An isolation bearing for highway bridges using shape memory alloys

被引：65

作者：

Choi, E.

Nam, T. H.

Oh, J. T.

Cho, B. S.

机构：

[1] Korea Railrd Res Inst, Uiwang City 437050, Kyounggi Do, South Korea

[2] Gyeoungsang Natl Univ, Dept Met & Mat Engn, Gyeoungsnag, South Korea

[3] Inje Univ, Dept Civil Engn, Kimhae, Gyeoungsang, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 438卷

关键词：

shape memory alloy; lead-rubber bearings; seismic bridge analysis; isolation device;

D O I：

10.1016/j.msea.2006.05.098

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Conventional lead-rubber bearings may have a problem of instability and unrecovered deformation with a strong ground motion. As a way of solving the problem, this study proposes a new concept of an isolation device in which shape memory alloy wires are incorporated in an elastomeric bearing. A three-span continuous steel bridge was used for seismic analyses to compare the performance of lead-rubber and the proposed bearings. The proposed bearings limit the deck relative displacement effectively with strong ground motions and recover almost original undeformed shape. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1081 / 1084

页数：4