JPS626073A - Earthquake damping house structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a seismic isolation building structure that can be reused in a nuclear power plant, etc.

(Problems to be Solved by this Invention) The conventionally implemented interconnected rooms in nuclear power plants have a structure mainly made of reinforced concrete, and due to the requirements for earthquake resistance and shielding, their cross sections are thick and have a large amount of reinforcing bars. Furthermore, the foundation plate is made of solid reinforced concrete IJ-G with a thickness of approximately 6.5m, making it an extremely solid structure.

By the way, since the useful life of nuclear power generation equipment ends in about 60 years, it is required that the continuous rooms be dismantled as well, but as mentioned above, the conventional structure of the continuous rooms is large and solid, so dismantling is difficult. However, there were drawbacks such as difficulty in reusing building materials after demolition.

This invention was developed to address the above-mentioned conventional difficulties.

(Means for Solving the Problems) The gist of this invention is such that a seismic isolation elastic body using a laminated rubber bearing and a damper is placed between the ground side foundation and the building foundation. In the above, the shielding is necessary because the biological shielding wall and other parts are made of reinforced concrete, and around the biological shielding wall, column bases and beams made of steel members are assembled and connected to the biological shielding wall.

At the time of demolition, the continuous rooms were dismantled by cutting and removing the steel frame members, and the steel frame members and the ground-side foundation were reused.

(Example) The illustrated example shows a series of rooms in a nuclear power plant.
There is a space S of a required height between the ground side foundation 1 and the building foundation 2, in which a seismic isolation elastic body 6 consisting of a laminated rubber bearing, a damper, etc. is arranged. Furthermore, the building foundation 2 has a double slab foundation beam type.

A biological shielding wall 4 made of reinforced concrete IJ-contact structure is constructed on the building foundation 2, and around this biological shielding wall 4, column bases 5 and beams 6 made of steel members are connected to the wall surface. It has been established. As shown in FIG. 2, the column base 5 is
Numerous contraction mortar 9 is interposed between the column base hardware 7 fixed to the lower end of the column and the building foundation 2, and the column is established with anchor bolts. The column base 5 and the beam 6 are connected by bolts via a split tee 8, and the beam 6,
The body shielding wall 4 is joined to the living body shielding wall 4 by interposing a sliding part made of fluororesin between the upper surface of the protrusion 4a provided on the wall surface of the living body shielding wall 4 and the lower flange of the beam 6, and forming a sliding support that is tightly connected with an anchor bolt. There is.

(Effects of the Invention) This invention has the above-mentioned configuration, and since the seismic isolation elastic body is placed between the ground side foundation and the building foundation, the seismic force is significantly reduced, and as a result, the area around the biological shielding wall It is possible to have a light structure with column bases and beams made of steel members. At the time of dismantling, the continuous rooms can be easily disassembled by cutting and removing the steel members, and the dismantled steel members and the foundation on the ground side can be used, and the amount of waste is small.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing an outline of a connected room according to the present invention;
FIG. 2 is a partial vertical sectional view showing the assembled state of the continuous chambers. 1. Ground side foundation, 2. Building foundation, 3. Seismic isolation elastic body, 4. Biological shielding wall, 5. Column base, 6. Beam, 7. Column base hardware, 8. Split. Tee, 9. Non-shrinking mortar, 10. Sliding part.

Claims (1)

[Claims] A seismic isolation elastic body is placed between the ground side foundation and the building foundation, and a biological shielding wall made of reinforced concrete is placed on the building foundation, and column bases and beams made of steel members are integrated around this biological shielding wall. A seismic isolation building structure characterized by being erected.