Paper Title:
Ductility Evaluation of Reinforced UHTCC Structural Members
  Abstract

Ultra-high toughness cementitious composite (UHTCC) is a PVA fiber reinforced cementitious composite. Tensile strain hardening behavior with ultimate tensile strain of more 3% under direct tensile loading is one of its important characteristics. In the current article, nine simply-supported reinforced UHTCC beams were subjected to four-point bending loading to experimentally investigate the influence of ductile deformation behavior of UHTCC on ductility capacity of reinforced structural members. Ductility index is determined by adopting three different parameters, i.e., deformation capacity, energy dissipation capacity as well as curvature capacity. The effect of longitudinal tensile reinforcement ratios on the variation of ductility in UHTCC reinforced beams was examined. It was found from the experimental results that the combination of ductile matrix (UHTCC) and steel bar prevents from occurrence of localized cracks in pure bending zone, showing high damage tolerance and ductile failure behavior. The results also show that as longitudinal tensile reinforcement ratio increases, deformation ductility and curvature ductility both exponentially decrease while a small reduction is demonstrated for energy ductility at ultimate failure.

  Info
Periodical
Advanced Materials Research (Volumes 150-151)
Edited by
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
Pages
229-234
DOI
10.4028/www.scientific.net/AMR.150-151.229
Citation
X. F. Zhang, S. L. Xu, "Ductility Evaluation of Reinforced UHTCC Structural Members", Advanced Materials Research, Vols. 150-151, pp. 229-234, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wei Jian Yi, Yan Mei Lv
Abstract:19 RC beams with shear span-to-depth equal to 3 were tested under a stiff testing facility, and complete load-deflection curves including the...
857
Authors: Jiang Feng Dong, Qing Yuan Wang, Yan Mei Zhu
Abstract:This paper presents the results of an experimental research work designed to study the flexural strengthening capacity and the modes of...
842
Authors: Wen Hui Bai
Abstract:This paper mainly studies the deflection under short-term loading of recycled course aggregate reinforced concrete beam is calculated by...
1443
Authors: Xian Li, Heng Lin Lv, Shu Chun Zhou
Low Carbon, Energy Saving Design and Practice
Abstract:Fiber-reinforced polymer (FRP) bars are emerging as a competitive option for replacing steel bars as reinforcement in various concrete...
850
Authors: Yan Ling Zhang, Wei Ge, De Ying Zhang
Chapter 2: Structural Engineering
Abstract:Due to the axial curvature and the eccentric vehicle loads, bending-torsion couple effects will be generated in the curved steel-concrete...
785