction is convenient, and the operation is quick and efficient.
Description
Technical Field
The invention relates to the technical field of roads and bridges, in particular to an anti-collision guardrail for an assembled bridge and an implementation method thereof.
Background
The bridge guardrail is a traffic safety facility arranged at the outer side of a road shoulder, and is particularly important in the aspect of guaranteeing the safety of vehicles. At present, the concrete guardrail is most widely applied, a cast-in-place mode is mostly adopted, and the defects of complicated construction procedures, long maintenance time, low working efficiency and the like exist.
In patent publication No. CN110205931A, a prefabricated assembly type bridge crash barrier is disclosed. The prefabricated anti-collision guardrail comprises a pre-support anti-collision guardrail and a pre-support bridge deck, wherein the prefabricated anti-collision guardrail comprises a concrete layer, common steel bars and angle steel, the prefabricated bridge deck comprises a deck body and steel plates, the bottom of the prefabricated anti-collision guardrail is in embedded fit with the top of the prefabricated bridge deck, and the angle steel is fixedly connected with the steel plates. The crash barrier in this patent is concrete material, and needs the prefabricated decking of cooperation to use.
In a patent with publication number CN208533365U, a novel bridge prefabricated crash barrier assembling structure is disclosed. The structure comprises a prefabricated main beam and an anti-collision guardrail, wherein a pedestal which is equal to the main beam in length is upwards arranged at the edge of the main beam, the pedestal is upwards raised and higher than the top surface of the main beam, and the top surface of the pedestal is a plane and is provided with a leveling layer. The concrete anti-collision guardrail that the polylith butt joint that the anticollision barrier set up along the bridge length was assembled. The bottom surface of the anti-collision guardrail is a plane corresponding to the shape and the outline of the top surface of the pedestal and is in butt joint with the leveling layer. The main beams at the bottom of the anti-collision guardrail, the pedestal and the pedestal are connected by unbonded prestressed tendons. The pedestal is upwards protruding and is higher than the top surface of girder upper portion layer of mating formation. The anti-collision guardrail in this patent is concrete material, and needs the prefabricated girder of cooperation to use.
In conclusion, in the related patent of prior publication, the structure is assembled to bridge anticollision barrier mostly is concrete material, and need cooperate prefabricated girder or decking to use, and the suitability is limited. Meanwhile, the existing connection between the assembled guardrails is generally fixed by bolts simply, and the tensile capacity between the guardrails cannot meet the requirement and is easy to loosen.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an assembled anti-collision guardrail for a bridge and an implementation method thereof, and aims to solve the problems that the existing assembled structure of the anti-collision guardrail for the bridge is mostly made of concrete materials, the applicability is low, the tensile capacity among guardrails cannot meet the requirement, and looseness is easily caused.
The technical scheme is as follows: the invention relates to an anti-collision guardrail for an assembled bridge, which comprises a guardrail body, wherein the guardrail body is formed by connecting a plurality of guardrail connecting units end to end through an assembling device, each guardrail connecting unit comprises a base, a plurality of vertical fence rods arranged at intervals are fixedly connected to the top surface of the base, and top plates are fixedly connected to the top surfaces of the fence rods;
the assembling device comprises an embedding mechanism and a movable assembling mechanism, wherein the embedding mechanism comprises a plurality of connecting grooves which are arranged side by side and are positioned on the front end surface of the rail rod at the leftmost side of the guardrail connecting unit, the connecting grooves are semicircular grooves, the leftmost side of the connecting grooves is horn-shaped, and a plurality of first connecting through holes are also arranged on the front end surface of the rail rod where the connecting grooves are positioned at intervals; the movable splicing mechanism comprises a plurality of screw rods arranged side by side, one end of each screw rod is fixedly connected with the right side face of the rail rod at the rightmost side of the guardrail connecting unit, the other end of each screw rod is in threaded connection with a nut, sleeves capable of sliding along the screw rods are sleeved on the screw rods, a semicircular slot is fixedly connected to one side of each sleeve, the radius of the semicircular slot is matched with the radius of the screw rod, the semicircular slot and the connecting groove form a circular through groove for inserting the screw rods, one side of each semicircular slot is fixedly connected with the splicing plate, a plurality of second connecting through holes are arranged on the splicing plate at intervals, and the second connecting through holes are the same as the first connecting through holes in number and correspond to the positions of the first connecting through holes.
Further, guardrail connecting element still includes a plurality of bracing, the quantity of bracing is the same with the quantity of railing, the one end and the base fixed connection of bracing, the other end and the railing fixed connection of bracing. The anti-collision capacity of guardrail connecting unit can be strengthened to the bracing, strengthens the resistance to compression effect of guardrail.
Furthermore, the number of the screw rods, the semicircular slots and the connecting grooves is the same.
Furthermore, a rubber ring is sleeved on the screw rod body positioned in the circular through groove. The rubber ring ensures that the screw rod has good damping effect in the circular through groove, and the screw rod cannot transmit force to the assembling device when being slightly vibrated.
Further, the guardrail connecting unit and the assembling device are both made of high-performance FRP materials or steel materials. The high-performance FRP material or steel material replaces the traditional concrete material, so that the anti-collision capacity of the guardrail is enhanced, and the construction efficiency is improved.
The invention also comprises an implementation method of the anti-collision guardrail for the assembled bridge, which comprises the following implementation steps:
(1) fixedly installing a base, a railing rod, a top plate and an inclined strut of a prefabricated guardrail connecting unit into the guardrail connecting unit, and prefabricating a connecting groove and a first connecting through hole of an embedding mechanism on the front end surface of the leftmost railing rod of the guardrail connecting unit;
(2) fixedly connecting the right side surface of the right rail rod of the guardrail connecting unit with a plurality of screw rods arranged side by side, fixedly connecting the sleeve, the semicircular slot and the splicing plate of the movable splicing mechanism into a whole, and enabling the splicing plate to slide along the screw rods by sleeving the sleeve on the screw rods and inserting the screw rods into the semicircular slot;
(3) inserting one end of a screw rod into a connecting groove of an embedding mechanism of an adjacent guardrail connecting unit, screwing a screw cap, sliding a splicing plate along the screw rod, inserting a semicircular slot into the connecting groove from the horn-shaped side of the connecting groove to form a circular through groove for the screw rod to insert into, and corresponding the positions of the first connecting through hole and the second connecting through hole one to one;
(4) and inserting the fastening bolts into the first connecting through hole and the second connecting through hole, and screwing the fastening bolts, so that the end-to-end connection and installation of the adjacent guardrail connecting units are completed.
Has the advantages that:
1) the connection is reliable: the screw rod of the movable assembling mechanism can be conveniently inserted into the trumpet-shaped connecting groove on one side of the embedding mechanism, then the splicing plate is slid, the fastening bolt is screwed, and the anti-collision guardrails can be reliably connected together;
2) the prefabrication degree is high, and the efficiency of construction is high: according to the invention, the adjacent guardrail connecting units can be quickly connected together through the prefabricated guardrail connecting units, the embedding mechanisms and the movable assembling mechanisms in the assembling device, so that the construction is convenient, and the operation is quick and efficient;
3) the application range is wide: the main structure of the invention is made of high-performance FRP material or steel material, and does not need to be matched with a specific prefabricated girder or bridge deck, thus having wide application range.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a guardrail connecting unit;
FIG. 3 is a schematic structural view of the movable assembling mechanism;
FIG. 4 is a schematic view of the insertion mechanism;
FIG. 5 is a schematic structural view of the splicing apparatus;
FIG. 6 is an exploded view of the splicing apparatus;
fig. 7 is a front view of the present invention.
Detailed Description
The invention is further described below with reference to the following figures and examples:
as shown in fig. 1 to 7, the anti-collision guardrail for the assembled bridge comprises a guardrail body, wherein the guardrail body is formed by connecting a plurality of guardrail connecting units 1 end to end through an assembling device 2; the guardrail connecting unit 1 and the assembling device 2 are both made of high-performance FRP materials or steel materials, the high-performance FRP materials or steel materials replace traditional concrete materials, the anti-collision capacity of the guardrail is enhanced, the construction efficiency is improved, a specific prefabricated main beam or bridge deck does not need to be matched, and the application range is wide;
the guardrail connecting unit 1 comprises a base 11, a plurality of vertical guardrail rods 12 arranged at intervals are fixedly connected to the top surface of the base 11, a top plate 13 is fixedly connected to the top surfaces of the guardrail rods 12, the guardrail connecting unit 1 further comprises a plurality of inclined struts 14, the number of the inclined struts 14 is the same as that of the guardrail rods 12, one ends of the inclined struts 14 are fixedly connected with the base 11, the other ends of the inclined struts 14 are fixedly connected with the guardrail rods 12, and the inclined struts 14 can enhance the anti-collision capacity of the guardrail connecting unit 1 and enhance the anti-compression effect of the guardrail;
the assembling device 2 comprises an embedding mechanism 21 and a movable assembling mechanism 22, wherein the embedding mechanism 21 comprises a plurality of connecting grooves 211 which are arranged side by side and are positioned on the front end surface of the leftmost railing rod 12 of the guardrail connecting unit 1, the connecting grooves 211 are semicircular grooves, the leftmost side of the connecting grooves 211 is in a horn shape, the horn-shaped structures are convenient for inserting semicircular inserting grooves 224 in the movable assembling mechanism 22, and a plurality of first connecting through holes 212 are also arranged on the front end surface of the railing rod 12 where the connecting grooves 211 are positioned at intervals;
the movable assembling mechanism 22 comprises a plurality of screws 221 arranged side by side, one end of each screw 221 is fixedly connected with the right side of the rightmost surrounding rail rod 12 of the guardrail connecting unit 1, the other end of each screw 221 is in threaded connection with a nut 222, a plurality of sleeves 223 capable of sliding along the screws 221 are sleeved on the screws 221, a semicircular slot 224 is fixedly connected to one side of each sleeve 223, the number of the screws 221, the number of the semicircular slot 224 and the number of the connecting slots 211 are the same, the radius of the semicircular slot 224 is matched with the radius of the screw 221, the screws 221 are inserted into the semicircular slots 224, one sides of the semicircular slots 224 are fixedly connected with a splicing plate 227, a plurality of second connecting through holes 228 are arranged on the splicing plate 227 at intervals, and the second connecting through holes 228 are the same as the first connecting through holes 212 in number and; the screw 221 of the movable assembling mechanism 22 can be conveniently inserted into the connecting groove 211 with one flared side in the embedding mechanism 21, then the splicing plate 227 is slid, the fastening bolt 229 is screwed, the anti-collision guardrail can be reliably connected together, the semicircular slot 224 and the connecting groove 211 are combined to form a circular through groove 225 for the screw 221 to be inserted into, a rubber ring 226 is sleeved on the rod body of the screw 221 positioned in the circular through groove 225, the rubber ring 226 ensures that the shock absorption effect of the screw 221 in the circular through groove 225 is good, and the screw 221 cannot transmit force to the assembling device 2 when being slightly vibrated; the invention has high prefabrication degree and high construction efficiency, can quickly connect the adjacent guardrail connecting units 1 together through the prefabricated guardrail connecting units 1, the embedding mechanisms 21 and the movable assembling mechanisms 22 in the assembling devices 2, and has convenient construction, quickness and high efficiency;
the invention also comprises an implementation method of the anti-collision guardrail for the assembled bridge, which comprises the following implementation steps:
(1) fixedly installing the base 11, the railing rod 12, the top plate 13 and the inclined strut 14 of the prefabricated guardrail connecting unit 1 into the guardrail connecting unit 1, and prefabricating the connecting groove 211 and the first connecting through hole 212 of the embedding mechanism 21 on the front end surface of the leftmost railing rod 12 of the guardrail connecting unit 1;
(2) fixedly connecting the right side surface of the rightmost rail rod 12 of the guardrail connecting unit 1 with a plurality of screws 221 arranged side by side, fixedly connecting the sleeve 223, the semicircular slot 224 and the splicing plate 227 of the movable splicing mechanism 22 into a whole, and enabling the splicing plate 227 to slide along the screws 221 by sleeving the sleeve 223 on the screws 221 and inserting the screws 221 into the semicircular slot 224;
(3) inserting one end of the screw rod 221 into the connecting groove 211 of the embedding mechanism 21 of the adjacent guardrail connecting unit 1, tightening the screw cap 222, sliding the splicing plate 227 along the screw rod 221, inserting the semicircular insertion groove 224 into the connecting groove 211 from the trumpet-shaped side of the connecting groove 211 to form a circular through groove 225 into which the screw rod 221 is inserted, and corresponding the positions of the first connecting through hole 212 and the second connecting through hole 228 one by one;
(4) the fastening bolts 229 are inserted into the first and second coupling through- holes 212 and 228, and the fastening bolts 229 are tightened, so that the adjacent barrier coupling units 1 are installed end to end.
Claims (6)
1. The utility model provides an anticollision barrier for pin-connected panel bridge which characterized in that: the guardrail comprises a guardrail body, wherein the guardrail body is formed by connecting a plurality of guardrail connecting units end to end through an assembling device, each guardrail connecting unit comprises a base, a plurality of vertical and spaced fencing rails are fixedly connected to the top surface of the base, and top plates are fixedly connected to the top surfaces of the fencing rails;
the assembling device comprises an embedding mechanism and a movable assembling mechanism, wherein the embedding mechanism comprises a plurality of connecting grooves which are arranged side by side and are positioned on the front end surface of the rail rod at the leftmost side of the guardrail connecting unit, the connecting grooves are semicircular grooves, the leftmost side of the connecting grooves is horn-shaped, and a plurality of first connecting through holes are also arranged on the front end surface of the rail rod where the connecting grooves are positioned at intervals; movable assembly mechanism includes a plurality of screws that set up side by side, the one end of screw rod and guardrail connecting element's the rightmost side rail pole right flank fixed connection, the other end threaded connection of screw rod has the nut, all overlaps on a plurality of screw rods to be equipped with can be along the gliding sleeve of screw rod, telescopic one side fixedly connected with semi-circular slot, semi-circular slot's radius and the radius phase-match of screw rod, and semi-circular slot and spread groove form and supply screw rod male circular logical groove, a plurality of semi-circular slot dorsad one side of screw rod all with splice plate fixed connection, the interval is provided with a plurality of second connect the via hole on the splice plate, second connect the via hole with first connect the via hole quantity the same and the position corresponding.
2. The anti-collision guardrail for the assembled bridge of claim 1, wherein: the guardrail connecting unit further comprises a plurality of inclined struts, the number of the inclined struts is the same as that of the fence rods, one ends of the inclined struts are fixedly connected with the base, and the other ends of the inclined struts are fixedly connected with the fence rods.
3. The anti-collision guardrail for the assembled bridge of claim 1, wherein: the screw rods, the semicircular slots and the connecting grooves are the same in number.
4. The anti-collision guardrail for the assembled bridge of claim 1, wherein: the screw rod body in the circular through groove is sleeved with a rubber ring.
5. The crash barrier for assembled bridges of claim 2, wherein: the guardrail connecting unit and the assembling device are both made of high-performance FRP materials or steel materials.
6. The implementation method of the assembled bridge anti-collision guardrail according to claim 2 is characterized by comprising the following implementation steps of:
(1) fixedly installing a base, a railing rod, a top plate and an inclined strut of a prefabricated guardrail connecting unit into the guardrail connecting unit, and prefabricating a connecting groove and a first connecting through hole of an embedding mechanism on the front end surface of the leftmost railing rod of the guardrail connecting unit;
(2) fixedly connecting the right side surface of the right rail rod of the guardrail connecting unit with a plurality of screw rods arranged side by side, fixedly connecting the sleeve, the semicircular slot and the splicing plate of the movable splicing mechanism into a whole, and enabling the splicing plate to slide along the screw rods by sleeving the sleeve on the screw rods and inserting the screw rods into the semicircular slot;
(3) inserting one end of a screw rod into a connecting groove of an embedding mechanism of an adjacent guardrail connecting unit, screwing a screw cap, sliding a splicing plate along the screw rod, inserting a semicircular slot into the connecting groove from the horn-shaped side of the connecting groove to form a circular through groove for the screw rod to insert into, and corresponding the positions of the first connecting through hole and the second connecting through hole one to one;
(4) and inserting the fastening bolts into the first connecting through hole and the second connecting through hole, and screwing the fastening bolts, so that the end-to-end connection and installation of the adjacent guardrail connecting units are completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010080340.5A CN111139739B (en) | 2020-02-05 | 2020-02-05 | Anti-collision guardrail for assembled bridge and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010080340.5A CN111139739B (en) | 2020-02-05 | 2020-02-05 | Anti-collision guardrail for assembled bridge and implementation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111139739A CN111139739A (en) | 2020-05-12 |
| CN111139739B true CN111139739B (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010080340.5A Active CN111139739B (en) | 2020-02-05 | 2020-02-05 | Anti-collision guardrail for assembled bridge and implementation method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111139739A (en) | 2020-05-12 |
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