KR20120062483A - Method for constructing joint part of structure using expension join - Google Patents

Abstract

PURPOSE: A method for constructing a joint part of a structure using a connection member is provided to improve durability and water tightness by installing a molding seal on the damaged part of a joint. CONSTITUTION: A method for constructing a joint part of a structure using a connection member is as follows. An installation space(510) is formed by cutting a damaged part formed on a joint(600) of concrete pavement and removing foreign materials. A precast body(210) is located at the damaged part, and a precast member(200) for a joint is installed on the installation space to support the precast body using reinforcing bars(220). Post-placing concrete(300) is placed on the installation space to integrate the precast member in the joint at the installation space. A molding seal(400) is installed in the joint of the concrete pavement through adhesive.

Description

Method for constructing joint part of structure using Expension Join}

The present invention relates to a joint construction method of a structure using a connecting member, by using a connecting member including a precast member and a molding seal can be quickly joined to the expansion joint or joint of the bridge, and excellent durability and watertightness It relates to a joint construction method of the structure using a connecting member to be improved.

In general, the expansion joints corresponding to the temperature and dry shrinkage of bridge structures are severely damaged and generate noise due to continuous and repeated impact loads caused by traffic loads, and various products and methods have been developed accordingly.

These expansion joints are mainly composed of steel or aluminum to secure the bearing capacity of the expansion and contraction part, weld them to the upper reinforcing bar and reinforce with futa concrete.

Therefore, repeated impact loads due to the step difference between the steel and the concrete are causing frequent breakage of the expansion joint itself.

In particular, the futa concrete part is repaired with superhard concrete to open traffic in the shortest time, but superhard concrete has many breakages due to lack of chemical resistance to calcium chloride.

In addition, the bridge shoe that supports the beam behavior of the bridge is located in the lower part where the expansion joint is located, so the waterproof joint of the expansion joint is required.

When new expansion joint is installed, it installs U-shaped waterway with rubber plate in the lower part, but it is unable to fulfill its role due to precipitation of foreign matters, and it may cause problems in new construction due to solidification of foreign matters. In this case, maintenance such as periodic cleaning is necessary, but perfect cleaning work is often difficult at the top.

Maintenance of expansion joints of bridges is the most important inspection factor of bridge structures, and there are many factors to improve such as securing the durability of the expansion joints themselves and futa concrete, reducing noise, waterproofing, and eliminating foreign matters.

In addition, in the concrete road using a cutter to cut at regular intervals to form a groove, which is called a joint.

The joint is constructed in order to prevent the concrete road from being damaged by expansion or contraction according to the season, and is the same principle as installing the train rails which are expanded and contracted at regular intervals.

These joints need to be jointly repaired with new joints due to sporadic local breakage of joint edges due to freeze-thawing due to rainwater penetration and repeated vehicle shock loads, but the construction is complicated and the lane overlaps the overtaking lane. There are difficulties in traffic control when repairing.

These joint breakages are rapidly expanded when left unattended and can also cause large traffic accidents.

An object of the present invention for solving the above problems, bridge structures, building structures, when the construction or construction of new joints or joints of concrete pavement, by using a wear-resistant concrete as a connecting member to produce a precast member Structures using connecting members to install the molding seal absorbing the compression and tensile behavior between the precast members and to provide quick and easy construction, and to absorb and waterproof the compression and tensile behavior according to the stretching behavior. We provide joint construction method of joint.

The present invention to achieve the object as described above and to perform the problem to eliminate the conventional defects, the structure by thermal expansion and contraction by jointing the structure joints formed using the connection member formed to reduce the occurrence of cracks It is characterized by suppressing the cracks.

In addition, the joint is characterized in that the joint or one of the joints or expansion joints selected from the bridge structure, building structure, concrete pavement.

In addition, the joint is a joint joint part of the concrete pavement, the joint member when the joint construction while repairing the joint joint, the precast body made of abrasion-resistant concrete, embedded in the precast body and partially exposed downwardly inclined It is characterized in that the molding seal is installed between the joint precast member and the joint precast member made of reinforcing bars to support the precast body and improve the adhesion during concrete placement.

In addition, the construction process in the case of the joint construction while repairing the joint joint of the concrete pavement using the joint precast member and the molding seal, to cut the damaged part of the joint joint to remove the foreign matter to secure the installation space Breakage site cleanup step; A joint precast member installation step of installing a joint precast member in the installation space, wherein the joint precast member is positioned at the corner of the damaged part and is supported to support the precast body with rebar; Futa concrete placing step of placing concrete in the installation space to the joint precast member to be integrated in the joint of the concrete pavement in the installation space; It characterized in that it comprises a molding seal attaching step of applying an adhesive to the joint and install a molding seal.

In addition, the joint is a joint part of the concrete pavement, the connection member when the joint is repaired or newly established, characterized in that the molding seal is installed to be fitted to the joint.

In addition, the construction process when the joint construction while repairing the joint joint of the concrete pavement using the molding seal, the damage site arrangement step of arranging the damaged site of the joint joint; A molding seal attaching step of applying an adhesive to the joint and inserting a molding seal into the joint; Futa concrete pouring step of placing concrete on the damaged part in the state that the molding seal is sealed with a cover; When the concrete is cured, characterized in that it comprises a cover removing step of removing the cover.

In addition, the construction process when the joint construction of the concrete pavement joint using the molding seal is applied by applying an adhesive to the joint, and inserting the molding seal to the joint joint to which the adhesive is applied It is characterized by the joint construction of the joint.

In addition, when the joint is a stretch joint of the bridge structure, the connection member is made of wear-resistant concrete and precast body is formed with a plurality of fingers on one side to be installed while overlapping each other, and embedded in the precast body And a part of which is exposed downwardly and comes in contact with the floor to support the precast body and is formed between the precast member for expansion joints made of reinforcing bars and the finger which improves adhesiveness when placing concrete, and a molding seal installed between the fingers. .

In addition, the expansion joint construction process of the bridge structure using the precast member and the molding seal for the expansion joint, securing a space for securing the installation space for the construction of the expansion joint precast member on the bridge structure around the expansion joint step; A precast member installation step of installing a expansion joint precast member for supporting the precast body with the fingers of the precast bodies overlapping each other and then applying the primer to the installation space; Futa concrete placing step of placing concrete in the installation space so that the precast member for expansion joint can be integrated into the bridge structure in the installation space; It comprises a; connecting step for connecting the expansion joint by attaching a molding seal between the fingers.

In addition, the anchor is installed in the installation space and the reinforcing bar is installed to be fixed to the anchor is characterized in that the expansion joint precast member can be more firmly fixed.

As described above, the present invention improves the quality performance by precasting damaged parts of expansion joints and joint joints that are frequently repaired and lack durability by constructing them under poor conditions, and improving the quality of the same material as the precast members. It is possible to minimize the traffic control by post-installation to improve the noise reduction and ride comfort, install the molding seal, eliminate the waterproofing performance and the accumulation of foreign matters, and enable the quick construction using the precast member and the fast-hard concrete. It is possible to quickly construct and repair the joint edges, and to improve the durability and watertightness by newly forming concrete pavement and installing molding seals on the damaged parts of joint joints. It is a very useful invention.

1 is a perspective view showing a joint precast member used in the construction of the joint joint of the concrete pavement according to the present invention,
Figure 2 is a side view showing a joint precast member used when the joint construction of the concrete pavement according to the present invention,
3 is an exemplary view showing a state in which an installation space is formed by removing a damaged part of a joint part;
Figure 4 is an exemplary view showing a state in which the joint construction while repairing the joint joint of the concrete pavement using the joint precast member and the molding seal according to the present invention,
Figure 5 is a cross-sectional view showing the state of the joint construction while repairing the joint of the concrete pavement using the joint precast member and the molding seal according to the present invention,
6 is a cross-sectional view showing a state of the joint construction while repairing the joint of the concrete pavement using the molding seal according to the present invention,
Figure 7 is a cross-sectional view showing the state of the joint construction while establishing a joint joint of concrete pavement using the molding seal according to the present invention,
8 is a perspective view showing a precast member for expansion joint used in the construction of the expansion joint of the bridge structure according to the present invention,
Figure 9 is a side view showing a precast member for expansion joint used in the construction of the expansion joint of the bridge structure according to the present invention,
10 is a plan view showing the expansion joint joint state of the bridge structure using the precast member for expansion joint according to the present invention,
11 is a cross-sectional view showing a joint construction state of the expansion joint of the bridge structure using the precast member for expansion joint according to the present invention;
12 is an exemplary view showing a state in which the rebar of the expansion joint precast member according to the present invention fixed with an anchor,

Hereinafter, the configuration and the operation of the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The present invention is to suppress the occurrence of cracks in the structure due to thermal expansion and contraction by jointing the joints formed in the structure using a connecting member to reduce the occurrence of cracks.

1 is a perspective view showing a joint precast member used in the construction of the joint joint of the concrete packaging according to the present invention, Figure 2 shows a joint precast member used in the construction of the joint joint of the concrete packaging according to the present invention 3 is an exemplary view showing a state in which an installation space is formed by removing a damaged part of a joint part, and FIG. 4 is a joint part of a concrete pavement using a precast member and a molding seal for joints according to the present invention. 5 is a cross-sectional view showing a state in which the joint construction while repairing the joint joint of the concrete pavement using the joint precast member and the molding seal according to the present invention, FIG.

As shown in the drawings, the joint part according to an embodiment of the present invention is a joint part 600 of the concrete pavement, and the connection member when the joint is constructed while repairing the joint part 600 of the concrete pavement is for joints. Molding seal 400 is installed between the precast member 200 and the joint precast member 200.

The joint precast member 200 is a precast body 210 made of abrasion resistant concrete, and the precast body 210 is embedded in the precast body 210 and partly exposed downward to touch the floor. It consists of reinforcing bars 220 to support and improve the adhesion during concrete pouring.

In order to repair the joint joint 600 of the concrete pavement using the joint precast member 200 and the molding seal 400 as described above, first, the damage formed in the joint joint 600 of the concrete pavement After cutting the part 610 and removing the foreign matters, the step of arranging the damaged part to secure the installation space 510, and installing the joint precast member 200 in the installation space 510, the precast body 210. And a precast member installation step for installing the joint to be positioned at the corner of the damaged part 610 and supporting the precast body 210 with the reinforcing rod 220, and the futa concrete 300 in the installation space 510. Futa concrete placing step to be jointed to the joint precast member 200 in the installation space 510 on the installation space 510, and glued to the joint joint 600 of the concrete pavement Apply It comprises the steps of: forming seals install hyeongssil 400.

The reinforcing bar 220 is installed so as to contact the bottom surface of the installation space 510 to prevent the joint precast member 200 is inclined or inverted in the installation space, futa being poured in the installation space 510 It is to improve the adhesiveness with the concrete (300).

The present invention according to one embodiment such as the precast member 200 for joints in a state in which the damaged parts 610 formed in the joint portion 600 of the concrete pavement simply arranged and secured the installation space 510 Installation of the molding seal 400 and through the futa concrete can be easily connected while repairing the damaged portion 610.

The molding seal 400 is configured to withstand prolonged exposure by molding a polyethylene material into a microstructure to cope with compression and tension, gap, or vertical stress.

In addition, it has strong chemical resistance to ozone, oil, ultraviolet ray, calcium chloride, etc., and has excellent waterproof function.

When the molding seal 400 is installed in the joint part 600 of the concrete pavement as described above, it is installed to prevent water from flowing into the joint part 600 of the concrete pavement.

6 is a cross-sectional view showing the state of the joint construction while repairing the joint joint of the concrete pavement using the molding seal according to the present invention, the joint construction while repairing the joint joint 600 of the concrete pavement according to another embodiment In the case of the connecting member is a molding seal (400).

When the joint construction while repairing the joint joint 600 of the concrete pavement using such a molding seal 400, first to break the damage site to clean up the damaged part 610 of the joint joint 600 of the concrete pavement; And a molding seal attaching step of applying an adhesive to the joint part 600 of the concrete pavement and inserting a molding seal 400 thereinto, and in the state where the molding seal 400 is sealed with the cover 420, the damaged part. The futa concrete is poured into 610 to fill the damaged part 610, and the futa concrete pouring step is configured to include a cover removing step of removing the cover 420 when the futa concrete is cured.

Here, the molding seal 400 exhibits the effect of the formwork that prevents the futa concrete 300 poured into the damaged part 610 from entering the joint 600 of the concrete pavement and at the same time the futa concrete 300 ) Is cured to prevent the water from entering or entering the joint part 600 of the concrete pavement.

In addition, the cover 420 may use a tape, and prevents the molded seal 400 from hardening by blocking the futa concrete from being placed on the damaged part 610 from directly contacting the molding seal 400.

The construction method of the joint damaged part 600 of the concrete pavement according to another embodiment is simple by attaching a molding seal 400 to the damaged part 610 and pouring the futa concrete 300 to the damaged part 610 to fill it. The construction can be done quickly, and the repair work can be done quickly so that the controlled traffic can be opened as soon as possible.

7 is a cross-sectional view showing a state in which the joint construction of the concrete pavement using the molding seal according to the present invention, the joint construction 600, the joint joint 600 of the concrete pavement using the molding seal 400 In the case of new joint construction, the construction process is applied by applying an adhesive to the joint 600 of the concrete pavement and inserting the molding seal 400 into the joint 600 of the concrete pavement where the adhesive is applied. This can be done by jointing.

Such the present invention can be simply connected to the joint joint 600 of the concrete pavement simply by installing the molding seal 400 on the joint joint 600 of concrete pavement construction is easy and quick joint construction It becomes possible.

8 is a perspective view showing a precast member for expansion joint used in the construction of the expansion joint of the bridge structure according to the present invention, Figure 9 is a precast member for expansion joint used in the construction of the expansion joint of the bridge structure according to the present invention 10 is a plan view showing the expansion joint joint state of the bridge structure using the precast member for expansion joint according to the present invention, Figure 11 is a bridge structure using the precast member for expansion joint according to the present invention 12 is a cross-sectional view showing a state of expansion joint joint construction, Figure 12 is an exemplary view showing a state of fixing the reinforcing bar of the precast member for expansion joint according to the present invention,

On the other hand, when the joint is the expansion joint 500 of the bridge structure, the connecting member is installed between the expansion joint precast member 100 and the expansion joint precast member 100 to behave in compression tension, gap It is configured to include a molding seal (400).

The expansion joint precast member 100 is made of wear-resistant concrete and a precast body 110 is formed with a plurality of fingers 111 on one side to be installed while overlapping each other, and the precast body 110 ) Is embedded in the bottom portion is exposed obliquely to the bottom to contact the floor is configured to include a reinforcing rod 120 to support the precast body 110 and to improve adhesion during futa concrete placement.

In order to construct the expansion joint 500 of the bridge structure using the expansion joint precast member 100 and the molding seal 400, first, the bridge structure A space securing step of securing an installation space 510 for constructing the expansion joint precast member 100 based on the expansion joint 500, and a precast body after applying a primer to the installation space 510. Finger joints of the 110 (110) overlap each other, the expansion joint precast member installation step of installing the expansion joint precast member 100 to support the precast body 110 with the reinforcing rod 120, and Futa concrete placing step by placing the futa concrete 300 in the installation space 510 so that the expansion joint precast member 100 can be integrated into the bridge structure on the installation space 510, and between the finger 110 Attached to the forming seal 400 is configured to include a connecting step for connecting the expansion joint 500 of the bridge structure.

On the other hand, the edge portion of the end of the finger 111 of the expansion joint precast member 100 is the portion that receives the most impact of the vehicle to the chamfer 130 to mitigate the impact of the vehicle.

The molding seal 400 is installed to be sandwiched between the fingers 111 by applying an adhesive to the finger 111, and also to form an adhesive to improve the adhesive force when the molding seal 400 is attached to the adhesive seal 400 and the finger ( 111 can be applied by all.

On the other hand, the molding seal 400 is installed to be located below the top of the precast member 100 for expansion joints so as not to directly contact the wheel of the vehicle, for expansion joints so that the clean state can always be maintained without the accumulation of foreign matter It is installed to be located at the bottom of the 5 ~ 8mm in the lower direction from the top end of the precast member 100.

That is, by installing lower than the expansion joint precast member 100, it is possible to prevent damage by the vehicle passing through the expansion joint 500 of the bridge structure and at the same time to prevent the accumulation of foreign matter.

On the other hand, the present invention may be installed at the time of installation of the expansion joint precast member 100, by installing the spacer 410 between the expansion joint precast member 100 to be able to perform the expansion joint construction of both sides at the same time. have.

That is, when the expansion joint precast member 100 is installed on both sides of the expansion joint 500 of the bridge structure, the spacer is disposed between the expansion joint precast members 100 facing each other, that is, between the fingers 111. By installing 410, simultaneous construction is possible on both sides of the expansion joint 500 while maintaining a constant interval of expansion joint precast members 100.

In this way, by using the spacer 410 is installed to maintain a constant interval of the expansion joint precast member 100 and the caster concrete 300 is cast to secure the expansion joint precast member 100, the interval After removing the ash 410, the adhesive is applied between the precast member 100 for expansion joints and the molding seal 400 is installed.

Here, the spacer 410 may use a conventional styrofoam that is easy to process and light in weight, and may be installed at predetermined intervals between the expansion joint precast members 100 or as a whole.

Meanwhile, the anchor 700 is installed in the installation space 510 and the reinforcement 120 is installed to be fixed to the anchor 700 so that the expansion joint precast member 100 can be more firmly fixed in the installation space 510. To help.

That is, by fixing the expansion joint precast member 100 to the anchor 700 so as not to flow on the installation space 510, when the expansion joint precast member 100 does not flow when the molding seal 400 is installed It is possible to easily exhibit the waterproofing and impact mitigation effect through the molding seal 400 without generating an error.

Meanwhile, even when the joint precast member 200 is installed, the anchor 700 is installed in the installation space 510 and the rebar 220 of the joint precast member 200 is connected to the anchor 700. It can also be installed.

Meanwhile, the present invention is not limited to the expansion joint 500 of the bridge structure and the joint joint 600 of the concrete pavement, and the joint member of the bridge structure, the joint part of the road and the building structure also has a connection member. The joint construction is possible.

That is, it can be applied to all joints or new joints that occur in roads and building structures such as underground tunnels and sewage treatment plants.

Meanwhile, the wear-resistant concrete used in the production of the joint precast member 200 and the expansion joint precast member 100 may be formed by mixing a particle size adjusting aggregate and a polyurethane, or mixing a polymer concrete and a particle size adjusting aggregate. In addition to absorbing the impact load of the vehicle, it is possible to exhibit wear resistance and high durability.

The particle size adjusting aggregate uses the dried silica aggregate of Table 1.

Body size Percent Passed Remarks 6 100 * Aggregate uses dried silica aggregate 12 95-100 20 50-60 30 30-50 40 10-20 50 2 ~ 6 70 0 ~ 1 100 -

In addition, the particle size adjusting aggregate 100 and polyurethane or polymer are blended in a proportion of 15 to 20. Wear-resistant concrete has excellent water resistance and chemical resistance to calcium chloride, and can minimize traffic blocking time by exhibiting fast curing that can cure within 1 to 2 hours.

By using the wear-resistant concrete as described above by manufacturing and constructing the joint precast member and the expansion joint precast member, it is excellent in the durability and quality performance of the expansion joint and the joint damage, it is possible to shorten the installation time.

It is preferable that the wear-resistant concrete satisfies the performance of [Table 2] in order to exhibit long-term durability.

Item Quality performance Test Methods Compressive strength (㎏ / ㎠) 250 ASTM C-579 Flexural strength (㎏ / ㎠) 90 ASTM D-3967 Curing time (min) 50 ASTM D 2240 Adhesive strength (㎏ / ㎠) 30 ASTM D 882

On the other hand, the molding seal 400 according to each embodiment is configured to withstand long-term exposure by molding a polyethylene material in a microstructure so as to cope with compression and tension and gap or vertical stress.

In addition, it has strong chemical resistance to ozone, oil, ultraviolet ray, calcium chloride, etc., and has excellent waterproof function.

Such a molding seal 400 should satisfy the performance as shown in [Table 3].

Item Quality performance Test Methods Compression, tensile 60%, 30% ASTM D 3575 Tensile Strength (㎏ / ㎠) 5 〃 Waterproof 3% less than 〃

In addition, the adhesive for bonding the molding seal satisfies the performance as shown in [Table 4].

Item Quality performance Test Methods Compressive strength (㎏ / ㎠) 500 ASTM D 638 Tensile Strength (㎏ / ㎠) 200 ASTM D 638 Adhesive strength (㎏ / ㎠) 35 or more ASTM D 624

Meanwhile, in each of the embodiments, the concrete poured in the futa concrete pouring step is poured into a wear-resistant concrete having the same material as that of the wear-resistant concrete used in the production of the joint precast member 200 and the expansion joint precast member 100.

This wear-resistant concrete has a self-leveling function, tightly filled to the gap, and curing time can be quickly installed within 2 hours.

In addition, the caster concrete 300 is cast with concrete of the same material as the joint precast member 200 and the expansion joint precast member 100, so that the adhesive strength is excellent and the joint surface is formed evenly, thereby improving durability and driving the vehicle. Reduce noise and improve ride comfort.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

100: precast member for expansion joint (110): precast body
(111): Finger 120: Rebar
(130): chamfer (200): joint precast member
210: precast body 220: rebar
(300): Futa concrete (400): molding seal
410: spacer 420: cover
(500): expansion joint of bridge structure (510): installation space
(600): Joint part of concrete pavement (610): Damaged part
700: anchor

Claims (9)

A joint construction method of a structure using a connecting member, characterized in that to suppress the cracking of the structure due to thermal expansion and contraction by jointing the structure joint formed by the connection member to reduce the occurrence of cracks. The method of claim 1,
The joint is a joint construction method of the structure using a connecting member, characterized in that the joint or one of the joints or expansion joints selected from the bridge structure, building structure, concrete pavement. The method of claim 2,
The joint is a joint part of the concrete pavement, the joint member when the joint is repaired while repairing the joint, the precast body made of abrasion-resistant concrete, embedded in the precast body and partially exposed downwardly A structure using a connecting member, which is formed between the joint precast member and the joint precast member made of reinforcing bars supporting the precast body and improving adhesiveness when placing concrete by touching the floor. Joint construction method The method of claim 3, wherein
The construction process when the joint construction while repairing the joint joint of the concrete pavement using the joint precast member and the molding seal is,
A damage site cleansing step of cutting the damage site of the joint and removing foreign materials to secure an installation space;
A joint precast member installation step of installing a joint precast member in the installation space so that the precast body is located at the corner of the damaged part and supports the precast body with reinforcing bars;
Futa concrete placing step of placing concrete in the installation space to the joint precast member to be integrated in the joint of the concrete pavement in the installation space;
The joint construction method of the structure using a connecting member, characterized in that it comprises a step of applying a molding seal to apply the adhesive to the joint and install the molding seal. The method of claim 2,
The joint is a joint part of the concrete pavement, the joint member when repairing or installing the joint joint, the construction of the joint part of the structure using the connecting member, characterized in that the molded seal is installed to be fitted to the joint joint. Method. The method of claim 5, wherein
The construction process when the joint construction of the concrete pavement using the molding seal is newly jointed by applying an adhesive to the joint and attaching the molding seal to the joint where the adhesive is applied to the joint Joint construction method of the structure using a connecting member characterized in that the joint construction. The method of claim 2,
The connecting member when the joint is an expansion joint of the bridge structure,
Precast body made of wear-resistant concrete and provided with a plurality of fingers on one side to be installed while overlapping each other, embedded in the precast body and exposed to the bottom inclined downward portion to support the precast body And joint construction method using a connecting member, characterized in that it is a pre-cast member made of reinforcing bars made of reinforcing bar and improves adhesiveness when concrete is cast and formed between the fingers. The method of claim 7, wherein
The construction process of the expansion joint of the bridge structure using the precast member and the molding seal for the expansion joint,
A space securing step of securing an installation space for constructing a precast member for expansion joint on the bridge structure around the expansion joint;
A precast member installation step of installing a expansion joint precast member for supporting the precast body with the fingers of the precast bodies overlapping each other and then applying the primer to the installation space;
Futa concrete placing step of placing concrete in the installation space so that the precast member for expansion joint can be integrated into the bridge structure in the installation space;
Attaching a molding seal between the fingers to connect the expansion joint connecting step; Construction method of the joint portion of the structure using a connection member comprising a. The method of claim 8,
Installing the anchor in the installation space and installing the reinforcing bar to be fixed to the anchor joint construction method of the structure using the connecting member, characterized in that the expansion joint can be more firmly fixed.

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