Title:
Compressive Behavior of Thin Rectangular Boundary Elements
Author(s):
Carlos A. Arteta and Jack P. Moehle
Publication:
Structural Journal
Volume:
120
Issue:
2
Appears on pages(s):
171-189
Keywords:
boundary element; buckling; compression test; crossties; rectangular prism; special shear wall; strain capacity
DOI:
10.14359/51737236
Date:
3/1/2023
Abstract:
A laboratory test program studied the axial compressive behavior of rectangular prisms whose geometry modeled the rectangular boundary elements of thin shear walls. A primary test variable was the arrangement of longitudinal and transverse reinforcement. The prisms experienced compressive failure involving concrete crushing and longitudinal reinforcement buckling that was concentrated
along a height on the order of two to three times the prism
thickness. Asymmetric spalling typically resulted in eccentric
forces and led to out-of-plane instability. The localization of the
compressive failures leads to the conclusion that flexural response of thin walls satisfying current detailing practices will be relatively brittle if failure is controlled by crushing of the boundary elements. Axial strain capacities are reported for regions within the specimens where plasticity concentrates.