FraMCoS 7 2010 Jeju, South Korea

Experimental study on the ultimate strength of R/C curved beam

The ultimate strength of a curved R/C beam is investigated experimentally. A curved R/C beam is classified as a statically indeterminate structure according to the structural boundary condition and is sub- jected to a torsion moment. The torsion moment generates…

First page of: Experimental study on the ultimate strength of R/C curved beam
Year 2010
File Size 519 KB
Download PDF (519 KB)

Abstract

The ultimate strength of a curved R/C beam is investigated experimentally. A curved R/C beam is classified as a statically indeterminate structure according to the structural boundary condition and is sub- jected to a torsion moment. The torsion moment generates diagonal tensile cracks on the concrete surface, when the beam is subjected to a lot of torsion. An appropriate arrangement of rebar is therefore recommended under such conditions. However, the ultimate torsion strength of an R/C member depends on a combination of several factors, so a universal theory should be established for the curved RC beam. Parameters adopted here are the radius of curvature, axial force, and shear span ratio. Then the influence of those parameters on the fracture behavior of the R/C curved beam was observed. From the experimental results, it was confirmed that the radius of curvature and axial force affect the fracture behavior of the R/C curved beam.