Title:
Cyclic Behavior of High-Strength Concrete Short Beams With Lower Amount of Flexural Reinforcement
Author(s):
I-Kuang Fang, Chuen-Shyuan Wang, and Keh-Luen Hong
Publication:
Structural Journal
Volume:
91
Issue:
1
Appears on pages(s):
10-18
Keywords:
beams (supports); concretes; cyclic loads; ductility; earthquake-resistant structures; flexural strength; high-strength concretes; shear properties; Structural Research
DOI:
10.14359/4477
Date:
1/1/1994
Abstract:
Experimental investigation of the cyclic behavior of high-strength concrete (HSC) short beams with lower flexural reinforcement ratio is reported. Fifteen cantilever beam specimens were subjected to monotonic loading and various types of cyclic loadings. The main variables included shear span-to-depth ratio, compressive strength of concrete, and loading histories. The compressive strength of concrete varied from 32 to 70 MPa (4500 to 10,000 psi). Test results indicated that the displacement ductility factor of HSC short beams with lower amount of flexural reinforcement is about 5 to 6. The trend of degradation in strength and stiffness, as well as the energy-dissipation capacity of beam specimens, became more pronounced as the shear stress level in the plastic hinge region increased.