초록 ▼

An earthquake resistant structure for mounting on a base having a limited available surface has an upper bearing and a lower bearing compactly arranged, one with a convex surface and the other with a concave surface, in contact with each other to transmit load between a bridge and a supporting pier,

An earthquake resistant structure for mounting on a base having a limited available surface has an upper bearing and a lower bearing compactly arranged, one with a convex surface and the other with a concave surface, in contact with each other to transmit load between a bridge and a supporting pier, for example, the bearings being slidable relative to each other; a pin is provided for fixing the upper and lower bearings and an extraction preventing member prevents the bearings from separating from each other; a seal member is disposed between the upper bearing and the lower bearing; and a dust prevention and anti-corrosion cover are provided to assure long-time use.

대표청구항 ▼

[ What is claimed is:] [1.] An isolated bearing structure for minimizing earthquake damage comprising an upper bearing and a lower bearing positioned for supporting said upper bearing, said bearings having curved bearing surfaces capable of supporting an upper construction upon a lower construction,

[ What is claimed is:] [1.] An isolated bearing structure for minimizing earthquake damage comprising an upper bearing and a lower bearing positioned for supporting said upper bearing, said bearings having curved bearing surfaces capable of supporting an upper construction upon a lower construction,wherein one of said curved bearing surfaces is convex and the other curved bearing surface is concave, said curved bearing surfaces being slidable with respect to each other, andwherein said upper bearing and said lower bearing are provided with an opening extending through said upper and lower bearings and their curved bearing surfaces and wherein a fixing pin is positioned in said opening for fixing said upper bearing and said upper construction relative to said lower bearing and said lower construction, said fixing pin being constructed of a shape and size to be broken by a major earthquake force and to free said upper bearing and said upper construction for movement independently of said lower bearing.