JP4224067B2 - Reinforcement and reinforcement structure of existing building using this - Google Patents

Description

  The present invention relates to a reinforcing material and a reinforcing structure of an existing building using the same.

As a conventional reinforcing structure of an existing building, for example, there is an invention of JP-A-2004-324262. This is because the truss bar, which is formed by joining one upper bar and two lower bars, with corrugated lattice bars, is fixed to the upper surface of the existing slab with a plate, and concrete is placed to cover this truss bar. An extension is formed.
JP 2004-324262 A JP 2004-324262 A

  However, the invention of the above-mentioned Japanese Patent Application Laid-Open No. 2004-324262 has a problem that the plate is welded to the lower end bar and the entire truss bar is distorted by the heat generated during the welding, so that it cannot be easily installed on a slab or wall. was there.

  This invention is made | formed in view of the above problems, The objective is to provide the reinforcement material which can be easily installed in a slab and a wall, and the reinforcement structure of the existing building using this.

A reinforcing material for solving the above problems is that a mounting plate is formed by embedding the lower bar in the lower bar of the truss bar in which the upper bar and the lower bar are joined by a lattice bar, and the mounting plate is It is characterized by being formed at appropriate intervals along the length direction of the muscle . In addition, the truss muscle includes that one upper muscle and two lower muscles arranged at the top of the triangle are joined by a lattice muscle. In addition, the attachment plate includes one formed over the two bottom bars or one formed for each of the two bottom bars. The mounting plate includes an upper plate and a lower plate, and includes that the upper and lower plates are joined by sandwiching the lower end bars from the upper and lower sides and fixed to the lower end bars .

In addition, the reinforcing structure of the existing building is that the lower end of the truss bar where the upper and lower bars are joined by the lattice bar is embedded in the lower bar, and the mounting plate is the length of the lower bar. Reinforcing material formed at appropriate intervals along the direction is attached to at least one of the slabs or walls of the existing building with a mounting plate, and the slab or the concrete is cast on the walls so as to cover the reinforcing material. It is characterized by being provided. In addition, the truss muscle includes that one upper muscle and two lower muscles arranged at the top of the triangle are joined by a lattice muscle. In addition, the attachment plate includes one formed over the two bottom bars or one formed for each of the two bottom bars. Also includes the mounting plate consists of an upper plate and a lower plate, the upper and lower plates is fixed to the lower end muscles are joined sandwich the lower muscle from above and below. Further, the attachment plate includes being attached with an adhesive or an anchor bolt.

Since the mounting plate is attached with the lower end bar embedded, the distortion of the truss bar can be prevented, so that the mounting plate can be installed on the slab or the wall with an adhesive. Further, since the attachment plate is attached to each of the two lower end bars, even if the truss bars are somewhat distorted, the adjustment can be easily performed at the time of attachment. In addition, since the truss bars can be easily and accurately installed on the upper surface or wall surface of the slab with the mounting plate, it is possible to easily construct a reinforcing structure for an existing building.

  Embodiments of a reinforcing material of the present invention and a reinforcing structure of an existing building (hereinafter referred to as a reinforcing structure) using the same will be described below with reference to the drawings. First, an embodiment of the reinforcing material will be described, and then an embodiment of the reinforcing structure will be described. In the embodiments, the same components are described with the same reference numerals, and only different components are described with different reference numerals. This reinforcing material is installed on a slab or wall that needs reinforcement to reinforce them.

1 and 2 show a reinforcing material 1 according to the first embodiment. This reinforcing member 1 is arranged so as to sandwich a lower end muscle 3 of a truss muscle 5 in which one upper end muscle 2 and two lower end muscles 3 arranged at the top of a triangle are joined by a corrugated lattice 4. The mounting plate 6 is installed. The mounting plate 6 is composed of an upper plate 7 and a lower plate 8 made of concrete, so that these plates 7 and 8 sandwich the lower end stripe 3 from above and below, that is, the lower end stripe 3 is installed in the semicircular installation groove 9. It is inserted and joined together, and is fixed to the lower end muscle 3 . These upper and lower plates 7 and 8 are attached to the lower reinforcement 3 at the factory or at the site. As shown in (2) of FIG. 1, the lower reinforcement 3 is embedded by being integrally joined with an adhesive 10 or a bolt. . Therefore, an arbitrary number can be easily attached to a necessary place or an arbitrary place of the lower end reinforcement 3 without distorting the truss reinforcement 5.

FIG. 3 shows a reinforcing material 11 according to the second embodiment. The reinforcing member 11 is not mounted plate 12 are separated up and down, as shown in (2) in FIG. 3, in which is embedded a lower muscle 3 mounted over the lower end muscle 3 of two as one body Except this, the configuration is the same as that of the reinforcing member 1 of the first embodiment, and the same effect is achieved.

  4 and 5 show a reinforcing member 13 according to the third embodiment. The reinforcing member 13 is not the attachment plate 14 attached over the two lower stripes 3 but is attached to each of the lower stripes 3. Otherwise, the reinforcing member of the first embodiment is used. 1 is the same configuration. This is because the mounting plate 6 of the first embodiment is cut along the length direction at the center, and each is independent, so there was some distortion in the truss bar 5 during mounting. But it can be adjusted easily.

  Moreover, although the mounting plates 6, 12, and 14 in the first to third embodiments are made of concrete, this is not limited to concrete, and may be made of steel and synthetic resin. Further, the truss muscle 5 is one in which one upper muscle 2 and two lower muscles 3 are joined by a corrugated lattice 4, but not limited to this, one upper muscle and one lower muscle. It may be a so-called single truss (not shown) in which the muscle is joined by a corrugated lattice muscle.

  Next, the reinforcing structure 15 using the reinforcing material 1 of the first embodiment will be described with reference to FIG. The truss bar 4 is installed on the upper surface of the existing slab 16 by attaching the attachment plate 6 in the lower bar 3 with the adhesive 10. A slab reinforcing bar 17 is arranged on the upper end bar 2 of the truss bar 4, and an additional concrete 19 is placed in a formwork 18 in which these bars are arranged to constitute a reinforcing structure 15. Therefore, it is not necessary to hook the existing slab 16, and it can be easily installed on the upper surface of the slab 16 without worrying about the distortion of the truss bar 5, and the reinforcing bar 17 is arranged on the upper end bar 2. The reinforcing structure 15 can be easily constructed simply by placing the additional cast concrete 19 in the mold 18.

  Similarly, FIG. 7 shows a reinforcing structure 21 in which the reinforcing material 1 of the first embodiment is installed on the wall surface 20, and the reinforcing structure 15 described above except that the truss bar 5 is changed from the slab 16 to the wall surface 20. It is the same composition as. As described above, not only the slab 16 or the wall surface 20 but also the reinforcing structure 15 in which the reinforcing material 1 is installed on both the slab 16 and the wall surface 20 can be used.

  Moreover, not only the reinforcing material 1 of 1st Embodiment but the reinforcement structure using the reinforcing materials 11 and 13 of 2nd and 3rd Embodiment can also be constructed | assembled. Here, the mounting plates 6, 12, and 14 in the second and third embodiments can be made of steel and synthetic resin, and the truss bar 5 has one upper bar and one lower bar. It is also possible to form a so-called single truss (not shown) in which and are joined by a corrugated lattice. In addition to the adhesive, the mounting plate 6 can be attached to a slab or the like with an anchor bolt.

It is a reinforcing material of a 1st embodiment, (1) is a perspective view, and (2) is a sectional view. It is a top view of the reinforcing material of a 1st embodiment. It is the reinforcing material of 2nd Embodiment, (1) is a perspective view, (2) is sectional drawing. It is the reinforcing material of 3rd Embodiment, (1) is a perspective view, (2) is sectional drawing. It is a top view of the reinforcing material of a 3rd embodiment. It is sectional drawing of the reinforcement structure which installed the reinforcing material in the slab. It is sectional drawing of the reinforcement structure which installed the reinforcing material in the wall surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11, 13 Reinforcement material 2 Upper muscle 3 Lower muscle 4 Lattice muscle 5 Truss muscle 6, 12, 14 Mounting plate 7 Upper plate 8 Lower plate 9 Installation groove 10 Adhesive 15, 21 Reinforcement structure 16 Slab 17 Reinforcement 18 Formwork 19 Reinforced concrete 20 Wall surface

Claims (6)

A mounting plate is formed by embedding the lower bar in the lower bar of the truss bar in which the upper bar and the lower bar are joined by a lattice bar, and the mounting plate is formed at an appropriate interval along the length of the lower bar. Reinforcement characterized by being made.   2. The reinforcing member according to claim 1, wherein the truss bar is formed by joining one upper bar and two lower bars arranged at the top of the triangle with a lattice bar.   The reinforcing material according to claim 2, wherein the attachment plate is formed over two lower end bars or is formed for each of the two lower end bars. Mounting plate consists of an upper plate and a lower plate, according to any one of claims 1 to 3, characterized in that these upper and lower plates is fixed to the lower end muscles are joined sandwich the lower muscle from the upper and lower Reinforcement. The reinforcing material according to any one of claims 1 to 4 is attached to at least one of a slab of an existing building or a wall with a mounting plate, and a slab or a reinforced concrete is placed on the wall so as to cover the reinforcing material. Reinforced structure of an existing building, characterized by being made.   The reinforcing structure for an existing building according to claim 5, wherein the mounting plate is attached with an adhesive or an anchor bolt.

Images