000020159 001__ 20159
000020159 005__ 20170118182357.0
000020159 04107 $$aeng
000020159 046__ $$k2017-01-09
000020159 100__ $$aSun, Yuping
000020159 24500 $$aSeismic Behavior and Assessment of Drift-Hardening Concrete Columns

000020159 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020159 260__ $$b
000020159 506__ $$arestricted
000020159 520__ $$2eng$$aThis paper presents results of an experimental program undertaken to evaluate the seismic performance of concrete circular columns reinforced with ultra-high-strength (UHS) rebars for the purpose of development of resilient concrete columns which are expected to exhibit positive secondary stiffness till large drift and leave small and easily repairable residual deformation even after experiencing potential mega earthquakes. The use of UHS and low-bond strength rebars as longitudinal reinforcement of concrete columns offers several advantages over conventional ductile columns in maintaining stiffness and reducing residual deformation due to the long elastic region of the UHS rebars. Specimens consisted of four 1/3 scale cantilever concrete columns reinforced by eight UHS and low-bond strength rebars (SBPDN 1275/1420) with spiraled groove on their surface. The columns had a circular section of 250 mm in diameter. The experimental variables were; the shear span ratio of column and the applied axial load level. The columns were transversely confined by thin steel plates. The steel plates were formed by connecting two pieces of pre-manufactured semi-circular plates through nuts and bolts.

000020159 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020159 653__ $$aDrift hardening; circular concrete column; residual deformation

000020159 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020159 720__ $$aSun, Yuping$$iSargsyan, Grigor$$iCai, Gaochuang$$iTakeuchi, Takashi
000020159 8560_ $$ffischerc@itam.cas.cz
000020159 8564_ $$s1446454$$uhttps://invenio.itam.cas.cz/record/20159/files/664.pdf$$yOriginal version of the author's contribution as presented on USB, paper 664.
000020159 962__ $$r16048
000020159 980__ $$aPAPER