Earthquakes and Structures
- Volume 10 Issue 5
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- Pages.1125-1141
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- 2016
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- 2092-7614(pISSN)
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- 2092-7622(eISSN)
DOI QR Code
Direct displacement based seismic design for single storey steel concentrically braced frames
- Salawdeh, Suhaib (Civil Engineering, College of Engineering & Informatics, National University of Ireland) ;
- Goggins, Jamie (Civil Engineering, College of Engineering & Informatics, National University of Ireland)
- Received : 2015.07.25
- Accepted : 2016.02.15
- Published : 2016.05.25
Abstract
The direct displacement based design (DDBD) approach is spreading in the field of seismic design for many types of structures. This paper is carried out to present a robust approach for the DDBD procedure for single degree of freedom (SDOF) concentrically braced frames (CBFs). Special attention is paid to the choice of an equivalent viscous damping (EVD) model that represents the behaviour of a series of full scale shake table tests. The performance of the DDBD methodology of the CBFs is verified by two ways. Firstly, by comparing the DDBD results with a series of full-scale shake table tests. Secondly, by comparing the DDBD results with a quantified nonlinear time history analysis (NLTHA). It is found that the DDBD works relatively well and could predict the base shear forces (
Keywords
concentrically braced frames;displacement based design;shake table tests;nonlinear time history analysis;seismic design;equivalent viscous damping
Acknowledgement
Supported by : Science Foundation Ireland Marine Renewable Energy Ireland (MaREI)
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