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Hysteretic behavior studies of self-centering energy dissipation bracing system
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 Title & Authors
Hysteretic behavior studies of self-centering energy dissipation bracing system
Xu, Longhe; Fan, Xiaowei; Lu, Dengcheng; Li, Zhongxian;
 Abstract
This paper presents a new type of pre-pressed spring self-centering energy dissipation (PS-SCED) bracing system that combines friction mechanisms between the inner and outer tube members to provide the energy dissipation with the pre-pressed combination disc springs installed on both ends of the brace to provide the self-centering capability. The mechanics and the equations governing the design and hysteretic responses of the bracing system are outlined, and a series of validation tests of components comprising the self-centering mechanism of combination disc springs, the friction energy dissipation mechanism, and a large scale PS-SCED bracing specimen were conducted due to the low cyclic reversed loadings. Experimental results demonstrate that the proposed bracing system performs as predicted by the equations governing its mechanical behaviors, which exhibits a stable and repeatable flag-shaped hysteretic response with excellent self-centering capability and appreciable energy dissipation, and large ultimate bearing and deformation capacities. Results also show that almost no residual deformation occurs when the friction force is less than the initial pre-pressed force of disc springs.
 Keywords
self-centering energy dissipation brace;combination disc spring;hysteretic behavior;residual deformation;low cyclic reversed loading test;
 Language
English
 Cited by
1.
Nonlinear behavior of connections in RCS frames with bracing and steel plate shear wall,;;;;;

Steel and Composite Structures, 2016. vol.22. 4, pp.915-935 crossref(new window)
1.
Behaviors Comparisons and Prediction of Pre-Pressed Spring Self-Centering Energy Dissipation Braces, International Journal of Structural Stability and Dynamics, 2017, 1840006  crossref(new windwow)
2.
Cyclic behavior and failure mechanism of self-centering energy dissipation braces with pre-pressed combination disc springs, Earthquake Engineering & Structural Dynamics, 2017, 46, 7, 1065  crossref(new windwow)
3.
Development and experimental study of a self-centering variable damping energy dissipation brace, Engineering Structures, 2018, 160, 270  crossref(new windwow)
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Nonlinear behavior of connections in RCS frames with bracing and steel plate shear wall, Steel and Composite Structures, 2016, 22, 4, 915  crossref(new windwow)
5.
Experimental behavior and analysis of self-centering steel brace with pre-pressed disc springs, Journal of Constructional Steel Research, 2017, 139, 363  crossref(new windwow)
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