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Deformation capacity of ultra‐high strength concrete flexural elements subjected to inelastic load reversals
Author(s) -
Elmenshawi Abdelsamie,
Brown Tom
Publication year - 2012
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.633
Subject(s) - flexural strength , reinforcement , brittleness , ductility (earth science) , materials science , structural engineering , deformation (meteorology) , beam (structure) , shear (geology) , composite material , transverse plane , shear strength (soil) , hinge , geotechnical engineering , geology , creep , engineering , soil water , soil science
SUMMARY Ductility and plastic rotational capacity of flexural elements constructed with concrete strengths up to 175 MPa were investigated experimentally. Ten exterior beam–column sub‐assemblages were tested under cyclic displacements that represented a severe seismic event. The test variables included the concrete strength, the bottom/top reinforcement ratio, the transverse reinforcement ratio, and the shear‐span‐to‐depth ratio. The increase of concrete brittleness with the higher strength concretes did not inhibit the reinforced concrete flexural elements from attaining comparable ductility and deformation capacity with respect to counterpart elements constructed with normal strength concrete. However, the maximum concrete strength that could be used in achieving highly ductile elements depended on the other test variables of the beam element including the bottom/top reinforcement ratio, the transverse reinforcement ratio in the hinge region, and the shear‐span‐to‐depth ratio. Copyright © 2010 John Wiley & Sons, Ltd.