000009357 001__ 9357
000009357 005__ 20141205150158.0
000009357 04107 $$aeng
000009357 046__ $$k2008-10-12
000009357 100__ $$aAi, Qinghua
000009357 24500 $$aEvaluation of the Seismic Performance of Reinforced Concrete Bridge Columns Based on Plastic Hinge Model

000009357 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009357 260__ $$b
000009357 506__ $$arestricted
000009357 520__ $$2eng$$aPlastic hinge model has been widely used in bridge seismic design codes such as Japan, Caltrans, New Zealand and China (revised edition), to evaluate deformation capacity of RC bridge columns. With the development of bridge performance/displacement based seismic design, several damage indices have been suggested, such as ultimate curvature and curvature ductility factor of critical section, maximum strain of confined concrete and reinforced steels, low cycle fatigue damage indices of longitudinal reinforcement etc. To study the accuracy degree of damage indices calculated with plastic hinge models and the main influencing factor, a computer program was developed employing 5 plastic hinge models to compute aforesaid damage indices compared with test data of RC bridge columns. The study results show that force-displacement curves and residual deformation calculated match the experiment with adequate accuracy, but the strain of longitudinal steel is overestimated and the strain of core concrete is underestimated. The computed ultimate curvature is lower than experiment results when shear span ratio is not less than 8. It is also recognized that under the same loading control displacement, loading path hardly affects the aforesaid damage indices.

000009357 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009357 653__ $$aRC bridge pier, performance based seismic design, plastic hinge model, damage index

000009357 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009357 720__ $$aAi, Qinghua$$iWang, Dongsheng$$iLi, Hongnan$$iSun, Zhiguo
000009357 8560_ $$ffischerc@itam.cas.cz
000009357 8564_ $$s531928$$uhttps://invenio.itam.cas.cz/record/9357/files/05-02-0023.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-02-0023.
000009357 962__ $$r9324
000009357 980__ $$aPAPER