000009598 001__ 9598
000009598 005__ 20141205150222.0
000009598 04107 $$aeng
000009598 046__ $$k2008-10-12
000009598 100__ $$aBugaldian, A.
000009598 24500 $$aThe Use of Steel-Belted Automobile Tires as Column Confinement Reinforcement

000009598 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009598 260__ $$b
000009598 506__ $$arestricted
000009598 520__ $$2eng$$aSteel-belted automobile tires provide an environmentally friendly alternative to conventional transverse reinforcement in circular reinforced concrete columns. These tires contain sufficiently high percentage of high-grade embedded steel that are effective in confining column concrete. Tires can be assembled on top of each other, either clamped by longitudinal reinforcement inserted through their sidewalls or longitudinal reinforcement placed around the perimeter of the rim. They function as stay-in-place formwork while also providing transverse confinement reinforcement to the compression concrete. The tires also protect the column against corrosion and chemical attacks. When used for bridges or parking structures, they also provide energy absorption against potential vehicular impact. The effectiveness of steel-belted tires as transverse column reinforcement was investigated experimentally by testing near full-size columns under simulated seismic loading. Columns encased in 550 mm diameter tires were tested under constant axial compression and incrementally increasing lateral deformation reversals. The results indicate that reinforced concrete columns, cast in steel-belted radial tires perform favorably, well into the inelastic range of deformations, exhibiting drift capacities of 4% to 6%. Columns with longitudinal reinforcement placed through their sidewalls had higher moment capacity due to the increased lever arm. The concrete between the longitudinal reinforcement and the tires was able to restrain the compression bars against buckling. The results further indicate that column flexural capacity can be computed through the conventional plane-section analysis with appropriate concrete stress-strain relationships that account for concrete confinement and the presence of rubber sidewalls between the layers of compression concrete.

000009598 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009598 653__ $$aconcrete columns, confinement, drift capacity, ductility, hysteretic behavior, structural testing.

000009598 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009598 720__ $$aBugaldian, A.$$iSaatcioglu, M.
000009598 8560_ $$ffischerc@itam.cas.cz
000009598 8564_ $$s3193093$$uhttps://invenio.itam.cas.cz/record/9598/files/05-03-0214.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-03-0214.
000009598 962__ $$r9324
000009598 980__ $$aPAPER