JP2002138576A - Wooden building base isolation equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wooden building base isolation equipment in which strength greater tan usual is not required, an overall construction cost is not high and easy to be executed. SOLUTION: The bottom part 23 of a rubber bundle is closely adhered and fixed to a foundation 10, a bolt 13 is inserted into a rubber bundle upper hole 14 and the bolt upper part is fixed to the foundation 12. At a time of an earthquake, the lower part of the rubber bundle 11 under the foundation 12 is shaken thus suppressing vibration of the upper building. At a time of a large scale earthquake, a reinforcing wire is stretched diagonally in more than four directions from the foundation 12 to the bottom part of the bolt 13 to prevent the rubber bundle 11 from being fallen due to excessive horizontal shakes and vertical shakes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The bundle rubber bottom portion 23 is tightly fixed to the base 10. Insert bolt 13 into bundle rubber upper hole 14 (insertion depth 80m
The upper part of the bolt 13 is fixed to the base 12.

The length of the safety device bolt 15, the height of the bundle rubber 11, the length of the base thickness 20, and the length of approximately 70 mm are added to the total bolt length. The diameter of the bolt 15 is about 25 mm. One end of the bolt 15 is fixed to the base 12 with the upper and lower nuts 16. On the base 10, a circumference 18 at a distance 21 of 50 mm from the circumference of the bolt 15 in thickness. Bolt 1 depth
A play space 21 of about 50 mm is formed from the tip 22 of the bolt 15 to the bottom 17 of the hole so that the fishing boat 5 is in a fishing state. Bolt 1
In 5, a reinforcing wire 19 is stretched from the base 12 to the lower part of the bolt 15 in a diagonal line of four or more directions.

[0003] Safety equipment during a large-scale earthquake. Figure 3 Bottom side of receiving hole 1
7 and fishing bolt 15 The lower interval allows the bundle rubber 11 to be freely expanded and contracted when it is rolled, and the bundle rubber 11 when it is rolled is too stretched, thereby exhibiting excellent control for preventing roll.

[0004] The number of the bundled rubber 11 and the number of safety devices to be installed varies depending on the unequal weight of a two- or three-story building. Note that the hardness of the bundle rubber 11 also changes depending on the difference in building weight.

[0005] Although there is a difference from the conventional construction method, the slabs require a higher strength than conventional, except for the rubberized safety device (Fig. 2), so that the total construction cost is not expensive and can be easily implemented.

[Brief description of the drawings]

[Fig. 1] Bundled rubber

[Fig. 2] Safety device

FIG. 3 is a sectional view of a safety device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Foundation 11 Bundle rubber 12 Base 13 Bolt 14 Bundle rubber upper hole 15 Bolt 16 Nut 17 Hole bottom 18 Circumference 19 Wire 20 Base thickness 21 Space 22 Tip 23 Bundle rubber bottom

Claims (2)

[Claims] 1. A bundle rubber 11. A conventional slab is replaced with a rubber material or polyurethane rubber (the slab is usually made of stone or concrete. Fig. 1) 2. An overturning prevention device for preventing excessive roll and vertical rocking of the bundle rubber 11. Safety device FIG. Basic sectional view FIG.