Nees.org will be intermittently unavailable Wednesday, July 8, for scheduled maintenance. We apologize for any inconvenience.

Support

Support Options

Submit a Support Ticket

 

Final Report - Experimental Evaluation and Analytical Modeling of ACI318-05/08 Reinforced Concrete Coupling Beams Subjected to Reversed Cyclic Loading

Published on

Abstract

An efficient structural system for tall building construction to resist earthquake loads consists of reinforced concrete shear walls connected by diagonally reinforced coupling beams. Construction of coupling beams that satisfy the strength and detailing requirements set forth in ACI 318-05 for diagonally reinforced coupling beams is cumbersome and costly; therefore, ACI 318-08 provides a new detailing option which aims to improve the constructability while maintaining adequate strength and ductility. Eight half-scale specimens were tested to compare the performance of beams constructed utilizing new and old detailing options, to evaluate common modeling approaches, and to assess the impact of reinforced and post-tensioned slabs. Test results indicate that the new detailing approach provides equal, if not improved behavior as compared to the alternative detailing approach, that simple modeling approaches reasonably capture measured force versus deformation behavior, and that including a slab had only a modest impact on strength, stiffness, ductility, and observed damage. This report summarizes the results of these eight tests.

Cite this work

Researchers should cite this work as follows:

  • David Naish; John Wallace (2009), "Final Report - Experimental Evaluation and Analytical Modeling of ACI318-05/08 Reinforced Concrete Coupling Beams Subjected to Reversed Cyclic Loading," https://nees.org/resources/6996.

    BibTex | EndNote