CN113737651A - Assembled anti-collision guardrail and mounting method thereof - Google Patents
Assembled anti-collision guardrail and mounting method thereof Download PDFInfo
- Publication number
- CN113737651A CN113737651A CN202110873103.9A CN202110873103A CN113737651A CN 113737651 A CN113737651 A CN 113737651A CN 202110873103 A CN202110873103 A CN 202110873103A CN 113737651 A CN113737651 A CN 113737651A
- Authority
- CN
- China
- Prior art keywords
- collision guardrail
- concrete
- crash barrier
- assembled
- pouring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 28
- 238000005266 casting Methods 0.000 claims abstract description 25
- 238000003466 welding Methods 0.000 claims abstract description 20
- 230000004888 barrier function Effects 0.000 claims description 90
- 239000010426 asphalt Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 26
- 230000002787 reinforcement Effects 0.000 abstract description 9
- 238000007493 shaping process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000009415 formwork Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to an installation method of an assembled anti-collision guardrail and the assembled anti-collision guardrail, wherein the prefabricated assembled anti-collision guardrail is conveyed to a position to be installed at the edges of two sides of a bridge, wherein a casting groove is formed at the bottom of the assembled anti-collision guardrail, structural steel bars are arranged in the assembled anti-collision guardrail, and one end of each structural steel bar extends out of the casting groove; clamping the assembled anti-collision guardrail on a beam plate of a bridge, and welding the structural steel bars with the reserved steel bars on the beam plate; and pouring concrete into the pouring groove to fill the pouring groove to form a concrete cushion. The assembled anti-collision guardrail is prefabricated in advance before the installation, and only needs to establish the assembled anti-collision guardrail card on the beam slab when the installation, and after the structural reinforcement of the assembled anti-collision guardrail and the reserved reinforcement of the beam slab are welded, concrete is poured in the pouring groove.
Description
Technical Field
The disclosure relates to the technical field of assembled anti-collision guardrails, in particular to an assembled anti-collision guardrail and an installation method thereof.
Background
The assembled anti-collision guardrail is an important safety protection structure as an accessory structure of a bridge. The fabricated anti-collision guardrail of the bridge in the prior art is usually constructed by a cast-in-place method, namely, a casting mold is erected on the bridge on site, and then the fabricated anti-collision guardrail is cast, so that the fabricated anti-collision guardrail is long in installation period and low in installation efficiency.
Disclosure of Invention
To address the above technical problems or at least partially solve the above technical problems, the present disclosure provides a fabricated crash barrier and a method of installing the same.
The utility model provides an installation method of assembled anticollision barrier, including the following steps:
conveying the prefabricated assembly type anti-collision guardrail to a position to be installed at the edges of two sides of a bridge, wherein a pouring groove is formed at the bottom of the assembly type anti-collision guardrail, structural steel bars are arranged in the assembly type anti-collision guardrail, and one end of each structural steel bar extends out of the pouring groove;
clamping the assembled anti-collision guardrail on a beam plate of the bridge, and welding the structural steel bars with reserved steel bars on the beam plate;
and pouring concrete into the pouring groove to fill the pouring groove to form a concrete cushion.
According to an embodiment of the present disclosure, before the step of transferring the prefabricated assembled crash barrier to the place to be installed at the two side edges of the bridge, the method further comprises the following steps:
and selecting a preset field for prefabricating the assembled anti-collision guardrail, and arranging a pre-buried steel pipe for hoisting in the assembled anti-collision guardrail.
According to an embodiment of the present disclosure, after the step of selecting a preset site for prefabricating the fabricated crash barrier, the method further comprises the steps of:
and hoisting the embedded steel pipe and loading the embedded steel pipe on transportation equipment, so that the prefabricated assembled anti-collision guardrail is transported to the position to be installed through the transportation equipment to be installed.
According to an embodiment of the present disclosure, before the step of pouring concrete into the casting trough to fill the casting trough to form a concrete cushion, the method further includes:
and pouring concrete above the beam plate to form a concrete layer.
According to an embodiment of the present disclosure, after the step of pouring concrete into the casting trough to fill the casting trough to form a concrete cushion, the method further includes: and carrying out smooth cutting on the concrete cushion layer.
The present disclosure also provides an assembled crash barrier installed at both side edges of a bridge; a pouring groove is formed at the bottom of the assembled anti-collision guardrail, structural steel bars are arranged in the assembled anti-collision guardrail, and one end of each structural steel bar extends out of the pouring groove at the bottom of the assembled anti-collision guardrail and is used for being welded and connected with reserved steel bars on a beam plate of the bridge;
and the pouring groove is internally used for filling concrete to form a concrete cushion layer, and the structural steel bars and the reserved steel bars are welded and then the assembled anti-collision guardrail and the beam plate are fixed together.
According to an embodiment of the present disclosure, the bottom of assembled anticollision barrier be provided with water the constant head tank of groove intercommunication, just the top of constant head tank with water the bottom parallel and level in groove, assembled anticollision barrier passes through the constant head tank card is established on the beam slab.
According to an embodiment of the present disclosure, the joint department of beam slab with assembled anticollision barrier is provided with waterproof bed course.
According to an embodiment of the present disclosure, a concrete layer is arranged on the beam slab, an asphalt layer is arranged on the concrete layer, and a waterproof layer is arranged between the concrete layer and the asphalt layer.
According to an embodiment of the present disclosure, an embedded steel pipe is arranged in the assembled anti-collision guardrail.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the present disclosure provides an installation method of an assembled crash barrier and an assembled crash barrier, wherein the installation method comprises the following steps: conveying the prefabricated assembled anti-collision guardrail to a position to be installed at the edges of two sides of a bridge, wherein a pouring groove is formed at the bottom of the assembled anti-collision guardrail, structural steel bars are arranged in the assembled anti-collision guardrail, and one ends of the structural steel bars extend out of the pouring groove; clamping the assembled anti-collision guardrail on a beam plate of a bridge, and welding the structural steel bars with the reserved steel bars on the beam plate; and pouring concrete into the pouring groove to fill the pouring groove to form a concrete cushion. The mounting method of the assembled anti-collision guardrail is characterized in that the assembled anti-collision guardrail is prefabricated in advance before mounting, and when mounting, the assembled anti-collision guardrail is only required to be clamped on a beam plate, and then the structural steel bars of the assembled anti-collision guardrail are welded with the reserved steel bars of the beam plate, and then the guardrail mounting can be completed by pouring concrete in a groove.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a method flow diagram of a method of installing a fabricated crash barrier according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a fabricated crash barrier according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of the prefabricated crash barrier according to the embodiment of the disclosure
Fig. 4-1 to 4-4 are schematic views illustrating the lifting of the fabricated crash barrier according to the embodiment of the present disclosure.
Wherein, 1, the assembled anti-collision guardrail; 11. pouring a trough; 12. structural steel bars; 13. positioning a groove; 14. pre-burying a steel pipe; 15. a concrete cushion; 16. a concrete layer; 2. a beam plate; 21. reserving a steel bar; 22. an asphalt layer; 23. a waterproof layer; 3. a waterproof cushion layer; 4. shaping the steel die; 41. a pull rod is pulled oppositely; 42. a first connecting ear; 43. a first pin shaft; 44. a first formwork support block; 45. a second formwork support block; 46. a third formwork support block; 47. a template supporting seat; 481. a first vertical back edge; 482. a second vertical back edge; 49. longitudinal back ridges; 5. a supporting seat; 6. a drive device; 61. a second connecting ear; 62. a second pin shaft; 63. a pin shaft baffle; 7. fixing the rod; 81. a first formwork support bar; 82. a second formwork support bar; 91. a hanger supporting rod; 92. a spreader stringer; 93. a spreader beam; 94. a sling.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
As shown in fig. 1 and 2, the present disclosure provides a method for installing an assembled crash barrier, including the steps of:
s101: conveying the prefabricated assembled anti-collision guardrail to a position to be installed at the edges of two sides of a bridge, wherein a pouring groove is formed at the bottom of the assembled anti-collision guardrail, structural steel bars are arranged in the assembled anti-collision guardrail, and one ends of the structural steel bars extend out of the pouring groove;
s102: clamping the assembled anti-collision guardrail on a beam plate of a bridge, and welding the structural steel bars with the reserved steel bars on the beam plate;
s103: and pouring concrete into the pouring channel to fill the pouring channel and form a concrete cushion.
Specifically, in the installation method of the fabricated crash barrier of the embodiment, the fabricated crash barrier is prefabricated in advance before installation, and then the prefabricated crash barrier is transported to a to-be-installed position on a bridge for installation; and when the guardrail is installed, the bottom part of the assembled anti-collision guardrail is clamped on the beam plate, the structural steel bars of the assembled anti-collision guardrail are welded with the reserved steel bars of the beam plate, and finally concrete is poured in the pouring groove to complete the installation of the guardrail. Consequently, this assembled anticollision barrier's installation easy operation, installation effectiveness are high, and utilize assembled anticollision barrier's structural reinforcement and the welding of the reservation reinforcing bar of roof beam board can make the installation steadiness of assembled anticollision barrier on the roof beam board stronger.
As shown in fig. 2, the structure of the prefabricated crash barrier in this embodiment is: the bottom of assembled anticollision barrier 1 is formed with waters groove 11, be equipped with structural reinforcement 12 in the assembled anticollision barrier 1, and structural reinforcement 12's one end stretches out from the groove 11 of watering of 1 bottom of assembled anticollision barrier, be used for with the beam slab 2 of bridge on reserve reinforcing bar 21 welded connection, water groove 11 through setting up in the bottom of assembled anticollision barrier 1 promptly, a welding space for providing the welding of being convenient for reserve reinforcing bar 21 and structural reinforcement 12, the installation can be accomplished to rethread concrete filling after the welding is accomplished, in order to form complete assembled anticollision barrier structure on the bridge.
As shown in fig. 2, when the assembly type crash barrier 1 is clamped on the beam plate 2, the positioning groove 13 is arranged at the bottom of the assembly type crash barrier 1, so that the assembly type crash barrier 1 is clamped at one end of the beam plate 2 through the positioning groove 13. The shape of the positioning slot 13 is adapted to the outer contour of one end of the beam 2, and may be, for example, a rectangular slot. And in this embodiment, as shown in fig. 2, the top of the positioning groove 13 is flush with the bottom of the casting trough 11, i.e. the positioning groove 13 and the casting trough 11 are stepped notches.
In addition, in this embodiment. The size of the pouring groove 11 can be 23cm multiplied by 20cm, and the reserved steel bars 21 and the structural steel bars 12 are phi 16 steel bars, so that the anti-pulling of the assembled anti-collision guardrail 1 mainly depends on the phi 16 steel bars in the assembled anti-collision guardrail 1 and single-side welding seams between the phi 16 steel bars pre-embedded in the beam slab 2 to realize reliable connection, and the welding length of the steel bars is guaranteed to be 10 d. When installation, the position of embedded steel bar 21 on the accurate positioning beam slab 2 of assembled anticollision barrier 1, then hoist and mount 1 segmental segment of prefabricated assembled anticollision barrier, on-the-spot template that adopts is fixed a position and is strutted, weld embedded steel bar 21 welding in assembled anticollision barrier 1 and the beam slab 2, after the welding seam detects qualifiedly, lean out the template of both sides, to pouring the concrete in groove 11, the segmental installation is accomplished to the unnecessary concrete of excision at last, construct next segmental segment, accomplish the installation of the assembled anticollision barrier of whole bridge with this circulation.
As shown in fig. 2, a waterproof cushion layer 3 is arranged at the joint of the beam plate 2 and the fabricated crash barrier 1, and the waterproof cushion layer 3 can prevent water and concrete poured into the pouring groove 11 from flowing between the beam plate 2 and the fabricated crash barrier 1 through the positioning groove 13, i.e. has waterproof and sealing functions; and the waterproof cushion layer 3 can also be set to different heights according to actual needs so as to adjust the installation height or position of the fabricated crash barrier 1 on the beam slab 2.
Further, before step S101, namely before the step of transporting the prefabricated crash barriers to the places to be installed on the two side edges of the bridge, the method further comprises the following steps: the selection is predetermine the place and is used for prefabricated assembled crash barrier to set up the pre-buried steel pipe that is used for hoist and mount in assembled crash barrier, make things convenient for follow-up hoist and mount assembled crash barrier. In this step, the method for prefabricating the fabricated crash barrier is substantially the same as the pouring method of the existing fabricated crash barrier, except that the bottom of the fabricated crash barrier of this embodiment is provided with a pouring groove for pouring after the installation and after the embedded steel bars and the structural steel bars are welded.
The specific process structure of the prefabricated crash barrier can be as shown in fig. 3, the template is used for pouring and positioning, the specific template of the prefabricated crash barrier 2 adopts a shaping steel die, and the length of each section of the shaping steel die 4 is 5m (the clear length in the template); the prefabricated anti-collision guardrail 1 adopts a construction process of 'inverted formwork'. The shaping steel die 4 is erected on the supporting seat 5 in the same way as the prefabricated beam slab 2. After the shaping steel die 4 is installed, the embedded steel pipe 14 is arranged along the gravity center position of the assembled anti-collision guardrail 1 as required and is used as a reserved hole channel for hoisting. The reserved hole channels are pre-buried one above the other on the cross section of the assembled anti-collision guardrail and are used as forward hoisting and backward hoisting points. Regarding the setting of the lifting point, in order to facilitate the hoisting and turning over of the assembled crash barrier 1, two pre-buried steel pipes 14 are arranged along the center of gravity of the assembled crash barrier 1 on the cross section of the assembled crash barrier 1 to form two pre-buried pore channels, such as the lifting point a and the lifting point B shown in fig. 3. Because the assembled anti-collision guardrail 1 is prefabricated by adopting an inversion method when being prefabricated in a factory, the field installation needs to be carried out in the positive direction. Therefore, the lifting point should be respectively arranged at the bottom (lifting point a) and the top (lifting point B) of the assembled crash barrier 1 in combination with the above two working conditions, wherein the lifting point a is used as a lifting point for taking out and turning over the assembled crash barrier 1, and the lifting point B is used as a lifting point for on-site hoisting of the assembled crash barrier 1. During hoisting, the steel bar with the steel wire rope is inserted into the hoisting point A or the hoisting point B, and two points of hoisting are performed.
As shown in fig. 3, one side of design steel mould 4 is provided with first connection ear 42, is equipped with first round pin axle 43 in the first connection ear 42 for rotate and connect design steel mould 4 and drive device 6, thereby adopt design steel mould 4 location to pour behind the shaping assembled crash barrier 1, design steel mould 4 can lean out, thereby conveniently pour the concrete in to watering trough 11. In addition, the supporting seat 5 and the driving device 6 are rotatably connected through a second connecting lug 61 and a second pin 62. One side of the second connecting ear 61 is further provided with a pin baffle 63 for connecting with the supporting seat 5 at the bottom.
In addition, the two shaping steel dies 4 for pouring and positioning can be fixed by adopting the pull rod 41. The bottom of the shaping steel die 4 is further provided with a second template supporting block 45 and a third template supporting block 46 for supporting the shaping steel die 4. The bottom of the second template supporting block 45 and the third template supporting block 46 is provided with a template supporting seat 47. The both sides of design steel mould 4 are provided with the stupefied 481 of first vertical back of the body and the stupefied 482 of the vertical back of the body of second, and the outside of the stupefied 481 of first vertical back of the body and the stupefied 482 of the vertical back of the body of second is provided with first template bracing piece 81 and second template bracing piece 82, and the top of design steel mould 4 has first template supporting shoe 44, and it is fixed on the second template bracing piece 82 of design steel mould 4 both sides. Longitudinal back ridges 49 are provided in the first 481 and second 482 vertical back ridges. The end part of the shaping steel die 4 is also provided with an end die, and a fixed rod 7 is arranged on the end die.
When prefabricating assembled anticollision barrier, the prefabrication can be concentrated to assembled anticollision barrier, and the concrete adopts and concentrates the system of mixing, transports to prefabricated field with the concrete transport vechicle, vibrates and adopts bayonet vibrating rod. And the pouring adopts a continuous pouring mode of horizontal layering and oblique segmentation. And (4) covering and maintaining the concrete by adopting geotextile after the form is removed, wherein the maintenance time is not less than 7 d. And when the strength of the concrete reaches 80% of the designed strength, the concrete can be transported out of the pit for stacking, and the concrete is dispatched and transported by adopting a special lifting appliance and stored in a centralized manner.
Further, after step S101, namely after the step of selecting a preset site for prefabricating the fabricated crash barrier, the method further comprises the following steps: and hoisting the embedded steel pipe and loading the embedded steel pipe on the transportation equipment so as to convey the prefabricated assembled anti-collision guardrail to the position to be installed through the transportation equipment. And (3) transporting the assembled anti-collision guardrail to the position to be installed by using a transport vehicle, wherein the assembled anti-collision guardrail is transported carefully so as not to be broken. The assembled anti-collision guardrail is hoisted to the special transportation jig frame by using the small-sized prefabricated yard gantry crane, then hoisted to a 20t transportation vehicle, and transported to a position of a to-be-installed hole on a bridge.
Then, a 10t special mobile gantry crane is adopted as a hoisting system. As shown in fig. 4-1 to 4-4, the process of lifting and erecting the fabricated crash barrier on the beam panel is: the assembled anti-collision guardrail 1 is sleeved by the special lifting appliance for mounting the assembled anti-collision guardrail, and the two sides of the assembled anti-collision guardrail are lifted, so that the assembled anti-collision guardrail 1 stably and stably sits on the beam plate 2. In this embodiment, as shown in fig. 4-1, the spreader includes slings 94, spreader support bars 91, spreader longitudinal beams 92, and spreader cross beams 93. After preliminary location is accomplished, for making assembled anticollision barrier 1 and the complete parallel coincidence of line of location to ensure that assembled anticollision barrier is linear smooth-going, can adopt telescopic adjusting rod to adjust between assembled anticollision barrier 1 and beam slab 2, support and use the draw-in groove fixed to carry out accurate adjustment linearity. After the linear adjustment is completed, firstly, the steel bar is fixed in advance by spot welding, then, the steel bar is fully welded by an electric welding machine, and the welding joint between the embedded steel bar and the structural steel bar is fully welded. Then pour the inslot and pour concrete and form the concrete cushion after the welding is accomplished, in this process, accomplish a antithetical couplet assembled crash barrier installation back, carry out the concrete placement operation in the watering groove, set up the pouring template in watering groove department, the bottom of pouring the template and assembled crash barrier's sideline parallel and level, the top of pouring the template is apart from about 10cm of assembled crash barrier's sideline, make things convenient for the concrete to get into smoothly and pour the template and vibrate, the concrete intensity grade of watering the inslot is the same with the bridge deck pavement concrete's of bridge intensity grade, be C50.
In this embodiment, assembled anticollision barrier when hoist and mount, scribble the foamed glue of 0.5cm thickness on two sections adjacent assembled anticollision barrier's contact surface, prevents that assembled anticollision barrier's piece department from leaking.
As shown in fig. 2, before the step of pouring concrete into the casting trough 11 to fill the casting trough 11 to form the concrete cushion 15, the method further includes: concrete is poured above the beam panels 2 to form a concrete layer 16, wherein the concrete layer 16 is integrally poured with the concrete cushion 15.
Further, as shown in fig. 2, after the step of pouring concrete into the casting trough 11 to fill the casting trough 11 to form the concrete cushion 15, the method further includes: the concrete cushion 15 is cut flatly, and a mechanical blade cutting machine can be used for cutting when cutting redundant concrete in the casting groove 11; and after the maintenance is finished, popping out a cutting line on the casting groove by using an ink line in advance, and ensuring that the line shape is straight after the cutting.
As shown in fig. 2, this embodiment still provides an assembled crash barrier 1, assembled crash barrier 1's bottom is formed with waters groove 11, be equipped with structural reinforcement 12 in the assembled crash barrier 1, and structural reinforcement 12's one end stretches out from 1 bottom of assembled crash barrier waters groove 11, be used for with the beam slab 2 of bridge on reserve reinforcing bar 21 welded connection, water groove 11 promptly through setting up in the bottom of assembled crash barrier 1, be used for providing the welding space of being convenient for weld reserve reinforcing bar 21 and structural reinforcement 12, can accomplish the installation through concrete filling after the welding is accomplished.
As shown in fig. 2, when the assembly type crash barrier 1 is clamped on the beam plate 2, the positioning groove 13 is arranged at the bottom of the assembly type crash barrier 1, so that the assembly type crash barrier 1 is clamped at one end of the beam plate 2 through the positioning groove 13. The shape of the positioning slot 13 is adapted to the outer contour of one end of the beam 2, and may be, for example, a rectangular slot. And in this embodiment, as shown in fig. 2, the top of the positioning groove 13 is flush with the bottom of the casting trough 11, i.e. the positioning groove 13 and the casting trough 11 are stepped notches.
In addition, in this embodiment. The size of the pouring groove 11 can be 23cm multiplied by 20cm, and the reserved steel bars 21 and the structural steel bars 12 are phi 16 steel bars, so that the anti-pulling of the assembled anti-collision guardrail 1 mainly depends on the phi 16 steel bars in the assembled anti-collision guardrail and the phi 16 steel bars pre-embedded in the beam slab to realize reliable connection, and the welding length of the steel bars is ensured to be 10 d.
As shown in fig. 2, a concrete layer 16 is cast on the beam slab 2, the concrete layer 16 is cast before the concrete cushion 15, an asphalt layer 22 is disposed on the concrete layer 16, and a waterproof layer 23 is disposed between the concrete layer 16 and the asphalt layer 22.
As shown in fig. 2, at least two reserved holes are formed in the assembled crash barrier 1, and pre-buried steel pipes 14 are arranged in the reserved holes and used for inserting steel bars with steel wire ropes into the pre-buried steel pipes to hoist the assembled crash barrier for installation.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A mounting method of an assembled anti-collision guardrail is characterized by comprising the following steps:
conveying the prefabricated assembly type anti-collision guardrail to a position to be installed at the edges of two sides of a bridge, wherein a pouring groove is formed at the bottom of the assembly type anti-collision guardrail, structural steel bars are arranged in the assembly type anti-collision guardrail, and one end of each structural steel bar extends out of the pouring groove;
clamping the assembled anti-collision guardrail on a beam plate of the bridge, and welding the structural steel bars with reserved steel bars on the beam plate;
pouring concrete into the casting trough to fill the casting trough and form a concrete cushion.
2. The method for installing the fabricated crash barrier as recited in claim 1, further comprising the following steps before the step of transferring the prefabricated fabricated crash barrier to the site to be installed at both side edges of the bridge:
and selecting a preset field for prefabricating the assembled anti-collision guardrail, and arranging a pre-buried steel pipe for hoisting in the assembled anti-collision guardrail.
3. The method of installing a fabricated crash barrier of claim 2, wherein after the step of selecting a preset field for prefabricating the fabricated crash barrier, the method further comprises:
and hoisting the embedded steel pipe and loading the embedded steel pipe on transportation equipment, so that the prefabricated assembled anti-collision guardrail is transported to the position to be installed through the transportation equipment to be installed.
4. The method of installing a fabricated crash barrier of claim 1, wherein prior to the step of pouring concrete into the casting trough to fill the casting trough to form a concrete cushion, the method further comprises:
and pouring concrete above the beam plate to form a concrete layer.
5. The method of installing a fabricated crash barrier of claim 1, wherein after the step of pouring concrete into the casting trough to fill the casting trough to form a concrete cushion, the method further comprises: and carrying out smooth cutting on the concrete cushion layer.
6. An assembled anti-collision guardrail (1) is arranged at the edges of two sides of a bridge; the anti-collision guardrail structure is characterized in that a pouring groove (11) is formed at the bottom of the assembled anti-collision guardrail (1), structural steel bars (12) are arranged in the assembled anti-collision guardrail (1), and one ends of the structural steel bars (12) extend out of the pouring groove (11) and are used for being welded and connected with reserved steel bars (21) on a beam plate (2) of a bridge;
the pouring trough (11) is internally filled with concrete to form a concrete cushion (15) and used for fixing the assembled anti-collision guardrail (1) and the beam slab (2) together after the structural steel bars (12) and the reserved steel bars (21) are welded.
7. The fabricated crash barrier as recited in claim 5, characterized in that the bottom of the fabricated crash barrier (1) is provided with a positioning groove (13) communicated with the casting groove (11), and the top of the positioning groove (13) is flush with the bottom of the casting groove (11), and the fabricated crash barrier (1) is clamped on the beam plate (2) through the positioning groove (13).
8. The fabricated crash barrier as recited in claim 7, characterized in that a waterproof cushion layer (3) is provided at the joint of the beam plate and the fabricated crash barrier (1).
9. The fabricated crash barrier according to claim 5, characterized in that a concrete layer (16) is provided on the beam slab (2), an asphalt layer (22) is provided on the concrete layer, and a waterproof layer (23) is provided between the concrete layer (16) and the asphalt layer (22).
10. The fabricated crash barrier according to claim 5, characterized in that pre-embedded steel pipes (14) are provided in the fabricated crash barrier (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110873103.9A CN113737651A (en) | 2021-07-30 | 2021-07-30 | Assembled anti-collision guardrail and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110873103.9A CN113737651A (en) | 2021-07-30 | 2021-07-30 | Assembled anti-collision guardrail and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113737651A true CN113737651A (en) | 2021-12-03 |
Family
ID=78729593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110873103.9A Pending CN113737651A (en) | 2021-07-30 | 2021-07-30 | Assembled anti-collision guardrail and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113737651A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315286A1 (en) * | 1993-05-07 | 1994-11-17 | Sps Schutzplanken Gmbh | Prefabricated anchor element, in particular for passive protection devices |
| JP2015178710A (en) * | 2014-03-19 | 2015-10-08 | 横河工事株式会社 | Wall handrail construction method and wall handrail |
| CN205934713U (en) * | 2016-07-07 | 2017-02-08 | 上海公路桥梁（集团）有限公司 | Prefabricated pin -connected panel anticollision wall |
| CN205954478U (en) * | 2016-08-18 | 2017-02-15 | 安徽省交通规划设计研究总院股份有限公司 | Assembled concrete barrier and adopt its bridge |
| CN107489098A (en) * | 2017-07-06 | 2017-12-19 | 浙江交工宏途交通建设有限公司 | Concrete prefabricated solder type guardrail and construction method of installation |
| CN110205929A (en) * | 2019-05-20 | 2019-09-06 | 浙江交工宏途交通建设有限公司 | A kind of precast concrete assembly guardrail and installation method |
| CN110872813A (en) * | 2019-12-20 | 2020-03-10 | 中交第一公路勘察设计研究院有限公司 | Precast concrete guardrail connecting structure and assembling method |
-
2021
- 2021-07-30 CN CN202110873103.9A patent/CN113737651A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315286A1 (en) * | 1993-05-07 | 1994-11-17 | Sps Schutzplanken Gmbh | Prefabricated anchor element, in particular for passive protection devices |
| JP2015178710A (en) * | 2014-03-19 | 2015-10-08 | 横河工事株式会社 | Wall handrail construction method and wall handrail |
| CN205934713U (en) * | 2016-07-07 | 2017-02-08 | 上海公路桥梁（集团）有限公司 | Prefabricated pin -connected panel anticollision wall |
| CN205954478U (en) * | 2016-08-18 | 2017-02-15 | 安徽省交通规划设计研究总院股份有限公司 | Assembled concrete barrier and adopt its bridge |
| CN107489098A (en) * | 2017-07-06 | 2017-12-19 | 浙江交工宏途交通建设有限公司 | Concrete prefabricated solder type guardrail and construction method of installation |
| CN110205929A (en) * | 2019-05-20 | 2019-09-06 | 浙江交工宏途交通建设有限公司 | A kind of precast concrete assembly guardrail and installation method |
| CN111962390A (en) * | 2019-05-20 | 2020-11-20 | 浙江交工宏途交通建设有限公司 | Precast concrete assembled guardrail and mounting method |
| CN110872813A (en) * | 2019-12-20 | 2020-03-10 | 中交第一公路勘察设计研究院有限公司 | Precast concrete guardrail connecting structure and assembling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101761229B (en) | Method for constructing hollow overlapped rib plate support system | |
| CN107489098A (en) | Concrete prefabricated solder type guardrail and construction method of installation | |
| CN108797638A (en) | Integrated assembled piping lane based on composite bottom board and its construction method | |
| CN114770706B (en) | Light T-beam prefabrication equipment and prefabrication installation construction method | |
| CN210263131U (en) | Assembled is from stagnant water underground pipe gallery structure | |
| CN215760447U (en) | Reinforcing structure for anti-ridge template device and anti-ridge template device | |
| CN106049704B (en) | Prefabrication cast-in-place combined type fair-faced concrete outer wall structure and construction method | |
| CN109098207B (en) | Template system of prefabricated gas cabin of underground comprehensive pipe rack and construction method | |
| CN111173035A (en) | Fabricated underground station single-side prefabricated wall plate and vertical rotation installation method | |
| CN113737651A (en) | Assembled anti-collision guardrail and mounting method thereof | |
| CN113463683A (en) | Double-pipe gallery slip form trolley and double-pipe gallery construction method | |
| CN108533283A (en) | A kind of two lining trolley of self-control and its application in repairing impaired tunnel | |
| CN210288002U (en) | But reuse is construction way temporarily | |
| CN111074893A (en) | Construction system and construction method of concrete cushion layer of river levee dam | |
| KR100973236B1 (en) | Elevator Pit Structure | |
| CN113481768B (en) | Method for adding railway line to existing wharf trestle | |
| CN211849445U (en) | Construction system of river levee dam concrete bed course | |
| CN212376290U (en) | Post-cast constructional column concrete lifting device | |
| CN114561873A (en) | Bridge high pier construction method | |
| CN113775183A (en) | Assembled adjustable beam steel bar binding bracket for building construction and use method thereof | |
| CN107253270A (en) | A kind of new prefabricated U-shaped beam and its method for prefabricating | |
| CN113502750A (en) | Construction process of pouring-preventing bubbles for pouring highway engineering bridge | |
| CN202766936U (en) | Multifunctional transporting device for ballastless track base plate construction | |
| CN212897183U (en) | Inspection pit stand | |
| CN217974210U (en) | Template assembly for underwater breast wall construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211203 |