WO2022116666A1

WO2022116666A1 - Paving and mounting structure for ultra-low adhesion coefficient road glass bricks of vehicle proving field

Info

Publication number: WO2022116666A1
Application number: PCT/CN2021/121792
Authority: WO
Inventors: 黄武; 蒋仰杰; 张杰胜; 徐书国; 李敬义; 江灿; 何小东
Original assignee: 中铁四局集团第一工程有限公司; 中铁四局集团有限公司
Priority date: 2020-12-03
Filing date: 2021-09-29
Publication date: 2022-06-09
Also published as: CN112458824A; DE212021000258U1

Abstract

A paving and mounting structure for ultra-low adhesion coefficient road glass bricks of a vehicle proving field, comprising a grid-shaped mounting frame (1), and glass bricks (2) embedded and mounted into mesh holes of the mounting frame (1); the mounting frame (1) consists of a plurality of transvers beams (11), a plurality of longitudinal beams (12), and a plurality of cross-shaped fastening rubber pads (13), the transverse beams (11) and the longitudinal beams (12) being vertically arranged steel bar structures; upper insertion notches (14) on the transverse beams (11) and the corresponding lower insertion notches (14') on the longitudinal beams (12) are mutually engaged and fixed to form a grid-shaped structure; each cross-shaped fastening rubber pad (13) is snap-fitted on each cross-shaped intersection of the grid-shaped structure by means of a cross-shaped positioning and mounting notch (133) to form the stable mounting frame (1); and the glass bricks (2) have bottom surfaces supported in the mounting frame (1) and side surfaces snap-fitted with the cross-shaped fastening rubber pads (13) of the mounting frame (1), thereby forming an embedded fixing structure. The paving and mounting structure can form a stable integral road, and has low construction and maintenance costs.

Description

Laying and installation structure of ultra-low adhesion coefficient pavement glass bricks in test field

technical field

The invention relates to the technical field of pavement construction, in particular to a laying and installation structure for pavement glass bricks with an ultra-low adhesion coefficient in a test field.

Background technique

With the continuous development of the automobile industry, major automobile manufacturers have developed a number of active safety technologies on the basis of comprehensive mechanical technology and electronic technology, so that the control of the car is more comfortable, braking and acceleration when driving straight, and safety when turning. The left and right directions are more stable, so that the car will not deviate from the established travel route. These technologies mainly include: TCS (Traction Control System, also known as Traction Control System), ESP (Electronic Stablity Program, Electronic Stability Program) ), VSA (Vehicle Stability Assist, vehicle stability control system, in addition to the traditional brake anti-lock ABS function and traction control TCS function, the system also has a skid control function), ABS (Anti-lock Braking System, anti-lock braking system), EBD (Electronic Brake force Distribution, electronic brake force distribution), ASR (Acceleration Slip Regulation, driving anti-skid system).

To test and improve the above systems, it is necessary to build test roads with different adhesion coefficients in the test field to simulate various road conditions that may be encountered during actual driving, including normal roads, slippery roads, ice and snow roads, and some tires slipping, etc. Therefore, it is necessary to use different materials of pavement materials and their different combinations and to wet the pavement with water to meet the test requirements of various systems. At present, polished and wear-resistant concrete, epoxy resin, polished cast stone bricks, glazed ceramic tiles, etc. are mostly used to realize the construction of low adhesion coefficient pavement, and the construction methods are mostly cast-in-place and pasting; ultra-low adhesion coefficient pavement adopts new glass brick It is mostly used for architectural decoration, but it is still innovative for pavement construction, and there is no mature construction method. The surface of glass products is smooth, and it is difficult to form a solid connection with the concrete of the pavement base, especially in the outdoor environment with harsh environmental conditions, and it is also used for testing the road where the vehicle travels, and repeatedly bears large loads and impact loads. The temperature linear expansion coefficients of other road materials such as concrete are also quite different. If the glass bricks are fixed on the base concrete by the conventional sticking method, they are easy to fall off during use, and the maintenance and replacement costs are high.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a laying and installation structure of ultra-low adhesion coefficient pavement glass bricks in a test field, so that the glass bricks can form a pavement that can be tested by vehicles. After installation, the structure is overall stable and easy to maintain and replace.

The technical scheme of the present invention is:

A laying and installation structure for pavement glass bricks with an ultra-low adhesion coefficient in a test field, comprising a grid-shaped installation frame and glass bricks embedded in each mesh hole of the installation frame;

The installation frame is composed of a plurality of beams, a plurality of longitudinal beams and a plurality of cross-shaped rubber pads. The beams and the longitudinal beams are both vertically arranged steel bar structures, and there is a row at the top of each beam. The upper plug-in ports are evenly distributed along the axial direction. The bottom end of each longitudinal beam is provided with a row of lower plug-in ports evenly distributed along the axial direction. Half of the height of the beam, the plurality of beams and the plurality of longitudinal beams are connected to each other to form a grid-like structure, that is, the upper plug-in interface on the beam and the corresponding lower plug-in interface on the longitudinal beam are mutually plugged and fixed;

The four sides of the cross-shaped rubber pad are composed of a pair of L-shaped rubber pads, and the vertical parts of the pair of L-shaped rubber pads are arc-shaped bending plate structures that protrude toward the inner sidewall of the pair of L-shaped rubber pads. As rubber pads, the horizontal parts of a pair of L-shaped rubber pads face opposite directions and both serve as support pads, and the top ends of the vertical parts of a pair of L-shaped rubber pads are fixedly connected so that an opening is formed between the vertical parts of a pair of L-shaped rubber pads For the downward positioning and installation notch, the inner ends of the four sides of the cross-shaped rubber pad are connected to each other to form a cross-shaped structure, and the positioning and installation notches of each side are connected to each other to form a downward-opening cross-shaped positioning and installation notch. A cross-shaped rubber pad is inserted downward at each cross-shaped intersection of the grid-like structure through the cross-shaped positioning installation notch to form a stable installation frame structure;

The four sides of the glass brick are provided with a concave arc groove structure, the glass brick is embedded in the mesh of the installation frame, the four sides of the glass brick and the rubber pads are mutually engaged, and the bottom surface of the glass brick is supported on the cross-shaped rubber. on the support pad of the card pad, thereby forming an inlaid fixing structure.

The mesh of the installation frame is a rectangular mesh, the length of the two lateral sides of each cross-shaped rubber pad is half the length of the lateral side of the rectangular mesh, and the length of the longitudinal two sides of each cross-shaped rubber pad is Both are half the length of the longitudinal side of the rectangular mesh, so that the four vertical sides of each rectangular mesh are fully covered with rubber pads, and the edge of the bottom surface of the glass brick is completely supported on the support pad of the cross-shaped rubber pad.

The width of the positioning and installation notch of each side of the cross-shaped rubber clip is equal to the thickness of the steel bar of the installation frame, and the groove depth of the positioning and installation slot of each side of the cross-shaped rubber clip is equal to the height of the installation frame.

The middle of the bottom surface of the glass brick is provided with a rectangular groove, so that the bottom surface of the glass brick forms a rectangular ring supporting surface structure, and the rectangular ring supporting surface is completely supported on the supporting pad of the cross-shaped rubber pad.

Advantages of the present invention:

(1) The steel bars used in the installation frame of the present invention are made of stainless steel, which prevents corrosion and has high strength and rigidity;

(2) On the one hand, the cross-shaped rubber pad of the present invention is used to support the glass brick, and on the other hand, the rubber pad of the vertical part is convenient for the inlay and fixation of the glass brick, and the glass brick is supported on the base concrete through the support pad of the cross-shaped rubber pad. , play the role of uniform force and buffer, so as to ensure the stability of the structure after installation, and easy to replace and maintain;

(3) The middle part of the bottom surface of the glass brick of the present invention is provided with a square groove, which is out of contact with the base concrete and ensures sufficient clearance, which is conducive to drainage under the brick, and prevents the base layer from being uneven or hard debris between them, causing stress concentration when the brick body is loaded. and rupture.

The invention enables the glass bricks with only architectural decoration function to achieve road performance. After installation, the glass bricks are combined to form a stable overall road surface, which meets the requirements of driving tests, bypasses the problem that the glass material cannot be effectively bonded with other road materials, and is inlaid and installed. Bricks are easy to maintain and replace, effectively reducing construction and maintenance costs.

Description of drawings

Fig. 1 is the structural representation of the present invention,

Figure 2 is a longitudinal sectional view of the present invention,

Fig. 3 is the structural representation of the connection between the cross beam and the longitudinal beam of the present invention,

Fig. 4 is the partial structure schematic diagram of the beam of the present invention,

FIG. 5 is a schematic view of the structure of the cross-shaped rubber pad of the present invention.

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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to Figures 1 and 2, a laying and installation structure of ultra-low adhesion coefficient pavement glass bricks in a test field includes a grid-shaped installation frame 1 and a glass brick 2 embedded in each square mesh hole 15 of the installation frame 1;

3 and 4, the installation frame 1 is composed of a plurality of beams 11, a plurality of longitudinal beams 12 and a plurality of cross-shaped rubber pads 13. The beams 11 and the longitudinal beams 12 are both vertically arranged steel bar structures. The top end of each beam 11 is provided with a row of upper insertion ports 14 evenly distributed in the axial direction, and the bottom end of each longitudinal beam 12 is provided with a row of lower insertion ports 14' evenly distributed in the axial direction. The height of the transverse beam 11 and the longitudinal beam 12 Consistent, and the depth of the upper plug-in port 14 and the lower plug-in port 14' is half of the height of the corresponding beam 11 or the longitudinal beam 12, the plurality of beams 11 and the plurality of longitudinal beams 12 are connected to each other to form a grid-like structure, that is, on the beam 11 The upper plug-in port 14 and the corresponding lower plug-in port 14' on the longitudinal beam 12 are mutually plugged and fixed;

As shown in Figures 2 and 5, the four sides of the cross-shaped rubber pads are composed of a pair of L-shaped rubber pads, and the vertical parts of the pair of L-shaped rubber pads are curved curved protruding toward the inner side wall. The plate structure is used as the rubber clip pad 132, the horizontal parts of a pair of L-shaped rubber pads are oriented in opposite directions and both are used as support pads 131, and the top ends of the vertical parts of the pair of L-shaped rubber pads are fixedly connected so that the vertical parts of the pair of L-shaped rubber pads are vertically connected. A positioning installation notch 133 with an opening downward is formed between the straight parts. The groove width of the positioning installation notch 133 is equal to the thickness of the steel bar of the installation frame 1, and the groove depth of the positioning installation notch 133 is equal to the height of the installation frame 1. The cross-shaped rubber The inner ends of the four sides of the card pad are connected to each other to form a cross-shaped structure, and the positioning and installation slots 133 of each side are connected to each other to form a cross-shaped positioning and installation slot with an opening downward. The installation notch is inserted into each cross-shaped intersection of the grid-shaped structure downward to form a stable installation frame structure; the length of the four sides of each cross-shaped rubber pad is half of the side length of the square mesh , so that the four vertical sides of each square mesh are fully covered with rubber pads 132;

2, a square groove 21 is provided in the middle of the bottom surface of the glass block 2, so that the bottom surface of the glass block 2 forms a square ring support surface structure, and the four sides of the glass block 2 are provided with a concave arc groove structure, and the glass block 2 is embedded in the installation frame In the square mesh of 1 and the four sides of the glass brick 2 and the corresponding rubber pads 132 are mutually engaged, the square ring support surface of the bottom surface of the glass brick 2 is completely supported on the support pad 131 of the cross-shaped rubber pad 13, thereby forming a mosaic fixed structure.

As shown in Figure 2, when laying and installing, the bottom end of the cross-shaped rubber pad 13 of the installation frame 1 is supported on the surface of the base concrete 3, and the glass brick 2 and the installation frame 1 are embedded and squeezed with each other, and are jointly stressed to form an overall stable ultra-low Adhesion Coefficient Pavement.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

A laying and installation structure for pavement glass bricks with an ultra-low adhesion coefficient in a test field is characterized in that: it comprises a grid-shaped installation frame, and glass bricks embedded in each mesh hole of the installation frame;

The installation frame is composed of a plurality of beams, a plurality of longitudinal beams and a plurality of cross-shaped rubber pads. The beams and the longitudinal beams are both vertically arranged steel bar structures, and there is a row at the top of each beam. The upper sockets are evenly distributed along the axial direction, and the bottom end of each longitudinal beam is provided with a row of lower sockets evenly distributed along the axial direction. Half of the height of the longitudinal beam, the plurality of beams and the plurality of longitudinal beams are connected to each other to form a grid-like structure, that is, the upper plug-in interface on the beam and the corresponding lower plug-in interface on the longitudinal beam are mutually plugged and fixed;

The four sides of the cross-shaped rubber pad are composed of a pair of L-shaped rubber pads, and the vertical parts of the pair of L-shaped rubber pads are arc-shaped bending plate structures that protrude toward the inner sidewall of the pair of L-shaped rubber pads. As rubber pads, the horizontal parts of a pair of L-shaped rubber pads face opposite directions and both serve as support pads, and the top ends of the vertical parts of a pair of L-shaped rubber pads are fixedly connected so that an opening is formed between the vertical parts of a pair of L-shaped rubber pads downward positioning and installation notches; the inner ends of the four sides of the cross-shaped rubber pad are connected to each other to form a cross-shaped structure, and the positioning and installation notches of each side are connected to each other to form a cross-shaped positioning and installation notches with downward openings. A cross-shaped rubber pad is inserted downward at each cross-shaped intersection of the grid-like structure through the cross-shaped positioning installation notch to form a stable installation frame structure;

The four sides of the glass brick are provided with a concave arc groove structure, the glass brick is embedded in the mesh of the installation frame, the four sides of the glass brick and the rubber pads are mutually engaged, and the bottom surface of the glass brick is supported on the cross-shaped rubber. on the support pad of the card pad, thereby forming an inlaid fixing structure.
A laying and installation structure for pavement glass bricks with ultra-low adhesion coefficient in a test field according to claim 1, characterized in that: the mesh holes of the installation frame are rectangular mesh holes, and each cross-shaped rubber pad has two lateral sides. The length of each cross-shaped rubber pad is half the length of the horizontal side of the rectangular mesh, and the length of the two longitudinal sides of each cross-shaped rubber pad is half the length of the longitudinal side of the rectangular mesh, so that the four vertical sides of each rectangular mesh are It is fully covered with rubber pads, and the edge of the bottom surface of the glass brick is completely supported on the support pad of the cross-shaped rubber pad.
A laying and installation structure for pavement glass bricks with ultra-low adhesion coefficient in a test field according to claim 1, characterized in that: the width of the positioning and installation notch of each side of the cross-shaped rubber pad is equal to the installation frame steel The thickness of the strip, and the groove depth of the positioning and mounting notches on each side of the cross-shaped rubber clip is equal to the height of the mounting frame.
A laying and installation structure for pavement glass bricks with an ultra-low adhesion coefficient in a test field according to claim 2, wherein a rectangular groove is arranged in the middle of the bottom surface of the glass brick, so that the bottom surface of the glass brick forms a rectangular ring supporting surface structure, so The rectangular ring support surface is completely supported on the support pad of the cross-shaped rubber pad.