000011912 001__ 11912
000011912 005__ 20141205160000.0
000011912 04107 $$aeng
000011912 046__ $$k2008-10-12
000011912 100__ $$aToyooka, Akihiro
000011912 24500 $$aVerification Tests of the Dynamic Behavior of the Novel Friction-Based Rotational Damper Using Shaking Table

000011912 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011912 260__ $$b
000011912 506__ $$arestricted
000011912 520__ $$2eng$$aA friction damper is regarded as one of the most effective structural control devices in view of regulating the inertia force induced from the upper structures and effective energy dissipation. Despite a large number of friction dampers or bearings have been used for civil and architectural structures, those devices generally require large deformation and stable vertical load induced on the device in order to attain a desirable control performance. In order to overcome such difficulties, a new friction-based damper was developed. The new damper has several steel arms that are linked each other by a bolt in order for them to rotate freely, and carefully manufactured disk friction materials are embedded in that link. By connecting these arms to the upper and lower structures, horizontal deformation of the structure is converted into the rotational motion of the link and disk. The damper requires significantly less space for installation compared to the traditional friction dampers in order to attain the large friction energy dissipation. Moreover, the friction force is easily controlled by a torque of the fastening bolt, independent from the vertical load of the upper structure. In this research, dynamic performance of the proposed damper was studied through a large-scale shaking table tests on which the girder and bearings were mounted. It was confirmed through periodical loading tests that the damper generated the stable friction force regardless of the loading frequency. It was also found that the damper successfully introduced the supplemental damping to the structure under earthquake motions.

000011912 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011912 653__ $$aBridge Damper, Passive Control, Experimental Tests, Friction Damper, Bridges Retrofitting

000011912 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011912 720__ $$aToyooka, Akihiro$$iHimeno, Takeshi$$iHishijima, Yasuhisa$$iIemura, Hirokazu$$iMualla, Imad
000011912 8560_ $$ffischerc@itam.cas.cz
000011912 8564_ $$s829697$$uhttps://invenio.itam.cas.cz/record/11912/files/12-01-0218.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0218.
000011912 962__ $$r9324
000011912 980__ $$aPAPER