CN114411486A - Post-tensioning prestress assembly type intelligent traffic sign pavement structure and installation method thereof - Google Patents

Abstract

The invention relates to the technical field of traffic infrastructure, in particular to a post-tensioning prestress assembly type intelligent traffic sign pavement structure and an installation method thereof, wherein the installation method comprises the following steps: firstly, manufacturing a single precast concrete block member; secondly, excavating and cutting a road surface strip-shaped foundation trench; step three, tensioning the prestressed reinforcement; step four, placing the prefabricated component of the luminous floor tile into the strip-shaped base groove; step five, installing a luminous brick component; step six, gap filling; step seven: and a 220v power supply and a signal lamp control box are connected and used for debugging light. According to the invention, the prefabricated intelligent traffic sign pavement structure adopts the construction process of factory prefabrication and field assembly, so that the workload of field pouring can be obviously reduced, and the structure has reliable quality, high mechanization degree and high construction efficiency. The prestressed reinforcement is used for connecting the prefabricated parts and is transited by using the rubber joint filling material, so that the capacity of transferring load by joints can be improved, and the durability and the driving comfort of a pavement structure are improved.

Description

A post-tensioning prestressed prefabricated smart traffic sign pavement structure and its installation method

technical field

The invention relates to the technical field of traffic infrastructure, in particular to a post-tensioning method prestressed assembled smart traffic sign pavement structure and an installation method thereof.

Background technique

With the continuous development of social economy and science and technology, there are more and more motor vehicles and non-motor vehicles driving on urban roads, which puts forward higher requirements for the construction of transportation infrastructure. In all parts of the country, some zebra crossings are in a worn condition, and it is difficult for drivers to obtain information on the road conditions ahead in time, which leads to tragedies caused by too late to brake. At the same time, due to the imperfect lighting facilities in some areas, the driving environment at night is not good, and it is difficult to guarantee the driving safety at the intersection of people and vehicles near the zebra crossing. According to statistics, the accident rate of driving at night is three times that of daytime.

In response to the above traffic safety problems, the existing method is to add auxiliary facilities at the crosswalk to improve the identification of traffic markings, such as setting up longitudinal raised road signs or smart traffic signs - road luminous floor tiles (patent numbers: 201910053729.8, 201910355181.2) and so on. The luminous floor tile is composed of a brick body and a base, the main material of the brick body is a polymer composite material, and the base is a ductile iron box, taking into account the hardness and toughness. It can form a visual impact on drivers and pedestrians through color prompts, allowing drivers and pedestrians to determine traffic lights and traffic conditions in advance, and avoid risks in time, thereby reducing the occurrence of traffic accidents.

However, judging from the current installation and use of light-emitting structures on pavements, there are also a series of problems with this type of light-emitting floor tiles. First of all, the luminous floor tiles are mainly installed by in-situ pouring. During the construction and installation process, a large amount of cement pouring makes the traffic closed for a long time and aggravates the traffic congestion in the city. There are also problems such as difficulty in controlling the construction quality in the process of on-site pouring and paving, which is not conducive to the standardized construction and refined management of the pavement structure. Secondly, a part of the light-emitting pavement adopts the prefabricated structure. However, due to the insufficient connection between the prefabricated structures and the poor drainage of the pavement, problems such as water seepage between the joints of the light-emitting pavement structure are easy to occur, which will soak the roadbed and affect the The overall service life of the road, so it is necessary to take corresponding measures to improve these problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the shortcomings in the prior art, and propose a post-tensioning method prestressed assembled smart traffic sign pavement structure and its installation method, which can solve the problem of the traditional pavement light-emitting structure in the process of installation, construction and use. The existing cast-in-situ construction traffic closure time is long, the connection between prefabricated structures is not tight enough, and the joints are easy to seep water.

In order to achieve the above purpose, the present invention adopts the following technical solutions:.

An installation method of a post-tensioned prestressed assembled smart traffic sign pavement structure, the installation method comprising the following steps:

Step 1. Make a single precast concrete block member: precast concrete block in a precast member processing plant, length L=1～1.2m, width D=400～450mm, height H=250～350mm; the size of the known luminous brick is L _Luminescence ×D _Luminescence ×h _Luminescence =450mm×250mm×55mm; on the prefabricated concrete block reserved luminous brick groove length L ₁ =L _Luminescence +(15～20)mm, width d ₁ =d _Luminescence +(15～20)mm 20) mm, height h ₂ = h _light = 55 mm; reserved circular drainage grooves are located at 1/3 to 1/2 of the height above the bottom of the concrete block, drainage groove diameter d _drainage = 1/3H; reserved circular drainage grooves The upper part of the water tank is provided with a trough-shaped steel member, which is used to install and fix the PVC wiring pipe and is tangent to the PVC wiring pipe. Ensure that the water can be discharged in time in rainy weather or in the presence of accumulated water; the opening size of the reserved prestressed rib channel is d _channel = d _{steel bar} + (1 ~ 2) mm; the cutting strip grooves are located in the precast concrete. The middle position of the top and bottom of the block, length L ₂ =1/10L, width d ₂ =d _channel + (15～20)mm, depth h ₂ =(1/5～1/6)H; single precast concrete block member After the production is completed, transport to the designated location for installation and construction;

Step 2. Excavate and cut the pavement strip foundation groove: arrange professional surveyors to measure, locate and lay out the line at the milling pavement, and determine the width and depth of the excavated pavement strip foundation groove; excavate the pavement strip foundation groove The width should be 10-20mm wider than the precast concrete members, and the depth should be 10-20mm deeper than the thickness of the precast concrete members. The thickness is 10～20mm;

Step 3. Tension of prestressed steel bars: First, place rubber waterstops between adjacent precast concrete blocks, and the thickness of the rubber waterstops is 8 to 12 mm; Corrugated pipe, implant prestressed steel bars, and use anchor bolts to anchor both ends of the prestressed steel bars on the precast concrete blocks, then use jacks to tension the prestressed steel bars, and rely on the end anchors to transmit the prestressed tension to the precast concrete blocks. , so as to generate pre-compression stress; finally remove the jack, pour cement slurry into the tunnel for tunnel grouting, cut off the exposed steel bars, clean the cement slurry at the end of the prefabricated member, and use concrete for anchoring protection, so that the prestressed steel bars and the Precast concrete elements form a whole;

Step 4. Put the prefabricated components of the luminous floor tiles into the strip foundation groove: use a crane to vertically place the prefabricated components that have been stretched by the post-tensioning method into the excavated pavement strip foundation groove according to the positioning line;

Step 5. Install the light-emitting brick components: First, put the Ф40 PVC wiring pipe into the channel-shaped steel member, pass the cables, put the light-emitting bricks into the reserved grooves of the light-emitting bricks, and place the light-emitting bricks and precast concrete blocks. They are connected by road rubber caulking strips to ensure good impermeability and structural integrity;

Step 6. Filling of gaps: After the prefabricated luminous floor tiles are installed, pour cement slurry with a water-cement ratio of more than 1:2 in the gaps between the pavement and the prefabricated concrete components and in the grooves of the embedded steel bars to ensure that it is in line with the original pavement. Flat, and maintenance molding;

Step 7: Connect the 220v power supply and the signal light control box to debug the light.

By adopting the above technical scheme: the prefabricated smart traffic sign pavement structure adopts the construction process of factory prefabrication and on-site assembly, which can significantly reduce the workload of on-site pouring, with reliable structure quality, high degree of mechanization, and high construction efficiency. Connecting prefabricated components with prestressed steel bars and using rubber caulking material for transition can not only improve the ability of the joints to transmit loads, thereby improving the durability of the pavement structure and driving comfort; it can also prevent the pavement from cracking due to thermal expansion and contraction, enhancing Its crack resistance and waterproof properties.

The present invention also provides a post-tensioned prestressed assembled smart traffic sign pavement structure, comprising a plurality of prefabricated concrete blocks connected in sequence, each of the prefabricated concrete blocks is provided with a luminous brick for installing luminous bricks A groove is provided inside the prefabricated concrete block with a circular drainage groove running through the front and rear. The upper surface of the circular drainage groove is provided with a trough-shaped steel member for installing and fixing PVC wiring pipes. The PVC wiring pipes It is tangentially connected to the channel-shaped steel member, and the PVC wiring pipe is interspersed with cables; the top and bottom of the precast concrete block are respectively provided with two strip-shaped grooves, and each strip-shaped groove is There are prestressed rib channels inside, and the prestressed rib channels extend obliquely to the front end or the rear end of the precast concrete block.

Preferably, a bellows tube is inserted into the prestressed rib channel, and a prestressed steel bar is arranged in the bellows tube. Both ends of the prestressed steel bar are fixedly connected to the precast concrete block through anchor bolts. Reinforcing bars are used to connect the precast concrete blocks on the front and rear sides.

Preferably, a pavement rubber caulking strip is arranged between the light-emitting bricks and the grooves of the light-emitting bricks.

Preferably, a rubber waterstop is provided between two adjacent precast concrete blocks.

Preferably, the strip-shaped grooves are distributed on the left and right sides of the light-emitting brick grooves.

By adopting the above technical scheme: the precast concrete block members are tightly tied by prestress, which provides sufficient compressive stress reserve for the precast members, and the force deformation is scientific and reasonable; the assembly has strong integrity and can effectively realize vertical To shear load transfer and stress transfer between adjacent precast blocks.

The present invention has the following beneficial effects:

1. The present invention adopts the construction process of factory prefabrication and on-site assembly for the prefabricated intelligent traffic sign pavement structure, which can significantly reduce the workload of on-site pouring, with reliable structure quality, high degree of mechanization, and high construction efficiency. Compared with the cast-in-place method, it can reduce noise, prevent dust, reduce environmental pollution, and reduce the impact on urban traffic.

2. In the present invention, the prefabricated concrete block members are tightly tied by the prestress, which provides sufficient compressive stress reserve for the prefabricated members, and the force deformation is scientific and reasonable; the assembly has strong integrity and can effectively realize the vertical Shear load transfer and stress transfer between adjacent precast blocks.

3. The invention fills the precast concrete blocks with rubber waterstops as connecting materials, which can not only improve the ability of the joints to transmit loads, thereby improving the durability of the pavement structure and driving comfort; it can also prevent the pavement from expanding and contracting due to heat and cold. And cracking, enhance its crack resistance and waterproof performance.

4. Since the present invention adopts the prefabricated assembly technology, the durability of the structure and the appearance quality are greatly improved. The original pavement surface quality control points of the structure are concentrated to linear control points such as structural joints, and the flatness of the structure surface can be accurate to the millimeter level, which realizes the standardized construction and refined management of the pavement structure; increases the construction period by 70% and reduces the The accident probability is 50%, and the cost is saved by 30%.

5. In the present invention, the light-emitting bricks and pipelines are independent of each other, which is convenient for maintenance. The reserved circular drainage groove has good mechanical performance, and can use its own slope to discharge the accumulated water into the collection well, with good drainage performance.

Description of drawings

Fig. 1 is the overall schematic diagram after the installation of the present invention is completed;

Fig. 2 is the structural representation of a single precast concrete block in the present invention;

3 is a sectional view of a single precast concrete block standard block in the present invention (with two prestressed tendon channels);

Fig. 4 is a sectional view of the edge block of a single precast concrete block in the present invention (with a reserved steel bar channel);

Fig. 5 is the structural schematic diagram of the light-emitting brick and the road rubber caulking strip in the present invention;

6 is a schematic structural diagram of the connection of two adjacent precast concrete blocks using prestressed steel bars in the present invention;

7 is a cross-sectional view of the side surface of the pavement structure of the smart traffic sign after the assembly of the present invention is completed.

In the picture: 1 precast concrete block, 2 light-emitting bricks, 3 road rubber caulking strips, 4 rubber waterstops, 5 anchor bolts, 6 PVC wiring pipes, 7 cables, 8 grooved steel members, 9 grooves , 10 prestressed rib channels, 11 circular drainage channels, 12 light-emitting brick grooves, 13 prestressed steel bars.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below, so that those skilled in the art can better understand the advantages and features of the present invention, and thus make a clearer definition of the protection scope of the present invention. The described embodiments of the present invention are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work For example, all belong to the protection scope of the present invention.

1-7, an installation method of a post-tensioned prestressed assembled smart traffic sign pavement structure, the installation method includes the following steps:

Step 1, making a single precast concrete block member: as shown in Figure 2 and Figure 5, in the precast member processing plant precast concrete block, length L=1～1.2m, width D=400～450mm, height H=250～350mm; The size of the known luminous brick is L _luminous × D _luminous × h _luminous = 450mm × 250 mm × 55 mm; the length of the groove of the luminous bricks reserved on the precast concrete block is L ₁ = L _luminous + (15-20) mm, width d ₁ = d _light + (15～20) mm, height h ₂ = h _light = 55mm; the reserved circular drainage groove is located at 1/3 to 1/2 of the height of the bottom of the concrete block, the diameter of the drainage groove d _drainage = 1/3H; the upper part of the reserved circular drainage groove is provided with a trough-shaped steel member, which is used to install and fix the PVC wiring pipe and is tangent to the PVC wiring pipe. The slope of the prestressed rib is oriented to the direction of the water collecting well to ensure that the water can be discharged in time in rainy weather or under the condition of stagnant water; the opening size of the reserved prestressed rib channel d _channel = d _{steel bar} + (1 ~ 2) mm; The net distance between the reserved prestressed rib channel 10 and the edge of the precast concrete block member shall not be less than 30mm, and shall not be less than 50% of the diameter of the channel, which meets the relevant requirements for the arrangement of post-tensioned prestressed tendons and reserved channels in the "Code for Design of Concrete Structures". Regulations; the cutting strip grooves are located in the middle of the top and bottom of the precast concrete block respectively, the length L ₂ =1/10L, the width d ₂ =d _channel + (15～20)mm, the depth h ₂ =(1/5～ 1/6) H; Fig. 3 is a single precast concrete block standard block member, which is provided with two prestressed tendon channels, which are respectively connected with the precast members on both sides. Figure 4 shows a single prefabricated concrete block edge block member, each with a reserved steel bar channel, which is connected to the single-sided prefabricated member; after the single precast concrete block member is completed, it is transported to a designated location for installation and construction.

Step 2. Excavate and cut the pavement strip foundation groove: arrange professional surveyors to measure, locate and lay out the line at the milling pavement, and determine the width and depth of the excavated pavement strip foundation groove; excavate the pavement strip foundation groove The width should be 10-20mm wider than the precast concrete members, and the depth should be 10-20mm deeper than the thickness of the precast concrete members. The thickness is 10-20mm.

Step 3. Tension of prestressed steel bars: as shown in Figure 6, first place a rubber waterstop between adjacent precast concrete blocks, and the thickness of the rubber waterstop is 8 to 12 mm; then reserve prestressing on the precast concrete members The corrugated pipe is inserted into the rib channel, the prestressed steel bar is implanted, and the two ends of the prestressed steel bar are anchored on the precast concrete block with anchor bolts. Pass it to the precast concrete block to generate pre-compression stress; finally remove the jack, pour cement slurry into the tunnel for tunnel grouting, cut off the exposed steel bars, clean the cement slurry at the end of the precast member, and use concrete for anchor sealing protection. Integrate prestressed steel bars with precast concrete elements.

Step 4. Put the prefabricated components of the luminous floor tiles into the strip foundation groove: use a crane to vertically place the prefabricated components that have been stretched by the post-tensioning method into the excavated pavement strip foundation groove according to the positioning line;

Step 5. Install the light-emitting brick components: as shown in Figure 7, first put the Ф40 PVC wiring pipe into the channel-shaped steel member, thread the cable, and put the light-emitting brick into the reserved groove for the light-emitting brick. The blocks and the precast concrete blocks are connected by pavement rubber caulking strips to ensure good impermeability and structural integrity;

Step 6. Filling of gaps: After the prefabricated luminous floor tiles are installed, pour cement slurry with a water-cement ratio of more than 1:2 in the gaps between the pavement and the prefabricated concrete components and in the grooves of the embedded steel bars to ensure that it is in line with the original pavement. Flat, and maintenance molding;

Step 7: Connect the 220v power supply and the signal light control box to debug the light.

In this embodiment, the prefabricated smart traffic sign pavement structure adopts the construction process of factory prefabrication and on-site assembly, which can significantly reduce the workload of on-site pouring, with reliable structure quality, high degree of mechanization, and high construction efficiency. Compared with the cast-in-place method, it can reduce noise, prevent dust, reduce environmental pollution, and reduce the impact on urban traffic. Due to the use of prefabricated technology, the durability and appearance quality of the structure are greatly improved. The original pavement surface quality control points of the structure are concentrated to linear control points such as structural joints, and the flatness of the structure surface can be accurate to the millimeter level, realizing the standardized construction and refined management of the pavement structure. Increase the construction period by 70%, reduce the probability of accidents by 50%, and save costs by 30%.

A post-tensioned prestressed prefabricated smart traffic sign pavement structure, comprising a plurality of prefabricated concrete blocks 1 connected in sequence, each of the prefabricated concrete blocks 1 is provided with a light-emitting brick groove for installing the light-emitting bricks 2 12. There is a circular drainage groove 11 running through the front and rear of the precast concrete block 1, and the circular drainage groove 11 is arranged below the groove 12 of the light-emitting brick; the top surface of the circular drainage groove 11 is provided with a In order to install and fix the channel-shaped steel member 8 of the PVC cable duct 6, the PVC cable duct 6 is connected tangentially with the channel-shaped steel member 8, and the cable 7 is interspersed in the PVC cable duct 6; the precast concrete The top and bottom of the block 1 are respectively provided with two strip-shaped grooves 9, and each strip-shaped groove 9 is provided with a prestressed tendon channel 10, and the prestressed tendon channel 10 extends obliquely to the precast concrete. Front or rear end of block 1.

The strip-shaped grooves 9 are distributed on the left and right sides of the light-emitting brick groove 12; here, two strip-shaped grooves 9 are provided at the top of the precast concrete block 1, and two are also set at the bottom of the precast concrete block 1. There are two strip-shaped grooves 9, and the two strip-shaped grooves 9 are correspondingly arranged up and down and left and right. In practical application, it can also be designed according to specific conditions to meet actual use needs.

Specifically, a corrugated pipe is penetrated into the prestressed rib channel 10 , and the corrugated pipe is provided with a prestressed steel bar 13 , and both ends of the prestressed steel bar 13 are fixedly connected to the precast concrete block 1 through anchor bolts 5 . , the prestressed steel bars 10 are used to connect the precast concrete blocks 1 on the front and rear sides.

In this embodiment, the prestressed prefabricated smart traffic sign pavement structure utilizes the prestressing force of the prestressed steel bars 13 to tightly tie two adjacent precast concrete blocks 1 together, providing sufficient compressive stress reserve for the prefabricated components, and the stress The deformation is scientific and reasonable; the assembly has a strong integrity, which can effectively realize the vertical shear load transfer and the stress transfer between adjacent prefabricated blocks. At the same time, the luminous bricks and pipelines are independent of each other, which is convenient for maintenance; the reserved circular drainage groove has good mechanical performance, and the self-slope can be used to discharge the accumulated water into the water collection well, and the drainage performance is good.

Specifically, a pavement rubber caulking strip 3 is provided between the light-emitting bricks 2 and the grooves 12 of the light-emitting bricks.

In this embodiment, the use of pavement rubber caulking strips 3 can increase the toughness between prefabricated components, prevent the pavement from cracking due to thermal expansion and contraction, reduce the risk of hidden dangers of driving safety, and improve the durability of the structure and the driving comfort.

Specifically, a rubber waterstop 4 is provided between two adjacent precast concrete blocks 1 .

In this embodiment, by filling a rubber waterstop between two adjacent precast concrete blocks as a connecting material, not only the ability of the joint to transmit loads can be improved, but also its crack resistance and waterproof performance can be enhanced.

The description and practice disclosed in the present invention are easy to think and understand for those skilled in the art, and several improvements and modifications can be made without departing from the principles of the present invention. Therefore, modifications or improvements made without departing from the spirit of the present invention should also be regarded as the protection scope of the present invention.

Claims (6)

1. an installation method of post-tensioning method prestressed assembly type intelligent traffic sign pavement structure, is characterized in that, this installation method may further comprise the steps: Step 1. Make a single precast concrete block member: precast concrete block in a precast member processing plant, length L=1～1.2m, width D=400～450mm, height H=250～350mm; the size of the known luminous brick is L _Luminescence ×D _Luminescence ×h _Luminescence =450mm×250mm×55mm; on the prefabricated concrete block reserved luminous brick groove length L ₁ =L _Luminescence +(15～20)mm, width d ₁ =d _Luminescence +(15～20)mm 20) mm, height h ₂ = h _light = 55 mm; reserved circular drainage grooves are located at 1/3 to 1/2 of the height above the bottom of the concrete block, drainage groove diameter d _drainage = 1/3H; reserved circular drainage grooves The upper part of the water tank is provided with a trough-shaped steel member, which is used to install and fix the PVC wiring pipe and is tangent to the PVC wiring pipe. Ensure that the water can be discharged in time in rainy weather or in the presence of accumulated water; the opening size of the reserved prestressed rib channel is d _channel = d _{steel bar} + (1 ~ 2) mm; the cutting strip grooves are located in the precast concrete. The middle position of the top and bottom of the block, length L ₂ =1/10L, width d ₂ =d _channel + (15～20)mm, depth h ₂ =(1/5～1/6)H; single precast concrete block member After the production is completed, transport to the designated location for installation and construction; Step 2. Excavate and cut the pavement strip foundation groove: arrange professional surveyors to measure, locate and lay out the line at the milling pavement, and determine the width and depth of the excavated pavement strip foundation groove; excavate the pavement strip foundation groove The width should be 10-20mm wider than the precast concrete members, and the depth should be 10-20mm deeper than the thickness of the precast concrete members. The thickness is 10～20mm; Step 3. Tension of prestressed steel bars: First, place rubber waterstops between adjacent precast concrete blocks, and the thickness of the rubber waterstops is 8 to 12 mm; Corrugated pipe, implant prestressed steel bars, and use anchor bolts to anchor both ends of the prestressed steel bars on the precast concrete blocks, then use jacks to tension the prestressed steel bars, and rely on the end anchors to transmit the prestressed tension to the precast concrete blocks. , so as to generate pre-compression stress; finally remove the jack, pour cement slurry into the tunnel for tunnel grouting, cut off the exposed steel bars, clean the cement slurry at the end of the prefabricated member, and use concrete for anchoring protection, so that the prestressed steel bars and the Precast concrete elements form a whole; Step 4. Put the prefabricated components of the luminous floor tiles into the strip foundation groove: use a crane to vertically place the prefabricated components that have been stretched by the post-tensioning method into the excavated pavement strip foundation groove according to the positioning line; Step 5. Install the light-emitting brick components: First, pass the Ф40 PVC wiring pipe into the channel steel member, pass the cables, and put the light-emitting bricks into the reserved grooves of the light-emitting bricks. The light-emitting bricks and precast concrete blocks They are connected by road rubber caulking strips to ensure good impermeability and structural integrity; Step 6. Filling of gaps: After the prefabricated luminous floor tiles are installed, pour cement slurry with a water-cement ratio of more than 1:2 in the gaps between the pavement and the prefabricated concrete components and in the grooves of the embedded steel bars to ensure that it is in line with the original pavement. Flat, and maintenance molding; Step 7: Connect the 220v power supply and signal light control box to debug the light. 2. A post-tensioning prestressed prefabricated smart traffic sign pavement structure, comprising several prefabricated concrete blocks (1) connected in sequence, characterized in that each described prefabricated concrete block (1) is provided with a pavement for installation The luminous brick groove (12) of the luminous brick (2), the precast concrete block (1) is provided with a circular drainage groove (11) running through the front and rear, and the top surface of the circular drainage groove (11) is A channel-shaped steel member (8) for installing and fixing a PVC wiring conduit (6) is provided, the PVC wiring conduit (6) is tangentially connected to the channel-shaped steel member (8), and the PVC wiring conduit ( 6) A cable (7) is interspersed inside; the top and bottom middle positions of the precast concrete block (1) are respectively provided with two strip grooves (9), each of which is in the strip groove (9). Both are provided with a prestressed rib channel (10), the prestressed rib channel (10) extending obliquely to the front end or the rear end of the precast concrete block (1). 3. A post-tensioned prestressed assembled smart traffic sign pavement structure according to claim 2, wherein a corrugated pipe is inserted into the prestressed rib hole (10), and the corrugated pipe is provided with Prestressed steel bars (13), both ends of the prestressed steel bars (13) are fixedly connected to the precast concrete blocks (1) through anchor bolts (5), and the prestressed steel bars (10) are used to connect the front and rear sides of precast concrete blocks (1). 4. A post-tensioned prestressed assembled smart traffic sign pavement structure according to claim 2, wherein a pavement is provided between the light-emitting bricks (2) and the light-emitting brick grooves (12). Rubber caulk (3). 5. A post-tensioned prestressed prefabricated smart traffic sign pavement structure according to claim 2, wherein a rubber waterstop (4) is provided between two adjacent precast concrete blocks (1). ). 6. A post-tensioned prestressed assembled smart traffic sign pavement structure according to claim 2, wherein the strip grooves (9) are distributed on the left and right sides of the light-emitting brick grooves (12). side.

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