JP2005307724A5 - - Google Patents

Description

A basic structure consisting of a cylindrical cylinder made of synthetic rubber, an old tire chip, a piston joint and an ita spring, characterized by seismic isolation effects against vibrations including the direct type

Regarding the foundation structure of earthquake resistance (base isolation)

A base material made of synthetic rubber on an earthquake-resistant (base-isolated) foundation.
(1) Deterioration with time of rubber and steel plate (2) Easily horizontally deformed and temporarily have anti-seismic effects such as peeling. (1) Japanese Patent Laid-Open No. 9-60335 Seismic isolation structure with coil spring and rubber bellows (2) Japanese Patent Laid-Open No. 2004 -257492 Coiled rubber cylinders are piled up to absorb the horizontal vibrations of bridges, etc. (3) Japanese Unexamined Patent Publication No. 63-26430 Synthetic rubber and springs inserted between fixed box type base blocks Is similar to this,
a) Low vertical and left / right amplitude widths, weak against strong earthquakes b) Neither is directly connected to the foundation pile, but corresponds to cracks / vibrations in the ground layer, corresponding to ground vibrations (all directions) 3) In addition, the various types of seismic isolation (earthquake-resistant) structures that have been put to practical use to date have shown a considerable effect on rolling, but against vertical motion (directly under type) Countermeasures are unresolved issues

Means to solve the problem

(1) Filled with old tires in a cylindrical cylinder of synthetic rubber with high elasticity and supports the upper structure with a reinforced plastic flexible piston (2) Reinforces the absorption of vertical pressure and prevents rolling due to strong winds and rolls In order to support the upper and lower flanges by installing several springs in the vicinity of (1), helping to automatically correct torsion and horizontal deformation. (3) Install a stack of old tire chips between slab, concrete and pile. Reduce the first thrust

Economic effect of the invention

(1) Recycling and economic effects utilizing rubber waste such as old tires, and this equipment only need to be installed at the corners of the building. In addition to the construction costs, conventional foundation work (especially construction around the entire building) The cost is greatly reduced compared to (2). Excellent durability and maintainability, and almost no repair inspection is required.

This equipment is divided into middle and high-rise foundations and low-rise foundations (detached houses), but there is only a difference in dimensions. Basic material types and shapes Basic shape assembled Normal side view Side view when the ground moves horizontally Shape of direct type vertical vibration

Explanation of symbols

Basic material a Disc-shaped furan (iron) with a concave surface in the lower center
b Flexible shaft with round ends (strengthening plastic → lubricity at both ends of shaft)
c Piston (iron) with a concave surface in the center of the top surface and a convex bottom surface
d Cylindrical cylinder made of synthetic rubber with inner diameter matched to c e Disc-shaped bottom flange (iron)
f Chips cut from waste rubber such as old tires g Itabane building foundation members h Beam i Slab concrete j Old tire laminates k Pile

Claims (3)

A basic structure that improves the earthquake resistance of buildings by absorbing vibrations in all directions, such as earthquakes, using a synthetic rubber cylinder filled with chips such as old tires. Piston valve with a flexible shaft that equalizes the elastic compression of rubber in the cylinder, keeps the flange horizontal, and naturally corrects torsion and horizontal deformation Use of a spring spring to adapt the shape deformation of the seismic foundation during horizontal movement, suppress rolling, and reinforce the absorption force of vertical pressure

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