PREDICTION OF SEISMIC ENERGY-DISSIPATION IN SDOF SYSTEMS

Date

1995-09-01

Author

NURTUG, A
Sucuoğlu, Haluk

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

252
views

0
downloads

A simple analytical procedure is developed for calculating the seismic energy dissipated by a linear SDOF system under an earthquake ground excitation. The ground excitation is specified by its pseudo-velocity spectra and effective duration whereas the SDOF system is defined by its natural period of vibration and viscous damping ratio. However, the derived relationship for the energy dissipation demand under an earthquake excitation is sensitive neither to the viscous damping ratio nor the ductility ratio when the SDOF system undergoes inelastic response. Accordingly, the proposed relationship can be employed in an energy-based seismic design procedure for determining the required energy dissipation capacity of a structural system.

Subject Keywords

Geotechnical Engineering and Engineering Geology, Earth and Planetary Sciences (miscellaneous)

URI

https://hdl.handle.net/11511/48347

Journal

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

DOI

https://doi.org/10.1002/eqe.4290240904

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Prediction of input energy spectrum: attenuation models and velocity spectrum scaling Alici, F. S.; Sucuoğlu, Haluk (Wiley, 2016-10-25) Recent improvements in performance-based earthquake engineering require realistic description of seismic demands and accurate estimation of supplied capacities in terms of both forces and deformations. Energy based approaches have a significant advantage in performance assessment because excitation and response durations, accordingly energy absorption and dissipation characteristics, are directly considered whereas force and displacement-based procedures are based only on the maximum response parameters. En...
Generalized force vectors for multi-mode pushover analysis of torsionally coupled systems Kaatsız, Kaan; Sucuoğlu, Haluk (Wiley, 2014-10-25) A generalized multi-mode pushover analysis procedure was developed for estimating the maximum inelastic seismic response of symmetrical plan structures under earthquake ground excitations. Pushover analyses are conducted with story-specific generalized force vectors in this procedure, with contributions from all effective modes. Generalized pushover analysis procedure is extended to three-dimensional torsionally coupled systems in the presented study. Generalized force distributions are expressed as the com...
Evaluation of displacement coefficient method for seismically retrofitted buildings with various ductility capacities Dicleli, Murat (Wiley, 2014-07-25) This research study is aimed at evaluating the accuracy of the displacement coefficient method (DCM) of FEMA 440 and associated nonlinear static procedure (NLSP) for actual buildings with soft story mechanism and various ductility capacities. The DCM and associated NLSP are evaluated using two existing seismically vulnerable buildings with soft story mechanism. The buildings are first retrofitted using a ductile steel-brace-link system to represent those with good ductility capacity and then retrofitted wit...
An improvement to linear-elastic procedures for seismic performance assessment Gunay, Mehmet Selim; Sucuoğlu, Haluk (Wiley, 2010-07-10) An improved linear-elastic analysis procedure is developed in this paper as a simple approximate method for displacement-based seismic assessment of the existing buildings. The procedure is mainly based on reducing the stiffness of structural members that are expected to respond in the inelastic range in a single global iteration step. Modal spectral displacement demands are determined from the equal displacement rule. Response predictions obtained from the proposed procedure are evaluated comparatively by ...
Torsional ductility spectrum for predicting ductility distribution in simple asymmetric-plan structures Sucuoğlu, Haluk (Wiley, 2020-09-01) An analytical procedure is developed for predicting the ductility demands in simple asymmetric-plan structures under earthquake ground motions. The procedure governs regular structures dominated by the lower vibration modes where inelastic response occurs only at the bases of first story columns and at the beam ends, in conformance with the capacity design principles.Torsional ductility spectraare generated for expressing the maximum ductility response of torsionally coupled, generic, single-story, 2-degree...

Citation Formats

A. NURTUG and H. Sucuoğlu, “PREDICTION OF SEISMIC ENERGY-DISSIPATION IN SDOF SYSTEMS,” EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, pp. 1215–1223, 1995, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48347.