KR101686763B1 - Isolator having anti-uplifting function - Google Patents
Isolator having anti-uplifting function Download PDFInfo
- Publication number
- KR101686763B1 KR101686763B1 KR1020160000769A KR20160000769A KR101686763B1 KR 101686763 B1 KR101686763 B1 KR 101686763B1 KR 1020160000769 A KR1020160000769 A KR 1020160000769A KR 20160000769 A KR20160000769 A KR 20160000769A KR 101686763 B1 KR101686763 B1 KR 101686763B1
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- KR
- South Korea
- Prior art keywords
- bearing block
- block
- upper plate
- guide
- guide block
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
The present invention relates to an improvement of a seismic system, and more particularly, to an improvement of an seismic system that elastically supports a load of an upper structure to a substructure while permitting horizontal displacement between the support structure and the upper structure due to an earthquake or the like.
In general, a seismic isolation device is an apparatus installed between a support structure and an upper structure so that an upper structure such as a top plate, which is a slab structure of a bridge, is properly supported on a supporting structure such as a bridge supporting it, There are various types and functions depending on the support load.
Some of the teaching apparatuses are provided at the fixed ends of bridges so as to elastically support only the upward and downward loads of the upper structure and do not allow the upper structure to move in the horizontal direction. However, The installed structure permits thermal expansion or thermal contraction of the supported upper structure and slides within a limited range to buffer and absorb the dynamic load acting in the horizontal direction due to wind pressure, running, stopping, earthquake, etc. of wind, Sometimes the structure is allowed to move in the horizontal direction to provide an isolation function.
In general, a seismic isolation device having a function to resist a negative reaction force takes a form of a scissor or a cross. 12 and 15 of US2006 / 0174555 A1. When the upper structure to be supported is moved in only one direction of the throttling direction or the direction perpendicular to the throttling direction with respect to the lower structure, When the upper structure simultaneously moves in the direction perpendicular to the throttling direction and the throttling direction, since the height of the upper structure is simultaneously increased, the bi-directional resultant force acts to increase the resistance, so that the resistance characteristics in all directions are not the same. There is a problem that it occupies a large area.
For the isolation devices that have the same resistance characteristics in all directions and occupy a relatively small area, registration number 10-0757749 (structure isolation device), 10-1383506 (isolation device with no restoration area removed), 10-1327566 (Hereinafter referred to as " pre-registered invention ") of the present invention. Pre-registration The same type of isolation device as the invention is installed in a place where the anti-resisting function is not needed because it has excellent seismic performance but does not have a negative-reaction resistance function. Where a negative reaction force function is required, it shall be installed with a separate device providing negative reaction force function.
In the seismic device of the same type as the line registration invention (aka EQS), the upper plate fixed to the bottom of the upper structure is installed in a much larger area than the lower plate fixed on the upper surface of the lower structure, and the upper plate causes horizontal displacement. It is difficult to install resistive components. Particularly, since the horizontal position between the upper plate and the lower plate is changed in the forward and backward directions and left and right, it is not possible to install a component resistant to the negative reaction force in the bidirectional movable end, which requires horizontal displacement in both directions of the throttling axis and the orthogonal axis. In fact.
An object of the present invention is to provide an isolation device having the same resistance characteristics in all horizontal directions but also having a negative-reaction-resistance function.
Another object of the present invention is to provide an isolation device having a small area but excellent seismic performance and also having a negative-reaction-resistance function.
It is still another object of the present invention to provide an isolation device that has the same resistance characteristics in all the horizontal directions, occupies a small area, has excellent isolation performance, has a negative-reaction-resistance function, and has a restoration performance.
The present invention provides a seismic isolation device having a negative-reaction-resistance function, the seismic isolation device comprising: a top plate part installed on a bottom surface of an upper structure; A lower plate installed on a supporting structure for supporting the upper structure; A bearing block which permits horizontal displacement of the upper plate portion in a state in which the upper surface is in surface contact with the lower surface of the upper plate portion; An elastic body elastically supporting the bearing block; One end of the elastic block is fixed to one of the lower plate and the bearing block and the other end is hooked on a retaining portion formed on the other of the lower plate and the bearing block so that the bearing block is lifted upward A sub-reaction resistance pin which allows the tilting of the bearing block while preventing the sub- A first sub-reaction force resistance bar disposed laterally from the lower side of the bearing block and having both ends protruded laterally from left and right sides of the bearing block; A guide block extending downward from the upper plate portion; And a first latching protrusion installed on the guide block and engaged with both ends of the first sub-reaction force resisting bar to prevent the upper plate from being lifted upward when the upper plate is lifted upward,
The guide block and the first engaging jaw are moved in the forward and backward directions in a state of being in contact with the first sub-
As shown in FIG. 3, the first sub-reaction force resistance bar is inserted into the guide groove and protruded downward from the bottom surface of the bearing block, It is installed so as not to move forward and backward,
Wherein the first sub reaction force resistance bar and the guide groove are formed in a rectangular cross section and a sliding member is provided on the upper surface and both side surfaces of the first sub reaction force resistance bar and the inner surface of the guide groove.
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Preferably, the elastic members are separated from each other at an interval in front and back, and the sub-reaction force resisting fins are provided for each of the separated elastic members, and the first sub-reaction resistance bar passes through between the elastic members separated before and after.
And the lower plate portion may be provided so as to support the elastic members separated in the front and rear directions and spaced apart from each other.
It is preferable that a rotation supporting groove is formed at both ends of the first auxiliary reaction force resistance bar and a rotation supporting body is provided in the rotation supporting groove for rotatably supporting a surface in surface contact with the inner surface of the guide block.
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An elastic mechanism may be provided between the bearing block and the guide block to elastically support the bearing block and the guide block while allowing the guide block to move back and forth.
The guide block is installed on the left and right and front and rear sides of the bearing block at intervals along the entire circumference thereof and elastically supports the bearing block and the inner surface of the guide block on all four sides of the bearing block, An elastic mechanism allowing front, rear, and left and right movement of the front and rear wheels can be provided.
At this time, an elastic body for elastically supporting between the bearing block side surface and the inner surface of the guide block may be provided on the outer peripheral surface of the first sub-reaction force resistance bar protruding laterally from both sides of the bearing block.
Wherein the guide block is disposed at an interval along the front and rear sides of the bearing block and is disposed at a position below the bearing block or through the bearing block so as not to be in contact with the first minor- A second auxiliary reaction force bar protruding in both forward and backward directions and a second auxiliary reaction force bar provided on the guide block and hooked to both ends of the second auxiliary reaction force resistance bar when the upper plate is lifted upward to prevent the upper plate from being lifted upward And can have a second stopping jaw.
If necessary, an elastic mechanism may be provided between the bearing block and the guide block to elastically support the bearing block and the guide block while allowing the guide block to move back and forth, left and right, or back and forth and left and right.
The outer peripheral surface of the first sub-reaction force resistance bar projected on both lateral sides of the bearing block and / or the outer peripheral surface of the second sub-reaction force bar protruding in both lateral directions before and after the bearing block, And an elastic body for elastically supporting the inner surface of the guide block.
According to the present invention, it is possible to obtain a seismic isolation device having a negative resistance resistance function with the same resistance performance in all horizontal directions.
According to the present invention, it is possible to obtain an isolation device having the same resistance performance in all the horizontal directions, a small area, a restoration performance, and a negative-reaction-resistance function.
1 is an exploded perspective view of a seismic isolation device having a negative-reaction-resistance function according to the present invention,
Figure 2 is a cross-sectional view according to II of Figure 1,
Fig. 3 is a longitudinal sectional view taken along the line JJ in Fig. 1,
Fig. 4 is a plan view showing a state in which the upper plate is removed,
Fig. 5 is a view showing a modification of Fig. 4,
Fig. 6 is a view showing another modification of Fig. 4,
FIG. 7 is a view showing a modification of FIG. 3,
FIG. 8 is a plan view showing still another modification of FIG. 3. FIG.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
2 is a cross-sectional view taken along line II in FIG. 1, FIG. 3 is a longitudinal sectional view taken along line JJ in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line II- FIG.
1 to 4, an
The
The
The
An
The
On the side surface of the
The first partial reaction
At the same time, both end portions of the first sub reaction
Particularly, a
The
The embodiment described with reference to Figs. 1 to 4 is provided at a bidirectional movable end, and provides a restoring force for exerting a force in a direction to return the upper structure supported when the external force is removed.
Fig. 5 is a view showing a modification of Fig. 4. Fig.
The
The rest are the same as those described with reference to Figs.
Fig. 6 is a view showing another modification of Fig. 4. Fig.
The front and rear guide blocks 111 of the
The rest are the same as those described with reference to Figs.
FIG. 7 is a view showing a modification of FIG. 3. FIG.
A
The rest are the same as those described with reference to Figs.
FIG. 8 is a plan view showing still another modification of FIG. 3. FIG.
The
When the
The rest are the same as those described with reference to Figs.
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The present invention can be used to create an isolation device having the same resistance to the displacement in the entire horizontal direction and also having a negative-reaction-resistance function.
100: Isolation device 110: Upper plate
111: guide block 112: first stopping jaw
114: second engaging jaw 120: bearing block
123: guide groove 130: elastic member
140: Part 1 Reaction force resistance bar 143:
150: lower plate part 152:
160: elastic body 170: negative reaction force resistance pin
171: jaw
Claims (12)
A first sub-reaction force resistance bar disposed laterally from the lower side of the bearing block and having both ends protruded laterally from left and right sides of the bearing block; And
And a first latching protrusion installed on the guide block and engaged with both ends of the first sub-reaction force resisting bar to prevent the upper plate from being lifted upward when the upper plate is lifted upward,
The guide block and the first engaging jaw are moved in the forward and backward directions in a state of being in contact with the first sub-
The first auxiliary reaction force resistance bar is inserted into the guide groove and protrudes downward from the bottom surface of the bearing block so as to be guided in the left and right directions and can not move forward and backward Installed,
Wherein the first auxiliary reaction force resistance bar and the guide groove are formed in a rectangular cross-sectional shape, and a sliding member is provided on the upper surface and both side surfaces of the first auxiliary reaction force resistance bar and on the inner surface of the guide groove,
A rotation support groove is formed at both ends of the first sub reaction force resistance bar and a rotation support body for supporting the surface of the guide block in contact with the inner surface of the guide block in a rotatable manner to receive rotation of the guide block is provided Wherein the base member has a negative impact resistance function.
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KR1020160000769A KR101686763B1 (en) | 2016-01-05 | 2016-01-05 | Isolator having anti-uplifting function |
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KR1020160000769A KR101686763B1 (en) | 2016-01-05 | 2016-01-05 | Isolator having anti-uplifting function |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100726164B1 (en) * | 2006-03-15 | 2007-06-13 | 주식회사 에스코알티에스 | Bridge bearing with elastic materials for resisting negative reactions |
KR20140117052A (en) * | 2013-03-26 | 2014-10-07 | 유니슨이테크 주식회사 | Earthquake isolation system against vertical negative reaction |
KR101548479B1 (en) * | 2015-02-11 | 2015-08-31 | 조영철 | Spring restoring and frictional type seismic isolator |
-
2016
- 2016-01-05 KR KR1020160000769A patent/KR101686763B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100726164B1 (en) * | 2006-03-15 | 2007-06-13 | 주식회사 에스코알티에스 | Bridge bearing with elastic materials for resisting negative reactions |
KR20140117052A (en) * | 2013-03-26 | 2014-10-07 | 유니슨이테크 주식회사 | Earthquake isolation system against vertical negative reaction |
KR101548479B1 (en) * | 2015-02-11 | 2015-08-31 | 조영철 | Spring restoring and frictional type seismic isolator |
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