000009748 001__ 9748
000009748 005__ 20141205153150.0
000009748 04107 $$aeng
000009748 046__ $$k2008-10-12
000009748 100__ $$aChung, Young Soo
000009748 24500 $$aShaking Table Response of RC Bridge Piers with Lap-Spliced Longitudinal Steels in Low Seismic Regions

000009748 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009748 260__ $$b
000009748 506__ $$arestricted
000009748 520__ $$2eng$$aThe near fault ground motion (NFGM) is characterized by a single long period velocity pulse of large magnitude.(Somerville et. al 1997) Extensive research for the far fault ground motion (FFGM) have been carried out in strong seismic region, but limited research have been done for NFGM in low or moderate seismic regions because of very few records. For reinforced concrete (RC) bridge piers constructed before implementing the 1992 seismic design code in Korea, longitudinal reinforcing steels were practically lapspliced in the plastic hinge region between column and footing. This research aims at investigating the seismic behavior of RC bridge piers with lap-spliced longitudinal steels subjected to NFGM in low or moderate seismic region. Five RC pier specimens with a diameter of 400 mm and height of 1400 mm were tested on a shake table, and two identical specimens were tested under a quasi-static load and a pseudo-dynamic load. The effects of lap-spliced longitudinal reinforcing steels are investigated. Shaking test results are compared to those by Quasi-static test and Pseudo-dynamic test. It was concluded that: a) displacement ductility was significantly decreased in RC column specimens with lap-spliced longitudinal reinforcing steels; b) bond failure in the lapped starter bars and buckling of the longitudinal steel bars initiated failure in RC specimens with and without lap-spliced longitudinal steels, respectively; c) more transverse reinforcing steels induced better displacement ductility; and d) a decrease of displacement ductility and energy dissipation was observed in the specimens on a shake table excitation in comparison with the specimens by the quasi-static and the pseudo-dynamic test.

000009748 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009748 653__ $$abridges, reinforced concrete, piers, ductility, lap-splice, near fault ground motion, shake table, quasi-static, pseudo-dynamic, low seismic region.

000009748 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009748 720__ $$aChung, Young Soo$$iHong, Hong K.$$iYang, Dong W.$$iLee, Kwang S.
000009748 8560_ $$ffischerc@itam.cas.cz
000009748 8564_ $$s2352460$$uhttps://invenio.itam.cas.cz/record/9748/files/S03-009.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S03-009.
000009748 962__ $$r9324
000009748 980__ $$aPAPER