000012079 001__ 12079
000012079 005__ 20141205160017.0
000012079 04107 $$aeng
000012079 046__ $$k2008-10-12
000012079 100__ $$aWeng, Dagen
000012079 24500 $$aExperimental Study on Seismic Retrofit of R/C Frame with Damping Bracing

000012079 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012079 260__ $$b
000012079 506__ $$arestricted
000012079 520__ $$2eng$$aThe experimental study on seismic retrofit of the reinforced concrete (R/C) frame with damper bracings was carried in this paper. Two test models were cast according to one kind of frame in which gravity load carrying beams were arranged in transverse direction of the building and possessed lower lateral strength in longitudinal direction. One of the models called energy dissipation frame was retrofitted with two supplemental viscous damper bracings in each inter-story in longitudinal direction. Both models were arranged on the shaking table and simultaneously excited in longitudinal direction by simulated earthquake motions with different peak ground acceleration (PGA). The test results showed that the ratios of the inter-story damper forces to the inter-story shear forces ranged from 0.20 to 0.70 and the equivalent damping ratios ranged from 0.14 to 0.28 for the energy dissipation frame. The accelerations, inter-story displacements and inter-story shear forces were greatly reduced comparing to the model without damper bracings. Besides, the vibration in resonance was prevented because of the high damping performances of damper bracings. Given the same inter-story displacements, the energy dissipation frame was tested the twice PGA of the frame without damper bracings. It is verified that the seismic performances of this kind of frame can be improved by the damper bracings.

000012079 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012079 653__ $$aShaking table test, viscous damper, energy dissipation, seismic retrofit

000012079 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012079 720__ $$aWeng, Dagen$$iHe, Hui$$iLu, Xilin
000012079 8560_ $$ffischerc@itam.cas.cz
000012079 8564_ $$s301713$$uhttps://invenio.itam.cas.cz/record/12079/files/05-06-0056.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0056.
000012079 962__ $$r9324
000012079 980__ $$aPAPER