000009999 001__ 9999
000009999 005__ 20141205154137.0
000009999 04107 $$aeng
000009999 046__ $$k2008-10-12
000009999 100__ $$aFoltz, Raymond R.
000009999 24500 $$aBehavior of High-Performance Fiber-Reinforced Cementitious Composites for RC Coupling Beams in Earthquake-Resistant Structural Wall Systems

000009999 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009999 260__ $$b
000009999 506__ $$arestricted
000009999 520__ $$2eng$$aCoupled shear walls are a popular reinforced concrete (RC) structural system for medium-rise structures in areas of moderate to high seismicity. Since current building code specifications for RC coupling beams typically require substantial longitudinal, transverse, and sometimes even confined diagonal reinforcement, the result can often be reinforcement congestion accompanied by costly operations and time delays. As a design alternative, use of High Performance Fiber Reinforced Cementitious Composites (HPFRCC) has been considered. Use of HPFRCC may allow for a simplified reinforcement detailing, especially when located in critical shear and/or moment regions where extensive reinforcement is usually required. It is expected that the use of HPFRCC can increase coupling beam damage tolerance through a ductile response obtained by the tensile strain-hardening and confined compressive behavior of the material. Additionally, HPFRCC is being investigated as a replacement for some steel confinement reinforcement and to provide an additional shear resistance mechanism. The reported experimental program at the University of Illinois has been conducted to further understand the behavior of HPFRCC under general uniaxial and biaxial stress states, such as would be expected at various key locations in a coupling beam. Concrete plate specimens comprising mixes containing from one to two percent volume fraction of hooked steel fibers and Spectra (polyethylene) fibers were tested. Using the knowledge and behavioral trends gained through laboratory tests of these HPFRCC materials, it may be possible to extrapolate the energy dissipating behavior of HPFRCC to potential uses in structural elements for seismic design.

000009999 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009999 653__ $$aFiber-Reinforced Concrete, Coupling Beams, Earthquake Resistant Design, Shear Strength, Damage Tolerance, Biaxial Loading

000009999 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009999 720__ $$aFoltz, Raymond R.$$iGuerra, Jesse M.$$iLaFave, James M.
000009999 8560_ $$ffischerc@itam.cas.cz
000009999 8564_ $$s2064777$$uhttps://invenio.itam.cas.cz/record/9999/files/05-03-0073.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-03-0073.
000009999 962__ $$r9324
000009999 980__ $$aPAPER