KR101368312B1 - Seismic retrofit structures by damper joint - Google Patents

Seismic retrofit structures by damper joint Download PDF

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Publication number
KR101368312B1
KR101368312B1 KR1020130085310A KR20130085310A KR101368312B1 KR 101368312 B1 KR101368312 B1 KR 101368312B1 KR 1020130085310 A KR1020130085310 A KR 1020130085310A KR 20130085310 A KR20130085310 A KR 20130085310A KR 101368312 B1 KR101368312 B1 KR 101368312B1
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KR
South Korea
Prior art keywords
reinforcement
damper
flange plate
seismic
steel
Prior art date
Application number
KR1020130085310A
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Korean (ko)
Inventor
황대성
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비코비엔주식회사
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Priority to KR1020130085310A priority Critical patent/KR101368312B1/en
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Publication of KR101368312B1 publication Critical patent/KR101368312B1/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/025Structures with concrete columns
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/027Preventive constructional measures against earthquake damage in existing buildings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/129Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by friction-damping means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00Special physical effects, e.g. nature of damping effects
    • F16F2222/04Friction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00Type of springs or dampers
    • F16F2238/04Damper

Abstract

The present invention relates to a seismic reinforcing structure in which the reinforcement is joined to the structural body to improve the seismic performance by adding the reinforcement strength of the reinforcement to improve the seismic performance. The present invention also relates to a seismic reinforcing structure which further improves the seismic performance by adding energy dissipation capacity by
Seismic reinforcing structure according to the present invention, the structural body; A reinforcement body having both ends fixed to the structural body while facing the structural body; A steel damper fixedly installed on the structural body between the structural body and the reinforcement body; A friction damper installed and fixed to the reinforcement while being connected to the steel damper between the steel damper and the reinforcement; It is configured to include, characterized in that the seismic reinforcement is reinforced by the strength of the reinforcement body, and energy dissipation by the steel damper and friction damper.

Description

Seismic Retrofit Structures by Damper Joint

The present invention relates to a seismic reinforcing structure in which the reinforcement body is added to the structural body to add the reinforcement strength of the reinforcement body to improve the seismic performance, and more specifically, to the damper by installing the reinforcing body to the structure body via a damper. The present invention also relates to a seismic reinforcing structure that further improves the seismic performance by adding energy dissipation capacity.

In general, the building is provided with openings for windows for mining, ventilation, inflow and outflow. Openings are more concentrated in stress than other parts, especially when horizontal loads such as earthquakes can cause tensile cracking at the openings, leading to building collapse. As a result, reinforced concrete buildings completed before 1989, when the seismic design standards were enacted, may not have sufficient seismic performance and may cause great damage due to structural damage caused by openings during earthquakes.

Various seismic reinforcement methods have been applied to minimize human and physical damage from earthquakes. As a representative seismic reinforcement method, there is a method of installing a vibration suppression device. As a vibration suppression device, a brace damper is installed in a diagonal direction to dissipate energy by plastic hysteresis behavior when a cyclic load is applied by an earthquake. However, the conventional method of installing the vibration suppression device requires a structural member having a large rigidity such as a pillar or a beam for supporting the brace damper, which is difficult in construction, and requires a separate installation space, thereby limiting its applicability. The disadvantage is that it obscures the field of view.

In order to improve the shortcomings of the damper-type damper, a seismic reinforcing method as shown in FIG. 1 has been proposed. As can be seen by fixing the hinged square frame rotatably at the corner of the building opening in the corner, the damper for absorbing the vibration energy in the inner corner of the square frame to install plastic behavior. This method is to reinforce the seismic performance by the energy dissipation capacity by the damper as well as the strength strength by the square frame. This method is advantageous in that it can be modularized and can sufficiently secure the opening by minimizing the disturbance of the occupant's view, but the disadvantage that the field of view of the opening is obscured by the edge damper still remains.

The present invention was developed to improve the seismic reinforcement structure to reinforce the seismic performance by installing a steel frame as a reinforcement in the opening of the structure, the field of view by the damper while effectively reinforcing the seismic performance by the reinforcement strength of the reinforcement and the energy dissipation capacity of the damper There is a technical challenge in providing a new method of seismic reinforcing structure to improve the blocking problem.

In order to solve the above technical problem, the present invention provides a seismic reinforcing structure to seismic reinforcement by joining the reinforcement to the structural body, the structural body; A reinforcement body having both ends fixed to the structural body while facing the structural body; A steel damper fixedly installed on the structural body between the structural body and the reinforcement body; A friction damper installed and fixed to the reinforcement while being connected to the steel damper between the steel damper and the reinforcement; It is configured to include, to provide a seismic reinforcement structure of the structure by the damper bonding, characterized in that the seismic reinforcement by the strength of the reinforcement, and the energy dissipation by the steel damper and friction damper.

The present invention also provides a seismic reinforcing structure in which seismic reinforcement is reinforced by joining a reinforcing body to a structural body, the structural body forming an opening surrounded by vertical structures on both sides and upper and lower horizontal structures; Reinforcement body is installed in a square frame structure by the steel frame member facing the structure body; A steel damper installed and fixed between the structural body and the reinforcement body, wherein the steel damper is seismically reinforced by reinforcing strength of the reinforcement body and energy dissipation by the steel damper, wherein the steel damper is installed and fixed to face the structural body. 1 flange plate; Is installed to connect between the first flange plate and the reinforcement, and is provided as a slit plate or strip plate, both ends are fixed to the first flange plate and the reinforcement, or both ends are installed by hinge coupling to the first flange plate and the reinforcement It provides a seismic reinforcement structure of the structure by the damper bonding, characterized in that comprising a; damping plate.

According to the present invention, the following effects can be expected.

First, in the present invention, since the damper is installed as a joining medium between the structural body and the reinforcement, the damper can be effectively reduced by the reinforcement strength by the reinforcement and the energy dissipation capacity by the damper, while reducing the installation space of the damper. As a result, the opening of the structure can be secured without obstructing the field of view. As a result, the space availability of the structure is not significantly changed before and after the seismic reinforcement, so that space design can be performed in a conventional manner, and in particular, the opening can be designed as windows or the like according to a conventional method.

Second, the present invention can be easily applied because it is necessary to use materials that are commonly applied to improve the seismic performance.

1 shows a seismic reinforcing structure according to the prior art.
2 shows an example in which a slit or strip type damping plate is applied as a steel damper as a first embodiment of a seismic reinforcing structure according to the present invention.
3 shows an example in which a damping plate of a hinge type is applied as a steel damper as a second embodiment of the seismic reinforcing structure according to the present invention.
Figure 4 is a third embodiment of the seismic reinforcement structure according to the present invention, shows an example in which a square steel frame is joined to the opening via a steel damper.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings and preferred embodiments.

2 to 4 are various embodiments of the seismic reinforcing structure according to the present invention. The present invention relates to a seismic reinforcing structure that reinforces the seismic performance by expanding the cross-section of the structural body (110, 120) constituting the structure, for the seismic reinforcement to the structural body (110, 120) via a damper 310 is installed to exhibit the energy dissipation capacity by the damper together with the reinforcement strength by the reinforcing body 310, thereby effectively improving the seismic performance.

In the present invention, the damper is primarily a load transfer medium to enable the reinforcement 310 to exert the reinforcement strength and also to act as a secondary damping action to absorb vibration energy. In particular, in the present invention, since the damper is installed as a bonding medium between the structural bodies 110 and 120 and the reinforcement 310, the damper does not occupy a large installation space, thereby not significantly impairing the space availability of the structure. In the present invention, the damper is applied to the steel damper 210 alone, or the steel damper 210 and the friction damper 220 are applied together.

2 is a first embodiment of the seismic reinforcing structure according to the present invention, the steel damper 210 and the friction damper 220 is applied at the same time while the slit type (Fig. 2 (b)) or strip as the steel damper 210 The damping plate 212 of the type (FIG. 2 (c)) is applied.

Specifically, the seismic reinforcing structure according to the first embodiment of FIG. 2 includes: structural bodies 110 and 120; A reinforcement body 310 having both ends fixed to the structural bodies 110 and 120 while facing the structural bodies 110 and 120; A steel damper 210 fixedly installed on the structural bodies 110 and 120 between the structural bodies 110 and 120 and the reinforcement 310; And a friction damper 220 installed and fixed to the steel damper 210 while being connected to the steel damper 210 between the steel damper 210 and the reinforcement 310. Here, the steel damper 210 and the friction damper 220, the first flange plate 211 is fixed to the structural body (110, 120); A second flange plate 221 spaced apart from the first flange plate 211; Is installed to connect between the first flange plate 211 and the second flange plate 221, provided as a slit plate or strip plate is fixed to both the first flange plate 211 and the second flange plate 221 Damping plate 212; And a friction pad 222 installed to face the second flange plate 221. The reinforcement body 310 includes the second flange plate 221 and the slot hole with the friction pad 222 interposed therebetween. The bolt B1 is coupled via B2.

According to the above configuration, when the horizontal force is applied to the structural bodies 110 and 120 by the earthquake load, the load is transferred to the reinforcement 310 via the damper, and energy is dissipated by the damper. . In the damper, the friction damper 220 behaves in such a manner that the friction pad 222 absorbs the displacement caused by the slot hole B2, and the steel damper 210 behaves in such a manner that the damping plate 212 plastically deforms. do.

Figure 2 illustrates the seismic reinforcement structure of the vertical structure 110 in the reinforced concrete structure, even when the seismic reinforcement of the horizontal structure 120 is applied in the same manner (vertical structure and horizontal structure in Figure 2). In the reinforced concrete structure, the structural bodies 110 and 120 are vertical structures 110 (pillars and walls) and upper and lower horizontal structures 120 (beams and slabs), and the reinforcement 310 is provided as a steel frame to While facing the vertical structure 110 is fixed to the upper and lower horizontal structure 120 of the structural body. The steel damper 210 and the friction damper 220 are installed between the vertical structure 110 and the reinforcement 310 of the structural body. The steel frame for the reinforcement 310 is suitable for the H-shaped steel, in this case, the end plate 312 is fixed to the structural body (110, 120) by joining both ends to the reinforcement stiffener 311 in the middle of the reinforcement do. At this time, the reinforcement stiffener 311 is installed to be connected to the damping plate 212 of the steel damper to facilitate the load transmission. The damping plate 212 of the steel damper may be installed to be inclined with the first flange plate 211 to correspond to a horizontal force as well as a vertical force.

Meanwhile, the reinforcement body 310 and the first flange plate 211 of the steel damper may be fixedly installed on the structure main bodies 110 and 120 in various ways. Preferably, the reinforcement 310 and the steel damper may be fixed to the structure main bodies 110 and 120. By fixing and filling the gap between the fillers (F2, non-shrink mortar, high-performance injection agent, etc.) it can be integrated with the structural body (110, 120). Alternatively, instead of the filler, it may be fixed with a chemical anchor (F1) while installing an elastic insulation material, but the elastic insulation material is installed without any gap while flexibly responding, contributing to securing insulation performance and contributing to absorbing the supporting load. After fixing with the chemical anchor (F1) to cover the anchor cap to protect the chemical anchor (F1).

3 is a second embodiment of the seismic reinforcing structure according to the present invention, the steel damper 210 and the friction damper 220 is applied at the same time while the damping plate 212 of the hinge (H) type to the steel damper 210 Is an example of applying. The second embodiment is generally the same as the first embodiment described above, and there is a difference in the installation structure of the damping plate 212 of the steel damper. In the second embodiment, the damping plate 212 is connected between the first flange plate 211 and the second flange plate 221 while the first flange plate 211 and the second flange plate 221 and the hinge (H) To combine. As a result, the steel damper 210 behaves in such a manner that the damping plate 212 is rotationally deformed by the hinge H. Meanwhile, in FIG. 3, the reinforcing member 310 is provided as the inclined member, and the friction damper 220 is also inclined, and the damping plate 212 of the steel damper is also inclined. This type of installation is performed by the damping plate 212. It is advantageous for load transfer and rotation of the hinge (H).

4 is a third embodiment of the seismic reinforcing structure according to the present invention, an example in which a square steel frame is joined to an opening via a steel damper 210. Specifically, the seismic reinforcing structure according to the third embodiment of FIG. 4 includes: structural bodies 110 and 120 forming openings surrounded by vertical structures 110 and upper and lower horizontal structures 120 on both sides; Reinforcing body 310 is installed in a rectangular frame structure by the steel frame member while facing the structural body (110, 120); The steel damper 210 is installed between the structural body (110, 120) and the reinforcement body 310, and is configured to include a seismic strength by the reinforcement 310 and the energy dissipation by the steel damper 210 seismic It becomes a structure to be reinforced. Here, the steel damper 210, the first flange plate 211 is installed and fixed facing the structural body (110, 120); Is installed to connect between the first flange plate 211 and the reinforcement 310, provided as a slit plate or strip plate, both ends are fixed to the first flange plate 211 and the reinforcement 310, or both ends are made 1 flange plate 211 and the damping plate 212 is installed in the hinge (H) coupled to the reinforcement 310; is configured to include. 4 is an example of the damping plate 212 is provided as a slit plate or strip plate is fixed while connecting between the first flange plate 211 and the reinforcement 310 by the H-beam, the damping plate 212 is hinged coupling If it is applied in the same manner as in FIG. According to this configuration, in the third embodiment, when a horizontal force due to an earthquake load or the like is applied to the structural bodies 110 and 120, energy is dissipated while the damping plate 212 of the steel damper is plastically deformed. In the third embodiment, the damping plate 212 of the steel damper may be installed to be inclined with the first flange plate 211 to cope with not only horizontal force but also vertical force.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the present invention is not limited to the above-described exemplary embodiments, and various modifications, additions and substitutions may be made without departing from the scope of the present invention. And the scope of the present invention is defined by the appended claims.

110: structure body (vertical structure)
120: structure body (horizontal structure)
210: steel damper
211: first flange plate
212 damping plate
220: friction damper
221: second flange plate
222: friction pad
310: reinforcement
311: Stiffener
312: endplate
F1: anchor
F2: Filler
B1: bolt
B2: Slot Hole
H: hinge

Claims (5)

delete As an earthquake-resistant reinforcement structure in which the reinforcement body 310 is bonded to the structure main bodies 110 and 120 and seismic-reinforced,
Structural bodies 110 and 120;
A reinforcement body 310 fixedly installed at both ends of the structure body 110 and 120 while facing the structure body 110 and 120 apart from each other;
Steel damper 210 is fixed to the structural body (110, 120) between the structural body (110, 120) and the spaced apart facing portion of the reinforcement (310);
A friction damper 220 installed and fixed to the reinforcement 310 while being connected to the steel damper 210 between the structural bodies 110 and 120 and spaced apart facing portions of the reinforcement 310;
It is configured to include, reinforced by the strength of the reinforcement body 310, and seismic reinforced by the energy dissipation by the steel damper 210 and the friction damper 220,
The steel damper 210 and the friction damper 220,
A first flange plate 211 fixed to the structural bodies 110 and 120;
A second flange plate 221 spaced apart from the first flange plate 211;
It is installed to connect between the first flange plate 211 and the second flange plate 221, it is provided as a slit plate or strip plate, both ends fixedly installed in the first flange plate 211 and the second flange plate 221 Alternatively, both ends of the damping plate 212 is installed by the hinge (H) coupled to the first flange plate 211 and the second flange plate 221;
And a friction pad 222 installed to face the second flange plate 221.
The reinforcement 310 of the structure by damper bonding, characterized in that the bolt (B1) is coupled through the second flange plate 221 and the slot hole (B2) with the friction pad 222 therebetween. Seismic reinforcement structure.
3. The method of claim 2,
The structural bodies 110 and 120 are reinforced concrete structures and include a vertical structure 110 and upper and lower horizontal structures 120.
The reinforcement 310 is provided as a steel frame and is fixed to the upper and lower horizontal structures 120 of the structural body while facing the vertical structure 110 of the structural body by an anchor,
The steel damper 210 and the friction damper 220, the seismic reinforcement structure of the structure by the damper bonding, characterized in that installed between the vertical structure 110 and the reinforcement 310 of the structural body.
delete 3. The method according to claim 2 or 3,
The damping plate 212, the seismic reinforcement structure of the structure by damper bonding, characterized in that installed inclined with the first flange plate (211).
KR1020130085310A 2013-07-19 2013-07-19 Seismic retrofit structures by damper joint KR101368312B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101867074B1 (en) 2018-01-05 2018-07-23 (주)플랜트존 Seismic strengthening structure of pilotty structure building
KR20180138389A (en) * 2017-06-21 2018-12-31 씨엠알기술연구원(주) Aseismatic Reinforcement Double Steel Frame with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR20180138385A (en) * 2017-06-21 2018-12-31 박상태 Aseismatic Reinforcement Device with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR101944216B1 (en) * 2018-06-25 2019-01-30 오태환 Seismic resistant reinforcement assembly for building
KR101921864B1 (en) * 2018-05-14 2019-02-13 오태환 Seismic resistant reinforcement assembly for building
KR102298959B1 (en) 2020-12-15 2021-09-06 박일수 An earthquake-proof and impact-proof apparatus for window frames

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110018282A (en) * 2010-09-20 2011-02-23 김영갑 Double steel frame earthquake-proof device
KR20110076645A (en) * 2009-12-29 2011-07-06 주식회사 포스코 Outrigger connection apparatus
KR101278613B1 (en) * 2012-11-29 2013-06-25 비코비엔주식회사 Seismic retrofit of building structures by fracture of pin-joint

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110076645A (en) * 2009-12-29 2011-07-06 주식회사 포스코 Outrigger connection apparatus
KR20110018282A (en) * 2010-09-20 2011-02-23 김영갑 Double steel frame earthquake-proof device
KR101278613B1 (en) * 2012-11-29 2013-06-25 비코비엔주식회사 Seismic retrofit of building structures by fracture of pin-joint

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180138389A (en) * 2017-06-21 2018-12-31 씨엠알기술연구원(주) Aseismatic Reinforcement Double Steel Frame with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR20180138385A (en) * 2017-06-21 2018-12-31 박상태 Aseismatic Reinforcement Device with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR102011814B1 (en) * 2017-06-21 2019-08-19 박상태 Aseismatic Reinforcement Device with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR102074251B1 (en) * 2017-06-21 2020-02-06 씨엠알기술연구원(주) Aseismatic Reinforcement Double Steel Frame with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR101867074B1 (en) 2018-01-05 2018-07-23 (주)플랜트존 Seismic strengthening structure of pilotty structure building
KR101921864B1 (en) * 2018-05-14 2019-02-13 오태환 Seismic resistant reinforcement assembly for building
KR101944216B1 (en) * 2018-06-25 2019-01-30 오태환 Seismic resistant reinforcement assembly for building
KR102298959B1 (en) 2020-12-15 2021-09-06 박일수 An earthquake-proof and impact-proof apparatus for window frames

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