000010631 001__ 10631
000010631 005__ 20141205155747.0
000010631 04107 $$aeng
000010631 046__ $$k2008-10-12
000010631 100__ $$aLee, Jung-Yoon
000010631 24500 $$aSoftening Behavior of RC Columns under Cyclic Loading

000010631 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010631 260__ $$b
000010631 506__ $$arestricted
000010631 520__ $$2eng$$aThe load carrying capacity and energy dissipation behavior of columns in post yield range of deformation has a significant role to prevent a total collapse of reinforced concrete buildings. Reinforced concrete short (small height to depth ratio) column dominated by shear generally indicates the reduction of lateral load capacity and less energy dissipation due to pinching effect after peak load. Therefore the seismic design of RC short columns needs to consider not only the shear strength but also the post peak behavior in view of capacity reduction and energy dissipation during load cycling. However there are few researches on the post peak behavior of shear dominated short column. Ten RC columns with varying shear reinforcement ratios and axial force ratios were tested under reversed cyclic loading. Test results indicated that the nominal concrete contribution to shear resistance in the plastic hinge region decreased after flexural yielding of the column. In addition, the axial force decreased the deformability of RC members, but eliminated the pinching effect in the post-yield load hysteretic response.

000010631 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010631 653__ $$aRC columns, axial strain, deformability, load patterns, axial load, pinching effect

000010631 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010631 720__ $$aLee, Jung-Yoon$$iKono, Susumu$$iWatanabe, Fumio$$iCheong, Yeon-Geol
000010631 8560_ $$ffischerc@itam.cas.cz
000010631 8564_ $$s780431$$uhttps://invenio.itam.cas.cz/record/10631/files/05-03-0051.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-03-0051.
000010631 962__ $$r9324
000010631 980__ $$aPAPER