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

Abstract

The invention discloses a prefabricated energy-dissipative anti-collision wall and an assembling method thereof, which relate to the technical field of traffic buildings, and include an anti-collision wall, a sliding component and an energy-dissipating component. Several sliding components and energy dissipation components are provided, the sliding components and energy dissipation components are factory prefabricated parts, the sliding components can make the anti-collision wall and the bridge road surface move relatively, and the energy dissipation components can offset the impact energy through deformation. In the assembled energy-dissipating anti-collision wall of the present invention, when the anti-collision wall is hit, the anti-collision wall drives the sliding component to slide, and the energy dissipation effect is achieved through the deformation of the energy-dissipating component, thereby reducing the overall rigidity requirement of the anti-collision wall. To avoid excessive damage and damage caused by hard collision, the use of prefabricated installation reduces costs, facilitates construction and facilitates popularization, and facilitates later maintenance and maintenance.

Description

A prefabricated energy-dissipating anti-collision wall and its assembling method

technical field

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

Background technique

With the development of society, the number of vehicles on the road has gradually increased and the speed has gradually increased, which has also led to a gradual increase in traffic accidents in recent years. Since the bridge is located on the ground, there are usually no safeguards below it. In the event of a traffic accident, the driver's Chances of survival are greatly reduced. Therefore, as one of the main structures of the bridge, the anti-collision wall is an important safety protection structure. When the vehicle loses control and hits the anti-collision wall for various reasons, it can absorb energy through the deformed anti-collision wall, or pass the vehicle through the anti-collision wall. Ascent changes the vehicle's trajectory, reduces collision energy, and reduces accident severity. However, the existing anti-collision wall has the following problems during use:

1. The anti-collision wall is constructed by the cast-in-place method. There are many auxiliary installation equipment and complicated construction technology, which leads to slow construction progress and difficulty in effectively guaranteeing the construction quality. Uneven, affecting the appearance of the bridge;

2. The overall rigidity of the existing bridge anti-collision structure is relatively large. When a collision occurs, it is prone to large damage and damage, and the later maintenance and repair are more complicated.

Therefore, designing an energy-dissipative anti-collision wall that can be quickly installed and has good protective performance is an urgent problem to be solved at present.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a prefabricated energy-dissipating anti-collision wall and an assembling method thereof, so as to solve the problems existing in the above-mentioned prior art, so that the pre-fabricated installation of the energy-dissipating anti-collision wall is realized, the cost is reduced, the construction is convenient, and the Post-maintenance and promotion.

For achieving the above object, the present invention provides the following scheme:

The present invention provides a prefabricated energy-dissipative anti-collision wall, comprising an anti-collision wall, a sliding component and an energy-dissipating component, wherein a number of the sliding components and The energy dissipation assembly, the sliding assembly and the energy dissipation assembly are factory prefabricated parts, the sliding assembly can make the crash wall and the bridge road surface move relatively, and the energy dissipation assembly can be offset by deformation impact energy.

Preferably, the sliding assembly includes a sliding groove and a sliding block, the sliding block is clamped in the sliding groove, the sliding block can slide in the sliding groove, and the sliding groove is connected with the anti-locking block through bolts. The collision wall or the bridge road is connected, and the slider is connected with the bridge road or the collision prevention wall through bolts.

Preferably, at least one end face of the chute is connected with a baffle plate through bolts.

Preferably, the slider is I-shaped, the upper plate of the slider is provided with at least two pairs of bolt holes symmetrically, the connection between the bottom plate and the middle plate is an inclined plane, and the cross-sectional shape of the sliding groove is the same as that of the sliding groove. The cross-sectional shapes of the blocks are matched, and the bolts are provided with washers.

Preferably, the length of the chute is at least 5 cm greater than the length of the slider.

Preferably, the energy dissipation assembly includes an S-shaped plate and a bolt, and two ends of the S-shaped plate are respectively connected to the bridge road surface or the crash wall through bolts.

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

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

Preferably, a plurality of the energy dissipating components are arranged at equal intervals, the plurality of the energy dissipating components form the energy dissipating component string, and the sliding components are located at both ends of the energy dissipating component string.

The present invention also relates to a method for assembling a prefabricated energy-dissipative anti-collision wall, based on the above-mentioned prefabricated energy-dissipative anti-collision wall, comprising the following steps:

Step 1, prefabricating the sliding component and the energy dissipation component according to the design size requirements, and installing bolts and washers in the bolt holes in the sliding component and the energy dissipation component respectively;

Step 2, according to the number and layout of the bolts in the sliding assembly and the energy dissipation assembly, determine the opening number and position of the bolt holes on the anti-collision wall and the bridge pavement;

Step 3, the anti-collision wall is hoisted above the sliding assembly and the energy dissipation assembly by a hoisting machine, and the bridge road surface and the bottom of the anti-collision wall are respectively bolted to the sliding assembly and the bottom of the anti-collision wall. Energy dissipating components are obtained to obtain a prefabricated energy dissipating anti-collision wall.

The present invention has achieved the following technical effects with respect to the prior art:

In the assembled energy-dissipative anti-collision wall of the present invention, when the anti-collision wall is hit, the anti-collision wall drives the sliding component to slide, and the energy dissipation effect is achieved through the deformation of the energy-dissipating component, thereby reducing the overall rigidity requirement of the anti-collision wall. To avoid excessive damage and damage caused by hard collision, the prefabricated installation is adopted, the cost is reduced, the construction is convenient for promotion, and it is also convenient for later maintenance and maintenance.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic diagram of the overall assembly structure of an assembled energy-dissipating anti-collision wall of the present invention;

Fig. 2 is the partial structure schematic diagram of the prefabricated energy-dissipative anti-collision wall of the present invention;

3 is a schematic structural diagram of a sliding assembly in the present invention;

4 is a schematic diagram of the internal structure of the sliding assembly in the present invention;

5 is a schematic structural diagram of an energy dissipation assembly in the present invention;

Among them: 1- anti-collision wall, 2- bridge pavement, 3- chute, 4- slider, 5- baffle, 6- S plate, 7- bolt, 8- washer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a prefabricated energy-dissipating anti-collision wall and an assembling method thereof, so as to solve the problems existing in the prior art, so that the pre-fabricated installation of the energy-dissipating anti-collision wall is realized, the cost is reduced, the construction is convenient, and the later stage is convenient. Maintenance and promotion.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 5: This embodiment provides a prefabricated energy-dissipative anti-collision wall, including an anti-collision wall 1, a sliding component and an energy-dissipating component, between the anti-collision wall 1 and the bridge road surface 2 A number of sliding components and energy dissipation components are detachably arranged. The sliding components and energy dissipation components are factory prefabricated parts. The sliding components can make the anti-collision wall 1 and the bridge pavement 2 move relatively, and the energy dissipation components can offset the impact energy through deformation.

The sliding assembly includes a chute 3 and a sliding block 4. A sliding block 4 is clamped in the sliding groove 3. The sliding block 4 can slide in the sliding groove 3. The sliding groove 3 is connected with the anti-collision wall 1 or the bridge road surface 2 through the bolt 7 In this embodiment, the chute 3 is connected with the anti-collision wall 1 to facilitate road positioning, and the slider 4 is connected with the bridge road 2 or the anti-collision wall 1 through bolts 7 . The chute 3 has a convex shape, and at least one end face of the chute 3 is connected to a baffle plate 5 through bolts 7 (the two ends of the chute 3 are connected to the baffle plate 5 through bolts 7), which is convenient for the assembly of the slider 4, and plays the role of blocking and anti-overturning. . The slider 4 is I-shaped, the upper plate of the slider 4 is provided with at least two pairs of bolt holes symmetrically, and the connection between the bottom plate and the middle plate is inclined, so as to ensure that the slider 4 is easy to assemble. When the collision occurs, the slider 4 only moves laterally in the chute 3, restricting the movement of the slider 4 in the vertical direction, and also reduces the sharp friction between the slider 4 and the chute 3 during the sliding process, and avoids the slider 4 Wear and tear in subsequent use. The cross-sectional shape of the chute 3 matches the cross-sectional shape of the slider 4 , and all bolts 7 are provided with washers 8 . The length of the chute 3 is at least 5cm longer than the length of the slider 4, and the anti-collision wall 1 is arranged in sections. 45cm; the overall height of the chute 3 is 8cm, the width of the bottom surface is 26cm, and the length is 31cm; the overall height of the slider 4 is 10cm, the maximum width is 18cm, and the maximum length is 20cm; among them, the length of the chute 3 is longer than that of the slider. 4 is 8cm longer in length.

The energy dissipation assembly includes an S-shaped plate 6 and bolts 7 , and both ends of the S-shaped plate 6 are respectively connected to the bridge road surface 2 or the anti-collision wall 1 through the bolts 7 . Wherein, the S-shaped plate 6 is a steel plate, the width of the plate of the S-shaped plate 6 is at least 10 cm, and the length of the projection surface is at least 15 cm. The thickness of the plate is 1 cm, 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, and the bolts 7 are provided with washers 8, and the washers 8 can play the role of decompression, increase friction and fixation. The S-shaped section of the S-shaped plate 6 is parallel to the cross-section of the bridge road surface 2 .

Several energy dissipating components are arranged at equal intervals, and several energy dissipating components form an energy dissipating component string. The positioning of the sliding components can determine the installation positions of the span anti-collision wall and the energy dissipation components, and it is also convenient to locate the installation positions of the subsequent anti-collision walls, making the assembly process faster and more accurate; when in use, the sliding components are located in the single-span anti-collision wall. The two ends of the collision wall body 1 can make the entire span of the collision prevention wall body 1 move more smoothly under the impact, and maximize the energy dissipation effect of the energy dissipation component string.

The present invention also relates to a method for assembling a prefabricated energy-dissipative anti-collision wall, based on the above-mentioned prefabricated energy-dissipative anti-collision wall, comprising the following steps:

Step 1, prefabricate the sliding components and energy dissipation components according to the design size requirements, install bolts 7 and washers 8 in the bolt holes in the sliding components and energy dissipation components respectively; S-type plate 6, slider 4, chute 3, block The plate 5, the bolt 7 and the washer 8 can be produced in the factory, and then transported and assembled, and the production conditions and production quality can be guaranteed.

Step 2, according to the number and layout of the bolts 7 in the sliding assembly and the energy dissipation assembly, determine the opening number and position of the bolt holes on the anti-collision wall 1 and the bridge pavement 2;

In step 3, the anti-collision wall 1 is hoisted above the sliding component and the energy dissipation component by the hoisting machine. Fire anti-collision wall.

The prefabricated energy-dissipating anti-collision wall of this embodiment adopts prefabricated installation, which reduces costs, facilitates construction, facilitates popularization, and facilitates later repair and maintenance; the sliding component can increase the slidability of the anti-collision wall 1 to a certain extent. Scope, the chute 3 also plays a positioning role during the assembly process with the bridge pavement 2, the baffle plate 5 on the end face of the chute 3 can facilitate the assembly of the slider 4, play the role of blocking and anti-overturning, and prevent the anti-collision wall 1 When the deformation is too large, the sliding block 4 slides out of the chute 3 and the anti-collision wall overturns when subjected to a strong impact. When the anti-collision wall 1 is hit by a car, the anti-collision wall 1 drives the slider 4 to slide in the chute 3, so that the S-shaped plate 6 connected to the anti-collision wall 1 is deformed to dissipate energy and reduce the The overall rigidity of the anti-collision wall 1 can avoid excessive damage and damage caused by hard collision.

In this specification, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

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:

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.

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