000010237 001__ 10237
000010237 005__ 20141205155706.0
000010237 04107 $$aeng
000010237 046__ $$k2008-10-12
000010237 100__ $$aHo, Johnny C.M.
000010237 24500 $$aProposed Confinement Steel Design within Critical Region for Limited Ductile High-Strength Reinforced Concrete Columns

000010237 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010237 260__ $$b
000010237 506__ $$arestricted
000010237 520__ $$2eng$$aIn high seismic risk region, the design of high-strength reinforced concrete (HSRC) columns in fully ductile buildings or bridges requires a large amount of confinement reinforcement within the critical region to avert brittle failure. However, in regions of low to moderate seismic risk, the design of these columns, which have a smaller seismic resistance demand, could be designed for reduced limited ductility. The advantage of this is that it saves considerably the construction cost and alleviates steel congestion problem within the beam-column or pier - pile cap joints. In a previous study conducted by the authors, an equation was proposed for the confinement steel design within the column’s critical region for achieving limited ductile behaviour. This paper investigates experimentally the flexural ductility of three HSRC columns containing the proposed confinement steel content within their critical region and subjected to various compressive axial load levels. By comparing with fully ductile HSRC columns, it is seen that limited ductility HSRC columns can be confined effectively by less amount of confinement steel over a shorter critical region length. Lastly, some simplified design guidelines for limited ductility HSRC columns are proposed.

000010237 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010237 653__ $$aColumns, confinement, curvature, high-strength concrete, limited ductility

000010237 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010237 720__ $$aHo, Johnny C.M.$$iPam, Hoat Joen
000010237 8560_ $$ffischerc@itam.cas.cz
000010237 8564_ $$s283572$$uhttps://invenio.itam.cas.cz/record/10237/files/12-03-0097.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-03-0097.
000010237 962__ $$r9324
000010237 980__ $$aPAPER