JP3152531U - Building reinforcement structure using piano wire - Google Patents

Abstract

The present invention provides a structure reinforcing structure capable of increasing the strength of structural reinforcing wood made of an accumulation material and other base materials and increasing the connection strength when connecting structural reinforcing wood. A structural reinforcing wood having a through hole 3 drilled along a longitudinal direction in a base material 22 made of a solid material or a laminated material, and a reinforcing steel rod 10 inserted into the through hole, Reinforced steel rod that penetrates the base material of one structural reinforcing wood in a structural reinforcing wood made by connecting wide structural reinforcing wood such as beams and girders and narrow structural reinforcing wood such as columns Is disposed along the center of the base material, and the reinforcing steel rod penetrating the other structural reinforcing wood does not interfere with the reinforcing steel rod of the one structural reinforcing wood to be connected to the other structural reinforcing wood It is characterized by being set at a position shifted to one side from the center of the wood substrate. [Selection] Figure 3

Description

  The present invention relates to a structure reinforcing structure such as a building whose strength is increased by using a reinforcing steel rod made of a piano wire as a base material.

Recently, due to abnormal weather due to atmospheric warming and frequent occurrence of earthquakes due to plate changes due to tidal currents in the sea, there is a possibility that even wooden structures by conventional construction method or 2 × 4 construction method will be damaged or collapse It is growing.
Therefore, a configuration is known in which the strength of the base material is reinforced by combining the base material and the piano wire in order to increase the strength of the structural wood.
For example, in Japanese Patent Application Laid-Open No. 2004-66795, a plurality of horizontal holes penetrating a base material in a short direction are formed at a certain position on a side surface of a substantially square or substantially rectangular base material having a side of 50 mm to 160 mm, and a plurality of bases are provided. The long groove reaching both ends in the longitudinal direction of the side surface to which the material is joined is cut, and when these are joined, the long groove constitutes a through hole in the longitudinal direction, and the lateral hole continuously forms a through hole in the short direction, A configuration in which a binding material such as a bolt, a reinforcing bar, a band, an angle, a pipe, a wire, a piano wire, or a chemical fiber is inserted vertically and horizontally into the through hole is disclosed.
However, in the above configuration, since the binding material is used also for connecting a plurality of base materials, there is a disadvantage that a large number of binding materials in the base material are stretched vertically and horizontally and the structure becomes complicated.
Japanese Patent Laid-Open No. 1-256650 discloses a structure in which a reinforcing wire that connects both ends of the base material is inserted into the base material, and the reinforcing wire is screwed to the base material in a predetermined direction. The structure which provides the tension | tensile_strength of is disclosed.
However, in the said structure, although the intensity | strength for every base material increases, when connecting a base material, a reinforcing wire cannot be used continuously.

Japanese Patent Publication No. 2004-66795 JP-A-1-256650

  This invention was created in view of the above circumstances, and its main problem is to increase the strength of structural reinforcing wood made of accumulated material and other base materials, and also to connect the structural reinforcing wood. An object of the present invention is to provide a building reinforcement structure capable of increasing the strength.

In order to solve the above problem, the device of claim 1
A structure in which a through hole drilled along the longitudinal direction is provided in a base material made of a solid material or a laminated material, and a plurality of structural reinforcing woods in which a reinforcing steel rod made of a piano wire is inserted into the through hole. Reinforced timber, which is a structure reinforced by connecting wide structural reinforced wood such as beams and girders and narrow structural reinforced wood such as columns,
A reinforcing steel bar penetrating the base material of one structural reinforcing wood is arranged along the center of the thickness of the base material, and a reinforcing steel bar penetrating the other structural reinforcing wood is connected to It is characterized in that it is set at a position shifted to one side from the center of the thickness of the base material of the other structural reinforcing wood so as not to interfere with the reinforcing steel rod of the structural reinforcing wood.
In the device of claim 2,
A first cutout recess communicating with the through hole is formed on at least one end surface of one structural reinforcing wood,
A screw is formed at the end of the reinforcing steel rod, protrudes into the first notch recess, and the washer with a spring washer is restrained from rotating in the first notch recess and is fitted into the reinforcing steel rod for reinforcement. The end of the steel bar is tightened with a nut.
In the invention of claim 3,
The end of the through hole is open on the other end face of one structural reinforcing wood,
A communication through hole communicating with the through hole is formed in one end face of the other structural reinforcing wood,
A second notch recess communicating with the communicating through hole is formed on the other end surface of the other structural reinforcing wood,
A screw is formed at the other end of the reinforcing steel bar and protrudes into the second notch recess. The washer with a spring washer is restrained from rotating within the second notch recess and is fitted into the reinforcing steel bar. The end of the reinforcing steel rod is tightened with a nut.
In the device of claim 4,
When the reinforcing steel rod is connected to the structural reinforcing wood arranged in the longitudinal direction at the center of the thickness of the base material by inserting the PC steel rod in the transverse direction intersecting the longitudinal direction of the structural reinforcing wood. Further, a through-hole extending in the short direction is provided so as not to interfere with the reinforcing steel rod from the thickness center of the structural reinforcing wood, and the PC steel rod is inserted therethrough.
Furthermore, in the device of claim 5,
The reinforcing steel rod is arranged along the center of the thickness of the base material. One structural reinforcing wood is made of beams or girders, and is placed at a position shifted from the center of the thickness of the base material of the reinforcing steel rod base to one side. The other structural reinforcing wood is made of a pillar.

The building reinforced structure of this invention can be used in combination with high-strength structural reinforcing wood by passing a reinforcing steel rod made of piano wire through an integrated material or other base material and tightening both ends with nuts .
In addition, when connecting to another structural reinforcing wood, the reinforcing steel rod inserted into one structural reinforcing wood and the reinforcing steel rod inserted into the other structural reinforcing wood do not interfere with each other. Thus, the strength of the structural reinforcing wood and the tightening force between the structural reinforcing woods to be connected can be increased.

It is an earthquake-resistant house structure of Example 1. It is sectional drawing which shows the beam of FIG. 1, (a) is a laminated material, (b) is a laminated material which has a solid material, (c) is a solid material. It is a side view explaining the connection structure of a beam and a column. It is the same top view. It is an earthquake-resistant house structure of Example 2. 5A is a cross-sectional view of a three-layered laminated material, FIG. 5B is a cross-sectional view of a two-layered laminated material, and FIG. 5C illustrates a connection structure of the beam and the vertical frame. It is a partial side view. It is a top view which shows the connection structure of a beam and a vertical frame. It is the earthquake-resistant house structure of Example 3 which used PC steel bar as a collapse prevention tool. (A) is a tightening example of a hyano wire in the connection between a beam and a pipe column, and (b) is a tightening example of a through column. This is another earthquake-resistant house structure using PC steel bar as a collapse prevention tool.

This device forms a through hole along the longitudinal direction in an integrated material or a solid material, penetrates a reinforcing steel rod made of piano wire, and provides a screw at the end of the reinforcing steel rod, and a square washer with a spring washer The strength of the structural reinforcing wood and the tightening force at the time of connection were increased by allowing the nut to be tightened via the nut.
In the following, a preferred embodiment of a building reinforcing structure using structural reinforcing wood using the reinforcing steel bar of the present invention will be described with reference to the drawings.

FIG. 1 shows an earthquake-resistant house structure, and shows a case where structural reinforcing wood is used for a beam 1A, a column 1B, and a girder 1C. In addition, 1D in the figure is a seismic structure plywood using a heat insulating material.
Here, the structural reinforcing wood is composed of a base material 2 made of an accumulation material or a solid material, and a reinforcing steel rod 10.
The piano wire used for the reinforced steel bar 10 is mainly made of high-grade scrap or high-grade pig iron with low harmful impurities, such as P, S, Cu, etc. stipulated in JlS, but has a carbon content of 0.60. A high-quality high carbon steel wire of ˜0.95% is preferred.

[Reinforced steel bar]
The reinforcing steel bar (PC steel material) 10 used in this example is finished by a known processing method in which cold processing such as wire drawing is performed after cooling and heat treatment (patenting) under appropriate conditions using the piano wire. Steel wire is used.
In this embodiment, the reinforcing steel rod 10 has a diameter of 8 mm or 10 mm, and a tensile strength of 250 to 350 kg / mm 2 (JLS standard: G3502 piano wire) is used. The length is 1 m, 2 m, 4 m, 6 m, Standards such as 8m and 12m are used, and the strength is about 25 times that of the reinforcing bars used for general construction.

  Reference numeral 10A denotes a PC steel bar that penetrates and extends up and down at a location that intersects the base material 2, and at least one end, like the reinforcing steel bar 10, is fixed by a washer with a spring washer and a nut, which will be described later. Reference numeral 10B denotes an anchor bolt standing on a base or foundation.

2 and 3 are enlarged views when the structural reinforcing wood is used as the beam 1A.
As shown in FIG. 2A, the base material 2 used for the structural reinforcing wood is a laminated material 2a in which a large number of thin plates are bonded in the lateral direction as shown in FIG. 2A, and a solid material as shown in FIG. 2B. The laminated material 2b which adhered the thin board | plate material 2 to the both ends of a transversal direction, the solid material 2c etc. as shown in FIG.2 (c) may be sufficient.

As shown in FIG. 3, the base material 2 has through holes extending in the vicinity of both sides in the short direction (up and down in the illustrated example) and extending parallel to the base material 2 along the longitudinal direction (horizontal direction in the figure). 3 is formed in a pair of upper and lower sides.
In the case of the illustrated example, the position of the through hole 3 is arranged at the bonding point of each laminated material component piece in the case of the laminated material (see FIG. 2 (a)). It may be arranged at the center of the two laminated lumber component pieces, and is not particularly limited.

A reinforcing steel rod 10 for reinforcement is inserted into each of the pair of through holes 3.
The reinforcing steel bar 10 has screws engraved at least at both ends, and nuts 14 and 15 are screwed together via square washers 12 and 13 with spring washers.
The square washer is used so that the washer does not rotate. However, in the present invention, it may be a non-circular shape such as a polygon other than a circle or an ellipse.

A first notch recess 4 having an opening on the outside is formed on the end surface (right side in the drawing of FIG. 3) of the base material 2 which is one end of the through hole 3.
In the present embodiment, the cross-sectional shape of the first notch recess 4 is a rectangular cross-section so that the square washer 12 with a spring washer is fitted and does not rotate, but it may be a polygonal shape or other non-circular shape. That's fine.

A reinforcing steel rod 10 protrudes from the through hole 3 into the first cutout recess 4 formed at one end of the substrate 2.
The protruding length of the reinforcing steel rod 10 is set to be equal to or less than the depth of the first notch recess 4, and is set so that the end of the reinforcing steel rod 10 does not protrude from the end surface of the substrate 2.

The square washer 12 with a spring washer is accommodated in the first notch recess 4 while being inserted into the reinforcing steel rod 10.
Therefore, a nut 14 is screwed onto the end of the reinforcing steel rod 10 from the outside, and the square washer 12 with a spring washer is fastened to the bottom surface of the first notch recess 4, and one end of the reinforcing steel rod 10 is used as a base. Fix to material 2.
In the present embodiment, the upper and lower sides of the end surface side of the beam 1A to which the reinforcing steel rod 10 is fixed by the nut 14 are sandwiched between the pipe columns 1B ′.

  In the present embodiment, the first notch recess 4 is not formed on the other end face of the substrate 2, the end of the through hole 3 is opened, and the other end of the reinforcing steel rod 10 is based on the base end. It protrudes beyond the end face of the material 2.

In this embodiment, as shown on the left side in FIG. 3, a through column is provided as a column 1B connected orthogonally to the beam 1A, and the through column 3 is aligned with the through hole 3 formed in the beam 1A. A through-hole 23 for communication is formed in the base material 22 at the position where it is located.
A second notch recess 5 having an opening on the outer side is formed on the opposite side of the through-hole 23 for communication that is not in contact with the beam 1A on the end face of the through pillar 1B. The square washer 13 with a spring washer can be fitted.

  Further, the other protruding length of the reinforcing steel rod 10 is set to be equal to or less than the depth of the second notch recess 5, and is set so that the end portion of the reinforcing steel rod 10 does not protrude from the end surface of the through column 1B. ing.

Then, the square washer 13 with a spring washer is accommodated in the second notch recess 5 while being inserted into the other side of the reinforcing steel rod 10.
Therefore, a nut 15 is screwed into the end of the reinforcing steel rod 10 from the outside, and the square washer 13 with a spring washer is fastened to the bottom surface of the second notch recess 5, and the other end of the reinforcing steel rod 10 is passed through the column. 1B and the base material 2 are fastened together, and both are fixed.

Further, a reinforcing steel rod 10 for reinforcement may be incorporated in the tube column 1B ′ or the through column 1B.
A column 1B shown in FIG. 4 is a three-layered laminated column on the left side and a solid material on the right side in the drawing, and shows a structure using a reinforcing steel rod 10.

A PC steel rod 10A for fixing the horizontal member intersects and is inserted through the center of the beam 1C.
Also in this case, the pillar 1B (or 1B ′) is provided with a through hole 3 ′ and a notch recess 4 ′, and the reinforcing steel rod 10 is passed through, and at least one end of the reinforcing steel rod 10 is accommodated in the notch recess 4 ′. It is tightened with a nut 14 'through a square washer 12' with a spring washer.

However, the through-holes 3 'are arranged so as not to interfere with the reinforcing steel rod 10 used for the beam 1A.
In this embodiment, the through-hole 3 and the reinforcing steel rod 10 provided in the beam 1A are arranged in the center in the thickness direction, while the through-hole 3 ′ and the reinforcing steel rod 10 ′ provided in the columns 1B and 1B ′ are It is arranged at a position shifted from the center in the thickness direction to one side.

  Thereby, as shown in FIG. 4, even if the beam 1A and the column 1B are connected, the reinforcing steel bars 10, 10 'arranged in the vertical direction and the horizontal direction do not interfere with each other.

FIG. 5 shows an earthquake-resistant house structure of Example 2, and shows a case where structural reinforcing wood is used for the beam 1A.
As shown in FIG. 6A, the base material 2 of the beam 1A is composed of a laminated material 2a ′ in which thin plates (gathered material constituting pieces) are vertically bonded and bonded to three layers, and the through hole 3 is a central laminated material structure. A pair is arranged vertically at the center of the piece.
Moreover, the base material 2 of the beam 1A shown in FIG. 6 (b) is composed of a laminated material 2a ′ in which thin plates (gathered material constituting pieces) are vertically bonded and bonded in two layers, and the through hole 3 is a laminated material constituting piece. It has a configuration in which a pair is vertically arranged between them.

Further, one end of the through hole 3 is open to the end surface of the base material 2 (see FIG. 6C), and is formed on the beam 1A on the frame piece 1B ″ disposed on the outside thereof. A communication through hole 23 ′ is formed at a position aligned with the through hole 3.
A first notch recess 4 ′ having an opening on the outside is formed on the opposite side of the end face of the frame piece 1B ″ of the communication through hole 23 ′ that does not contact the beam 1A. The square washer 12 with a spring washer fitted into the first cutout recess 4 'is rectangular or non-circular as in the first embodiment, and the nut 14 is connected to one end of the beam 1A. The frame piece 1B "is tightened.

Further, as shown in FIG. 7, the other end of the beam 1A is connected to a columnar vertical frame 1B made of two layers of laminated material.
That is, the end portion of the through hole 3 is opened at the other end surface of the beam 1A, and the second notch recess 5 ′ whose outside is opened on the opposite side of the end surface of the vertical frame 1B that is not in contact with the beam 1A. The cross-sectional shape of the second notch recess 5 ′ and the square washer 13 with a spring washer fitted into the second notch recess 5 ′ are rectangular or non-circular as in the first embodiment. The other end of the beam 1A and the vertical frame 1B are tightened by the nut 15.
Since other configurations are the same as those in the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

FIG. 8 shows an earthquake-resistant house structure of Example 3, and shows a case of a one-story house using structural reinforcing wood for the beam 1A (or girder 1C) and a PC steel bar 10A as a collapse prevention tool for the house.
In the case shown in FIG. 9A, the beam 1 </ b> A (or the girder 1 </ b> C) has the first notch recess 4 and the second notch recess 5 formed on the left and right end surfaces of the base material 2, and Both ends of the inserted reinforcing steel rod 10 protrude from the first cutout recess 4 and the second cutout recess 5 and are tightened with nuts 14 and 15 via square washers 12 and 13 with spring washers.

The both ends of the beam 1A are sandwiched between the top and bottom of the column 1B ′.
Further, in the case shown in FIG. 9 (b), the left side in the drawing is a through column 1B and is connected to the beam 1A in the same manner as in FIG. 3 of the first embodiment, and the second notch recess 5 is on the through column 1B side. It is formed.
Other configurations are the same as those in FIG.

In FIG. 8, the PC steel rod 10A is passed through the beam 1A and the beam 1C.
In this case, the PC steel rod 10A is connected to the anchor bolt 10B via the connection high nut 30 on the coaxial line, and the PC steel rods 10A are connected to the coaxial line by the turnbuckle 35.
Further, the upper and lower PC steel bars 10A are connected to the beam 1A (or the girder 1C) through the connection high nut 30.

Further, a notch recess 34 communicating with the upper end of the through hole 33 is formed on the upper surface of the base material 32 of the beam 1A (or girder 1C), and the upper end of the PC steel rod 10A is passed through the square washer 12 with a spring washer. Tightened with a nut 14.
The said structure is the same as that of the fixation structure of the reinforcing steel rod 10 in the said Example.
Alternatively, by using the connection high nut 30 ′ instead of the nut 14, the PC steel rod 10A can be further connected on the coaxial line.

In the case of a two-story structure in which the beam 1A has two stages, the earthquake-resistant house structure shown in FIG. 10 uses a connection high nut 30, 30 ′ or a turnbuckle 35 as in FIG. An example in which the steel rod 10A is connected to the uppermost beam 1A and the roof is shown.
Other configurations are the same as those in FIG.
Of course, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the present invention.

1A Beam 1B Column (through column)
1C Girder 1D Seismic structure plywood 2 Base material 3 Through hole 4 First notch recess 5 Second notch recess 10 Reinforced steel bar 10A PC steel bar 10B Anchor bolt 12, 13 Square washer with spring washer 14, 15 Nut 22 Base 23 Through hole 30 Connection high nut 33 Through hole 35 Turnbuckle

Claims (5)

A structure strengthening structure using a structural reinforcing wood in which a through hole drilled in the longitudinal direction is provided in a base material made of solid wood or laminated wood, and a reinforcing steel rod made of piano wire is inserted into the through hole. In
A pair of structural reinforcing timbers connected in a crossing manner, a reinforcing steel rod penetrating the base material of one structural reinforcing wood is arranged along the center of the thickness of the base material, and the other structural reinforcing wood is The reinforcing steel bar to be inserted is set at a position shifted to one side from the center of the thickness of the base material of the other structural reinforcing wood so as not to interfere with the reinforcing steel bar of one structural reinforcing wood to be connected. A structure strengthening structure characterized by that. A first cutout recess communicating with the through hole is formed on at least one end surface of one structural reinforcing wood,
A screw is formed at the end of the reinforcing steel rod, protrudes into the first notch recess, and the washer with a spring washer is restrained from rotating in the first notch recess and is fitted into the reinforcing steel rod for reinforcement. The building reinforcing structure according to claim 1, wherein an end of the steel bar is tightened with a nut. The end of the through hole is open on the other end face of one structural reinforcing wood,
A communication through hole communicating with the through hole is formed in one end surface of the other structural reinforcing wood,
A second notch recess communicating with the communicating through hole is formed on the other end surface of the other structural reinforcing wood,
A screw is formed at the other end of the reinforcing steel bar and protrudes into the second notch recess, and the washer with a spring washer is restrained from rotating within the second notch recess and is fitted into the reinforcing steel bar. The structure reinforcing structure according to claim 2, wherein an end of the reinforcing steel bar is tightened with a nut.   When a PC steel rod is inserted into a structural reinforcing wood in which the reinforcing steel rod is arranged in the longitudinal direction in the center of the thickness of the base material in a short direction intersecting with the longitudinal direction of the structural reinforcing wood, and connected. A through-hole extending in the short direction is provided so as not to interfere with the reinforcing steel rod from the thickness center of the structural reinforcing wood, and the PC steel rod is inserted therethrough. The building reinforced structure described in 1.   The reinforcing steel bar is placed along the longitudinal direction at the center of the thickness of the base material. One structural reinforcing wood consists of beams or girders, and the position deviates from the center of the thickness of the base material of the reinforcing steel bar base to one side. The other structural reinforcing wood arranged in the column consists of pillars

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