ANALYTICAL ESTIMATES FOR THE LATERAL THRUST IN BOLTED STEEL BUCKLING-RESTRAINED BRACES

被引：15

作者：

Bregoli, Guido ^{[1
]}

Genna, Francesco ^{[1
]}

Metelli, Giovanni ^{[1
]}

机构：

[1] Univ Brescia, Dept Civil Engn, Via Branze 43, I-25123 Brescia, Italy

来源：

JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES | 2016年 / 11卷 / 02期

关键词：

buckling-restrained braces; elastic-plastic buckling; unilateral contact; lateral thrust; restraining member design; TESTS; DESIGN;

D O I：

10.2140/jomms.2016.11.173

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Analytical expressions are developed for the lateral thrust exerted by the core of a buckling-restrained brace (BRB), when, upon a prescribed axial loading history, it buckles, coming into contact with the external retaining structure. Account is taken of (i) the elastic stiffness of the containment case; (ii) the possible flattened shape of each buckled wave in the zones of contact with the containment profiles; and (iii) the increase in the lateral thrust due to loading-unloading in the presence of linear kinematic hardening. Comparisons with both experimental and numerical results confirm the effectiveness of the analytical predictions. The proposed calculation techniques for the lateral thrust might be of help in the design procedures of BRBs.

引用

页码：173 / 196

页数：24

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