JP2638464B2 - Expansion joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint structure provided between a building having a general structure such as an RC structure and a building having a seismic isolation structure.

[0002]

2. Description of the Related Art In recent years, a building having a seismic isolation structure developed to protect precision equipment such as OA equipment from earthquake disasters is being constructed.

At present, this seismic isolation building is mostly a single building. However, due to the high construction cost, a method of integrating with a general building or using a seismic isolation structure only for a necessary part of the building is considered in the future. .

[0004] Further, since the shaking of the base-isolated building and the non-base-isolated building during an earthquake is greatly different, it is necessary that the joint portion has an expansion joint structure.

[0005]

However, the vibration of the base-isolated building is extremely small, while the vibration of the non-base-isolated building is large and complicated. Therefore, it cannot be said that the conventional expansion joint structure can sufficiently cope with the vibration. Required the development of a new expand joint structure.

The present invention has been made in response to such a demand, and is intended to prevent a seismically isolated building and a non-seismic isolated building from exerting a harmful effect on each other even when a large shaking due to an earthquake occurs. It is an object of the present invention to provide an expanded joint structure.

[0007]

An expansion joint structure according to the present invention comprises a movable wall rotatably connected to one of a seismically isolated building and a non-seismic isolated building;
An auxiliary movable wall rotatably connected to the movable wall, and a storage unit provided on the other of the seismic isolated structure building or the non-seismic isolated structure building, and for storing the movable wall and the auxiliary movable wall, A spring is provided inside the storage portion so as to pull the movable wall and the auxiliary movable wall.

[0008]

【Example】

Embodiment 1 FIG. FIG. 1 shows an embodiment of an expansion joint structure according to the present invention. In the drawing, reference numeral 1 denotes a building constructed by an RC structure or the like, in particular, a building having no seismic isolation function (hereinafter simply referred to as building 1), 2 Is constructed by an RC structure or the like and has a seismic isolation structure having a seismic isolation function (hereinafter simply referred to as building 2), and 3 is mainly constructed by stress and deformation generated in buildings 1 and 2 in response to shaking due to an earthquake. An expansion joint configured to physically separate buildings 1 and 2 so that 1 and 2 do not adversely affect each other mechanically.

[0009] The expansion joint 3 is
A movable wall 4 and an auxiliary movable wall 5 installed between the building 2 and
A storage section 6 capable of storing the movable wall 4 and the auxiliary movable wall 5
And a spring 7 that pulls the movable wall 4 and the auxiliary movable wall 5 inward of the storage section 6.

The movable wall 4 and the auxiliary movable wall 5 are connected to each other by a connecting pin 8 so as to be freely rotatable in the lateral direction, and the end of the movable wall 4 on the building 1 side is a frame member attached to the wall surface of the building 1. 9 is connected to a connecting pin 10 so as to be rotatable in the lateral direction.

The end of the auxiliary movable wall 5 on the side of the building 2 is connected to an end of a spring 7 mounted in the storage section 6 so that the movable wall 4 and the auxiliary movable wall 5 are always stored in the storage section. 6 has been pulled inward. The spring 7 is firmly connected to a frame 11 made of steel or the like incorporated in the storage section 6.

Further, the movable wall 4 and the auxiliary movable wall 5 are configured by, for example, attaching a steel plate subjected to a fireproof treatment to the surface of a fireproof board in preparation for a fire.

The storage section 6 is provided on the building 2 side, and has a fire-resistant composite at the entrance 12 of the movable wall 4 and the auxiliary movable wall 5 so that there is no gap between the movable wall 4 and the auxiliary movable wall 5. A seal member 13 made of rubber or the like is attached and completely sealed.

In such a configuration, normally, the entire auxiliary movable wall 5 and a part of the movable wall 4 are stored in the storage portion 6, but in the event of an earthquake, the movable wall 4 is connected to the connecting pins at both ends. The horizontal rotation around the centers 8 and 10 and the expansion and contraction of the spring 7 absorb the stresses and deformations generated in the buildings 1 and 2, so that the buildings 1 and 2 can be shaken in all directions. Do not adversely affect each other (see Figures 2 and 3).

The movable wall 4 is not directly connected to the spring 7, but an auxiliary movable wall 5 is rotatably connected to the movable wall 4 by a connecting pin 10.
Since the spring 7 is connected to the movable wall 4, the movable wall 4 can largely rotate around the connecting pin 10 (see FIG. 3). Therefore, even if the inner dimension W of the storage section 6 is small, the movable wall 4 can largely rotate around the connecting pin 10 and can sufficiently follow a large shaking caused by a large earthquake.

[0016]

As described above, according to the expansion joint structure of the present invention, it is possible to easily follow the shaking of a non-seismic isolated building having a large shaking due to an earthquake and a seismic isolated building having a very small shaking. Therefore, there is an effect that it is possible to prevent a harmful mechanical influence between the seismically isolated building and the non-seismic isolated building.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of an expand joint structure according to the present invention.

FIG. 2 is a cross-sectional view showing an operation of the expand joint structure shown in FIG.

FIG. 3 is a cross-sectional view showing an operation of the expand joint structure shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Building (building of non-seismic structure), 2 ... Building (building of seismic isolation structure), 3 ... Expansion joint, 4 ... Movable wall, 5 ... Auxiliary movable wall, 6 ... Storage part, 7 ... Spring, 8
... connecting pin, 9 ... frame member, 10 ... connecting pin, 11 ... frame, 12 ... doorway, 13 ... seal member.

Claims (1)

(57) [Claims] An expansion jonite structure provided between a base-isolated structure building and a non-base-isolated structure building, wherein the expansion jonite structure is rotatably connected to one of the base-isolated structure building and the non-seismic-isolated structure building. A movable wall, an auxiliary movable wall rotatably connected to the movable wall, and the other of the seismic isolation structure building or the non-seismic isolation building, and accommodating the movable wall and the auxiliary movable wall. An expansion joint structure, comprising: a storage portion to be mounted; and a spring mounted inside the storage portion so as to pull the movable wall and the auxiliary movable wall.