CN114737475A

CN114737475A - Assembled energy-dissipation anti-collision wall and assembling method thereof

Info

Publication number: CN114737475A
Application number: CN202210471174.0A
Authority: CN
Inventors: 崔成涛; 杨威; 刘杰; 王双武; 丛潇然; 董静
Original assignee: Xian University of Technology
Current assignee: Xian University of Technology; Sinohydro Bureau 14 Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-07-12
Anticipated expiration: 2042-04-28
Also published as: CN114737475B

Abstract

The invention discloses an assembled energy-dissipation anti-collision wall and an assembling method thereof, and relates to the technical field of traffic buildings. According to the assembled energy-dissipation anti-collision wall, when the anti-collision wall is impacted, the anti-collision wall drives the sliding assembly to slide, the energy dissipation effect is achieved through deformation of the energy dissipation assembly, the integral rigidity requirement of the anti-collision wall is lowered, excessive damage and damage caused by rigid collision are avoided, and due to the adoption of the assembled installation, the cost is lowered, the construction is convenient and convenient to popularize, and the later-period maintenance is also convenient.

Description

Assembled energy-dissipation anti-collision wall and assembling method thereof

Technical Field

The invention relates to the technical field of traffic buildings, in particular to an assembled energy-dissipation anti-collision wall and an assembling method thereof.

Background

As society develops, vehicles on roads are gradually increased and driving speed is gradually increased, which also leads to the gradual increase of traffic accidents in recent years, and because the bridge is located above the ground, no safeguard measure is usually provided below the bridge, and the survival chance of the driver is greatly reduced once the traffic accident occurs. Therefore, the anti-collision wall is one of the main structures of the bridge and is an important safety protection and guarantee structure, when a vehicle is out of control to collide with the anti-collision wall due to various reasons, the anti-collision wall can absorb energy through the deformed anti-collision wall, or the driving track of the vehicle is changed through the ascending of the vehicle, so that the collision energy is reduced, and the accident severity is reduced. However, the prior anti-collision wall has the following problems in the using process:

1. the anti-collision wall is constructed by adopting a cast-in-place method, the auxiliary installation equipment is more, the construction process is complicated, the construction progress is slower, the construction quality is difficult to effectively ensure, and the cast-in-place concrete is easy to generate a die running phenomenon, so that the anti-collision wall is uneven, and the appearance of a bridge is influenced;

2. the existing bridge anti-collision structure is high in overall rigidity, large damage and damage are easy to occur when collision and collision occur, and later maintenance and repair are complex.

Therefore, designing an energy dissipation anti-collision wall which can be installed quickly and has good protection performance is a problem which needs to be solved urgently at present.

Disclosure of Invention

The invention aims to provide an assembled energy dissipation anti-collision wall and an assembling method thereof, which are used for solving the problems in the prior art, realizing assembled installation of the energy dissipation anti-collision wall, reducing cost and expense, facilitating construction and facilitating later maintenance and popularization.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides an assembled energy-dissipation anti-collision wall which comprises an anti-collision wall body, a plurality of sliding assemblies and energy-dissipation assemblies, wherein the sliding assemblies and the energy-dissipation assemblies are detachably arranged between the anti-collision wall body and a bridge pavement, the sliding assemblies and the energy-dissipation assemblies are factory prefabricated parts, the sliding assemblies can enable the anti-collision wall body and the bridge pavement to move relatively, and the energy-dissipation assemblies can offset collision energy through deformation.

Preferably, the sliding assembly comprises a sliding groove and a sliding block, the sliding block is connected in the sliding groove in a clamping mode, the sliding block can slide in the sliding groove, the sliding groove is connected with the anti-collision wall body or the bridge pavement through a bolt, and the sliding block is connected with the bridge pavement or the anti-collision wall body through a bolt.

Preferably, at least one end face of the sliding groove is connected with a baffle plate through a bolt.

Preferably, the slider is I-shaped, the upper plate of the slider is at least symmetrically provided with two pairs of bolt holes, the joint of the bottom plate and the middle plate is an inclined plane, the cross-sectional shape of the sliding groove is matched with that of the slider, and the bolt is provided with a gasket.

Preferably, the length of the sliding groove is at least 5cm greater than the length of the sliding block.

Preferably, the energy dissipation assembly comprises an S-shaped plate and bolts, and two ends of the S-shaped plate are connected with the bridge pavement or the anti-collision wall body through the bolts respectively.

Preferably, the width of the plate of the S-shaped plate is at least 10cm, the length of the projection surface is at least 15cm, two pairs of bolts are arranged at each end of the S-shaped plate, and gaskets are arranged on the bolts.

Preferably, the S-shaped section of the S-shaped plate is parallel to the cross section of the bridge pavement.

Preferably, a plurality of energy dissipation assemblies are arranged at equal intervals, the energy dissipation assemblies form the energy dissipation assembly string, and the sliding assemblies are located at two ends of the energy dissipation assembly string.

The invention also relates to an assembly method of the assembled energy-dissipation anti-collision wall, which is based on the assembled energy-dissipation anti-collision wall and comprises the following steps:

step 1, prefabricating a sliding assembly and an energy dissipation assembly according to design size requirements, and respectively installing bolts and washers in bolt holes in the sliding assembly and the energy dissipation assembly;

step 2, determining the number and positions of bolt holes in the anti-collision wall and the bridge pavement according to the number and layout of bolts in the sliding assembly and the energy dissipation assembly;

and 3, hoisting the anti-collision wall above the sliding assembly and the energy dissipation assembly through a hoisting machine, and enabling the bottom of the bridge pavement and the bottom of the anti-collision wall to be respectively connected with the sliding assembly and the energy dissipation assembly through bolts to obtain the assembled energy-dissipation anti-collision wall.

Compared with the prior art, the invention has the following technical effects:

according to the assembled energy dissipation anti-collision wall, when the anti-collision wall is impacted, the anti-collision wall drives the sliding assembly to slide, the energy dissipation effect is achieved through deformation of the energy dissipation assembly, the requirement on the overall rigidity of the anti-collision wall is lowered, excessive damage and damage caused by rigid collision are avoided, and the assembled type anti-collision wall is assembled, so that the cost and expense are reduced, the construction is convenient and convenient to popularize, and the later maintenance is also convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall assembly structure of the fabricated energy-dissipating anti-collision wall according to the present invention;

FIG. 2 is a schematic view of a partial structure of the fabricated energy-dissipating impact wall according to the present invention;

FIG. 3 is a schematic view of the sliding assembly of the present invention;

FIG. 4 is a schematic view of the internal structure of the sliding assembly of the present invention;

figure 5 is a schematic view of the energy dissipater assembly of the present invention;

wherein: the method comprises the following steps of 1-an anti-collision wall body, 2-a bridge pavement, 3-a chute, 4-a sliding block, 5-a baffle, 6-an S-shaped plate, 7-a bolt and 8-a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1 to 5: this embodiment provides a but assembled energy dissipation anticollision wall, including anticollision wall body 1, slip subassembly and energy dissipation subassembly, can dismantle between anticollision wall body 1 and the bridge road surface 2 and be provided with a plurality of slip subassembly and energy dissipation subassembly, slip subassembly and energy dissipation subassembly are the mill's prefab, and the slip subassembly can make

anticollision wall body

1 and 2 relative movements in bridge road surface, and the energy dissipation subassembly can offset the striking energy through warping.

The sliding assembly comprises a sliding groove 3 and a sliding block 4, the sliding groove 3 is internally connected with the sliding block 4 in a clamping mode, the sliding block 4 can slide in the sliding groove 3, the sliding groove 3 is connected with an anti-collision wall body 1 or a bridge pavement 2 through a bolt 7, the sliding groove 3 is connected with the anti-collision wall body 1 in the embodiment, pavement positioning is convenient to achieve, and the sliding block 4 is connected with the bridge pavement 2 or the anti-collision wall body 1 through the bolt 7. The chute 3 is in a convex shape, at least one end face of the chute 3 is connected with a baffle 5 through a bolt 7 (the two end faces of the chute 3 are connected with the baffle 5 through the bolt 7), the assembly of the sliding block 4 is convenient, and the effects of blocking and overturning resistance are achieved. The slider 4 is the I shape, and the last at least symmetry of slider 4 is provided with two pairs of bolt holes, and the junction of bottom plate and medium plate is the inclined plane, is in order to guarantee the slider 4 assembly of being convenient for, when crashproof wall body 1 received the striking, makes slider 4 only along lateral shifting in spout 3, and the removal of restriction slider 4 on the vertical direction also makes slider 4 reduce the sharp-pointed friction with spout 3 at the slip in-process, avoids slider 4 to appear wearing and tearing destruction in subsequent use. The cross-sectional shape of the sliding groove 3 is matched with that of the sliding block 4, and all the bolts 7 are provided with washers 8. The length of the sliding chute 3 is at least 5cm greater than that of the sliding block 4, the anti-collision wall body 1 is arranged in a segmented mode, the length of the one-span anti-collision wall body 1 in the embodiment is 200cm, the height of the one-span anti-collision wall body is 85cm, and the width of a projection surface of the one-span anti-collision wall body is 45 cm; the overall height of the chute 3 is 8cm, the width of the bottom surface is 26cm, and the length is 31 cm; the whole height of the sliding block 4 is 10cm, the maximum width is 18cm, and the maximum length is 20 cm; wherein, the length of the sliding chute 3 is 8cm larger than that of the sliding block 4.

The energy dissipation assembly comprises an S-shaped plate 6 and bolts 7, and two ends of the S-shaped plate 6 are connected with the bridge pavement 2 or the anti-collision wall 1 through the bolts 7 respectively. The S-shaped plate 6 is a steel plate, the width of the plate of the S-shaped plate 6 is at least 10cm, the length of the projection surface is at least 15cm, the width of the plate of the S-shaped plate 6 in the embodiment is 15cm, the length of the projection surface is 24cm, the thickness of the plate is 1cm, and the overall height of the S-shaped plate 6 is 13 cm. Each end of the S-shaped plate 6 is provided with two pairs of bolts 7, the bolts 7 are provided with gaskets 8, and the gaskets 8 can play a role in reducing pressure, increasing friction and fixing. The S-shaped section of the S-shaped plate 6 is parallel to the cross section of the bridge pavement 2.

The energy dissipation assemblies are arranged at equal intervals, the energy dissipation assembly strings are formed by the energy dissipation assemblies, the sliding assemblies are located at two ends of the energy dissipation assembly strings, and the sliding assemblies are located at two ends of the energy dissipation assembly strings; when the anti-collision device is used, the sliding assemblies are positioned at two ends of the single-span anti-collision wall body 1, so that the whole-span anti-collision wall body 1 can be more smoothly moved by collision, and the energy dissipation effect of the energy dissipation assembly string is exerted to the maximum extent.

step 1, prefabricating a sliding assembly and an energy dissipation assembly according to design size requirements, and installing bolts 7 and washers 8 in bolt holes in the sliding assembly and the energy dissipation assembly respectively; the S-shaped plate 6, the sliding block 4, the sliding groove 3, the baffle plate 5, the bolt 7 and the gasket 8 can be produced in a factory and then transported and assembled, and both production conditions and production quality can be guaranteed.

Step 2, determining the number and positions of the bolt holes in the anti-collision wall body 1 and the bridge pavement 2 according to the number and layout of the bolts 7 in the sliding assembly and the energy dissipation assembly;

and 3, hoisting the anti-collision wall body 1 to the position above the sliding assembly and the energy dissipation assembly through a hoisting machine, and respectively sliding the sliding assembly and the energy dissipation assembly on the bridge pavement 2 and the bottom of the anti-collision wall body 1 through bolts 7 to obtain the assembled energy-dissipation anti-collision wall.

The assembly type energy dissipation anti-collision wall of the embodiment is assembled, so that the cost is reduced, the construction is convenient and easy to popularize, and the later maintenance is also convenient; the slidable scope of the crashproof wall body 1 of multiplicable anticollision wall body to a certain extent of slip subassembly, spout 3 still plays the positioning action with 2 assembling process on bridge road surface, and the baffle 5 of 3 terminal surfaces of spout can be convenient for the assembly of slider 4, plays the effect of blockking with antidumping, prevents that crashproof wall from toppling when 1 deformation of crashproof wall body was too big when slider 4 roll-off spout 3 and received strong striking. When crashproof wall body 1 received the car striking, crashproof wall body 1 drives slider 4 and slides in spout 3, thereby makes the S template 6 that links to each other with crashproof wall body 1 produce and warp and play the energy dissipation effect, reduces crashproof wall body 1' S bulk rigidity, avoids hard collision to cause too big injury and harm.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. The utility model provides an assembled energy dissipation anticollision wall which characterized in that: including crashproof wall body, slip subassembly and energy dissipation subassembly, can dismantle between crashproof wall body and the bridge road surface and be provided with a plurality of slip subassembly with the energy dissipation subassembly, the slip subassembly with the energy dissipation subassembly is the mill's prefab, the slip subassembly can make crashproof wall body with the relative movement of bridge road surface, the energy dissipation subassembly can offset the impact energy through warping.

2. The fabricated energy dissipatable impact wall of claim 1, wherein: the sliding assembly comprises a sliding groove and a sliding block, the sliding block is connected in the sliding groove in a clamping mode, the sliding block can slide in the sliding groove, the sliding groove is connected with the anti-collision wall body or the bridge pavement through a bolt, and the sliding block is connected with the bridge pavement or the anti-collision wall body through a bolt.

3. The fabricated energy dissipatable impact wall of claim 2, wherein: at least one end face of the sliding groove is connected with a baffle plate through a bolt.

4. The fabricated energy dissipatable impact wall of claim 2, wherein: the slider is I-shaped, the upper plate of the slider is at least symmetrically provided with two pairs of bolt holes, the joint of the bottom plate and the middle plate is an inclined plane, the cross-sectional shape of the sliding groove is matched with that of the slider, and the bolt is provided with a gasket.

5. The fabricated energy dissipatable impact wall of claim 2, wherein: the length of the sliding chute is at least 5cm greater than that of the sliding block.

6. The fabricated energy-dissipatable impact wall of claim 1, wherein: the energy dissipation assembly comprises an S-shaped plate and bolts, and two ends of the S-shaped plate are connected with the bridge pavement or the anti-collision wall body through the bolts respectively.

7. The fabricated energy-dissipatable impact wall of claim 6, wherein: the plate width of the S-shaped plate is at least 10cm, the length of the projection surface is at least 15cm, two pairs of bolts are arranged at each end of the S-shaped plate, and gaskets are arranged on the bolts.

8. The fabricated energy dissipatable impact wall of claim 6, wherein: and the S-shaped section of the S-shaped plate is parallel to the cross section of the bridge pavement.

9. The fabricated energy-dissipatable impact wall of claim 1, wherein: the energy dissipation assemblies are arranged at equal intervals and form the energy dissipation assembly string, and the sliding assemblies are located at two ends of the energy dissipation assembly string.

10. An assembly method of an assembled energy-dissipating anti-collision wall based on any one of claims 1 to 9, characterized in that: the method comprises the following steps: