Title:
Monolithic and Cyclic Behavior of Deep Beams Designed Using Strut-and-Tie Models
Author(s):
Sergio M. Alcocer and Claudia M. Uribe
Publication:
Structural Journal
Volume:
105
Issue:
3
Appears on pages(s):
327-337
Keywords:
beam; seismic; shear strength; strain; strut-and-tie
DOI:
10.14359/19792
Date:
5/1/2008
Abstract:
Experimental evidence regarding the behavior of four simply supported deep beams subjected to monotonic and reversed cyclic loads is provided. The adequacy of using a strut-and-tie model for seismic design was assessed. Other variables were the development length of the main flexural reinforcement and the amount of stirrup reinforcement used for confinement of bar anchorage above the supports. Results were examined against design provisions given in Appendix A of ACI 318-05 and in the 1996 FIP Recommendations. Results indicate that reversed cyclic shear demands up to 0.42vfc' (MPa) (5.0vfc' [psi]) and inelastic deformation demands up to 2.3% do not negatively affect the performance and, hence, that current provisions for strut-and-tie models may be used in seismic design.