JPH04272373A - Anchor bolt for connection between foundation and base of house, etc., and mounting method thereof - Google Patents

Abstract

PURPOSE:To prevent the transfer of vibration of the foundation to a base of the upper part thereof by keeping a firm connection state between the foundation and the base not only in the stationary state but also in vibration, and absorbing vibration as well as buffer action. CONSTITUTION:An anchor bolt for connecting between foundations of a house, etc., having a longer L-shape in its entirety and forming a spring section 5 from the intermediate section to the upper section thereof is so formed that a screw section 6 screwing a fixing nut 8 thereinto is provided to the upper end section. A relief-hole 10 formed on a base 2 inserting the spring section 5 of the anchor bolt therein is in a cone shape. According to the constitution, vibration can be absorbed and buffered in the spring section 5, and the transfer of the vibration of the foundation to the base can be prevented.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an anchor bolt for connecting foundations to securely connect a foundation on which a vibration damping device is installed in general houses, various storage tanks, etc., and a method for installing the same. It is something.

0002

2. Description of the Related Art Conventionally, a long L-shaped anchor bolt with a bent lower portion has been used as a coupling device for the above-mentioned purpose.

0003

[Problems to be Solved by the Invention] In the case of the above-mentioned conventional anchor bolts, they merely connect the foundation and the foundation, and cannot absorb vibrations. Therefore, the present invention
It maintains a solid connection between the foundation and the foundation not only when it is stationary but also when it vibrates, and can also absorb and buffer vibrations, preventing vibrations from the foundation from being transmitted to the foundation above. The object of the present invention is to provide an anchor bolt for connecting foundations and a method for installing the same.

0004

[Means for Solving the Problems] The present invention has an overall length L
The above-mentioned problems have been solved with an anchor bolt for connecting foundations of houses, etc., which is shaped like a letter, has a spring part formed from the middle part to the upper part, and has a threaded part at the upper end into which a fixing nut is screwed. Preferably, the relief hole in the base for inserting the spring portion has a conical shape.

[0005]

[Operation] The anchor bolt swings as the foundation vibrates, but the action of the spring section in the middle absorbs or buffers the vibration, preventing transmission of the vibration to the foundation.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a connector according to the present invention that connects a foundation 1 and a foundation 2. As shown in FIG. Reference numeral 3 designates an anchor bolt, the lower part 4 of which is bent, giving it an elongated L-shape as a whole. A spring part 5 is formed from the middle to the upper part of the anchor bolt 3, and a threaded part 6 is provided at the upper end. The spring part 5 is an anchor.
The bolt 3 itself may be processed and provided, or a separately manufactured spring may be welded to the anchor bolt. A nut 8 is screwed into the threaded portion 6 via a washer 7. Numeral 9 is a vibration damping device inserted between the foundation 1 and the foundation 2 at appropriate intervals.

The anchor bolt according to the present invention has its lower part 3 embedded in the foundation 1 and fixed there. and,
A spring part 5 extends into a relief hole 10 formed in the base 2, and a threaded part 6 at the upper end projects through a washer 7 placed on the base 2. By screwing a nut 8 into this protruding threaded portion 6 and tightening it, the foundation 1 and the foundation 2 are firmly connected. Note that contact between the inner wall of the escape hole 10 and the spring portion 5 due to the swinging of the anchor bolt 3 can be effectively avoided,
Further, in order to maximize the contact area between the washer 7 and the base 2, it is preferable that the escape hole 10 has a conical shape as shown.

When the anchor bolt according to the present invention is used, when the ground vibrates due to an earthquake or the like, first the lower part 3 of the anchor bolt fixed to the foundation 1 swings due to the vibration, but the middle spring The spring action of part 5, and
Vibrations are absorbed or buffered by the shock absorbing action of the vibration damping device 9, and the vibrations are not transmitted to the base 2. At this time, the spring part 5 becomes inclined, but since the escape hole 10 is conical, even if the amplitude is large, the spring part 5 will not come into contact with the inner wall of the escape hole 10, and the spring part 5 will not come into contact with the inner wall of the escape hole 10. There is no risk of resonance occurring. It should be noted that the foundation 1 and the foundation 2 continue to be firmly connected by the plurality of anchor bolts according to the present invention, regardless of whether the structure is vibrating or not.

[0009]

[Effects of the Invention] As described above, the present invention can synergistically prevent the transmission of vibrations to the foundation by using it together with a vibration damping device, and continue to firmly connect the foundation and the foundation even in normal times. effective.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing the usage state of an embodiment of the present invention.

[Explanation of symbols]

1. Basics 2. Foundation 3 Anchor bolt 4 Lower part of anchor bolt 5 Spring part 6 Screwed part 7 Washer 8 Nut 9 Vibration buffer device 10 Escape hole

Claims (2)

[Claims] Claim 1: An anchor for connecting foundations of houses, etc., which has an overall long L-shape, has a spring part from the middle part to the upper part, and has a threaded part on the upper end into which a fixing nut is screwed. bolt. 2. An escape hole formed in the base through which the spring portion of the anchor bolt according to claim 1 is inserted;
A method for installing an anchor bolt for connecting foundations of houses, etc., characterized by having a conical shape.