| 摘要 |
PROBLEM TO BE SOLVED: To provide an effective and appropriate installation structure of a seismic device that can surely and firmly joint a PCa frame, used for installing the seismic device on a foundation, to the foundation without causing slip.SOLUTION: The bottom surface of a PCa frame 1 is jointed onto a foundation 2 to fix the bottom of a seismic device 4 onto the PCa frame 1. A plug 10 that can prevent the occurrence of slip against a horizontal shear force acting on the joint surface of the PCa frame 1 and the foundation 2 is interposed at a position extending over both the PCa frame 1 and the foundation 2, and the PCa frame 1 is connected to the foundation 2 by the plug 10 so as not to be displaced horizontally. Concrete is filled integrally into a vertical through hole 11 formed in the center of the PCa frame 1 and a recess 12 formed in the upper part of the foundation 2 to form a concrete plug 10. Effectively a steel material 13 is embedded in the concrete plug 10. |
