Title: Effect of Loading Rate on Anchorage Bond and Beam-Column Joints

Author(s): Lan Chung and Surendra P. Shah

Publication: Structural Journal

Volume: 86

Issue: 2

Appears on pages(s): 132-142

Keywords: anchorage (structural); beams (supports); blast loads; bond (concrete to reinforcement); columns (supports); cracking (fracturing); ductility; dynamic loads; earthquake-resistant structures; failure; impact strength; joints (junctions); loads (forces);

DOI: 10.14359/2628

Date: 3/1/1989

Abstract:
Small-scale reinforced concrete specimens subjected to cyclic loading were tested at rates varying from 0.0025 to 2.0 Hz to investigate the effects of several variables including loading rate, shear-span-to-depth ratio a/d, and stirrup spacing. The study's primary objective was to investigate the rate effect of cyclic loading on bond in reinforced concrete structures. Several different parameters including stiffness degradation, energy dissipation, failure mode, and strain and bond-stress distributions along the bar were examined to evaluate the differences due to the loading rate.