Earthquake isolator

Abstract

Invention; is related to isolators eliminating circular forces caused by earthquake forces acting on the building. It is placed between foundation of structures manufactured by steel construction, concrete, prefabricated structure or other methods and structure and which reduces/terminates impact of earthquakes on structures. Thus, damage to be given by earthquake to carrying elements of building is eliminated.

Claims

1. A seismic isolator, comprising: an anchor rod; a lower chassis; a lower moving ball group; a body with a plurality of holes and a plurality of reinforcing pillars such that at least one of the plurality of reinforcing pillars is mounted around at least one of the plurality of holes; a plurality of centering pistons; a heel placed above the lower moving ball group; an upper ball group; an upper chassis; a connection plate; and a plurality of connection sprouts; wherein the connection plate is mounted on the heel to secure the upper ball group and connection sprouts to obtain an assembly set; and wherein the assembly set is mounted on the body and placed on the lower chassis, the lower moving ball group moves freely between the heel and the lower chassis to meet the mechanical load of a building placed on the lower chassis, the seismic isolator is secured to the ground with the anchor rod.

2. The seismic isolator of claim 1, wherein the body comprises a plurality of reinforcing pillars.

3. The seismic isolator of claim 1, wherein the upper chassis comprises a plurality of flags.

4. The seismic isolator of claim 1, wherein the heel is movable.

5. The seismic isolator of claim 1, wherein the centering pistons brings the heel to an original position.

6. The seismic isolator of claim 1, wherein the heel is connected to the upper ball group, the connection plate and the connection sprouts.

7. The seismic isolator of claim 1, wherein the upper ball group is connected to the heel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1. Assembled Perspective view

(2) FIG. 2. Exploded View Perspective

(3) FIG. 3.A Detail View

(4) FIG. 4. Mounted Side View

(5) FIG. 5. A-A Section View

(6) FIG. 6. B Detail View

(7) FIG. 7. C Detail View

(8) FIG. 8 B-B Section View

(9) FIG. 9. D Detail View

(10) FIG. 10. Assembled Top View

(11) FIG. 11.E Detail View

(12) FIG. 12. F Detail View

(13) FIG. 13. Side View of the heel piece

(14) FIG. 14. Top View of the heel piece

(15) FIG. 15. Exploded Perspective view of the heel part

(16) FIG. 16. G Detail View

(17) FIG. 17. Bottom Plate and Side View of Old Ball Group

(18) FIG. 18. H Detail View

(19) FIG. 19. Top View Bottom Plate and Lower Ball Group

(20) FIG. 20. Bottom Plate and Lower Ball Group exploded perspective view

(21) FIG. 21. 1 Detail View

(22) FIG. 22. Overview of Centering Piston Perspective

MEANINGS OF PART NUMBERS SPECIFIED IN FIGURES ARE AS FOLLOWS

(23) 1. Anchor rod 2. Lower Chassis 3. Lower Moving Ball Group 4. Body 4.1. Reinforcing Pillar 5. Centering Piston 6. Heel 7. Top Ball Group 8. Top chassis 8.1. Flag 9. Link plate 10. Access sprouts

DETAILED DESCRIPTION

(24) Invention consists of anchor rod (1), lower chassis (2), lower moving ball group (3), body (4) centering piston (5), heel (6), upper ball group (7), upper chassis (8), connection plate (9) connection sprouts (10). Body (4), comprises reinforcing pillar (4.1). The upper chassis (8) contains flag (8.1) on it.

(25) Holes are drilled into sections on body (4) where centering piston (5) is to be assembled. At least one reinforcing pillar (4.1) is mounted on edges of the hole. Then centering pistons (5) are placed on body (4) and secured. Centering pistons (5) should be secured to be aligned with the vertical axis of the body (4).

(26) Body mounting structure is placed on lower chassis (2) and mounted together rigidly. Then lower moving ball group (3) meets the mechanical load of building placed on lower chassis (2) according to the force distribution. Because lower moving ball group (3) is a free moving carrying element, it is deposited in a slot. Lower moving ball group (3) moves freely between heel (6) and lower chassis (2).

(27) Connection plate (9) is mounted on heel (6) where upper ball group (7) and connection sprouts (10) are secured. The prepared assembly set is mounted on lower moving ball group (3) to be coaxial with the body (4). Then the upper chassis (8) is connected to body (4) in same axis with lower chassis (2) with reinforcement struts (4.1) rigidly. To increase the strength of upper chassis (8), flags (8.1) are placed on it in a circular axis.

(28) At least one seismic isolator facing the bottom of each carrier column will be secured on the foundation of the structure according to the ground properties with anchor rods (1). Structure is connected to seismic isolator with connection sprouts (10). In required circumstances, perennial foundation will be made on connection sprouts (10) of seismic isolators placed on foundation with specified intervals and structure will be built on this perennial foundation.

(29) The devastating effects, that are created by horizontal movements during earthquakes, steins from circular form force. So, structure faces centrifugal force. This centrifugal force constitutes the devastating effects on structure. To minimize or eliminate this impact, the invention provides effective protection.

(30) The invention is used to isolate the resonance faced by structures during an earthquake. When earthquake-induced force starts to impact a structure built on seismic isolator; lower chassis (2), body (4) and the upper chassis (8) mounted to be anchored to the foundation, starts to move together with the foundation. Heel (6), connection plate (9) and the connection sprout (10) tries to maintain its current position together with building. The system to provide this effect is upper ball group (7) and is in contact with upper chassis (8) and secured to heel (6) (freely movable within housing) and lower moving ball group (3) located under the heel (6). Upper ball group (7) at the same time transfers momentum coming from the structure to the body (4) with heel (6). Momentum transmitted to body (4) is then transferred to foundation. Due to free movement of lower moving ball group (3) within the housing friction stemming from the weight of the structure during earthquake is zero. Thus, horizontal deflections coming to foundation are eliminated without being transferred to structure. After the earthquake ends, heel (6) may be in a position eccentric from the center of seismic isolators. Centering pistons (5) located on the body (4) provides the heel (6) and structure to take original position before the earthquake. Centering piston (5) strokes are equal and are located at equal intervals. With equal force and speed coming to stroke mills of centering pistons (5), heel (6) is brought to center of earthquake isolators by means of centering pistons (5). Thanks to a free moving ball on tip of the cylinder, deformation and friction are minimized.

(31) Because heel (6) will move freely within body (4) during earthquake, diameter difference between body (4) and heel (6) is calculated with safety criteria to meet displacement of earthquake in respect to the ground characteristics where the foundation will be established.