000012349 001__ 12349
000012349 005__ 20141205160045.0
000012349 04107 $$aeng
000012349 046__ $$k2008-10-12
000012349 100__ $$aZhou, Yun
000012349 24500 $$aResearch and Application of Lead Viscoelastic Damper

000012349 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012349 260__ $$b
000012349 506__ $$arestricted
000012349 520__ $$2eng$$aA new type of energy dissipation device, lead viscoelastic damper(LVD), was introduced, and the principle, configuration, characteristics of LVD are illustrated.The LVD, which is consisted of lead core and viscoelastic materials, mainly dissipates energy through shear strains of the viscoelastic material and compressive deformation and shear deformation of the lead core, Therefore, it combines the characteristics of both displacement-dependent and velocity-dependent dampers. The experiments were done to study the performance of LVD. Experimental results show that the LVD have good seismic energy dissipation capabilities and performance of fatigue resistance, and shares many of the advantages of existing passive control devices. Based on relevant research results, the energy formula for LVD simulating with Bouc-wen model was presented, and the force model and design process of the LVD and the analysis method of structures with LVDs were studied. The calculating formula of equivalent damping ratio for the structures with LVDs was derived. Finally, some applications of the proposed LVD in seismic retrofit as well as new construction projects were presented in this paper. Analysis results of the projects indicate that the structural seismic behavior could be significantly improved due to the adoption of the structures with LVDs.

000012349 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012349 653__ $$aLead viscoelastic damper(LVD), Energy dissipation, Hysteresis performance

000012349 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012349 720__ $$aZhou, Yun$$iWu, Congxiao$$iDeng , Xuesong$$iWu, Y
000012349 8560_ $$ffischerc@itam.cas.cz
000012349 8564_ $$s532114$$uhttps://invenio.itam.cas.cz/record/12349/files/11-0182.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 11-0182.
000012349 962__ $$r9324
000012349 980__ $$aPAPER