000018325 001__ 18325
000018325 005__ 20170118182217.0
000018325 04107 $$aeng
000018325 046__ $$k2017-01-09
000018325 100__ $$aLaughery, Lucas
000018325 24500 $$aSeismic Response of High-Strength Steel Reinforced Concrete Frames

000018325 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018325 260__ $$b
000018325 506__ $$arestricted
000018325 520__ $$2eng$$aSubstituting conventional reinforcing steel bars with high-strength steel bars can reduce reinforcement congestion, improve constructability, and lower costs in reinforced concrete construction. Member dimensions remaining the same, high-strength steel reinforced concrete (HSSRC) members have lower post-cracking stiffness compared to conventionally-reinforced members of comparable strength. The subject of this investigation is whether this reduction in post-cracking stiffness results in higher peak drifts in structures containing HSSRC members. Four portal frames with identical member dimensions, but different column longitudinal reinforcement configurations, were tested on a unidirectional earthquake simulator. Two frames (type C) had conventional steel longitudinal reinforcement in the columns. In the other two frames (type H), a reduced ratio of high-strength steel was used as column longitudinal reinforcement to achieve comparable nominal strength. Reinforcing details of the frames were otherwise the same. Each frame was subjected to a series of five ground motions of either increasing or decreasing intensity. Measurements of their response showed that peak drifts of type H frames were comparable to drifts of type C frames. It was also observed that softening caused by damage from previous shaking did not affect peak drift, suggesting that initial period of vibration dominated frame response.

000018325 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018325 653__ $$areinforced concrete; high-strength steel; shake table; simulated earthquakes

000018325 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018325 720__ $$aLaughery, Lucas$$iPujol, Santiago
000018325 8560_ $$ffischerc@itam.cas.cz
000018325 8564_ $$s512468$$uhttps://invenio.itam.cas.cz/record/18325/files/1234.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1234.
000018325 962__ $$r16048
000018325 980__ $$aPAPER