KR20040067770A - Rigid resin stiffener of building structure - Google Patents

Abstract

PURPOSE: A rigid resin stiffener of a building structure is provided to heighten impact strength, bending strength, and tensile strength. CONSTITUTION: The rigid resin stiffener of a building structure comprises the steps of: forming a stiffener by arranging wires(5,5') which are formed by twisting many steel wires or arranging the vertical wire(5) and the horizontal wire(5') to one way on a stiffener for a gusset plate, a form, a mold, etc.; and binding up stiffeners(1) by an H-connector provided with right and left retentive plates.

Description

Rigid resin reinforcement for building structures

The present invention is a reinforcing material for repair and reinforcement of formwork, reinforcement, form, etc. of various building structures, and in particular, a building structure suitable for use as a form or reinforcement plate requiring the stiffness of tensile load, tensile strength, bending strength, and the like. Of stiffeners

Conventionally, there are a number of inventions and inventions that have been filed by applicants, etc., and pre-registered. These include interpolating a mesh (metal mesh) into one or two layers inside the FRP resin layer. Compared to the strength, tensile load, tensile strength and bending strength were low.

That is, in the above-described conventional configuration, when used as a formwork, a reinforcement, etc., the load is severely applied, or when the load is severely received by filling cement mortar for concrete, in the case of an FRP formwork, an FRP reinforcement, or an FRP formwork interpolated with a metal mesh. The problem is that sometimes a broken (cutting, breaking, breaking) fault can occur.

FRP formwork, reinforcement plate, formwork, and reinforcement that interpolates metal mesh boards compared to FRP formwork, FRP reinforcement plate, formwork, and reinforcement are excellent in tensile strength as well as tensile load and bending load. When used as a stiffener such as formwork, reinforcement mold, reinforcement plate, composite mold, etc. that are subjected to severe loads, the metal mesh board is interpolated with core material to cope with the pressure load caused by the continuous filling of cement mortar and the tensile force to expand by hydraulic pressure. The necessity of core material, which is stiffness superior to tensile strength, has emerged.

The present invention requires an alternative material having superior tensile load, bending load, and tensile strength than the metal core core interpolated into such a conventional FRP formwork, reinforcement plate, and formwork. Although the impact strength, bending strength, and tensile strength are superior to those of composite molds and reinforcement materials, various types of materials can be used for a long time in order to obtain a better core material in which pressure load, tensile strength, bending strength, etc., due to the filling of cement mortar are more than double. As a result of repeated experiments and studies to achieve the desired purpose is described in detail by the accompanying drawings as follows.

1 is a perspective view of the state extracted by cutting the reinforcement of the present invention

Figure 2 is a cross-sectional view of the reinforcement of the present invention by cutting

Figure 3 is a perspective view of a state configured by wiring the reinforcing material of the present invention only with a wire core wire

4 is an exemplary cross-sectional view of the reinforcing member of the present invention interpolated longitudinally and horizontally using only a wire core wire;

5 is an exemplary cross-sectional view of the reinforcing member of the present invention in a state in which wire cores and braids (slanting) are interpolated longitudinally and horizontally;

6 is an exemplary cross-sectional view of a state in which a connection surface for vertically coupling the reinforcing member of the present invention is constituted by a stepped connection portion.

Figure 7 is a plan view of the state using the formwork, reinforcement plate, form reinforcement for connecting the reinforcement of the present invention by connecting the "H" connector.

In forming the metal mesh core material in the normal reinforcement board, formwork, mold, reinforcement material which consisted of FRP,

Wire wires 5, 5 'formed by twisting a plurality of steel wires inside a reinforcement material such as a composite resin reinforcement plate, a formwork, and a composite frame, such as FRP, are interpolated with a core material, or a longitudinal wire wire 5 or a transverse wire ( In one direction of the 5 '), the reinforcement 1 is formed by wiring and interpolation in the other direction so that the eccentric 6 is overlapped in a + shape to form a reinforcement 1, and the connection between the reinforcement 1 and the cross section of the reinforcement 1 is Step-adhesive or left and right support plate 11, 12 is characterized in that the connection to the connection portion by the H connector 8 integrally.

The operation of the present invention thus described is as follows.

First, when tensile strength is required only in one direction in the longitudinal or transverse direction, the core wire is composed of only one side of the longitudinal wire 5 or the transverse wire 5 ', and the wire core 5 may be interpolated only in one direction. Tensile load, tensile strength, and bending strength are much better than reinforcements composed of metal mesh cores.If strong tensile loads, tensile strength, and bending strength are required, When the wires are interlaced alternately to be + -shaped and interpolated into the mesh, the tensile strength has a tensile load, tensile strength, and bending strength comparable to that of metal stiffeners or metal molds.

However, in the case of interpolation by wiring using only wire cores (5) (5 '), tensile load, bending strength, and tensile strength are strong, but there may be a problem that impact strength and elasticity, rigidity, refractive strength, etc. are somewhat reduced. In order to wire the lanyard 6 of the lanyard, such as a spring, to overlap the core line in a + -shape with the longitudinal wire core 5 or the transverse wire core 5 'in one direction, the elasticity (elasticity) of the lanyard 6 is increased. 7) is considerably strong, so, for example, when it is necessary to construct a curved or semicircular reinforcement member 1 as shown in FIG. 7, elasticity can sufficiently cope with impact strength, rigidity and refractive strength.

Here, wire wires and metal meshes are called wire, wire rope, wire netting, etc. in English, but metal wires, mesh plates, and gold wires are generally referred to as wire wires. It is composed of reticular wires. In the present invention, wire and wire rope are formed by twisting thin wires into multiple strands.

6 shows that when connecting the reinforcing material 1 and the reinforcing material 1 and connecting the connection surfaces of both end faces with a stepped-type connecting part 7 and adhering, the structure, form, formwork, etc. The advantage is that the connection can be quickly connected and glued,

FIG. 7 is a cross section connecting the reinforcing material 1 and the reinforcing material 1 to the left and right support plates 11 and 12 to insert the H connector 8 integrally configured to support the inside and the outside to bond the connecting portion 9. When bonding, epoxy resin is generally excellent among synthetic resins.

Here, the H connector 8 has already been proposed in the composite frame for tunnel reinforcement, in particular, it can be said to be particularly ideal as a reinforcement connector for constructing underwater structures, and the carbon fiber layer or aramid fiber layer 10 of FIG. 7 is connected to the H connector 8. As it is applied for protection reinforcement after adhesion, it is resistant to water leakage, leakage and frictional impact by applying to either inside or outside surface.

In addition, five experiments were conducted under the same conditions for the tensile strength test of the reinforcement composed of FRP reinforcement and the metal mesh core interpolated with 1 and 2 mesh cores and the interpolation of the wire core 5 (5 '). The results were very good as follows.

Experimental example below

Tensile load: Tensile breaking load measurement by loading the tensile tensile load at 10mm / min

Bending measurement: Bending load measurement by loading vertical compressive load to the sample at 10mm / min speed

※ It is proved that the wire core material is composed of FRP reinforcement material.

The above example is a test result of the Industrial Technology Testing Institute.

Thus, the present invention has proved to be superior in tensile load, tensile strength, bending strength, etc., compared to the conventional FRP resin reinforcement, which is composed of a core with 1 and 2 wires inserted into a metal core and reinforced with metal wire or wire core wire. In all cases, the cross-sectional diameter size is more than twice as long as the experimental results under the same conditions.

Claims (3)

In forming the metal core material in the reinforcement materials, such as a normal reinforcement plate, a formwork, a mold, etc. which consist of FRP, Wire wires 5, 5 'formed by twisting a plurality of steel wires in reinforcement plates, formwork, molds, etc. of synthetic resin materials such as FRP are interpolated with cores, or longitudinal wires 5 and transverse wires 5' Rigid resin reinforcement of a building structure, characterized in that the wiring configuration in only one direction The construction according to claim 1, wherein the longitudinal wire wire 5 or the transverse wire wire 5 'is used to wire and interpolate the wires in the longitudinal and transverse one directions and the braids 6 alternately + -shaped. Rigid resin reinforcement of structures. The connector of a rigid resin reinforcing member according to claim 1, wherein the cross section of the rigid reinforcing member 1 and the reinforcing member 1 is composed of a stepped → connecting portion 7 and bonded or the connection of the H connecting member 8 is made to bond. .