JPH0932003A - Method of reducing seismic force acting upon building using shock eliminating mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a seismic force by laying a shock eliminating mat having a suitable frictional coefficient and elasticity between the base of the building and the footing. SOLUTION: In such a case that a footing is directly built, a concrete subslab or the like is used so as to form the base 1 of a building. Then, a shock eliminating mat 2 having a suitable frictional coefficient and elasticity is laid on the base 1. Next, a temporary form is assembled on the mat 2, and then a concrete footing 3 is formed. Accordingly, upon a large earthquake, even though an impactive horizontal oscillation of the ground occurs, the horizontal oscillation of the building can be reduced as possible as it can due to its inertia and sliding, and impactive force caused by vertical oscillation can be alleviated. Further, construction thereof is simple and materials thereof are inexpensive, thereby it is possible to easily use this method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation method for reducing the seismic force acting on a building during a large-scale earthquake by providing a shock absorbing mat on the foundation of the building to absorb horizontal and vertical shocks. is there.

[0002]

2. Description of the Related Art Conventionally, there has been a method of making use of the restoring characteristic of a laminated rubber in the horizontal direction.

[0003]

Since the conventional method requires high technology, the construction cost is very high, and even if it can be used in a large-scale building such as middle and high-rise buildings, it can be used in a small scale such as a private house. The building was completely unusable.

[0004]

The present invention, unlike the conventional method, is a simple method that utilizes the horizontal sliding of the shock absorbing mat surface and the elasticity of the shock absorbing mat in the vertical direction.
It features simple construction and low construction cost.

[0005]

[Operation] After performing the ground work (1) of the building, the impact cushioning mat (2) for cushioning the horizontal and vertical impacts is laid, and a temporary frame is assembled on the mat and the concrete footing (3) is constructed.

[0006]

[Examples] (a) In the case of a direct foundation that does not drive piles, an impact cushioning mat (2) is installed on the ground work (1) using discarded concrete or the like, and a footing (3) is placed on it. It is a construction method. (B) In the case of pile foundations, the impact cushioning mat (2) is installed on the ground work (1) using concrete to protect the pile head, and the footing (3) is constructed on it. is there. (C) FIG. 3 shows an example of a shock-absorbing mat made of synthetic resin, which has an appropriate friction coefficient and elasticity for effectively acting during a large-scale earthquake.

[0007]

According to the present invention, the horizontal fluctuation of a building is reduced as much as possible by the inertial force and the sliding surface against the shocking horizontal fluctuation of the ground that occurs during a large-scale earthquake. Further, even if the vertical shock of the ground occurs at the same time, the elasticity of the shock absorbing mat softens the shock force. INDUSTRIAL APPLICABILITY The present invention is a construction method that can be easily used by anyone without raising the construction cost because the construction is simple and the materials are inexpensive, and damage to a small building such as a detached house during a large-scale earthquake can be prevented. This is the most suitable seismic isolation method as a construction method to minimize the amount of damage.

[Brief description of drawings]

FIG. 1 is a construction sectional view of the present invention (in the case of a direct foundation).

FIG. 2 is a construction sectional view of the present invention (in the case of a pile foundation).

FIG. 3 is a sectional view of a shock absorbing mat.

[Explanation of symbols]

 1 Building groundwork 2 Shock absorbing mat 3 Footing 4 Hollow box crushed by sliding footing 5 Ground 6 Foundation

Claims (1)

[Claims] 1. A shock-absorbing mat (2) having an appropriate friction coefficient and elasticity between the earthwork (1) and the footing (3) of a building.
The method of installation.