BASE ISOLATION FOUNDATION AND CONSTRUCTION METHOD FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a construction method for a base isolation foundation capable of reducing a construction cost.SOLUTION: A construction method for a base isolation foundation is for constructing a base isolation foundation 1 by placing reinforced concrete together with a lower base plate 20 to install a base isolation device 10 thereon. The construction method for the base isolation foundation comprises: a step S1 to install side forms 40 surrounding side faces of the base isolation foundation 1 and to temporarily fix the lower base plate 20 in a space P surrounded by the side forms 40; a step S2 to divide the space P surrounded by the side forms 40 into a first space Pwhere the lower base plate 20 is temporarily fixed therein and a second space Pwhere the lower base plate 20 is not temporarily fixed therein in a planar view and to install lath nets 41 at boundaries between the first space Pand the second space P; and a step S3 to place concrete into the first space Pso that the concrete flows into the second space Pby overflowing the lath nets 41.