SUPPORT STRUCTURE FOR TANK

PROBLEM TO BE SOLVED: To provide a support structure for a tank, which is capable of easily improving the seismic performance of an existing ground tank fixedly planted by support members including tilting materials, and in which regarding a new ground tank fixedly planted by support members including tilting materials, a reduction in diameter of a support can be achieved, and also, a reduction in the number of supports can be achieved, and thereby, a construction cost can be improved and a construction period can be shortened.SOLUTION: A support structure for a tank includes: a plurality of bases 5 provided in a ground around a spherical tank 1, and each including an anchor part; a plurality of supports 2 each suspended from each base 5; and a plurality of tilting materials 3, each of which obliquely connects the supports 2 and 2 adjacent to each other by one tilting material and has earthquake energy absorbing function capable of exhibiting the earthquake energy absorbing function by the drawing resistance or less of the anchor part just under the support 2 to which the lower end thereof is fixedly connected.