Title:
Experimental and Numerical Retrofit of Non-Ductile Reinforced Concrete Shear Walls
Author(s):
Albright
Publication:
Web Session
Volume:
ws_F23_Albright.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
This submission describes the findings of an experimental and analytical research project on the application of retrofitting techniques for pre-1970 non-ductile reinforced concrete shear walls. One un-retrofitted control specimen has been built and tested with a barbell section (rho_v = 1.97% in the ends, rho_v = rho_h = 0.14% in the web). This wall failed in diagonal tension and wall web rebar rupture, finally resulting in a brittle toe crushing failure. Two additional identical walls are in the process of being built and tested, one with a fiber reinforced polymer (FRP) overlay and one with a concrete overlay. The goal of the retrofitting is to increase the performance of the specimens and induce a flexural, ductile failure. The walls were modeled analytically with a beam-truss approach, explicitly accounting for the bond-slip conditions and constitutive models of the overlays, then calibrated with the experimental tests.