Open AccessSome comments on reinforced concrete structures forming column hinge mechanisms
Author(s) -
Trevor E. Kelly
Publication year - 1977
Publication title -
bulletin of the new zealand society for earthquake engineering/nzsee quarterly bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.917
H-Index - 36
eISSN - 2324-1543
pISSN - 1174-9857
DOI - 10.5459/bnzsee.10.4.186-195
Subject(s) - hinge , structural engineering , dissipation , plastic hinge , reinforced concrete , strain hardening exponent , column (typography) , shear (geology) , hardening (computing) , shear wall , materials science , engineering , composite material , connection (principal bundle) , physics , thermodynamics , layer (electronics)
Three buildings relying on column hinge mechanisms for post-elastic energy dissipation were studied using an inelastic dynamic computer program. The structures were an eight storey wall structure with ground storey columns, an eight storey frame with rigid, non-yielding beams, and a single storey frame with rigid, non-yielding beams. Parameters varied were earthquake input, design base shear and strain hardening ratio. All structures exhibited deformations far in excess of deflections under code static loading. The eight storey structures showed a tendency towards incremental collapse from P-delta effects when low, probably realistic, strain hardening ratios were used.