JP2006077555A - Connection transom type earthquake resistant truss device for wooden building and seismic strengthening method using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection transom type earthquake resistant truss device for a wooden building; which improves the seismic strength of a Kyoto-style tenement house in a direction of the frontage and the seismic strength of a detached house in a direction of having a smaller number of walls, by connecting two adjacent columns using a transom part of the building; and which is useful as the means for preventing the disaster caused by the earthquake. <P>SOLUTION: An angle truss 4 is formed by providing a truss 3 inside an angle frame 2 which is long crosswise. A vertical linear projection abutting the column is formed on the surface of each of both sides, being in contact with the column, of the angle frame 2 of the angle truss 4. A space pipe 6 having the same length as the thickness of a wall A, on which the end part of the angle truss 4 is positioned, is inserted into the wall A. The ends of the angle trusses 4 positioned on both sides of the wall A are connected, by the intermediary of the wall A, with a bolt 7 going through the space pipe 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden frame connected ramma type seismic truss device that is reinforced to improve seismic resistance in a wooden building such as a Kyoto style house or a detached house, and a seismic reinforcing method using the same.

  For example, Kyofu Nagaya is characterized by a narrow frontage and long depth, and there is a custom of preserving the traditional style without attaching seismic hardware on the front side.

  This type of Kyofu Nagaya structure has walls in the depth direction with neighbors, and it is thought that the depth direction bracing is sufficient, but there are very few walls in the frontage direction, and the wall of the closet is bracing. It becomes.

  Conventionally, the seismic reinforcement for the existing Kyoto style Nagaya has not been done at all. Therefore, although the Kyoto style Nagaya is strong in the depth direction, it is strong against the shaking in the frontage direction. There is a problem that it is weak in strength, and as a means to prevent disasters caused by earthquakes, it is urgent to propose a new seismic reinforcement structure.

  Also, in detached houses, there are directions with many walls and few directions due to the layout arrangement, and of course, the seismic strength in the direction with few walls is low.

  Therefore, the problem of this invention is to improve the seismic strength in the direction of the frontage of Kyofu Nagaya and the direction of the wall of the detached house by combining the pillars on both sides using the ramma part of the building, It is an object of the present invention to provide a timber frame seismic truss device that is useful for preventing disasters caused by earthquakes.

  In order to solve the above-described problems, the invention of claim 1 is characterized in that an angle truss is provided between walls facing each other by providing a truss in a horizontally long angle frame, and both sides of the angle frame in this angle truss. A vertical ridge that contacts the column is provided on the surface that contacts the column at the end, and a spacing pipe having a length equal to the thickness of this wall is inserted into the wall that positions the end of the angle truss on both sides, and the wall is sandwiched In this configuration, the ends of the angle trusses located on both sides are coupled through a wall with bolts that pass through the interval pipe.

  According to the invention of claim 2, an angle truss is provided between walls facing each other by providing a truss in a horizontally long angle frame, and a column is formed on a surface in contact with the column at both side ends of the angle frame in the angle truss. Insert the interval pipe with the length equal to the wall thickness into the wall where the end of the angle truss is located on both sides, and the end of the angle truss located on both sides across the wall Are connected through a wall with bolts that pass through the spacing pipe, angle trusses are arranged on both sides of the wall parallel to this angle truss, and the angle trusses on both sides are connected with bolts that pass through the connecting pipe that penetrates this wall. A configuration in which coupling is made is adopted.

  Invention of Claim 3 employ | adopted the structure which fixed the edge part of the angle frame in the said angle truss to the pillar with the screw screwed into the pillar through the triangular washer in the invention of Claim 1 or 2 It is.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a configuration is adopted in which the lower ends of both ends of the angle truss are fixed to the wall with a triangular truss.

  The invention according to claim 5 is an angle truss in which a truss is provided in a horizontally long angle frame, a vertical protrusion that abuts on the column is provided on a surface in contact with the column at both ends of the angle frame, and an angle truss on both sides. A spacing pipe having a length equal to the thickness of the wall in which the end of the wall is positioned, and first, the angle truss is disposed between the walls facing each other, and the vertical ridge is brought into contact with the column, and then the wall A configuration is adopted in which the ends of the angle trusses located on both sides of the wall are coupled via a wall with bolts that are passed through a spacing pipe previously inserted into the wall.

  Here, the angle frame of the angle truss is made of an angle material and is formed into a horizontally long frame that just fits in the space between the facing walls. On one or both sides of this angle frame, a plate is stretched to be painted or decorated. Can do.

  Also, when the vertical ridges are arranged between the walls facing the angle truss, the vertical ridges of the angle trusses on both sides sandwich the columns from both sides by abutting the outer surfaces of the columns and joining the angle trusses on both sides As a result, the pillars on both sides are joined via the angle truss.

  According to the present invention, it is possible to join the pillars on both sides by using the luma part of the wooden building, greatly increasing the seismic strength of the frontage direction like a Kyoto style tenement and the direction of few walls of a detached house. It can be improved and is extremely useful as seismic reinforcement for existing wooden buildings.

  In addition, a spacing pipe having a length equal to the thickness of this wall is inserted into the wall where the ends of the angle truss are positioned on both sides, and the ends of the angle truss positioned on both sides of the wall are passed through the spacing pipe. Since the bolts are connected through the wall, when connecting the ends of the angle truss, the clamping force can be supported by the spacing pipe, and the wall is not damaged. This can be done simply by making a hole in the wall, and construction can be done easily and easily.

  In addition, since the vertical ridges are provided at the end of the angle truss, when the angle trusses are arranged between the walls facing each other, the vertical ridges abut against the outer surface of the column, and the angle trusses on both sides are joined. The vertical protrusions sandwich the pillars from both sides, and by connecting the pillars on both sides via the angle truss, the earthquake resistance of the building can be reliably improved.

  In addition, the end of the angle frame of the angle truss is fixed to the column with a screw screwed into the column via a triangular washer, so the fixing strength of the angle truss to the column is improved and the seismic strength is further improved. be able to.

  Furthermore, since the lower ends of both ends of the angle truss are fixed to the pillars by the triangular truss, the joint strength of both side pillars can be improved by the angle truss and the triangular truss.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in the figure, the connecting ramma type seismic truss device 1 uses angle materials and uses round steel or the like in the angle frame 2 assembled by welding to a horizontally long frame that fits in the space between the facing walls A and A. The truss 3 is provided to form the angle truss 4, and the vertical truss members at both ends of the angle frame 2 of the angle truss 4 are provided with bolt holes on the top and bottom of the surface in contact with the wall A, and the column B As shown in FIG. 2B, the vertical protrusion 5 that contacts the column B is provided on the back surface that contacts the column B.

  A spacing pipe 6 having a length equal to the thickness of the wall A is inserted into the upper portion of the wall A where the end portion of the angle truss 4 is positioned at a position corresponding to the bolt hole. The end portion of the angle truss 4 located at the position is connected through a wall A with a bolt 7 passed through a spacing pipe 6.

  Further, the end of the angle frame 2 in the angle truss 4 is fixed to the column A with a screw 9 screwed into the column A via a triangular washer 8 as shown in FIG.

  FIG. 2 shows an example in which the angle trusses 4 are arranged on both sides of the ramp wall a. The angle trusses 4 positioned on both sides of the ramp wall a pass through the connection pipe 10 through the ramp wall a. The plurality of portions of the angle frames 2 on both sides are coupled to each other with the passed bolts 11.

  Further, the lower ends of the angle truss 4 disposed between the walls A and A are supported by a triangular truss 12 fixed to the wall A. In the case of FIG. 1, the triangular truss 12 has a short vertical length, but a long truss that reaches the bottom of the wall A may be used to increase the fixing strength.

  The triangular truss 12 and the angle truss 4 are coupled with a bolt, and the both sides triangular truss 12 is fixed to the wall A in the same manner as the angle truss 4 is fixed to the wall A by inserting a spacing pipe 6 into the wall A. This is done by tightening the bolt 7 passed through 6.

  Although not shown in the figure, a thin veneer or the like is stretched on one or both sides of the angle truss 4, and a paint or wallpaper is applied to the plate to provide a decorative property that meets the needs of residents. You can make it.

  The connected ramma type seismic truss device 1 according to the present invention is configured as described above, and in order to provide seismic reinforcement to a wooden building, an angle truss 4 having a length corresponding to the interval between the walls A and A facing both sides is provided. Prepared, a through hole is drilled at a position corresponding to the bolt hole of the angle frame 2 at the upper part of the walls A and A, and the interval pipe 6 is inserted.

  When the rear ends of both ends of the angle truss 4 positioned between the walls A and A on both sides are brought into contact with the pillar B, the vertical ridge 5 comes into contact with the outer surface of the pillar B, and thus the wall A By placing angle trusses 4 on both sides, in this state, bolts 7 are inserted from the bolt holes of one angle frame 2 into the spacing pipe 6 and the bolt holes of the other angle frame 2, and nuts are screwed onto the bolts 7 and tightened. The angle truss 4 is fixed between the walls A and A on both sides.

  The angle trusses on both sides of the wall are combined and integrated, and the pillars are sandwiched from both sides by the vertical ridges provided at the end of the angle truss. By connecting the columns on both sides via the angle truss, The building's earthquake resistance can be improved reliably.

  When the angle truss 4 is fixed between the walls A and A in this way, the end of the angle frame 2 of the angle truss 4 is fixed to the column B with the screw 9 screwed into the column B via the triangular washer 8. The strength of fixing the angle truss 4 to the column B is improved.

  If necessary, as shown in FIG. 2 (a), angle trusses 4 may be arranged on both sides of the ramp wall a to further increase the seismic strength.

  In addition, if the triangular truss 12 coupled to the lower ends of the angle truss 4 is fixed to the wall A, the seismic reinforcement is completed. For example, in Kyoto style Nagaya, the ramp wall on the inside, inside, and back of the front entrance If the angle truss 4 is disposed along a, the frontage direction of the entire building is integrally coupled with the adjacent house, and the seismic strength of the entire tenement can be improved.

Longitudinal front view showing a construction state of a connected ramma type seismic truss device for a wooden building according to the present invention (A) is a cross-sectional plan view showing the construction state in which the connected ramma type seismic truss devices of wooden construction are arranged on both sides of the ramma wall, (b) is a perspective view showing the vertical ridge provided on the back of the angle truss. Cross-sectional plan view of the split section where the end of the angle truss is fixed to the column with a screw

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connection rammer type seismic truss apparatus 2 Angle frame 3 Truss 4 Angle truss 5 Vertical protrusion 6 Space pipe 7 Bolt 8 Triangle washer 9 Screw 10 Connection pipe 11 Bolt 12 Triangle truss

Claims (5)

  An angle truss is arranged between the walls facing each other by providing a truss in the horizontally long angle frame, and the vertical ridge that contacts the column is formed on the surface of the angle truss that contacts the column at both ends of the angle frame. Insert a spacing pipe having a length equal to the wall thickness into the wall where the end of the angle truss is positioned on both sides, and pass the end of the angle truss located on both sides of the wall through the spacing pipe. Ranma type seismic truss device for wooden construction that is connected via a wall with bolts.   An angle truss is arranged between the walls facing each other by providing a truss in the horizontally long angle frame, and the vertical ridge that contacts the column is formed on the surface of the angle truss that contacts the column at both ends of the angle frame. Insert a spacing pipe having a length equal to the wall thickness into the wall where the end of the angle truss is positioned on both sides, and pass the end of the angle truss located on both sides of the wall through the spacing pipe. A wooden structure where bolts are connected via walls, angle trusses are placed on both sides of the wall parallel to the angle truss, and the angle trusses on both sides are connected with bolts that pass through a connecting pipe that passes through the wall. Ranma type seismic truss device.   3. The connected Ranma type seismic truss device for wooden buildings according to claim 1 or 2, wherein an end portion of the angle frame in the angle truss is fixed to the column with a screw screwed into the column via a triangular washer.   4. A connected ramma type seismic truss device for a wooden building according to any one of claims 1 to 3, wherein both ends of the angle truss are fixed to a wall with a triangular truss.     An angle truss provided with trusses in a horizontally long angle frame, and vertical ridges that contact the pillars on the surfaces that contact the pillars at both ends of the angle frame, and a wall that positions the ends of the angle truss on both sides First, the angle truss is arranged between the walls facing each other and the vertical ridges are brought into contact with the pillars, and then positioned on both sides of the wall. A seismic retrofitting method using a jointed ramma type seismic truss device of wooden construction in which the ends of angle trusses are connected via walls with bolts that have been passed through spacing pipes that have been inserted into the walls in advance.

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