KR102162490B1

KR102162490B1 - Sliding seismic isolator

Info

Publication number: KR102162490B1
Application number: KR1020200008146A
Authority: KR
Inventors: 조영철; 방인석; 박태현; 홍현석; 조충영
Original assignee: 주식회사 에스코알티에스; (주)반디컨설턴트
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-10-06

Abstract

The present invention relates to a pendulum-type sliding vibration isolation apparatus which reduces the size in comparison to a conventional technique, is advantageous in securing the edge distance of a bridge post, eliminates or minimizes the number of components and the area of a spherical portion, easily attaches a slip member, and reduces concern for attachment defects. The sliding vibration isolation apparatus comprises: a first groove member having a first concave cylindrical groove with a first concave cylindrical surface curved in a first radius of curvature in a direction perpendicular to a bridge; a second groove member having a second concave cylindrical groove with a second concave cylindrical surface facing the first concave cylindrical surface and being curved in a second radius of curvature larger than the first radius of curvature in a direction perpendicular to the bridge; and a slide mechanism having a first convex unit having a first convex cylindrical surface of the same radius of curvature as the first concave cylindrical surface on one surface thereof, and a second convex unit having a second convex cylindrical surface of the same radius of curvature as the second concave cylindrical surface on the surface opposite to the first convex unit.

Description

Sliding seismic isolator

본 발명은 면진장치의 개선에 대한 것으로, 특히 펜듈럼 타입(pendulum type)의 슬라이딩 면진장치의 개선에 관한 것이다.The present invention relates to an improvement of a seismic isolator, and more particularly, to an improvement of a pendulum-type sliding seismic isolator.

일반적으로, 펜듈럼 타입의 슬라이딩 면진장치는 상부부재와 하부부재에 오목구면을 각각 형성하고 상부부재와 하부부재 사이에 상면과 하면에 마주보는 오목구면에 대응하는 볼록구면을 가지는 슬라이딩 블록을 설치하여 지진, 풍하중, 차량의 시동하중 또는 제동하중, 온도변화, 크리프, 건조수축 등에 의한 신축에 의해 수평하중이 작용할 때 슬라이딩 블록과 상부구조물이 진자운동을 할 수 있도록 하고, 진자운동 시 슬라이딩블록과 상부부재 및/또는 하부부재 간의 오목구면 및 볼록구면의 마찰을 통해 지진력을 감소함과 아울러 구면에 작용하는 중력을 통한 복원력을 제공할 수 있도록 한 교량받침이다.In general, in the pendulum type sliding seismic isolator, a sliding block having a concave spherical surface corresponding to a concave spherical surface facing the upper and lower surfaces is installed between the upper and lower members, and a sliding block is installed between the upper and lower members. , When horizontal load is applied by expansion and contraction due to wind load, vehicle starting load or braking load, temperature change, creep, drying contraction, etc., the sliding block and the upper structure allow the pendulum movement, and during the pendulum movement, the sliding block and the upper member And/or a bridge support capable of providing a restoring force through gravity acting on the spherical surface while reducing seismic force through friction between the concave and convex spherical surfaces between the lower members.

이러한 펜듈럼 타입의 면진장치의 일례로는 공개번호 20-2019-0002725호(고안의 명칭: 건축구조물용 펜듈럼 면진장치, 고안자: 박재원)의 공개실용신안공보에 개시된 것이 있다.An example of such a pendulum-type seismic isolator is disclosed in Publication No. 20-2019-0002725 (name of the design: pendulum seismic isolator for building structures, designer: Jaewon Park).

위와 같은 종래의 펜듈럼 타입의 슬라이딩 면진장치가 설치된 교량에서 상부구조물에 교축방향의 변위가 발생되면 진자운동으로 인해 이웃하는 상부구조물과의 사이에 단차가 발생하게 된다. 이러한 단차의 크기를 가능한 한 줄이기 위해 오목구면의 곡률반경을 예를 들면, 4m 등과 같이 매우 크게 해야 한다. 특히, 장대교량의 경우 교량상판 등의 상부구조물의 길이가 매우 길어서 오목곡면이 설치되는 상부부재와 하부부재 중 하나는 매우 큰 크기로 만들어야 한다.In a bridge in which the conventional pendulum type sliding seismic isolator is installed as described above, when displacement in the direction of the axle is generated in the upper structure, a step is generated between the adjacent upper structure due to the pendulum motion. In order to reduce the size of this step as much as possible, the radius of curvature of the concave spherical surface should be very large, such as 4m. In particular, in the case of a long bridge, the length of the upper structure such as the bridge top plate is very long, so one of the upper member and the lower member on which the concave curved surface is installed must be made of a very large size.

종래 펜듈럼 타입의 면진장치는 상부부재와 하부부재의 넓은 면적에 걸쳐서 오목구면을 각각 형성해야 하기 때문에 정밀하게 제작하기가 매우 어렵고, 슬라이딩블록의 상하 양면에도 볼록구면을 각각 형성해야하기 때문에 제작하기가 어렵다.Conventional pendulum-type seismic isolators are very difficult to manufacture precisely because concave spherical surfaces must be formed over a large area of the upper and lower members, and convex spherical surfaces must be formed on both upper and lower sides of the sliding block. it's difficult.

특히 접촉면에는 미끄럼 마찰재(이하, "미끄럼재"라고 칭함)를 부착해야 하는데, 넓은 면적의 오목구면에 스테인리스 스틸판 등의 미끄럼재를 구면으로 부착하기가 어렵고 슬라이딩 블록의 양측 볼록구면에도 PTFE 등으로 된 미끄럼재를 부착하기도 어렵다. 구면으로 된 표면에 미끄럼재를 부착하는 과정에서 부착 불량이 발생될 확률이 높다.In particular, a sliding friction material (hereinafter referred to as "sliding material") must be attached to the contact surface, but it is difficult to attach a sliding material such as stainless steel plate to the concave surface of a large area with a spherical surface. It is also difficult to attach the old sliding material. In the process of attaching the sliding material to the spherical surface, there is a high probability that adhesion failure occurs.

오목구면과 볼록구면에 크롬도금을 할 수는 있으나, 넓은 면적에 걸쳐서 구면에 크롬도금하기가 매우 까다롭고, 크롬도금층의 두께를 100㎛ 또는 그 이상의 두께로 도금을 해야 하는데, 도금 단가가 매우 비싸다. 구면에 크롬도금층을 형성 하더라도 상부구조물의 큰 하중에 의해 도금층이 벗겨져서 미끄럼 접촉면에 녹이 쓸게 되는 문제도 있다. It is possible to chromium plating on the concave and convex spheres, but it is very difficult to chromium plating on the spherical surface over a large area, and the thickness of the chromium plating layer must be plated with a thickness of 100㎛ or more, but the plating unit is very expensive. . Even if the chromium plating layer is formed on the spherical surface, there is also a problem that the plating layer is peeled off by a large load of the upper structure and rust is used on the sliding contact surface.

또한, 종래의 펜듈럼 타입의 면진장치가 설치된 교량에서는 교축방향의 변위를 받아주는 오목곡면의 곡률반경이 커서 복원력이 작다보니 풍하중, 차량의 시동하중, 제동하중 등의 상시의 동하중에 의한 변위가 발생하더라도 복원되지 않고, 상시의 동하중에 의한 변위가 반복되면 이웃하는 상부구조물과의 사이에 큰 단차가 발생하는 문제도 있다.In addition, in a bridge with a conventional pendulum type seismic isolator, the radius of curvature of the concave surface that receives the displacement in the bridge axis direction is so large that the resilience is small, so even if displacement occurs due to constant dynamic loads such as wind load, vehicle starting load, and braking load. If the displacement is not restored and the displacement due to the constant dynamic load is repeated, there is a problem that a large step difference occurs between the neighboring upper structures.

또한, 오목구면이 형성되는 대략 정사각형 또는 원형의 하부부재를 가지는 종래의 펜듈럼 타입의 슬라이딩 면진장치는 교각에 설치 시 충분한 연단거리 확보를 위해 교각을 큰 단면적을 가지도록 만들어야 하는 문제도 있다.In addition, the conventional pendulum type sliding seismic isolator having a substantially square or circular lower member having a concave spherical surface has a problem in that the pier must have a large cross-sectional area to secure a sufficient edge distance when installed on the pier.

본 발명의 목적은 크기를 기존의 것에 비해 줄임과 아울러 상부부재와 하부부재의 크기 비율을 최적화하고 교각에 설치 시 연단거리 확보에 유리한 개선된 펜듈럼 타입 슬라이딩 면진장치를 제공하는데 있다.It is an object of the present invention to provide an improved pendulum type sliding seismic isolator that is advantageous in reducing the size compared to the conventional one, optimizing the size ratio of the upper member and the lower member, and securing the edge distance when installed on a pier.

본 발명의 다른 목적은 만들기 쉬운 구조의 펜듈럼 타입 슬라이딩 면진장치를 제공하는데 있다.Another object of the present invention is to provide a pendulum type sliding seismic isolator having an easy-to-make structure.

본 발명의 또 다른 목적은 구면의 면적을 최소화하거나 없앰으로써 스테인리스 스틸판과 PTFE 등의 미끄럼재를 부착하기가 쉽고 부착불량의 우려가 적은 펜듈럼 타입 슬라이딩 면진장치를 제공하는데 있다.Another object of the present invention is to provide a pendulum-type sliding seismic isolator that is easy to attach a sliding material such as a stainless steel plate and PTFE by minimizing or eliminating the area of a spherical surface and has less fear of poor adhesion.

본 발명의 또 다른 목적은 구면을 최소화함으로써 스테인리스 스틸판과 PTFE 등의 미끄럼재 부착이 용이하고 미끄럼재 부착에 따른 불량의 우려가 적은 펜듈럼 타입 슬라이딩 면진장치를 제공하는데 있다.Another object of the present invention is to provide a pendulum-type sliding seismic isolator that is easy to attach a sliding material such as a stainless steel plate and PTFE by minimizing a spherical surface, and that there is little concern of defects due to the attachment of the sliding material.

본 발명의 또 다른 목적은 교축방향 및 교축직각방향으로 충분한 복원력을 제공할 수 있는 펜듈럼 타입 슬라이딩 면진장치를 제공하는데 있다.Another object of the present invention is to provide a pendulum type sliding seismic isolator capable of providing a sufficient restoring force in the throttling direction and the throttling direction perpendicular to the throttling direction.

본 발명에 따른 슬라이딩 면진장치는 교량의 상부구조물과 하부구조물 사이에 설치되어 상기 상부구조물의 교축직각방향의 변위와 교축방향의 변위를 허용하면서 상기 상부구조물의 하중을 상기 하부구조물에 지지하기 위한 슬라이딩 면진장치에 있어서, 상기 교축직각방향으로 제1곡률반경으로 굴곡되고 상기 교축방향으로 동일선상에 배치된 부분은 같은 높이로 배치되는 제1오목원통표면을 가지는 제1오목원통면홈이 형성되고 상기 교축직각방향으로 설치되는 제1홈부재; 상기 교축방향으로 상기 제1곡률반경보다 큰 제2곡률반경으로 굴곡되고 상기 교축직각방향으로 동일선상에 배치되는 부분은 같은 높이로 배치되고 상기 제1오목원통표면과 마주보는 제2오목원통표면을 가지는 제2오목원통면홈이 형성되고 상기 교축방향으로 설치되는 제2홈부재; 및 상기 제1홈부재와 상기 제2홈부재 사이에 배치되고, 일면에 상기 제1오목원통표면에 면접촉하며 슬라이딩할 수 있도록 상기 제1오목원통표면과 같은 곡률반경의 제1볼록원통표면을 가지는 제1볼록부가 구비되고, 상기 제1볼록부의 반대면에 상기 제2오목원통표면에 면접촉하며 슬라이딩할 수 있도록 상기 제2오목원통표면과 같은 곡률반경의 제2볼록원통표면을 가지며 상기 제1볼록부에 대해 회전을 허용하는 제2볼록부가 구비된 슬라이드기구를 포함하고, 상기 제2오목원통표면은 상기 제1오목원통표면보다 길게 형성되고, 상기 제1홈부재는 상기 교축방향보다는 상기 교축직각방향으로 길게 형성되어 상기 제1볼록부에 대해 상기 교축직각방향으로만 상대적인 이동을 허용하고, 상기 제2홈부재는 상기 교축직각방향보다는 상기 교축방향으로 길게 형성되어 상기 제2볼록부에 대해 상기 교축방향으로만 상대적인 이동을 허용하도록 형성되고, 상기 제1곡률반경은 250㎜이상이고 1000mm 보다는 작고, 상기 제2곡률반경은 1500㎜ 이상이고,
상기 슬라이드기구의 상기 제1볼록부와 상기 제2볼록부는, ⅰ) 상기 제1볼록부와 상기 제2볼록부가 상호간에 경사를 허용하도록 마주보는 면에 각각 형성된 구면홈과 상기 구면홈에 회전 가능하게 결합되는 볼록구면을 통해 서로 결합되는 것; ⅱ) 상기 슬라이드기구는 상기 제1볼록부와 상기 제2볼록부 사이에 배치되고 상면과 하면에 볼록구면이 각각 형성된 구면블록을 구비하고, 상기 제1볼록부와 상기 제2볼록부가 상호간에 경사를 허용하도록 상기 볼록구면과 마주보는 부분에 상기 볼록구면에 회전 가능하게 결합되는 구면홈이 각각 형성되는 것; ⅲ) 상기 슬라이드기구는 상기 제1볼록부와 상기 제2볼록부 사이에 배치된 탄성부재 및 상기 탄성부재를 통과하여 일단은 상기 제1볼록부와 상기 제2볼록부 중 어느 하나에 고정되고 타단은 상기 제1볼록부와 상기 제2볼록부 중 나머지 하나에 형성된 홈에 결합되어 상기 제1볼록부와 상기 제2불록부 상호간의 경사를 허용하기 위한 회전은 허용하면서 상기 제1볼록부가 상기 제2볼록부에 대해 측방으로 분리되는 것을 방지하는 전단핀을 구비하여 구성되는 것; 중의 어느 하나에 의해 상호 회전 가능하게 결합되는 것을 포함하는 구성을 한다.The sliding seismic isolator according to the present invention is installed between the upper structure and the lower structure of the bridge to allow the displacement of the upper structure in the direction perpendicular to the bridge axis and the displacement in the direction of the bridge axis while supporting the load of the upper structure to the lower structure. In the seismic isolator, a first concave cylindrical surface groove having a first concave cylindrical surface disposed at the same height is formed at a portion bent at a first radius of curvature in a direction perpendicular to the bridge axis and arranged on the same line in the axle axis direction, and A first groove member installed in a right angle direction; A portion bent in a second radius of curvature larger than the first radius of curvature in the throttling direction and disposed on the same line in the throttling direction perpendicular to the throttling axis is disposed at the same height and has a second concave cylindrical surface facing the first concave cylindrical surface. A second groove member having a second concave cylindrical surface groove formed therein and installed in the throttling direction; And a first convex cylindrical surface having the same radius of curvature as the first concave cylindrical surface so that it is disposed between the first groove member and the second groove member and is in surface contact with the first concave cylindrical surface to slide. The branch is provided with a first convex portion, and has a second convex cylindrical surface having the same radius of curvature as the second concave cylindrical surface so that the second concave cylindrical surface can slide while being in surface contact with the opposite surface of the first convex portion. And a slide mechanism provided with a second convex portion that allows rotation with respect to the first convex portion, and the second concave cylindrical surface is formed longer than the first concave cylindrical surface, and the first groove member It is formed elongated in a perpendicular direction of the transverse axis to allow relative movement only in the direction of the transverse axis with respect to the first convex portion, and the second groove member is formed longer in the direction of the transverse axis than in the direction perpendicular to the transverse axis. The first radius of curvature is 250 mm or more and less than 1000 mm, and the second radius of curvature is 1500 mm or more.
The first convex portion and the second convex portion of the slide mechanism include: i) the first convex portion and the second convex portion are rotatable in the spherical groove and the spherical groove respectively formed on a surface facing each other to allow inclination Being joined to each other through convex spheres that are joined together; Ii) The slide mechanism includes a spherical block disposed between the first convex portion and the second convex portion and has a convex spherical surface on an upper surface and a lower surface thereof, and the first convex portion and the second convex portion are inclined to each other. Each of the spherical grooves rotatably coupled to the convex spherical surface is formed at a portion facing the convex spherical surface so as to allow for; Iii) the slide mechanism has an elastic member disposed between the first convex portion and the second convex portion and passes through the elastic member, and one end is fixed to one of the first convex portion and the second convex portion, and the other end Is coupled to a groove formed in the remaining one of the first convex portion and the second convex portion to allow rotation to allow an inclination between the first convex portion and the second convex portion, while the first convex portion is To be configured with a shear pin that prevents the two convex portions from being separated laterally; It has a configuration that includes being rotatably coupled to each other by any one of.

때에 따라, 본 발명에 따른 슬라이딩 면진장치는 교량의 상부구조물과 하부구조물 사이에 설치되어 상기 상부구조물의 교축직각방향의 변위와 교축방향의 변위를 허용하면서 상기 상부구조물의 하중을 상기 하부구조물에 지지하기 위한 슬라이딩 면진장치에 있어서, 상기 교축직각방향으로 제1곡률반경으로 굴곡되고 상기 교축방향으로 동일선상에 배치된 부분은 같은 높이로 배치되는 제1오목원통표면을 가지는 제1오목원통면홈이 형성되고 상기 교축직각방향으로 설치되는 제1홈부재; 상기 제1오목원통표면과 마주보는 평면을 가지는 평면홈이 형성되고 상기 교축방향으로 설치되는 제2홈부재; 및 상기 제1홈부재와 상기 제2홈부재 사이에 배치되고, 일면에 상기 제1오목원통표면에 면접촉하며 슬라이딩할 수 있도록 상기 제1오목원통표면과 같은 곡률반경의 제1볼록원통표면을 가지는 제1볼록부가 구비되고, 상기 제1볼록부의 반대면에 상기 평면에 면접촉하며 슬라이딩할 수 있도록 평면을 가지며 상기 제1볼록부에 대해 회전을 허용하는 제2볼록부가 구비된 슬라이드기구를 포함하고, 상기 제2홈부재의 상기 평면은 상기 제1오목원통표면보다 길게 형성되고, 상기 제1홈부재는 상기 교축방향보다는 상기 교축직각방향으로 길게 형성되어 상기 제1볼록부에 대해 상기 교축직각방향으로만 상대적인 이동을 허용하고, 상기 제2홈부재는 상기 교축직각방향보다는 상기 교축방향으로 길게 형성되어 상기 제2볼록부에 대해 상기 교축방향으로만 상대적인 이동을 허용하도록 형성되고, 상기 제1곡률반경은 250㎜이상이고 1000mm 보다는 작고, 상기 슬라이드기구의 상기 제1볼록부와 상기 제2볼록부는, ⅰ) 상기 제1볼록부와 상기 제2볼록부가 상호간에 경사를 허용하도록 마주보는 면에 각각 형성된 구면홈과 상기 구면홈에 회전 가능하게 결합되는 볼록구면을 통해 서로 결합되는 것; ⅱ) 상기 슬라이드기구는 상기 제1볼록부와 상기 제2볼록부 사이에 배치되고 상면과 하면에 볼록구면이 각각 형성된 구면블록을 구비하고, 상기 제1볼록부와 상기 제2볼록부가 상호간에 경사를 허용하도록 상기 볼록구면과 마주보는 부분에 상기 볼록구면에 회전 가능하게 결합되는 구면홈이 각각 형성되는 것; ⅲ) 상기 슬라이드기구는 상기 제1볼록부와 상기 제2볼록부 사이에 배치된 탄성부재 및 상기 탄성부재를 통과하여 일단은 상기 제1볼록부와 상기 제2볼록부 중 어느 하나에 고정되고 타단은 상기 제1볼록부와 상기 제2볼록부 중 나머지 하나에 형성된 홈에 결합되어 상기 제1볼록부와 상기 제2불록부 상호간의 경사를 허용하기 위한 회전은 허용하면서 상기 제1볼록부가 상기 제2볼록부에 대해 측방으로 분리되는 것을 방지하는 전단핀을 구비하여 구성되는 것; 중의 어느 하나에 의해 상호 회전 가능하게 결합되는 것을 포함하는 구성을 할 수 있다.Occasionally, the sliding seismic isolator according to the present invention is installed between the upper structure and the lower structure of the bridge to support the load of the upper structure to the lower structure while allowing the displacement in the direction perpendicular to the bridge axis and the displacement in the bridge axis direction of the upper structure. In the sliding seismic isolator for seismic operation, a first concave cylindrical surface groove having a first concave cylindrical surface disposed at the same height is formed at a portion bent at a first radius of curvature in a direction perpendicular to the axle axis and disposed on the same line in the axle axis direction. A first groove member installed in a direction perpendicular to the axle axis; A second groove member having a planar groove having a plane facing the first concave cylindrical surface and installed in the throttling direction; And a first convex cylindrical surface having the same radius of curvature as the first concave cylindrical surface so that it is disposed between the first groove member and the second groove member and is in surface contact with the first concave cylindrical surface to slide. The branch includes a slide mechanism having a first convex portion, a plane contacting the plane on an opposite surface of the first convex portion and sliding with respect to the first convex portion, and having a second convex portion allowing rotation with respect to the first convex portion. And, the plane of the second groove member is formed longer than the first concave cylindrical surface, and the first groove member is formed longer in a direction perpendicular to the bridge axis than in the direction of the bridge axis so as to be perpendicular to the first convex portion. The second groove member is formed to allow relative movement only in a direction, and the second groove member is formed to be longer in the transverse axis direction than in the transverse axis direction to allow relative movement only in the transverse direction with respect to the second convex portion, and the first The radius of curvature is 250 mm or more and less than 1000 mm, and the first convex portion and the second convex portion of the slide mechanism include: i) the first convex portion and the second convex portion are on a surface facing each other so as to allow inclination. Coupled to each other through a spherical groove respectively formed and a convex spherical surface rotatably coupled to the spherical groove; Ii) The slide mechanism includes a spherical block disposed between the first convex portion and the second convex portion and has a convex spherical surface on an upper surface and a lower surface thereof, and the first convex portion and the second convex portion are inclined to each other. Each of the spherical grooves rotatably coupled to the convex spherical surface is formed at a portion facing the convex spherical surface so as to allow for; Iii) the slide mechanism has an elastic member disposed between the first convex portion and the second convex portion and passes through the elastic member, and one end is fixed to one of the first convex portion and the second convex portion, and the other end Is coupled to a groove formed in the remaining one of the first convex portion and the second convex portion to allow rotation to allow an inclination between the first convex portion and the second convex portion, while the first convex portion is To be configured with a shear pin that prevents the two convex portions from being separated laterally; It is possible to have a configuration including that which is rotatably coupled to each other by any one of.

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상기 슬라이드기구와 면접촉하는 상기 제1홈부재 및 상기 제2홈부재의 표면에 제1미끄럼재가 각각 설치되고, 상기 슬라이드기구에는 상기 제1미끄럼재에 면접촉하며 슬라이딩하는 제2미끄럼재가 각각 설치되는 것이 바람직하다.A first sliding member is installed on the surfaces of the first groove member and the second groove member in surface contact with the slide mechanism, and a second sliding member that slides in surface contact with the first sliding member is installed on the slide mechanism. It is desirable to be.

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상기 교축방향의 상기 제2홈부재의 양측 가장자리에 상기 제1홈부재를 향해 돌출된 돌출부가 설치되고, 상기 돌출부와 상기 제2볼록부 사이에 탄성복원기구가 설치될 수 있다. 탄성복원기구가 설치되지 않는 경우, 상기 교축방향의 상기 제2홈부재의 양측 가장자리에 상기 제1홈부재를 향해 돌출된 돌출부는 형성되지 않을 수 있다.A protrusion protruding toward the first groove member may be installed at both edges of the second groove member in the throttling direction, and an elastic restoration mechanism may be installed between the protrusion part and the second convex part. When the elastic restoration mechanism is not installed, protrusions protruding toward the first groove member may not be formed at both edges of the second groove member in the throttling direction.

상기 탄성복원기구는 상기 돌출부와 상기 제2볼록부 중 적어도 하나에 수평으로 결합되는 축부재, 상기 축부재의 외주면에 결합되고 상기 돌출부와 상기 제2볼록부 사이에 배치되는 탄성체를 구비하여 구성된 것이 좋다.The elastic restoring mechanism includes a shaft member horizontally coupled to at least one of the protrusion and the second convex portion, and an elastic body coupled to an outer circumferential surface of the shaft member and disposed between the protrusion and the second convex portion. good.

상기 탄성복원기구는, 상기 축부재의 안쪽 단부에 설치되는 선압축판 및 상기 돌출부를 관통하여 상기 돌출부 바깥으로 돌출되는 상기 축부재의 외주면에 나사결합되는 너트를 구비하여 상기 탄성체를 선압축할 수 있도록 된 것이 바람직하다.The elastic restoration mechanism may include a pre-compression plate installed at an inner end of the shaft member and a nut screwed to an outer circumferential surface of the shaft member that penetrates through the protrusion and protrudes out of the protrusion to pre-compress the elastic body. It is desirable to have.

상기 제2볼록부에 수평방향으로 안내구멍이 형성되고, 상기 탄성복원기구는 상기 선압축판에서 내측으로 돌출되어 상기 안내구멍에 이동 가능하게 삽입되는 안내돌기를 가질 수 있다.A guide hole is formed in the horizontal direction in the second convex portion, and the elastic restoration mechanism may have a guide protrusion which is movably inserted into the guide hole by protruding inward from the linear compression plate.

때에 따라, 상기 탄성복원기구는, 상기 제2볼록부의 측면을 지지하며 상기 제2볼록부에서 바깥으로 갈수록 높이가 점점 낮아지며 안쪽에서 바깥쪽으로 슬롯이 형성된 제1쐐기부재, 상기 슬롯을 통해 상기 제2홈부재에 결합된 로드, 상기 로드에 결합되고 안쪽에서 바깥으로 갈수록 높이가 점점 높아지며 상기 제1쐐기부재에 면접촉된 제2쐐기부재, 상기 로드의 외주면에 결합된 쐐기부재가압 탄성체와 상기 쐐기부재가압 탄성체를 상기 제2쐐기부재를 향해 가압할 수 있도록 하기 위한 가압판 및 상기 로드에 나사결합되어 상기 가압판을 통해 상기 쐐기부재가압 탄성체를 상기 제2쐐기부재를 향해 가압하는 너트를 구비하여 구성될 수 있다.In some cases, the elastic restoration mechanism, a first wedge member that supports a side surface of the second convex portion and gradually decreases in height toward the outside from the second convex portion and has a slot formed from the inside to the outside, and the second A rod coupled to a groove member, a second wedge member coupled to the rod and gradually increasing in height from the inside to the outside and in surface contact with the first wedge member, a wedge member pressing elastic body coupled to the outer circumferential surface of the rod and the wedge member It may be configured to include a pressing plate for pressing the pressing elastic body toward the second wedge member and a nut that is screwed to the rod and presses the wedge member pressing elastic body toward the second wedge member through the pressing plate. have.

상기 제1쐐기부재의 표면에는 제1미끄럼재가 부착되고, 상기 제1쐐기부재와 상기 제2홈부재의 사이 및 상기 제2쐐기부재의 표면에 제2미끄럼재가 설치된 것이 바람직하다.It is preferable that a first sliding member is attached to the surface of the first wedge member, and a second sliding member is installed between the first wedge member and the second groove member and on the surface of the second wedge member.

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본 발명에 따르면, 기존의 것에 비해 크기를 줄일 수 있고, 상부부재와 하부부재의 크기 비율을 최적화하면서 교각의 연단거리 확보에 유리하다.According to the present invention, the size can be reduced compared to the conventional one, and it is advantageous in securing the edge distance of the pier while optimizing the size ratio of the upper member and the lower member.

본 발명에 따르면 구면으로 형성되는 부분의 면적을 줄이고 구면이 형성되는 부품의 개수를 최소화하거나 없앰으로써 펜듈럼 타입 슬라이딩 면진장치의 제조단가를 획기적으로 낮출 수 있다.According to the present invention, the manufacturing cost of the pendulum type sliding seismic isolator can be drastically lowered by reducing the area of the part formed as a spherical surface and minimizing or eliminating the number of parts in which the spherical surface is formed.

특히, 본 발명에 따르면 스테인리스 스틸판과 PTFE 등의 미끄럼재를 부착하기가 쉽고 부착불량의 우려가 적다.In particular, according to the present invention, it is easy to attach a sliding material such as a stainless steel plate and PTFE, and there is little fear of poor adhesion.

본 발명에 따르면 최적화된 교축방향으로 배치되는 원통면의 곡률반경과 교축직각방향으로 배치되는 원통면의 곡률반경을 가지는 펜듈럼 타입 슬라이딩 면진장치를 얻을 수 있다.According to the present invention, it is possible to obtain a pendulum-type sliding seismic isolator having a radius of curvature of a cylindrical surface disposed in an optimized throttling direction and a radius of curvature of a cylindrical surface disposed in a direction perpendicular to the throttling axis.

도 1은 본 발명에 따른 슬라이딩 면진장치의 조립 사시도,
도 2는 도 1 슬라이딩 면진장치의 분리사시도,
도 3은 도 1의 I-I에 따른 단면도,
도 4는 도 1의 J-J에 따른 단면도,
도 5는 슬라이드기구의 변형 예를 나타낸 횡단면도,
도 6은 도 5는 슬라이드기구의 종단면도,
도 7은 본 발명에 따른 슬라이딩 면진장치의 변형 예를 나타낸 분리사시도,
도 8과 도 9는 본 발명에 따른 슬라이딩 면진장치의 변형 예를 각각 나타낸 반폭단면도,
도 10은 본 발명에 따른 슬라이딩 면진장치의 또 다른 예를 나타낸 반폭단면도,
도 11은 도 10의 K-K에 따른 부분 단면도,
도 12와 도 13은 도 7의 변형 예를 각각 나타낸 단면도이다.1 is an assembled perspective view of a sliding seismic isolator according to the present invention,
2 is an exploded perspective view of the sliding seismic isolator of FIG. 1;
3 is a cross-sectional view taken along II of FIG. 1,
4 is a cross-sectional view taken along JJ in FIG. 1,
5 is a cross-sectional view showing a modified example of the slide mechanism;
6 is a longitudinal sectional view of the slide mechanism in FIG. 5;
7 is an exploded perspective view showing a modified example of the sliding seismic isolator according to the present invention;
8 and 9 are half-width sectional views each showing a modified example of the sliding seismic isolator according to the present invention;
10 is a half-width sectional view showing another example of a sliding seismic isolator according to the present invention;
11 is a partial cross-sectional view taken along KK of FIG. 10,
12 and 13 are cross-sectional views each showing a modified example of FIG. 7.

이하, 첨부된 도면을 참고하여 본 발명의 바람직한 실시 예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 슬라이딩 면진장치의 조립 사시도, 도 2는 도 1 슬라이딩 면진장치의 분리사시도, 도 3은 도 1의 I-I에 따른 단면도, 도 4는 도 1의 J-J에 따른 단면도이다.1 is an assembled perspective view of a sliding seismic isolator according to the present invention, FIG. 2 is an exploded perspective view of the sliding seismic isolator of FIG. 1, FIG. 3 is a cross-sectional view taken along line I-I of FIG. 1, and FIG. 4 is a cross-sectional view taken along J-J of FIG.

도 1 내지 4에 나타낸 바와 같이 본 발명에 따른 슬라이딩 면진장치(100)는 제1홈부재(110)와 제2홈부재(130) 및 제1홈부재(110)와 제2홈부재(130) 사이에 결합되는 슬라이드기구(150)를 구비하여 구성된다.1 to 4, the sliding seismic isolator 100 according to the present invention includes a first groove member 110 and a second groove member 130, and a first groove member 110 and a second groove member 130. It is configured with a slide mechanism 150 coupled therebetween.

도 1 내지 도 4를 참고하면, 제1홈부재(110)는 교량의 교축직각방향으로 설치되는 것으로, 상면부에 형성된 제1오목원통면홈(111)을 가진다. 제1홈부재(110)는 교량에 설치될 때, 바람직하게, 교각 상에 설치되다. 제1오목원통면홈(111)의 바닥면은 교축직각방향으로 제1곡률반경으로 굴곡되고 교축방향으로 동일선상에 배치된 부분은 같은 높이로 배치된 제1오목원통표면(112)으로 형성되어 있다. 제1홈부재(110)의 제1오목원통표면(112)의 양 측부를 따라 측벽(113)이 각각 형성되어 있다. 이러한 제1홈부재(110)는 교량의 상부구조물에 작용하는 풍하중에는 움직이지 않다가 지진 등의 외력에 의해 교량의 상부구조물에 큰 수평력이 작용할 때 교량의 상부구조물이 횡방향으로 즉, 교축직각방향으로 이동 또는 진동하다가 외력이 제거되면 다시 원 위치로 복귀하는 복원력을 제공할 수 있도록 하고, 특히 지진이 발생한 경우에는 교량의 상부구조물이 교축직각방향으로 진동하면서 지진에너지를 소산시키는 역할을 할 수 있도록 하기 위한 것이다.1 to 4, the first groove member 110 is installed in a direction perpendicular to the bridge axis of the bridge, and has a first concave cylindrical groove 111 formed on an upper surface thereof. When the first groove member 110 is installed on a bridge, preferably, it is installed on a pier. The bottom surface of the first concave cylindrical surface groove 111 is bent at a first radius of curvature in a direction perpendicular to the axle axis, and a portion disposed on the same line in the axial direction is formed as a first concave cylindrical surface 112 disposed at the same height. . Side walls 113 are formed along both sides of the first concave cylindrical surface 112 of the first groove member 110, respectively. The first groove member 110 does not move under the wind load acting on the upper structure of the bridge, but when a large horizontal force acts on the upper structure of the bridge due to an external force such as an earthquake, the upper structure of the bridge is transversely, that is, the bridge axis right angle. When the external force is removed while moving or vibrating in the direction, it can provide a restoring force that returns to its original position.In particular, in the case of an earthquake, the upper structure of the bridge vibrates in the direction perpendicular to the bridge axis and dissipates the seismic energy. To be able to.

위와 같은 제1오목원통표면(112)의 제1곡률반경은 교량의 크기나 종류 등에 따라 차이가 있으나 교량의 상부구조물이 교축직각방향으로 변위하였다가 외력이 제거되면 중력에 의해 원위치로 복귀할 수 있는 경사를 가지도록 1000mm 미만의 곡률반경으로 형성되는 것이 바람직하다.The first radius of curvature of the first concave cylindrical surface 112 as described above differs depending on the size or type of the bridge, but the upper structure of the bridge is displaced in the direction perpendicular to the bridge axis, and when the external force is removed, it can be returned to its original position by gravity. It is preferable that it is formed with a radius of curvature of less than 1000mm so as to have a slope.

그 이유는, 일반적으로 교축직각방향의 수평틀림에서 보수를 하지 않아도 되는 상시의 변위 D는 15mm 정도까지이다. 그리고 일반적으로 사용되는 미끄럼재 또는 미끄럼 마찰재의 마찰계수 μ가 0.03 이상인 것이 사용된다. 이 경우, 상시 원위치 복원을 위한 제1오목원통표면(112)의 곡률반경 R은 D/R >μ를 충족시키는 1000mm 미만으로 된다.The reason is that, in general, the constant displacement D, which does not need to be repaired, is up to about 15 mm in the horizontal distortion in the perpendicular direction of the bridge axis. In addition, a generally used sliding material or a sliding friction material having a friction coefficient μ of 0.03 or more is used. In this case, the radius of curvature R of the first concave cylindrical surface 112 for restoring the original position at all times is less than 1000 mm satisfying D/R >μ.

제1오목원통표면(112)의 제1곡률반경의 하한치는 지진 시 교축직각방향의 면진을 위한 최대허용변위에 등에 따라 정해져야 할 것이고 그래서 하한치를 구체적으로 특정하기는 어렵지만, 본 발명이 적절하게 사용될 수 있는 일반 소규모 교량에 사용되는 면진장치의 용량이 100톤 정도이고, 이런 소규모 교량의 경우에도 250㎜ 이상으로 하는 것이 좋다.The lower limit of the first radius of curvature of the first concave cylindrical surface 112 should be determined according to the maximum allowable displacement for seismic isolation in the direction perpendicular to the bridge axis during an earthquake, so it is difficult to specify the lower limit in detail, but the present invention is appropriate. The capacity of the seismic isolator used in general small bridges that can be used is about 100 tons, and even for such small bridges, it is better to set it to 250 mm or more.

바람직하게, 제1오목원통표면(112)과 양 측벽(113)에는 슬라이드기구(150)와 면접촉하는 스테인리스 스틸판 등으로 된 제1미끄럼재(SM1)가 부착된다. 제1미끄럼재(SM1)로는 스테인리스 스틸판 대신 크롬도금에 의한 크롬도금층으로 형성할 수 있다.Preferably, a first sliding member SM1 made of a stainless steel plate or the like in surface contact with the slide mechanism 150 is attached to the first concave cylindrical surface 112 and both side walls 113. The first sliding material SM1 may be formed of a chromium plating layer by chromium plating instead of a stainless steel plate.

제1홈부재(110)는, 바람직하게, 교축방향보다는 교축직각방향으로 길게 형성되어 제1볼록부(151)에 대해 교축직각방향으로만 상대적인 이동을 허용하고, 교축방향으로의 이동을 허용하지 않는다. 이 경우, 제1볼록부(151)는 양측의 측벽(113)의 안내를 받으면서 교축직각방향으로 이동한다.The first groove member 110, preferably, is formed longer in the direction perpendicular to the axle axis than in the direction of the axle axis so as to allow relative movement only in the direction perpendicular to the axis of the first convex portion 151, and does not allow movement in the direction of the axle axis. Does not. In this case, the first convex portion 151 moves in a direction perpendicular to the bridge axis while being guided by the side walls 113 on both sides.

제2홈부재(130)는 교량의 교축방향으로 설치되는 것으로, 제1홈부재(110)와 마주보는 면에 형성된 제2오목원통면홈(131)을 가진다. 제2홈부재(130)는 교량에 설치될 때, 바람직하게, 교량의 상부구조물 저면에 결합된다. 제2오목원통면홈(131)의 바닥면은 바람직하게, 교축방향으로 제1곡률반경보다는 큰 제2곡률반경으로 굴곡되고 교축직각방향으로 동일선상에 배치된 부분은 같은 높이로 배치되는 제2오목원통표면(132)으로 형성된다. 제2오목원통표면(132)은 제1오목원통표면(112)과 마주보고 배치된다.The second groove member 130 is installed in the bridge axis direction and has a second concave cylindrical surface groove 131 formed on a surface facing the first groove member 110. When the second groove member 130 is installed on the bridge, it is preferably coupled to the bottom of the upper structure of the bridge. The bottom surface of the second concave cylindrical groove 131 is preferably bent in a second radius of curvature larger than the first radius of curvature in the throttling direction, and the portion disposed on the same line in the throttling direction is a second concave disposed at the same height. It is formed as a cylindrical surface 132. The second concave cylindrical surface 132 is disposed to face the first concave cylindrical surface 112.

제2오목원통표면(132)의 제2곡률반경은, 이웃하는 교량상판 간의 상하 단차로 인한 차량의 원활한 주행에 문제가 없고 교량상판이 상방향으로 들어 올려짐에 따른 구조적인 문제가 발생되지 않도록 하는 크기로 하는 것이 중요하다. 상시의 최대 허용단차의 크기는 허용 주행속도와 지지구조 등에 따라 달리 정해진다. 또한, 교량상판에서 발생되는 단차의 크기는 교량상판의 교축방향으로의 최대 허용변위, 제2오목원통표면(132)의 제2곡률반경, 교량상판의 길이에 따라 달라지므로 하한치를 구체적으로 특정하기는 어렵지만 본 발명이 적절하게 사용될 수 있는 일반 소규모 교량에 사용되는 면진장치의 용량이 100톤 정도이고, 이런 소규모 교량의 경우를 감안하더라도 1500mm 이상으로 하는 것이 바람직하다.The second radius of curvature of the second concave cylindrical surface 132 ensures that there is no problem in smooth running of the vehicle due to the upper and lower steps between neighboring bridge decks, and structural problems due to the lifting of the bridge deck upwards. It is important to be sized. The size of the maximum allowable step at all times is determined differently depending on the allowable running speed and supporting structure. In addition, the size of the step difference generated in the bridge deck depends on the maximum allowable displacement in the bridge axis direction of the bridge deck, the second radius of curvature of the second concave cylindrical surface 132, and the length of the bridge deck, so specify the lower limit in detail. Although it is difficult, the capacity of the seismic isolator used in a general small-sized bridge to which the present invention can be suitably used is about 100 tons, and it is preferable to set it to 1500 mm or more even considering the case of such a small bridge.

즉, 제2오목원통표면(132)의 제2곡률반경은, 바람직하게, 제1곡률반경의 1.5배 이상이다. 제2곡률반경이 커지는 경우, 교축방향으로의 복원을 위한 별도의 탄성복원기구가 설치되는 것이 바람직하다. 이에 대해서는 뒤에서 더 자세히 설명한다.That is, the second radius of curvature of the second concave cylindrical surface 132 is preferably at least 1.5 times the first radius of curvature. When the second radius of curvature increases, it is preferable that a separate elastic restoration mechanism is installed for restoration in the throttling direction. This will be described in more detail later.

때에 따라, 제2곡률반경은 무한대일 수 있다. 즉, 제2홈부재(130)는 바닥이 평면인 평면홈이 형성된 구성을 할 수 있는데, 이에 대해서는 뒤에서 더 자세히 설명한다.In some cases, the second radius of curvature may be infinite. That is, the second groove member 130 may have a configuration in which a flat groove having a flat bottom is formed, which will be described in more detail later.

제2오목원통면홈(131)은 제2오목원통표면(132)의 양 측부를 따라 형성된 측벽(133)을 가진다.The second concave cylindrical surface groove 131 has sidewalls 133 formed along both sides of the second concave cylindrical surface 132.

위와 같은 제2홈부재(130)는 교축직각방향보다는 교축방향으로 길게 형성되어, 바람직하게, 제2볼록부(156)에 대해 교축방향으로만 상대적인 이동을 허용하도록 형성된다. 제2볼록부(156)의 양 측면은 양쪽 측벽(133)의 안내를 받는다. 제2홈부재(130)는 제2오목원통표면(132)이 형성된 제2오목원통면홈(131)을 통해 지진뿐만 아니라 계절의 변화에 따른 온도변화, 크리프, 건조수축, 풍하중 등에 따른 상시의 상부구조물의 교축방향의, 교축직각방향보다는 상대적으로 큰 신축이나 변위를 받아줄 수 있도록 함과 아울러 교량의 상부구조물에 대해 교축방향으로 복원력을 제공할 수 있도록 하고, 지진이 발생한 경우 교량의 상부구조물이 교축방향으로 진동하면서 미끄럼 마찰을 통해 지진에너지를 소산시키는 역할도 한다.The second groove member 130 as described above is formed to be longer in the throttling direction than the throttling perpendicular direction, and is preferably formed to allow relative movement only in the throttling direction with respect to the second convex portion 156. Both sides of the second convex portion 156 are of both side walls 133 Receive guidance. The second groove member 130 is a second concave cylindrical surface groove 131 having a second concave cylindrical surface 132 formed at a constant upper portion according to temperature change, creep, drying contraction, wind load, etc. In addition, it is possible to receive a relatively larger expansion or displacement in the bridge axis direction than in the bridge axis direction, and to provide a resilience force in the bridge axis direction to the upper structure of the bridge. In case of an earthquake, the upper structure of the bridge It vibrates in the throttling direction and dissipates seismic energy through sliding friction.

바람직하게, 제2오목원통표면(132)과 양 측벽(133)에도 슬라이드기구(150)와 면접촉하는 면에 스테인리스 스틸판 등으로 된 제1미끄럼재(SM1)가 부착된다.Preferably, A first sliding member SM1 made of a stainless steel plate or the like is attached to the surface contacting the slide mechanism 150 on the second concave cylindrical surface 132 and both side walls 133.

본 발명에 따른 슬라이딩 면진장치(100)는 제1홈부재(110)와 제2홈부재(130) 사이에서 제1홈부재(110) 및 제2홈부재(130)와 각각 결합되는 슬라이드기구(150)를 가진다.The sliding seismic isolator 100 according to the present invention is a slide mechanism that is respectively coupled to the first groove member 110 and the second groove member 130 between the first groove member 110 and the second groove member 130 ( 150).

슬라이드기구(150)는 일면에 제1오목원통표면(112)에 면접촉하며 슬라이딩할 수 있도록 제1오목원통표면(112)과 같은 곡률반경의 제1볼록원통표면(152)을 가지는 제1볼록부(151)를 구비한다. 제1볼록부(151)의 반대편에 제2오목원통표면(132)에 면접촉하며 슬라이딩할 수 있도록 제2오목원통표면(132)과 같은 곡률반경의 제2볼록원통표면(157)을 가지는 제2볼록부(156)가 구비된다.The slide mechanism 150 is a first convex cylindrical surface 152 having a first convex cylindrical surface 152 having the same radius of curvature as the first concave cylindrical surface 112 so that surface contact with the first concave cylindrical surface 112 and slide can be performed. It has a part 151. A material having a second convex cylindrical surface 157 having the same radius of curvature as the second concave cylindrical surface 132 so that surface contact with the second concave cylindrical surface 132 on the opposite side of the first convex portion 151 can slide. Two convex portions 156 are provided.

제1볼록원통표면(152)은 상대적으로 작은 곡률반경을 가지도록 형성되고 제2볼록원통표면(157)은 상대적으로 큰 곡률반경을 가지도록 형성된다. 바람직하게, 슬라이드기구(150)의 제1볼록원통표면(152)과 제2볼록원통표면(157)에는 PTFE 등으로 된 제2미끄럼재(SM2)가 설치된다. 때에 따라, 제1볼록부(151)와 제2볼록부(156)는 폴리아미드, 폴리아세탈, 폴리카보네이트, 폴리에틸렌 테레프탈레이트, 변성 폴리페닐렌옥사이드 등의 엔지니어링 플라스틱으로 구성될 수 있고, 이 경우, 제2미끄럼재(SM2)를 별도로 설치하지 않을 수 있다. 위와 같은 제1볼록부(151)와 제2볼록부(156)의 서로 마주보는 면에는 구면홈(153, 158)이 각각 형성되어 있다.The first convex cylindrical surface 152 is formed to have a relatively small radius of curvature, and the second convex cylindrical surface 157 is formed to have a relatively large radius of curvature. Preferably, the first convex cylindrical surface 152 and the second convex cylindrical surface 157 of the slide mechanism 150 are provided with a second sliding member SM2 made of PTFE or the like. In some cases, the first convex portion 151 and the second convex portion 156 may be composed of engineering plastics such as polyamide, polyacetal, polycarbonate, polyethylene terephthalate, and modified polyphenylene oxide. In this case, The second sliding material SM2 may not be separately installed. Spherical grooves 153 and 158 are formed on surfaces of the first convex portion 151 and the second convex portion 156 as described above, respectively.

슬라이드기구(150)는 제1볼록부(151)와 제2볼록부(156) 사이에 설치되는 구면블록(155)을 가진다. 구면블록(155)의 상면과 하면에 구면홈(153, 158)에 결합되어 제1볼록부(151)와 제2볼록부(156)의 전방향 회전을 허용하는 볼록구면(155a, 155b)이 각각 형성되어 있다. 이에 따라, 제1볼록부(151)와 제2볼록부(156)는 서로에 대해 전방향으로 회전을 허용한다.The slide mechanism 150 has a spherical block 155 installed between the first convex portion 151 and the second convex portion 156. Convex spherical surfaces 155a and 155b that are coupled to the spherical grooves 153 and 158 on the upper and lower surfaces of the spherical block 155 to allow omnidirectional rotation of the first convex portion 151 and the second convex portion 156 Each is formed. Accordingly, the first convex portion 151 and the second convex portion 156 allow rotation in all directions with respect to each other.

바람직하게, 제1볼록부(151)와 제2볼록부(156)의 구면홈(153, 158)과 구면블록(155)의 볼록구면(155a, 155b)에도 서로 면접촉하는 부분에 미끄럼재들이 설치될 수 있다. 구면블록(155)이 엔지니어링플라스틱으로 구성되는 경우 면접촉 표면에 PTFE 등의 미끄럼재를 부착하지 않아도 된다. 경우에 따라, 제1볼록부(151)와 제2볼록부(156)도 엔지니어링플라스틱으로 구성될 수 있고, 이 경우 역시 면접촉 표면에 별도의 PTFE 등의 미끄럼재를 설치하지 않아도 된다.Preferably, the spherical grooves 153 and 158 of the first convex portion 151 and the second convex portion 156 and the convex spherical surfaces 155a and 155b of the spherical block 155 are also in surface contact with each other. Can be installed. When the spherical block 155 is made of engineering plastic, it is not necessary to attach a sliding material such as PTFE to the surface contact surface. In some cases, the first convex portion 151 and the second convex portion 156 may also be made of engineering plastic, and in this case, it is also not necessary to install a separate sliding material such as PTFE on the surface contact surface.

위와 같은 본 발명에 따른 슬라이딩 면진장치(100)는 제1홈부재(110) 및 제2홈부재(130)와 슬라이드기구(150) 간의 접촉면에 구면대신 원통형 표면을 형성하고, 작은 면적의 구면을 가지는 구면블록(155) 및 제1, 제2볼록부(151, 156)의 구면에만 미끄럼재를 부착하거나 크롬도금을 하면 되므로 제작이 쉽고, 정밀하게 제작할 수 있고, 넓은 면적에 걸쳐 미끄럼재 등을 부착해야 함에 따른 문제점을 개선할 수 있다. 원통형 표면에 스테인리스 스틸판이나 PTFE 등의 미끄럼재를 부착하는 것은 구면에 부착하는 것에 비해 월등히 수월하고 불량의 우려도 적다.The sliding seismic isolator 100 according to the present invention as described above forms a cylindrical surface instead of a spherical surface on the contact surface between the first groove member 110 and the second groove member 130 and the slide mechanism 150, and forms a spherical surface of a small area. Branches are easy to manufacture, can be precisely manufactured, and can be manufactured with precision, since the sliding material can be attached only to the spherical surface of the spherical block 155 and the first and second convex portions 151, 156 or plated with chrome. Problems due to the need to be attached can be improved. Attaching a sliding material such as stainless steel plate or PTFE to a cylindrical surface is much easier than attaching to a spherical surface, and there is less risk of defects.

위와 같은 본 발명에 따른 슬라이딩 면진장치(100)는 교량의 상부구조물과 하부구조물 사이에 설치되어 교량 상부구조물의 교축직각방향으로는 상대적으로 작은 변위를 허용하면서 제1오목원통면홈(111)과 중력의 작용으로 큰 복원력을 제공할 수 있고, 교축방향으로는 상대적으로 큰 변위를 허용하면서 제2오목원통면홈(131)과 중력의 작용으로 작은 복원력을 제공한다. 교축방향으로도 더 큰 복원력을 제공하고자 하는 경우에는, 별도의 탄성복원기구가 더 설치될 수 있다. 이는 제2오목원통표면(132)의 곡률반경이 무한대인 평면인 경우에도 마찬가지이다.The sliding seismic isolator 100 according to the present invention as described above is installed between the upper structure and the lower structure of the bridge, allowing a relatively small displacement in the direction of the bridge axis of the upper structure of the bridge while allowing the first concave cylindrical groove 111 and the gravity A large restoring force can be provided by the action of, and a small restoring force is provided by the action of the second concave cylindrical surface groove 131 and gravity while allowing a relatively large displacement in the throttling direction. In the case of providing a greater restoring force in the throttling direction as well, a separate elastic restoring mechanism may be further installed. This is the same even when the radius of curvature of the second concave cylindrical surface 132 is an infinite plane.

위에서 설명한 제1홈부재(110)와 제2홈부재(130)에는 교각의 상면과 상부구조물 저면에 설치되는 앵커 볼트 또는 앵커 너트에 너트나 볼트를 통해 각각 고정하기 위한 통공을 가지는 고정부(115, 136)가 더 형성될 수 있다. 때에 따라, 제1홈부재(110)와 제2홈부재(130)는 용접이나 여타의 고정수단을 통해 교각과 상부구조물 저면에 부착될 수 있다.The first groove member 110 and the second groove member 130 described above have a fixing portion 115 having a through hole for fixing each of the anchor bolts or anchor nuts installed on the upper surface of the pier and the bottom surface of the upper structure through a nut or bolt. , 136) may be further formed. In some cases, the first groove member 110 and the second groove member 130 may be attached to the pier and the bottom of the upper structure through welding or other fixing means.

도 5는 슬라이드기구의 변형 예를 나타낸 횡단면도이고, 도 6은 도 5 슬라이드기구의 종단면도이다.5 is a cross-sectional view showing a modified example of the slide mechanism, and FIG. 6 is a longitudinal cross-sectional view of the slide mechanism of FIG. 5.

때에 따라, 슬라이드기구(150)는, 도 5와 도 6에 나타낸 바와 같이, 제1볼록부(151)와 제2볼록부(156) 사이에 배치된 탄성패드 형태의 탄성부재(161) 및 탄성부재(161)를 통과하여 일단은 제2볼록부(156)에 고정되고 타단은 제1볼록부(151)에 형성된 핀홈(162)에 결합되어 제1볼록부(151)와 제2불록부(156) 상호간의 회동은 허용하면서 제1볼록부(151)가 제2볼록부(156)에 대해 측방으로 분리되는 것을 방지하는 전단핀(163)을 가지는 구성을 할 수 있다. 경우에 따라, 전단핀(163)의 일단은 제1볼록부(151)에 고정되고 타단은 제2볼록부(156)에 형성되는 핀홈에 결합되어 구성될 수 있다. 이렇게 하는 경우, 구면으로 형성되는 부분 없이 본 발명에 따른 슬라이딩 면진장치(100)를 구성할 수 있다.In some cases, the slide mechanism 150, as shown in Figs. 5 and 6, the elastic member 161 in the form of an elastic pad disposed between the first convex portion 151 and the second convex portion 156, and elasticity. Passing through the member 161, one end is fixed to the second convex portion 156, the other end is coupled to the pin groove 162 formed in the first convex portion 151, and the first convex portion 151 and The second convex portion 156 may have a shear pin 163 that prevents the first convex portion 151 from being separated laterally from the second convex portion 156 while allowing mutual rotation. In some cases, one end of the shear pin 163 may be fixed to the first convex portion 151 and the other end may be coupled to a pin groove formed in the second convex portion 156. In this case, it is possible to configure the sliding seismic isolator 100 according to the present invention without a portion formed into a spherical surface.

바람직하게, 제1홈부재(110)는 고정부(115)를 통해 하부구조물을 구성하는 교각(10) 등에 설치된 앵커 너트(AN) 또는 앵커 볼트에 결합되는 볼트(B) 또는 너트를 통해 교각(10) 등의 하부구조물에 고정된다.Preferably, the first groove member 110 is through the anchor nut (AN) installed on the pier 10 constituting the lower structure through the fixing part 115 or the bolt (B) or nut coupled to the anchor bolt ( 10) It is fixed to the lower structure of the back.

제2홈부재(130)는 용접을 통해 교량상판 등의 상부구조물(20)의 저면에 고정된다. 다른 다양한 고정방식이 이용될 수 있다. The second groove member 130 is fixed to the bottom of the upper structure 20 such as a bridge top plate through welding. Various other fixing methods can be used.

나머지는 도 1 내지 도 5를 통해서 앞에서 설명한 것과 같다.The rest are the same as described above through FIGS. 1 to 5.

도 7은 본 발명에 따른 슬라이딩 면진장치의 변형 예를 나타낸 분리사시도이다.7 is an exploded perspective view showing a modified example of the sliding seismic isolator according to the present invention.

때에 따라, 도 7에 나타낸 바와 같이, 제1볼록부(151)와 제2볼록부(156)의 마주보는 면에 구면홈(158)과 구면홈(158)에 결합되는 볼록구면(154)을 각각 형성하여 제1볼록부(151)와 제2볼록부(156)가 서로에 대해 전방향으로 회전할 수 있도록 결합될 수 있다. 볼록구면(154)이 제1볼록부(151)에 일체로 형성되므로, 슬라이드기구(150)를 2개의 부품으로 구성할 수 있다. 제1오목원통면홈(111)의 길이를 줄이고자 하는 경우, 제1볼록부(151)의 교축직각방향으로의 길이는 볼록구면(154)이 형성된 부분까지 줄여서 구성할 수 있다. In some cases, as shown in FIG. 7, a convex spherical surface 154 coupled to the spherical groove 158 and the spherical groove 158 is formed on the facing surface of the first convex portion 151 and the second convex portion 156. Each may be formed so that the first convex portion 151 and the second convex portion 156 can rotate in all directions relative to each other. Since the convex spherical surface 154 is integrally formed with the first convex portion 151, the slide mechanism 150 can be composed of two parts. In the case of reducing the length of the first concave cylindrical surface groove 111, the length of the first convex portion 151 in a direction perpendicular to the axle axis may be reduced to a portion in which the convex spherical surface 154 is formed.

구면홈(158)과 구면홈(158)에 결합되는 볼록구면(154)은 제1볼록부(151)와 제2볼록부(156)에 그 설치위치를 서로 바꾸어 형성될 수 있다.The convex spherical surface 154 coupled to the spherical groove 158 and the spherical groove 158 may be formed by changing installation positions of the first convex portion 151 and the second convex portion 156 with each other.

나머지는 도 1 내지 도 5를 통해 앞에서 설명한 것과 같다.The rest are the same as described above with reference to FIGS. 1 to 5.

도 8과 도 9는 본 발명에 따른 슬라이딩 면진장치의 변형 예를 각각 나타낸 반폭단면도이다. 8 and 9 are half-width cross-sectional views each showing a modified example of the sliding seismic isolator according to the present invention.

때에 따라, 제2홈부재(130)는 제1홈부재(110)의 제1오목원통표면(112)과 마주보는 평면(135a)을 가지는 평면홈(135)을 가지도록 구성될 수 있다. 이 경우, 제1홈부재(110)와 제2홈부재(130) 사이에 배치되는 슬라이드기구(150)의 일면에는 앞 실시 예에서 설명한 것과 같이 제1오목원통표면(112)에 면접촉하며 슬라이딩할 수 있도록 제1오목원통표면(112)과 같은 곡률반경의 제1볼록원통표면(152)을 가지는 제1볼록부(151)로 형성하고, 제1볼록원통표면(152) 반대면에는 평면홈(135)의 평면(135a)에 면접촉하며 슬라이딩할 수 있도록 평면(159)을 가지는 제2볼록부(156)를 형성할 수 있다.In some cases, the second groove member 130 may be configured to have a planar groove 135 having a plane 135a facing the first concave cylindrical surface 112 of the first groove member 110. In this case, one surface of the slide mechanism 150 disposed between the first groove member 110 and the second groove member 130 is in surface contact with the first concave cylindrical surface 112 and slides as described in the previous embodiment. A first convex portion 151 having a first convex cylindrical surface 152 having the same radius of curvature as the first concave cylindrical surface 112 can be used, and a flat groove on the opposite surface of the first convex cylindrical surface 152 A second convex portion 156 having a plane 159 may be formed so as to be in surface contact with the plane 135a of 135 and slide.

이 경우, 바람직하게, 교축방향의 제2홈부재(130)의 양측 가장자리에 제1홈부재(110)를 향해 돌출된 돌출부(137)를 설치하고, 돌출부(137)와 제2볼록부(156) 사이에 탄성복원기구(170)를 설치할 수 있다. 이 탄성복원기구(170)는 도 8과 도 9에 나타낸 바와 같이, 제2홈부재(130)에 평면(135a)을 가지는 평면홈(135)이 형성되고, 제2볼록부(156)의 대응 접촉면을 평면(159)으로 구성하는 경우에, 교량의 상부구조물에 교축방향으로 복원력을 제공할 수 있도록 하기 위한 것이다. 제2홈부재(130)와 제2볼록부(156)에 곡률반경이 매우 큰 제2오목원통표면과 제2볼록원통표면이 형성되는 경우에도 도 8과 도 9에 나타낸 바와 같이 돌출부와 제2볼록부 사이에 탄성복원기구(170)가 설치될 수 있음은 물론이다.In this case, preferably, protrusions 137 protruding toward the first groove member 110 are installed at both edges of the second groove member 130 in the throttling direction, and the protrusions 137 and the second protrusions 156 ) Between the elastic restoration mechanism 170 can be installed. The elastic restoration mechanism 170 has a flat groove 135 having a plane 135a on the second groove member 130, as shown in FIGS. 8 and 9, and corresponding to the second convex portion 156 In the case of configuring the contact surface as a flat surface 159, it is to provide a restoring force in the axle direction to the upper structure of the bridge. Even when the second concave cylindrical surface and the second convex cylindrical surface having a very large radius of curvature are formed in the second groove member 130 and the second convex portion 156, as shown in Figs. Of course, the elastic restoration mechanism 170 may be installed between the convex portions.

도시된 바와 같이, 탄성복원기구(170)는 돌출부(137)에 수평으로 결합되는 축부재(171)와 축부재(170)의 외주면에 결합되어 돌출부(137)와 제2볼록부(156) 사이를 탄성적으로 지지할 수 있는 탄성체(172)를 가진다. 탄성체(172)로는 폴리우레탄 등으로 구성된 머스프링(MER Spring)이 적당하다. 때에 따라, 탄성복원기구(170)의 축부재(171)는 제2볼록부(156)에 수평으로 결합되어 설치될 수 있다.As shown, the elastic restoration mechanism 170 is coupled to the outer circumferential surface of the shaft member 171 and the shaft member 170 horizontally coupled to the protrusion 137, between the protrusion 137 and the second convex portion 156 It has an elastic body 172 capable of supporting elastically. As the elastic body 172, a MER Spring made of polyurethane or the like is suitable. In some cases, the shaft member 171 of the elastic restoration mechanism 170 may be horizontally coupled to the second convex portion 156 to be installed.

도 8과 도 9를 참고하면, 탄성복원기구(170)는 바람직하게, 축부재(171)의 안쪽 단부에 설치되는 선압축판(173)을 가진다. 축부재(171)는 일단이 돌출부(137)를 관통하여 돌출부(137) 바깥으로 돌출되고, 돌출부(137) 바깥으로 돌출된 축부재(171)의 외주면에 너트(174)가 나사결합된다. 너트(174)를 잠가서 탄성체(172)를 선압축한 상태로 도 8과 도 9에 나타낸 바와 같이 설치할 수 있다. 이와 같이 탄성체(172)가 선압축된 상태로 설치되면 지진 등에 의해 제2홈부재(130) 상에 설치된 상부구조물이 교축방향으로 움직일 때 한쪽의 탄성복원기구(170)는 압축되면서 충격을 완충하였다가 복원력을 제공하고, 나머지 한쪽의 탄성복원기구(170)는 제2볼록부(156)에서 떨어지므로 제2홈부재(130) 위에 설치되는 상부구조물의 변위를 증가시키는 힘을 작용시키지 않는다.8 and 9, the elastic restoration mechanism 170 preferably has a pre-compression plate 173 installed at the inner end of the shaft member 171. The shaft member 171 has one end passing through the protruding part 137 and protruding out of the protruding part 137, and a nut 174 is screwed on the outer peripheral surface of the shaft member 171 protruding out of the protruding part 137. It can be installed as shown in FIGS. 8 and 9 in a state in which the elastic body 172 is pre-compressed by locking the nut 174. When the elastic body 172 is installed in a pre-compressed state as described above, when the upper structure installed on the second groove member 130 moves in the throttling direction due to an earthquake or the like, the elastic restoration mechanism 170 on one side is compressed and buffers the impact. Provides a restoring force, and the elastic restoring mechanism 170 on the other side is separated from the second convex portion 156, so that a force that increases the displacement of the upper structure installed on the second groove member 130 is not applied.

때에 따라, 도 9에 나타낸 바와 같이, 제2볼록부(156)에 수평방향으로 안내구멍(156a)을 형성하고, 탄성복원기구(170)에는 선압축판(173)에서 내측으로 돌출되어 안내구멍(156a)에 이동 가능하게 삽입되는 안내돌기(175)를 가지도록 할 수 있다. 안내구멍(156a)의 깊이와 안내돌기(175)의 길이는 전체 탄성체(172)의 최대 수축량을 고려하여 조정할 수 있다.In some cases, as shown in FIG. 9, a guide hole 156a is formed in the horizontal direction in the second convex portion 156, and the elastic restoration mechanism 170 protrudes inward from the linear compression plate 173 to guide the hole. It is possible to have a guide protrusion 175 that is movably inserted into (156a). The depth of the guide hole 156a and the length of the guide protrusion 175 can be adjusted in consideration of the maximum amount of contraction of the entire elastic body 172.

또한, 축부재(171) 외주면에 설치되는 탄성체(172)를 2개 또는 3개 이상으로 분할하고, 이웃하는 탄성체(172) 사이의 축부재(171) 외주면에 축부재(171)를 따라 이동 가능한 분할판(176)을 설치하여 지지강성을 키움과 아울러 탄성체(172)가 압축될 때 바깥으로 볼록해진 부분이 제2홈부재(130) 등과 접촉되는 것을 방지할 수 있다.In addition, the shaft member 171 is divided into two or three or more elastic bodies 172 installed on the outer circumferential surface, and is movable along the shaft member 171 on the outer circumferential surface of the shaft member 171 between the neighboring elastic bodies 172 The partition plate 176 may be installed to increase the support stiffness and prevent the outwardly convex portion from contacting the second groove member 130 or the like when the elastic body 172 is compressed.

나머지는 도 6을 통해 설명한 것과 같다.The rest are the same as described with reference to FIG. 6.

도 10은 본 발명에 따른 슬라이딩 면진장치의 또 다른 예를 나타낸 반폭단면도, 도 11은 도 10의 K-K에 따른 부분 단면도이다.10 is a half-width cross-sectional view showing another example of a sliding seismic isolator according to the present invention, and FIG. 11 is a partial cross-sectional view taken along K-K of FIG. 10.

때에 따라, 탄성복원기구(180)는 제1쐐기부재(181)와 제2쐐기부재(183), 탄성체(185), 로드(186), 가압판(187) 및 너트(189)를 이용하여 구성할 수 있다.In some cases, the elastic restoration mechanism 180 may be configured using a first wedge member 181 and a second wedge member 183, an elastic body 185, a rod 186, a pressure plate 187, and a nut 189. I can.

제1쐐기부재(181)는 제2볼록부(156)의 측면을 지지하며 제2볼록부(156)에서 바깥으로 갈수록 높이가 점점 낮아지며 안쪽에서 바깥쪽으로 슬롯(181a)이 형성된 구성을 한다. 슬롯(181a)은 도 11에 나타낸 바와 같이 간격을 두고 2개 정도 형성하고, 제2쐐기부재(183), 탄성체(185), 로드(186), 가압판(187), 너트(189) 등은 각 슬롯(181a) 마다 1개씩 설치하는 것이 바람직하다. 로드(186)는 슬롯(181a)을 통해 제2홈부재(130)에 결합된다. 바람직하게, 로드(186)는 나사결합을 통해 제2홈부재(130)에 고정된다. 제2쐐기부재(183), 쐐기부재가압 탄성체(185) 및 가압판(187)은 구멍을 통해 로드(186)의 외주면에 결합된다. 제2쐐기(183)는 안쪽에서 바깥으로 갈수록 높이가 점점 높아지게 배치되어 제1쐐기부재(181)와 면접촉 한다. The first wedge member 181 supports the side surface of the second convex portion 156 and gradually decreases in height from the second convex portion 156 to the outside, and has a configuration in which a slot 181a is formed from the inside to the outside. As shown in Fig. 11, about two slots 181a are formed at intervals, and the second wedge member 183, the elastic body 185, the rod 186, the pressure plate 187, the nut 189, etc. are each It is preferable to install one for each slot (181a). The rod 186 is coupled to the second groove member 130 through the slot 181a. Preferably, the rod 186 is fixed to the second groove member 130 through screwing. The second wedge member 183, the wedge member pressing elastic body 185, and the pressing plate 187 are coupled to the outer peripheral surface of the rod 186 through a hole. The second wedge 183 is disposed so as to increase in height from the inside to the outside to make surface contact with the first wedge member 181.

너트(189)는 로드(186)에 나사결합되어 가압판(187)을 통해 쐐기부재가압 탄성체(185)를 제2쐐기부재(183)를 향해 가압한다. 너트(189)의 결합정도를 조정하여 쐐기부재가압 탄성체(185)의 압축정도를 조정함으로써 제2쐐기부재(183)가 제1쐐기부재(181)를 가압하는 초기 가압력을 조정할 수 있다. The nut 189 is screwed to the rod 186 and presses the wedge member pressing elastic body 185 toward the second wedge member 183 through the pressing plate 187. By adjusting the coupling degree of the nut 189 to adjust the compression degree of the wedge member pressing elastic body 185, the initial pressing force of the second wedge member 183 pressing the first wedge member 181 may be adjusted.

바람직하게, 제1쐐기부재(181)의 표면에는 스테인리스 스틸판과 같은 제1미끄럼재(SM1)가 부착되고, 제1쐐기부재(181)와 제2홈부재(130) 사이 및 제2쐐기부재(183)의 표면에 PTFE 등의 제2미끄럼재(SM2)가 설치된다.Preferably, a first sliding material (SM1) such as a stainless steel plate is attached to the surface of the first wedge member 181, between the first wedge member 181 and the second groove member 130, and the second wedge member A second sliding material SM2 such as PTFE is provided on the surface of 183.

도 10에 나타낸 바와 같은 상태에서, 지진 등에 의해 제2홈부재(130)에 수평하중이 가해지는 경우, 제2볼록부(156)에 의해 제1쐐기부재(181)가 바깥으로 이동하면서 쐐기부재가압 탄성체(185)를 압축시키고, 외력이 제거되면 쐐기부재가압 탄성체(185)가 제2쐐기부재(183)를 제1쐐기부재(181)를 향해 가압하여 제1쐐기부재(181)에 복원력을 제공한다. 이러한 과정에서 제1쐐기부재(181)와 제2쐐기부재(183) 간에 및 제1쐐기부재(181)와 제2홈부재(130)에 설치된 제2미끄럼재(SM2) 간의 마찰에 의해 지진에너지가 소산된다.In the state as shown in FIG. 10, when a horizontal load is applied to the second groove member 130 due to an earthquake or the like, the first wedge member 181 moves outward by the second convex portion 156 and the wedge member When the pressing elastic body 185 is compressed and the external force is removed, the wedge member pressing elastic body 185 presses the second wedge member 183 toward the first wedge member 181 to apply a restoring force to the first wedge member 181. to provide. In this process, earthquake energy due to friction between the first wedge member 181 and the second wedge member 183 and between the first wedge member 181 and the second sliding member SM2 installed in the second groove member 130 Is dissipated.

나머지는 도 6을 통해 앞에서 설명한 것과 같다.The rest are the same as described above with reference to FIG. 6.

이상 설명한 본 발명에 따른 슬라이딩 면진장치(100)는 상하로 뒤집힌 상태로 설치될 수 있음은 물론이다.It goes without saying that the sliding seismic isolator 100 according to the present invention described above may be installed in an upside down state.

도 12와 도 13은 도 7의 변형 예를 각각 나타낸 단면도이다.12 and 13 are cross-sectional views each showing a modified example of FIG. 7.

이 실시 예는, 제1볼록부(151)와 제2볼록부(156)를 엔지니어링 플라스틱으로 일체로 각각 형성하되, 제1볼록부(151) 상면에 볼록구면(154)을 형성하고, 제2볼록부(156) 저면에 오목구면(158)을 형성하여 제2볼록부(156)가 제1볼록부(151)에 대해 전방향으로 경사를 허용하도록 구성한 것을 예시하고 있다. 이 경우, 제1볼록부(151)와 제2볼록부(156)에는 서로 면접촉하는 접촉면 또는 다른 부재와의 면접촉하는 접촉면에 PTFE 등의 별도의 미끄럼재를 설치하지 않아도 된다.In this embodiment, the first convex portion 151 and the second convex portion 156 are integrally formed of engineering plastic, respectively, but a convex spherical surface 154 is formed on the upper surface of the first convex portion 151, and the second It is illustrated that the concave spherical surface 158 is formed on the bottom of the convex portion 156 to allow the second convex portion 156 to incline with respect to the first convex portion 151 in all directions. In this case, it is not necessary to install a separate sliding material such as PTFE on the first convex portion 151 and the second convex portion 156 on a contact surface in surface contact with each other or on a contact surface in surface contact with another member.

또한, 이 실시 예는, 제2오목원통표면(132)을 가지는 제1홈부재(130)의 돌출부(137)와 제1볼록부(156) 사이에 탄성복원기구(170)가 설치된 것을 보여준다. 제2홈부재(130)의 교축방향 양단부에 제1홈부재(110)를 향해 하방으로 돌출된 돌출부(137)를 형성하고, 이 돌출부(137)와 제2볼록부(156) 사이에 탄성복원기구(170)를 설치할 수 있다. 즉, 제2오목원통표면(132)의 곡률반경이 큰 경우에는 제2홈부재(130)가 설치되는 교량 상판 등의 상부구조물의 복원을 위한 탄성복원기구(170)가 설치될 수 있다.In addition, this embodiment shows that the elastic restoration mechanism 170 is installed between the protruding portion 137 and the first convex portion 156 of the first groove member 130 having the second concave cylindrical surface 132. Protrusions 137 protruding downward toward the first groove member 110 are formed at both ends of the second groove member 130 in the throttling direction, and elastic restoration between the protrusions 137 and the second protrusions 156 The mechanism 170 can be installed. That is, when the radius of curvature of the second concave cylindrical surface 132 is large, an elastic restoration mechanism 170 for restoring an upper structure such as a bridge top plate on which the second groove member 130 is installed may be installed.

그리고 탄성복원기구(170)에 설치되는 탄성체(172)를 3개 이상으로 분할하되 각 탄성체(172) 사이에 분할판(176)을 설치할 수 있다. 이 실시 예들에서는 4개의 탄성체(172)와 3개의 분할판(176)을 가지는 탄성복원기구(170)가 설치된 것을 보여준다.In addition, the elastic body 172 installed in the elastic restoration mechanism 170 may be divided into three or more, but a partition plate 176 may be installed between each elastic body 172. In these embodiments, it is shown that the elastic restoration mechanism 170 having four elastic bodies 172 and three partition plates 176 is installed.

그 외에 도 10에 나타낸 탄성복원기구(170) 역시 이 실시 예에서와 같이 설치될 수 있을 것이다.In addition, the elastic restoration mechanism 170 shown in FIG. 10 may also be installed as in this embodiment.

나머지는 도 7을 통해서 앞에서 설명한 것과 같다.The rest are the same as described above with reference to FIG. 7.

위에서 설명한 실시 예에서, 본 발명에 따른 슬라이딩 면진장치(100)의 지지를 받는 상부구조물이 교축직각방향으로 변위하였다가 다시 복원함으로 별도의 탄성복원기구를 설치할 필요가 없지만, 보다 확실한 복원을 보장하고자 하거나 교축직각방향으로의 완충기능이 필요한 경우 교축직각방향의 제1볼록부(151)의 양단에 제2볼록부(156)를 향하도록 돌출되는 돌출부를 형성하고, 이 돌출부와 제1볼록부(151) 사이에 별도의 탄성복원기구가 더 설치될 수 있다. 이 경우의 탄성복원기구는 교축방향으로 설치되는 탄성복원기구보다 훨씬 짧은 것이 설치될 것이다. 이 역시 발명의 기술사상에 포함된다.In the above-described embodiment, the upper structure supported by the sliding seismic isolator 100 according to the present invention is displaced in a direction perpendicular to the bridge axis and then restored again, so there is no need to install a separate elastic restoration mechanism, but to ensure a more reliable restoration. Or, when a buffer function in the direction perpendicular to the axle axis is required, a protrusion protruding toward the second convex portion 156 is formed at both ends of the first convex portion 151 in the direction perpendicular to the axle axis, and the protrusion and the first convex portion ( A separate elastic restoration mechanism may be further installed between 151). In this case, the elastic restoration mechanism will be installed much shorter than the elastic restoration mechanism installed in the throttling direction. This is also included in the technical idea of the invention.

본 발명은 교량이나 각종 구조물에 설치되어 온도변화에 따른 상부구조물의 신축, 크리프, 건조수축 등의 변형을 허용하고, 차량의 시제동하중에 따른 변위를 허용하였다가 복원될 수 있고, 지진 시에 면진, 복원, 지진에서지 소산의 기능을 수행할 수 있는 면진장치를 만드는데 이용될 가능성이 있다.The present invention is installed on bridges or various structures to allow deformation of the upper structure according to temperature change, creep, and shrinkage, etc., and can be restored after allowing displacement according to the vehicle's test braking load. It is likely to be used to make a seismic isolator that can perform the function of dissipation in earthquakes, restoration, and earthquakes.

100: 슬라이딩 면진장치 110: 제1홈부재
111: 제1오목원통면홈 112: 제1오목원통표면
113, 133: 측벽 130: 제2홈부재
131: 제2오목원통면홈 132: 제2오목원통표면
135: 평면홈 135a, 159: 평면
150: 슬라이드기구 151: 제1볼록부
152: 제1볼록원통면 153, 158: 구면홈
155: 구면블록 155a, 155b: 볼록구면
156: 제2볼록부 157: 제2볼록원통면
161: 탄성부재 162: 핀홈
163: 전단핀 170, 180: 탄성복원기구100: sliding seismic isolator 110: first groove member
111: first concave cylindrical surface groove 112: first concave cylindrical surface
113, 133: side wall 130: second groove member
131: second concave cylindrical surface groove 132: second concave cylindrical surface
135: flat groove 135a, 159: flat
150: slide mechanism 151: first convex portion
152: first convex cylindrical surface 153, 158: spherical groove
155: spherical block 155a, 155b: convex spherical surface
156: second convex portion 157: second convex cylindrical surface
161: elastic member 162: pin groove
163: shear pin 170, 180: elastic restoration mechanism

Claims

In the sliding seismic isolator for supporting the load of the upper structure to the lower structure while allowing the displacement in the direction perpendicular to the bridge axis and the displacement in the bridge axis direction of the upper structure by being installed between the upper structure and the lower structure of the bridge,
A first concave cylindrical surface groove having a first concave cylindrical surface disposed at the same height is formed in a portion bent at a first radius of curvature in the direction perpendicular to the constriction axis and disposed on the same line in the constriction direction, and installed in the direction perpendicular to the constriction axis. A first groove member;
A portion bent in a second radius of curvature larger than the first radius of curvature in the throttling direction and disposed on the same line in the throttling direction perpendicular to the throttling axis is disposed at the same height and has a second concave cylindrical surface facing the first concave cylindrical surface. A second groove member having a second concave cylindrical surface groove formed therein and installed in the throttling direction; And
It is disposed between the first groove member and the second groove member, and has a first convex cylindrical surface having the same radius of curvature as the first concave cylindrical surface so as to be in surface contact with the first concave cylindrical surface and slide on one surface. The first convex portion is provided with a first convex portion, and has a second convex cylindrical surface having the same radius of curvature as the second concave cylindrical surface so that surface contact with the second concave cylindrical surface and slide on the opposite surface of the first convex portion. It includes a slide mechanism provided with a second convex portion allowing rotation with respect to the convex portion,
The second concave cylindrical surface is formed longer than the first concave cylindrical surface,
The first groove member is formed longer in a direction perpendicular to the axle axis than in the direction of a convex axis to allow a relative movement only in a direction perpendicular to the constriction axis with respect to the first convex portion, and the second groove member is the constriction axis rather than in a direction perpendicular to the constriction axis. It is formed to be elongated in the direction and is formed to allow relative movement only in the throttling direction with respect to the second convex portion,
The first radius of curvature is more than 250 mm and less than 1000 mm,
The second radius of curvature is 1500 mm or more,
The first convex portion and the second convex portion of the slide mechanism,
I) the first convex portion and the second convex portion are coupled to each other through a spherical groove respectively formed on a surface facing each other to allow inclination and a convex spherical surface rotatably coupled to the spherical groove;
Ii) the slide mechanism includes a spherical block disposed between the first convex portion and the second convex portion and each having a convex spherical surface on an upper surface and a lower surface thereof,
A spherical groove rotatably coupled to the convex spherical surface is formed in a portion facing the convex spherical surface so as to allow the first convex portion and the second convex portion to be inclined to each other;
Iii) the slide mechanism has an elastic member disposed between the first convex portion and the second convex portion and passes through the elastic member, and one end is fixed to one of the first convex portion and the second convex portion, and the other end Is coupled to a groove formed in the remaining one of the first convex portion and the second convex portion to allow rotation to allow an inclination between the first convex portion and the second convex portion, while the first convex portion is To be configured with a shear pin that prevents the two convex portions from being separated laterally; Sliding seismic isolator, characterized in that coupled to each other rotatably by any one of.

In the sliding seismic isolator for supporting the load of the upper structure to the lower structure while allowing the displacement in the direction perpendicular to the bridge axis and the displacement in the bridge axis direction of the upper structure by being installed between the upper structure and the lower structure of the bridge,
A first concave cylindrical surface groove having a first concave cylindrical surface disposed at the same height is formed in a portion bent at a first radius of curvature in the direction perpendicular to the constriction axis and disposed on the same line in the constriction direction, and installed in the direction perpendicular to the constriction axis. A first groove member;
A second groove member having a planar groove having a plane facing the first concave cylindrical surface and installed in the throttling direction; And
It is disposed between the first groove member and the second groove member, and has a first convex cylindrical surface having the same radius of curvature as the first concave cylindrical surface so as to be in surface contact with the first concave cylindrical surface and slide on one surface. It includes a slide mechanism provided with a first convex portion, a second convex portion allowing rotation with respect to the first convex portion and having a flat surface so as to slide in surface contact with the plane on the opposite surface of the first convex portion, and ,
The plane of the second groove member is formed longer than the first concave cylindrical surface,
The first groove member is formed longer in a direction perpendicular to the axle axis than in the direction of a convex axis to allow a relative movement only in a direction perpendicular to the constriction axis with respect to the first convex portion, and the second groove member is the constriction axis rather than in a direction perpendicular to the constriction axis. It is formed to be elongated in the direction and is formed to allow relative movement only in the throttling direction with respect to the second convex portion,
The first radius of curvature is more than 250 mm and less than 1000 mm,
The first convex portion and the second convex portion of the slide mechanism,
I) the first convex portion and the second convex portion are coupled to each other through a spherical groove respectively formed on a surface facing each other to allow inclination and a convex spherical surface rotatably coupled to the spherical groove;
Ii) the slide mechanism includes a spherical block disposed between the first convex portion and the second convex portion and each having a convex spherical surface on an upper surface and a lower surface thereof,
A spherical groove rotatably coupled to the convex spherical surface is formed in a portion facing the convex spherical surface so as to allow the first convex portion and the second convex portion to be inclined to each other;
Iii) the slide mechanism has an elastic member disposed between the first convex portion and the second convex portion and passes through the elastic member, and one end is fixed to one of the first convex portion and the second convex portion, and the other end Is coupled to a groove formed in the remaining one of the first convex portion and the second convex portion to allow rotation to allow an inclination between the first convex portion and the second convex portion, while the first convex portion is To be configured with a shear pin that prevents the two convex portions from being separated laterally; Sliding seismic isolator, characterized in that coupled to each other rotatably by any one of.

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In claim 1 or 2,
A first sliding member is installed on the surface of the first groove member and the second groove member in surface contact with the slide mechanism, and a second sliding member that slides in surface contact with the first sliding member is installed in the slide mechanism. Sliding seismic isolator, characterized in that.

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The method of claim 1 or 2, wherein a protrusion protruding toward the first groove member is installed at both edges of the second groove member in the throttling direction, and an elastic restoration mechanism is provided between the protrusion part and the second convex part. A sliding seismic isolator, characterized in that installed.

The elastic body of claim 9, wherein the elastic restoration mechanism includes a shaft member horizontally coupled to at least one of the protrusion and the second protrusion, and an elastic body coupled to an outer peripheral surface of the shaft member and disposed between the protrusion and the second protrusion. A sliding seismic isolator comprising a.

The method of claim 10, wherein the elastic restoration mechanism,
A pre-compression plate installed at the inner end of the shaft member, and a nut screwed to the outer circumferential surface of the shaft member protruding out of the protrusion through the protrusion so as to pre-compress the elastic body. Sliding seismic isolator.

12. The method of claim 11, wherein a guide hole is formed in the second convex portion in a horizontal direction, and the elastic restoration mechanism has a guide protrusion protruding inwardly from the linear compression plate and movably inserted into the guide hole. Sliding seismic isolator.

In claim 9, wherein the elastic restoration mechanism,
A first wedge member supporting a side surface of the second convex portion and gradually lowering in height toward the outside from the second convex portion and having a slot formed from the inside to the outside, a rod coupled to the second groove member through the slot, the rod The second wedge member coupled to the first wedge member and in surface contact with the first wedge member, and the wedge member pressing elastic body coupled to the outer circumferential surface of the rod and the wedge member pressing elastic body are used to form the second wedge member. A sliding seismic isolator comprising: a pressing plate for pressing toward and a nut that is screwed to the rod and presses the wedge member pressing elastic body toward the second wedge member through the pressing plate.

The method of claim 13, wherein a first sliding member is attached to the surface of the first wedge member, and a second sliding member is installed between the first wedge member and the second groove member and on the surface of the second wedge member. Sliding seismic isolator.

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