WIT Press

Analysis Of Re Frames With Cracked Interfaces Beam-column Joints Under Earthquake Excitations

Price

Free (open access)

Paper DOI

10.2495/ERES960351

Volume

23

Pages

10

Published

1996

Size

535 kb

Author(s)

F. Romano

Abstract

The analysis of re structures subjected to earthquake ground motion is carried out. After the cracking of the interface, the beam-column joints are modelled with rotational connections with stiffness depending on the bond-slip of the anchored bars in the joints and on the plastic strains of the rebar. Although the attention is principally focused to the modelling of the beam-column joints, all structural members are considered with elasto-plastic stress-strain laws. The moment-rotation envelope of the rotational connections obtained from the dynamic analysis can be utilised to evaluate the slip of the reinforcing bars in order to avoid bond damage in the joints. 1 Introduction During severe earthquake it is an accepted design philosophy to allow structure to exceed elastic limit so that a considerabl

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