Title:
Conventional and Unconventional Approaches for the Evaluation of Crack Width in FRC Structures
Author(s):
Alessandro P. Fantilli, and Bernardino Chiaia
Publication:
Symposium Paper
Volume:
319
Issue:
Appears on pages(s):
4.1-4.12
Keywords:
Fiber-reinforced concrete, Crack width, crack depth, Crack spacing, Tension stiffening, Fracture mechanics of concrete, Golden Scaling Law.
DOI:
10.14359/51700853
Date:
6/1/2017
Abstract:
To evaluate crack patterns accurately, a conventional tension-stiffening approach has to be used. Accordingly, both
the bridging of fibers and the bond-slip mechanisms of rebars are taken into account in a new block model. At one
time, the model predicts the values of crack width, crack spacing, and crack depth. Moreover, it also leads to the
definition of the so-called Golden Scaling Law. The practical interest of this unconventional approach lies in the
possibility of predicting the crack pattern of large FRC structures without knowing the material performances, and
testing prototypes of small size.