JP2954582B1 - Installation method of plate material to existing members - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To temporarily fix a plate material to an existing member is not only complicated, but also to remove it after installing the plate material to the existing member. SOLUTION: A surface fastener of an appropriate size is bonded to an existing member and an opposing surface of a plate material to be attached to the existing member at an appropriate interval such that a pair of convex side and concave side face each other, and a surface of the surface fastener. After applying the adhesive to the
Attach a plate to the existing member using the hook-and-loop fastener,
An injection material is injected between the existing member and the plate member to bond or adhere the existing member and the plate member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a plate on an existing member such as a concrete structure for repairing, reinforcing and protecting the surface of the member.

[0002]

2. Description of the Related Art Existing members such as concrete structures, for example, water and sewage concrete structures, are eroded and deteriorated by hydrogen sulfide, and bridge concrete structures are deteriorated by being exposed to wind and rain, resulting in damage.

As one method of repairing, reinforcing, and protecting the surface of these existing members, there is a method in which a plate material such as a steel plate is adhered to the surface thereof and installed.

A general method of installing a plate material on an existing member is as follows: as shown in FIGS. 5 and 6, a plate material 2 is juxtaposed at a predetermined interval from the existing member 1, and the plate material 2 is attached to the existing member 1. After temporarily fixing using the holding pipe 11, or temporarily fixing using the anchor bolt 12, the holding angle 13, and the bolt 14, the existing member 1 and the plate material are inserted through an appropriately formed injection hole or an installed injection pipe. The injection material 3 is injected between the two.

In these methods, the temporary fixing of the plate member 2 to the existing member 1 using the temporary fixing members such as the holding pipe 11, the anchor bolt 12, the holding angle 13, etc. is performed by using an injection material between the existing member 1 and the plate member 2. This is because, when 3 is injected, the plate 2 is pressed from the outside so that the plate 2 can withstand the injection pressure.

[0006]

However, such a temporary fixing method is not only complicated in the number of steps of the construction work, but also complicated, and also requires a temporary fixing after the injection material is injected between the existing member and the plate material. There remains the delicate need to remove the timber.

[0007]

SUMMARY OF THE INVENTION The present invention solves such a problem by providing a surface fastener having an appropriate size at an appropriate interval on a facing surface of an existing member and a plate material to be attached to the existing member, and a pair of convex and concave sides respectively. After applying an adhesive to the surface fastener surface while bonding so that they face each other, a plate material is attached to the existing member using the surface fastener, an injection material is injected between the existing member and the plate material, and the existing member and The problem is solved by providing a method of installing a plate material on an existing member, which is characterized in that the plate material is adhered or adhered to the plate material.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a schematic sectional view showing a state in which a plate material such as a steel plate is installed on an existing member of a concrete structure such as a pier,
FIG. 2 is a schematic cross-sectional view showing a state in which the convex side and the concave side of the surface fastener of the existing member and the plate member are separately bonded, respectively. FIG. 3 is a schematic cross-sectional view showing a state in which the plate member is attached to the existing member.
FIG. 4 is a schematic cross-sectional view showing a state in which the injection material is injected between the existing member and the plate material.

First, as shown in FIG. 2, an existing member 1, for example, a pier, which is a concrete structure, and a plate 2 made of a steel plate are respectively opposed to each other on all sides at appropriate intervals at appropriate intervals, for example, from 10 cm to 10 cm. The hook-and-loop fasteners 4 of about 5 cm square are adhered with the adhesive 5 at intervals of 50 cm such that the pair of the convex side 4 a and the concave side 4 b face each other. The hook-and-loop fastener 4 bonded to the existing member 1 and the plate 2 has a convex side 4a.
Or the concave side 4b.

An adhesive 6 is applied to the concave side 4b of the hook-and-loop fastener 4 bonded to the plate material 2 also on the surface thereof. Of course, the adhesive may be applied to the convex side 4a or both.

Next, as shown in FIG. 3, the existing member 1 is provided with the plate member 2 and the convex side 4a and the concave side 4b of the pair of hook-and-loop fasteners 4.
And the plate member 2 is attached to the existing member 1 with the hook-and-loop fastener 4.
Is attached via the adhesive 6 applied to the concave side 4b. Since the attachment is performed using the surface fastener 4, the convex side 4a and the concave side 4b of the surface fastener 4 may be out of alignment. The attachment of the plate material 2 to the existing member 1 by the adhesive 6 corresponds to the above-described temporary fixing of the related art.

After the plate member 2 is attached to the existing member 1, as shown in FIG. 4, an injection pipe 16 is attached to an injection hole 15 previously formed in the plate member 2 by using a known method. An injection material 3 is injected between the existing member 1 and the plate material 2. Reference numeral 17 denotes an existing member 1 when the injection material 3 is injected.
Air bleeding pipe for the air staying between
8 is an end sealing material. When the injection material 3 has adhesiveness, the existing member 1 and the plate material 2 adhere to each other. When the injection material 3 has no adhesiveness, the existing member 1 and the plate material 2 adhere to each other.

At this time, the plate member 2 is self-supported by the hook-and-loop fastener 4, and the adhesive 6 applied to the concave side 4b of the hook-and-loop fastener 4 is hardened as time passes, so that the fastening degree of the hook-and-loop fastener 4 is strengthened. Therefore, when the injection material is injected into the gap between the existing member 1 and the plate material 2, the plate material 2 can sufficiently withstand the injection pressure.

Thus, the plate member 2 is installed on the existing member 1 as shown in FIG.

[0016]

Since the present invention has been made as described above,
It has the following effects.

Since the attachment of the plate material to the existing member is performed by using a hook-and-loop fastener, there is no problem with a slight displacement, and a sufficient temporary fixing effect is obtained. In addition, the temporary fastening effect of the hook-and-loop fastener eliminates the need for temporary fastening using holding pipes, anchor bolts, and holding angles as in the past, so the work of removing the temporary fastening material after installing the plate material on the existing member is not necessary. do not need.

Since the attachment of the plate to the existing member is performed by using a surface fastener, the surface fastener plays the role of a spacer, and there is no need to interpose a spacer between the plate and the existing member as in the related art.

The adhesive is applied to the surface of the hook-and-loop fastener, the convex side and the concave side are adhered to each other, and the plate is attached to the existing member. Strengthen. Therefore, when the injection material is injected into the gap between the existing member and the plate material, the plate material can sufficiently withstand the injection pressure without using the holding pipe, the anchor bolt, and the holding angle.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing a state where a plate member is installed on an existing member.

FIG. 2 is a schematic cross-sectional view showing a state in which a convex side and a concave side of a surface fastener are separately bonded to an existing member and a plate material, respectively.

FIG. 3 is a schematic cross-sectional view showing a state where a plate member is attached to an existing member.

FIG. 4 is a schematic cross-sectional view showing a state where an injection material is injected between an existing member and a plate material.

FIG. 5 is a schematic sectional view of a conventional example.

FIG. 6 is a schematic sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Existing member 2 Plate material 3 Injection material 4 Surface fastener 4a Convex side of surface fastener 4b Concave side of surface fastener 5 Adhesive 6 Adhesive 15 Injection 16 Injection pipe 17 Air release pipe 18 Sealing material

Claims (1)

(57) [Claims] 1. A surface fastener having an appropriate size and an appropriate dimension is bonded to an opposing surface of an existing member and a plate material to be attached to the existing member so that a pair of convex and concave sides face each other. After applying an adhesive to the existing member, the plate member is attached to the existing member using the surface fastener, and an injection material is injected between the existing member and the plate member to adhere or adhere the existing member and the plate member. How to install the plate on the member.