Estimation of peak inelastic deformation demands is a key component of any displacement-based procedure for earthquake-resistant design of new structures or for seismic evaluation of existing structures. On the basis of the results of over a thousand non-linear dynamic analyses, rules are developed for the estimation of mean and upper-characteristic peak inelastic interstorey drifts and member chord rotations in multistorey RC frame buildings, either bare or infilled in all storeys but the first. For bare frame structures, mean inelastic deformation demands can be estimated from a linear, equivalent static, or preferably multimodal response spectrum analysis with 5 per cent damping and with the RC members considered with their secant stiffness at yielding. 95 per cent characteristic values can be estimated as multiples of the mean deformations. For open-first-storey buildings, the linear analysis can be equivalent static, with the infills modelled as rigid bidiagonal struts and all RC members considered with their secant stiffness to yielding. Copyright © 1999 John Wiley & Sons, Ltd.
[1]
Gian Michele Calvi,et al.
Displacement-based seismic design of multi-degree-of-freedom bridge structures
,
1995
.
[2]
John W. Wallace.
New Methodology for Seismic Design of RC Shear Walls
,
1994
.
[3]
Nelson Lam,et al.
The ductility reduction factor in the seismic design of buildings
,
1998
.
[4]
A. Ang,et al.
Mechanistic Seismic Damage Model for Reinforced Concrete
,
1985
.
[5]
Y. K. Wen,et al.
Damage-Limiting Aseismic Design of Buildings
,
1987
.
[6]
J. P. Moehle,et al.
Displacement-Based Design of RC Structures Subjected to Earthquakes
,
1992
.
[7]
Eduardo Miranda,et al.
Evaluation of site-dependent inelastic seismic design spectra
,
1993
.