COMPOSITE EFFECT OF STEEL REBARS AND MACRO STEEL FIBERS ON THE FLEXTURAL BEHAVIOUR OF FULL-SCALE SELF-CONDOLIDATING CONCRETE BEAMS
The main objective of this paper is to investigate the composite effect of steel rebars and macro steel fibers on the flexural resistance of full-scale self-consolidating concrete beams.An experimental program was carried out on six full-scale beams of distinct longitudinal reinforcement ratio (os) and various fiber contents, subjected to four point loads.From the relationship between force and midspan deflection, the contribution of steel fibers for the beam load carrying capacity at ultimate limit states was assessed.A significant positive synergistic effect on the ultimate load and controlling of deflection can be achieved by the combination of steel fibers and steel rebars.The 14.0 kg/m3 of longitudinal reinforcements can be partially replaced by 50 kg/m3 steel fibers with the load carrying capacity of the beam still increased.
Self-consolidating concrete Steel fiber Flexural resistance Steel rebars Deflection
NING Xiliang DING Yining ZHANG Fasheng
Institute of Structural Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116000, Liaoning, China
国际会议
厦门
英文
331-341
2014-06-05（万方平台首次上网日期，不代表论文的发表时间）