JPS6364574B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a joint between an architectural column and a foundation.

(Conventional technology and its problems) A: ``Ashigatari Shihosho (wooden architecture)'' This is a shiguchi method in which four floor beams are framed from the front, back, left, and right on one pillar on the foundation, using traditional techniques. be.

(Problems) (a) Among the frames of houses that have tilted due to earthquakes or typhoons, the most severely damaged areas are the four-way difference between the footings and the floor beams.
Most of the holes in the pillars are broken.

(b) Even if the lower part of the column is fastened with bolts and nuts to steel battledore bolts, strips of steel plates, etc. that are buried and fixed in the foundation, in the case of (a), the columns are tilted and the strips of steel plates, etc. are bent.

(c) In an accident where a floor beam falls due to the stress caused by a large number of people gathered together, all of the four floor beams on four sides are broken, and the floor beam itself is also broken horizontally following the breakage of the four floor beams. Often split in the direction of the wood. The pillar was bent horizontally at the hole where the hole was drilled, and it was also split vertically to the bottom end, the steel battledore bolts and strips of steel plate were bent, and the base was also broken. footstone foundation).

(d) In wooden buildings that have collapsed due to natural disasters such as earthquakes and typhoons, the columns and foundations are easily separated, and even in recent constructions where the connections between columns and foundations are strengthened with steel battledore bolts or strips of steel plates, etc. , the lower part of the column was split vertically from the part where the bolt of the fastener that fastened the column and the steel strip, etc. penetrated, and the steel battledore bolts and strip of steel were bent, and the column and the foundation were separated. The foundations often have gouged or cracked parts where steel battledore bolts, strips of steel plates, etc. are buried and fixed.

In the case of this disaster, it is recognized that the pillars were most severely damaged in the parts where floor beams and other beams were attached from all sides.

B "Steel column erecting device (publication number 7174 of the 1980s)""An end plate with appropriate holes drilled is installed vertically at the bottom of the lower end of the steel column, and a hole common to the hole in the end plate is drilled. A steel column erection device in which two angles are fixed to the foundation while maintaining the thickness of the end plates, and the end plate at the lower end of the steel column is fitted and fastened between the relatively fixed angles.'' (Problem) ) The area of the top sides of the two L-beams (angles) is narrow, and the steel column placed on top is extremely unstable.

(b) Therefore, a lot of manpower is required for fastening and assembling.

[Means to solve problems] The configuration of the present invention will be explained with reference to the drawings.

Two steel plates each having the same length as the H-type steel are placed on both outer surfaces of the parallel plate 2, which is a steel plate that forms both sides of the H-type steel, at equal intervals from the joint plate 3, which is a steel plate that connects the parallel plate 2. In the lower part of the vertical U-shaped groove of the column 1, which is a 4-U shaped structural member, which is integrally formed with the plate surfaces of each of the two steel plates at right angles to the outer surface and relatively parallel to each other,
A right-angled protrusion that connects steel U-shaped grooves at right angles.
Similarly, a cross-right angle protrusion is integrally formed at the bottom of all four vertical U-shaped grooves and protrudes from the pillar 1 at right angles in the front, rear, left and right directions in a cross shape.
On the other hand, the base 5 is made by integrally forming wing plates 6, which are steel plates of the same length as the H-shaped steel, on both outer surfaces of the parallel plates 2 of the H-shaped steel, on the extension line of the connecting plates 3. The four pieces of the resulting S-shaped structural members are assembled in a cross shape, and the wing plate 6 that forms one end of each S-shaped structural member is cut out at 45 degrees from each parallel plate 2, and the blades are punched in a cross shape. The adjacent parallel plates 2 and the wing plates 3 are integrally joined together, a steel plate is fitted into the square space in the center, and each side of the steel plate is integrally joined with the joining plate 3 of each sa-shaped structural member. The upper part of the base 5 with the plate 6 as the reference line is formed into a cross groove 10U into which the cross right angle protrusion 1La of the column A fits exactly, forming a cross grooved base B, which is firmly fixed to the foundation 12. Cross on grooved base B = groove 10U, pillar A
This is the joint between the column A and the base B where both the column A and the base B are joined by a fastener 15 by inserting the cross-right angle protrusion 〓 〓La and drilling a common fastening hole 0 for both.

The conventional ``Ashigatame Shihosatsu'' consists of a base fixed to the foundation (in ancient times, stones of various sizes were placed in a dug hole and placed on a tamped foundation), a pillar, and four floor beams. As described above, the "four-way foot-stiffening" of the present invention
consists of a cross-shaped groove base B fixed to the foundation 12, a cross-shaped column A with right-angled protrusions, and four floor beams E with four right-angled protrusions.

A column is established by fitting the cross right angle protrusion 1 La of the attached column A into the cross groove 1 U of the cross grooved base B fixed to the foundation 12, and then Four vertical grooves and right angle protrusion = La are connected,
Four floor beams E with right angle protrusions are fitted into the L-shaped part and are fastened through a common fastening hole 0.

Vertical groove and right angle protrusion of column A〓La connects the groove to L
If four right-angled protruding floor beams E are fitted to all the parts forming the shape, the right-angled protrusion = right-angled protrusion of the attached floor beam E = La is the cross-right-angled protrusion of column A = 10 La and cross-right angle Protrusion = Located above the groove 1LU (on the inner surface of the groove),
It also serves as a stand 10 that supports the floor beam from below. This stand 1
0 and right angle protrusion〓La, reinforcing metal fittings are integrally joined,
This right angle protrusion also allows the depth of the stand 10 to be made longer.

Attaching the collar 9 to the floor beam 8 is convenient for frame assembly.

The common fastening hole 0 is drilled at the factory (the first
figure).

Figure 2 shows two steel plates of the same length as the H-shaped steel on the outer surface of the parallel plate 2 of the H-shaped steel, placed at equal intervals from the joint plate 3, with the plate surface of the steel plate in question. A steel U-shaped groove is connected and protruded at right angles to the lower part of the vertical U-shaped groove of the pillar, which is a three-shaped structural member that is integrally formed at right angles to the outer surface of the parallel plate 2 and parallel to each other. A right-angled protrusion〓La is integrally formed in all three vertical U-shaped grooves, and a T-shaped right-angled protrusion〓TLa projects from the pillar 11 in a T-shape (T-shape) at right angles to the left, right, and rear sides.
With the attached column C, cut out only one side of the parallel plate 2 of the other H-shaped steel in the same section as the width of the H-shaped steel, perpendicular to the connecting plate 3, and in the cut section, cut the other H-shaped steel into a T-shaped section. When fitted, parallel plates 2 adjacent to each other at the fitting part, joint plate 3
This is the joint between the column and the base, which are integrally joined together and the upper part of the base is formed into a T-shaped groove TU into which the T-shaped right-angled protrusion (TLa) of the column C fits.

Frame assembly of floor beam 8 Column 11 which is a 3-shaped structural member
has three U-shaped longitudinal grooves, each of which has a right-angled protrusion (La) connecting the grooves in an L-shape. A protruding floor beam E is assembled.

[Operation of the present invention]

Earthquake resistance (a) Cross = Cross of grooved base B = Cross right-angled protrusion connected to groove 10U = Attached column A has a reaction force on the right-angled protrusion (La) configured forward against forward tilting shaking. occurs, and at the same time a right-angled protrusion 〓La
(b) The combined action of the reaction force of the right-angled protrusion 〓La and the pulling force that opposes the front and back (or left and right) centering on the pillar 1 is as follows.
It exerts strong force as a restoring force against shaking or an earthquake resistance force.

(c) The four-way difference in foot tightening according to the present invention (see FIG. 1, described above) further enhances the effects of (a) and (b) above.

[Effects of the present invention] The present invention has high seismic strength and torsional strength.

[Supplementary note]

Tough materials such as composites of metal fibers and ceramics and carbon fibers polymerized with metal powder can also be used as constituents of the present invention.

[Brief explanation of drawings]

Figure 1 is a slope diagram showing the present invention, four-way difference in footing,
FIG. 2 is a perspective view showing the connection of the T-shaped protruding column C and the T-shaped grooved base D according to the present invention. is a 4-shaped structural material,
is a 3-shaped structural member, A is a cross-shaped pillar with a right-angled protrusion, B is a cross-shaped base with a groove, C is a T-shaped pillar with a right-angled protrusion, D is a T-shaped base with a groove, is a floor beam with a right angle protrusion, a is a protrusion, L is a right angle, ten is a cross,
T is T-shaped, U is groove, 1 is column, 2 is parallel plate, 3 is joint plate, 4 is internal, 5 is base, 6 is wing plate, 7 is reinforcing hardware, 8 is floor beam, 9 is guard , 10 is the stand, 11 is the pillar,
12 and 13 are foundations, 15 is a fastener, and 16 is a foothold.

Claims (1)

[Claims] 1. On both outer surfaces of the parallel plate 2 of the H-type steel, two steel plates each having the same length as the H-type steel are placed at equal intervals from the joint plate 3, with the plate surfaces of the steel plates perpendicular to the outer surface and relatively parallel to each other. A right-angled protrusion (La) in which a steel U-shaped groove is connected at right angles to the lower part of the vertical U-shaped groove of the pillar, which is an integrally formed 4-shaped structural member, is connected to the lower part of the vertical U-shaped groove of all four vertical columns. A cross-shaped protrusion formed integrally with the shaped groove and protruding from the column at right angles in the front, rear, left and right directions in a cross-shape = column A with 10 La, and the other, on both outer surfaces of the parallel plate 2 of H-shaped steel, At the extension line of the joint plate 3, four S-type structural members made by integrally forming the vane plate 6, which is a steel plate of the same length as the H-beam steel, are attached in parallel at 90 degrees to each other in a cross shape as a whole. The plates 2 and the wing plates 3 are integrally joined together, and the upper part of the base with the wing plate 6 as the reference line is made into a cross groove 10U into which the cross right angle protrusion 1La of the column A fits exactly.
The joint between the column and the base.