阅读说明：本技术 市政道路防撞墙 (Municipal administration road anticollision wall ) 是由 金晓勇 陈小丽 贾拥军 李英红 于 2021-08-26 设计创作，主要内容包括：本发明公开了市政道路防撞墙,包括安装墙体,所述安装墙体内设置有安装腔,所述安装腔的至少竖直一侧为开口,所述安装腔的开口侧安装有至少一个竖直设置的卸载柱,所述安装腔中设置有一直出于压缩状态的弹性件,所述弹性件与所述卸载柱连接以在受到荷载时卸除部分荷载作用。设置弹性件帮助卸载柱在受到外部汽车的冲击荷载时得到部分缓冲效果,吸收部分荷载,降低卸载柱的损伤,同时当荷载大到一定程度时会将弹性件的弹性作用完全克服,此时卸载柱在安装墙体中还可以进行转动,从而进一步卸载并引导汽车进行减速,进一步降低汽车撞击带来的不良损伤,减少市政道路防撞墙的维修更换成本,而且该市政道路防撞墙可以预制后再装配,也可以一体浇筑后再施工,安装方式灵活。(The invention discloses a municipal road anti-collision wall which comprises a mounting wall body, wherein a mounting cavity is arranged in the mounting wall body, at least one vertical side of the mounting cavity is provided with an opening, at least one vertically-arranged unloading column is arranged at the opening side of the mounting cavity, an elastic piece which is always in a compression state is arranged in the mounting cavity, and the elastic piece is connected with the unloading column to unload part of load when the elastic piece is loaded. Set up the elastic component help uninstallation post and obtain partial buffering effect when receiving the impact load of outside car, absorb partial load, reduce the damage of uninstallation post, simultaneously can overcome the elastic action of elastic component completely when the load is big to the certain degree, the uninstallation post can also rotate in the installation wall body this moment, thereby further uninstallation and guide car slow down, further reduce the harmful effects that the car striking brought, reduce the maintenance replacement cost of town road anticollision wall, and this town road anticollision wall can be prefabricated after the reassembling, also can be the construction after pouring integratively, the mounting means is nimble.)

1. Municipal administration road anticollision wall, including the installation wall body, its characterized in that, be provided with the installation cavity in the installation wall body, at least vertical one side of installation cavity is the opening, the opening side-mounting of installation cavity has the uninstallation post of at least one vertical setting, be provided with the elastic component that always is in compression state in the installation cavity, the elastic component with the uninstallation post is connected in order to unload partial load effect when receiving the load.

2. The municipal road anti-collision wall according to claim 1, wherein sliding grooves are formed in the upper side wall and the lower side wall of the mounting cavity, and insertion parts are arranged at the upper end and the lower end of the unloading column and are respectively connected in the corresponding sliding grooves in a sliding manner.

3. The municipal road anti-collision wall according to claim 2, wherein one end of the elastic member is fixed on the side wall of the installation cavity, the other end of the elastic member is fixedly connected with a resisting member, and the lower fastening member is used for fastening the unloading column to the end part of the sliding section of the sliding chute under the action of the elastic member.

4. The municipal road anti-collision wall according to claim 3, wherein each chute comprises a sliding section and a rotating section which are communicated with each other, the cross-sectional dimension of the rotating section is larger than that of the sliding section, and the inserting part is prismatic and can only slide in the sliding section and can rotate in the rotating section.

5. The municipal road anti-collision wall according to claim 4, wherein the corresponding upper and lower chutes arranged in the installation cavity are in one group, the sliding section of the lower chute in each group of chutes is longer than that of the upper chute, and the ends of the upper and lower sliding sections, which are far away from the rotating section, are flush.

6. The municipal road anti-collision wall according to claim 4, wherein each unloading post corresponds to a group of elastic members, each group of elastic members is composed of a plurality of elastic members arranged in a row up and down, and the elastic force of the elastic members positioned more downward is weaker.

7. The municipal road anti-collision wall according to claim 5 or 6, wherein the unloading post is provided with a plurality of guide ribs on the circumferential side wall, and the guide ribs are arranged in a manner that the rotation direction of the unloading post is inclined downwards.

8. The municipal road anti-collision wall according to claim 7, wherein the guide ribs are continuous spiral ribs or discontinuous convex points arranged obliquely.

9. The municipal road impact wall according to claim 7, wherein the guide ribs are made of rubber.

10. The municipal road anti-collision wall according to claim 1, wherein the installation wall body of the municipal road anti-collision wall is integrally cast or assembled with the road/bridge.

Technical Field

The invention relates to the technical field of road and bridge construction, in particular to a municipal road anti-collision wall.

Background

The municipal administration road anticollision wall arranges in the edge in the girder pterygoid lamina outside as the additional structure of bridge, is important safety protection thing, has the effect that prevents the vehicle of traveling for the reason and roll out of the bridge.

However, most of the existing municipal administration road anti-collision walls are formed by being poured synchronously with a bridge, so that the municipal administration road anti-collision walls are protected from vehicle accidents, are easy to be damaged due to the huge impact of high-speed vehicles, and are required to be replaced or repaired based on safety consideration once cracks and damages occur. Because town road anticollision wall is connected as an organic whole through reinforcing bar, concrete with the bridge body, consequently the process of excision, chisel out also can produce great influence to the bridge body.

In view of the above, chinese patent application publication No. CN110344317B discloses an assembled municipal administration road anti-collision wall and a method for installing the same, wherein the municipal administration road anti-collision wall can be directly assembled during construction by prefabricating the single municipal administration road anti-collision wall in a factory, and the assembled municipal administration road anti-collision wall can be replaced after being damaged by impact.

However, even though the replacement is facilitated by the form of assembly, the damage degree of the municipal road impact wall when being impacted cannot be reduced, i.e., the cost per replacement is still high.

Disclosure of Invention

In order to overcome the defect that in the prior art, a municipal road anti-collision wall is easy to damage due to impact and high in maintenance and replacement cost, the invention provides the municipal road anti-collision wall.

The technical scheme includes that the municipal road anti-collision wall comprises a mounting wall body and is characterized in that a mounting cavity is arranged in the mounting wall body, at least one vertical side of the mounting cavity is provided with an opening, at least one vertically arranged unloading column is mounted at the opening side of the mounting cavity, an elastic piece which is always in a compression state is arranged in the mounting cavity, and the elastic piece is connected with the unloading column to unload part of load when the elastic piece is loaded.

Preferably, the upper side wall and the lower side wall of the mounting cavity are both provided with sliding grooves, and the upper end and the lower end of the unloading column are provided with inserting parts which are respectively connected in the corresponding sliding grooves in a sliding manner.

Preferably, one end of the elastic member is fixed on the side wall of the mounting cavity, the other end of the elastic member is fixedly connected with the abutting member, and the unloading column is lower tightly than the end part of the sliding section of the sliding chute by the lower member under the action of the elastic member.

Preferably, each sliding groove comprises a sliding section and a rotating section which are communicated with each other, the sectional dimension of the rotating section is larger than that of the sliding section, the inserting part is prismatic and can only slide in the sliding section and rotate in the rotating section.

Preferably, the spout that corresponds about setting up in the installation cavity is a set of, and the sliding section of the spout of below all is longer than the sliding section of the spout of top in each group's spout, and two sliding sections of upper and lower side keep away from the one end parallel and level of rotation section.

Preferably, each unloading column corresponds to a group of elastic parts, each group of elastic parts consists of a plurality of elastic parts arranged in a row from top to bottom, and the elastic action of the elastic parts at the positions which are lower is weaker.

Preferably, a plurality of guide ribs are arranged on the circumferential side wall of the unloading column, and the rotation direction of the guide ribs grinding the unloading column is inclined downwards.

Preferably, the guide ribs are continuous spiral ribs or discontinuous convex points which are obliquely arranged.

Preferably, the guide ribs are made of rubber.

Preferably, the mounting wall body of the municipal road anti-collision wall is integrally cast or assembled and connected with the road surface/bridge.

Compared with the prior art, the invention has the beneficial effects that: set up the elastic component help uninstallation post and obtain partial buffering effect when receiving the impact load of outside car, absorb partial load, reduce the damage of uninstallation post, simultaneously can overcome the elastic action of elastic component completely when the load is big to the certain degree, the uninstallation post can also rotate in the installation wall body this moment, thereby further uninstallation and guide car slow down, further reduce the harmful effects that the car striking brought, reduce the maintenance replacement cost of town road anticollision wall, and this town road anticollision wall can be prefabricated after the reassembling, also can be the construction after pouring integratively, the mounting means is nimble.

Drawings

The invention is described in detail below with reference to examples and figures, in which:

fig. 1 is a schematic structural diagram of the present embodiment.

1. Installing a wall body; 2. a mounting cavity; 3. unloading the column; 4. an elastic member; 5. a sliding section; 6. a rotating section; 7. and (4) guiding ribs.

Detailed Description

Municipal administration road anticollision wall, as shown in figure 1, including installation wall body 1, be provided with installation cavity 2 in the installation wall body, at least vertical one side of installation cavity is the opening, the opening side of installation cavity installs at least one vertical uninstallation post 3 that sets up, be provided with in the installation cavity always in the elastic component 4 of compression state, elastic component 4 with uninstallation post 3 is connected in order to unload partial load effect when receiving the load.

The upper side wall and the lower side wall of the mounting cavity are both provided with sliding grooves, and the upper end and the lower end of the unloading column are provided with inserting parts which are respectively connected in the corresponding sliding grooves in a sliding manner; one end of the elastic piece is fixed on the side wall of the installation cavity, the other end of the elastic piece is fixedly connected with a supporting piece, and the lower supporting piece is used for supporting the unloading column to be tightly close to the end part of the sliding section of the sliding groove under the action of the elastic piece.

Every the spout all includes the sliding section 5 and the rotation section 6 of UNICOM, the cross sectional dimension of rotation section is greater than the cross sectional dimension of sliding section, grafting portion is prismatic and can only slide in the sliding section, can take place to rotate in the rotation section, the spout that corresponds about setting up in the installation cavity is a set of, and the sliding section of the spout of below all is longer than the sliding section of the spout of top in each group's spout, and two sliding sections of upper and lower keep away from the one end parallel and level of rotation section.

Each uninstallation post all corresponds a set of elastic component, and each elastic component of group comprises a plurality of elastic components that become the setting from top to bottom in rows, and the elastic action of the elastic component that the position is more down is weaker.

A plurality of guide convex patterns 7 are arranged on the circumferential side wall of the unloading column, and the rotation direction of the guide convex patterns grinding and unloading column is inclined downwards; the guide convex patterns 7 are continuous spiral convex strips or discontinuous convex points which are obliquely arranged, and the guide convex patterns are made of rubber.

The mounting wall body of the municipal road anti-collision wall is integrally cast or assembled with the road surface/bridge.

The embodiment of the utility model provides a town road anticollision wall, including the installation wall body that is formed by concrete placement, the vertical cross-section of installation wall body is the great right trapezoid of bottom size, and one side of installing the wall body is vertical plane promptly, is the installation cavity of cavity setting in the installation wall body, and the installation cavity is the opening on one side of the vertical plane of installation wall body, and the opening side of installation cavity installs at least one vertical setting's uninstallation post, and the uninstallation post is a plurality of in rows setting in this embodiment, and the clearance between the adjacent uninstallation post can be 3-5 cm.

The upper side wall and the lower side wall of the installation cavity are both provided with sliding grooves, the upper end and the lower end of the unloading column are provided with inserting parts which are respectively connected in the corresponding sliding grooves in a sliding manner, meanwhile, an elastic part which is always in a compression state is arranged in the installation cavity, and the elastic part is connected with the unloading column to unload part of load when the unloading column is loaded.

Specifically, still be fixed with an mounting panel on the back lateral wall of installation cavity, the welding has a plurality of springs on the mounting panel, and the other end of spring then is fixed with low tie-down piece, and low tie-down piece will under the effect of elastic component the uninstallation post is low tightly in the slip section tip of spout. In this embodiment, the lower fastening member may be a plate-like member, or may be a plurality of half-arc hoops spaced apart from each other.

Because the spring is arranged as the elastic piece, when the unloading column of the protective wall is impacted by an automobile, part of load can be transferred to the spring and absorbed by the spring, so that the effect of weakening the impact strength is achieved, the damage of the unloading column is reduced to a certain extent, and the service life is prolonged.

However, the acting force of the impact of the automobile is usually larger under the condition of high-speed running, so each sliding groove comprises a sliding section and a rotating section which are communicated, the sectional dimension of the rotating section is larger than that of the sliding section, the inserting part is a prism, the sliding section can only slide in the sliding section, and the rotating section can rotate, and the sliding section is closer to the opening side of the installation cavity than the rotating section, namely, only when the unloading column is subjected to larger impact force and completely compresses the spring, the unloading column can slide to the rotating section along the sliding section.

At this time, the unloading column can rotate in the rotating section, and the external acting force is larger, so that the unloading column can rotate to further unload the impact acting force borne by the unloading column, and the effect of protecting the unloading column is achieved.

In one embodiment, in order to guide the driving direction of the automobile impacting on the unloading column and achieve the effect that the automobile can be timely decelerated when the unloading column rotates, the upper sliding groove and the lower sliding groove which correspond to each other are arranged in the installation cavity in a group, the sliding section of the lower sliding groove in each group of sliding grooves is longer than the sliding section of the upper sliding groove, and one ends of the upper sliding section and the lower sliding section, which are far away from the rotating section, are flush. Through the setting of two sections different length of slip sections in a set of spout, let the uninstallation post when receiving great load, its bottom can a little of multiple displacement to make the uninstallation post at last be the inside slope form in bottom after compressing the spring completely, the car is supported and is leaned on the uninstallation post of slope to continue to travel and can receive great frictional force, is favorable to the timely speed reduction of car and stops, also prevents that the car from rushing out town road anticollision wall.

Furthermore, each uninstallation post all corresponds a set of elastic component, and each elastic component of group comprises a plurality of elastic components that become the setting of being listed as from top to bottom, and the elastic action of the elastic component that the position is more down is weaker. Due to the arrangement, when the unloading column is subjected to external impact, the compression amount corresponding to the upper spring and the lower spring has a difference value, so that the bottom displacement of the unloading column is larger, the integral unloading column is in an inclined state, the effect of restraining the movement of an automobile is achieved, and the automobile deceleration is facilitated.

To uninstallation post itself, can adopt the concrete prefabrication or pour and obtain, also can adopt the great wood material of diameter, the appearance adopts the friction that the shape of polygon prism can increase when contacting with the car, is equipped with multichannel direction burr on the uninstallation post circumference lateral wall simultaneously, the direction burr grinds the rotation direction downward sloping setting of uninstallation post, and the direction burr is continuous spiral sand grip, or discontinuous and is the bump of slope arrangement.

Because the structure of the direction burr that sets up on the uninstallation post surface, and set up downwards along uninstallation post direction of rotation, consequently when the car strikes and drives the uninstallation post and rotate on the uninstallation post, the rotation of direction burr also can form stronger effort to the car, and the guide car slows down and parks, and the direction burr can adopt rubber to make moreover, increases the friction, improves the durability.

The mounting wall body of the municipal road anti-collision wall can be integrally cast or assembled with a road surface/bridge, and the specific connection form is not described. However, for the municipal administration road anti-collision wall with the concrete structure, as the road is sprayed with the snow melting agent even salt and the like for removing snow in winter, the local air humidity of the municipal administration road anti-collision wall is high, the part is alternate dry and wet, the oxygen supply is sufficient, the invasion of water and oxygen, especially chloride ions, can easily cause the corrosion of reinforcing steel bars, the volume expansion after the corrosion of the reinforcing steel bars is 2.5 times of the original volume expansion, so that the concrete municipal administration road anti-collision wall is cracked and accelerated to corrode, and as a result, the strength of the concrete municipal administration road anti-collision wall is reduced, and the bearing capacity of the bridge is influenced, so that the service life of the bridge is greatly shortened.

Therefore, all be provided with protective structure on the surface of the installation wall body of town road anticollision wall of this embodiment and uninstallation post, protective structure includes infiltration closed coat, isolation layer and surface coating, and the infiltration closed coat selects silane solution to be surface impregnation, silane solution's component and its mass percent:

70 to 75 percent of silane,

5 to 10 percent of alcohol,

1 to 5 percent of siloxane,

0.1 to 1 percent of nonyl phenol,

0.01 to 0.1 percent of benzotriazole,

5 to 25 percent of water.

The isolation layer is made of organic epoxy resin or modified epoxy resin, and the surface coating is polyurethane finish, fluorocarbon resin finish or siloxane finish.

In the embodiment, 75 parts of silane, 10 parts of alcohol, 1 part of siloxane, 0.5 part of nonylphenol, 0.2 part of benzotriazole and 13.3 parts of water are taken, and the preparation method of the protective structure comprises the following steps:

firstly, cleaning, dedusting and deoiling the surface of a finished product installation wall body and an unloading column, and washing with high-pressure water;

after the wall body and the unloading column are dried, performing silane dipping construction, wherein the preparation method of the silane solution comprises the following steps: adding siloxane, nonyl phenol and benzotriazole into alcohol in sequence, and stirring; adding alcohol into the above materials into water, and stirring; adding silane before use, stirring for 3-8 min, and standing for 15-25 min.

And after the silane solution is prepared, carrying out permeable sealing layer treatment, and uniformly spraying the silane solution on the installation wall and the unloading column in a high-pressure spraying manner. After the permeable sealing layer is dried, spraying the isolation layer in a high-pressure spraying mode, and finally spraying the protection surface layer in a high-pressure spraying mode after the isolation layer is dried.

The organic functional group contained in the molecular structure of the silane can react with other organic polar groups to form chemical bonds, and the alkoxy can form chemical bonds with inorganic metal hydroxyl, so that the inorganic and organic materials are integrated.

In this embodiment, the protection of concrete town road anticollision wall selects silane as surface impregnation as the infiltration confining layer, is equipped with isolation layer, surface coating again, just enables the protection of concrete town road anticollision wall structure furthest, prevents the protection of concrete town road anticollision wall effectively. The silane permeation sealing layer mainly has the functions of high permeability and organic-inorganic coupling, can permeate the concrete structure surface layer with the depth of 5 mm, obviously reduces the water absorption and chloride permeability of the concrete structure, keeps the original air permeability of the concrete structure, enables water vapor in the concrete structure to be freely evaporated, and improves the protection effect on the concrete structure.

Because the permeation sealing layer adopts the silane solution which can permeate 5 mm of the surface layer of the concrete structure, the water absorption of the concrete structure and the permeability of chloride are obviously reduced, the original air permeability of the concrete structure is kept, and the isolating layer and the surface coating can prevent corrosive media from corroding and permeating the surface of the concrete structure. Through the effect of silane, inorganic materials and organic materials are organically combined through chemical bonds and matched with an isolation layer and a surface layer, so that an effective protective structure is formed, the durability of concrete is improved, and the service life is prolonged. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.