A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Flexural Modeling of Steel Fiber-Reinforced Concrete Members: Analytical Investigations
AbstractThis paper presents an analytical model for the determination of the ultimate flexural capacity of steel fiber-reinforced (SFR) concrete rectangular sections and their associated crack width using the principles of strain compatibility and force equilibrium. The proposed model considers an elastic perfect-plastic model for compression and an elastic constant postpeak response of SFR concrete in tension. Unlike other flexural models available in the literature, the proposed model considers in the analysis the random distribution and orientation of steel fibers at a cracked section. The model was verified using existing experimental results, and it fairly predicted the flexural capacity of the SFR concrete beams. A parametric study using the proposed model was conducted to assess the effect of the fiber parameters and the strength of the concrete on the ultimate flexural capacity of a section and its associated crack widths. A normalized design chart is also presented to simplify the analysis procedure, and this can be used in the selection of fiber parameters (volume fraction and aspect ratio) during flexural design of SFR concrete members.
Flexural Modeling of Steel Fiber-Reinforced Concrete Members: Analytical Investigations
AbstractThis paper presents an analytical model for the determination of the ultimate flexural capacity of steel fiber-reinforced (SFR) concrete rectangular sections and their associated crack width using the principles of strain compatibility and force equilibrium. The proposed model considers an elastic perfect-plastic model for compression and an elastic constant postpeak response of SFR concrete in tension. Unlike other flexural models available in the literature, the proposed model considers in the analysis the random distribution and orientation of steel fibers at a cracked section. The model was verified using existing experimental results, and it fairly predicted the flexural capacity of the SFR concrete beams. A parametric study using the proposed model was conducted to assess the effect of the fiber parameters and the strength of the concrete on the ultimate flexural capacity of a section and its associated crack widths. A normalized design chart is also presented to simplify the analysis procedure, and this can be used in the selection of fiber parameters (volume fraction and aspect ratio) during flexural design of SFR concrete members.
Flexural Modeling of Steel Fiber-Reinforced Concrete Members: Analytical Investigations
Singh, Harvinder (author)
2015
Article (Journal)
English
BKL:
56.11
Baukonstruktion
Instantaneous Crack Width Calculation for Steel Fiber- Reinforced Concrete Flexural Members
| British Library Online Contents | 2018
Mean steel strain in reinforced concrete flexural members
| Springer Verlag | 1979