000019665 001__ 19665
000019665 005__ 20170118182331.0
000019665 04107 $$aeng
000019665 046__ $$k2017-01-09
000019665 100__ $$aLi, Zhongxian
000019665 24500 $$aHysteretic Performance Study on a Pre-Pressed Spring Self-Centering Energy Dissipation Brace

000019665 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019665 260__ $$b
000019665 506__ $$arestricted
000019665 520__ $$2eng$$aThis paper presents a new type of pre-pressed spring self-centering energy dissipation (PS-SCED) bracing system that combines friction energy dissipation mechanisms between the inner and outer tube members with the pre-pressed combination disc springs that are 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 a large scale PS-SCED bracing specimen were conducted due to the low cyclic reversed loadings. Experimental results demonstrate that the proposed bracing system exhibits a stable and repeatable flag-shaped hysteretic response with excellent self-centering capability, appreciable energy dissipation, large ultimate bearing and deformation capacities. Almost no residual deformation occurs when the friction force is less than the initial pre-pressed force of disc springs. Results also show that the compressive capability is better than the tensile capability and the ductility behavior in tension is better than that of the brace in compression, and the proposed bracing system still can reduce the influence of residual deformations and dissipate energy effectively even the tubes are already in the elastic-plastic stage. The overall hysteretic responses are well predicted by the proposed equations and good agreements between the calculated and experimental bearing forces are found.

000019665 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019665 653__ $$aself-centering energy dissipation brace; combination disc spring; hysteretic behavior; residual deformation; low cyclic reversed loading test

000019665 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019665 720__ $$aLi, Zhongxian$$iFan, Xiaowei$$iXu, Longhe
000019665 8560_ $$ffischerc@itam.cas.cz
000019665 8564_ $$s886220$$uhttps://invenio.itam.cas.cz/record/19665/files/4130.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4130.
000019665 962__ $$r16048
000019665 980__ $$aPAPER