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Direct displacement based seismic design for single storey steel concentrically braced frames
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  • Journal title : Earthquakes and Structures
  • Volume 10, Issue 5,  2016, pp.1125-1141
  • Publisher : Techno-Press
  • DOI : 10.12989/eas.2016.10.5.1125
 Title & Authors
Direct displacement based seismic design for single storey steel concentrically braced frames
Salawdeh, Suhaib; Goggins, Jamie;
 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 () and the required brace cross sectional sizes of the actual values obtained from shake table tests and NLTHA. In other words, when comparing the ratio of estimated from the DDBD to the measured values in shake table tests, the mean and coefficient of variation () are found to be 1.09 and 0.12, respectively. Moreover, the mean and of the ratios of estimated from the DDBD to the values obtained from NLTHA are found to be 1.03 and 0.12, respectively. Thus, the DDBD methodology presented in this paper has been shown to give accurate and reliable results.
 Keywords
concentrically braced frames;displacement based design;shake table tests;nonlinear time history analysis;seismic design;equivalent viscous damping;
 Language
English
 Cited by
1.
Shake Table Testing of Concentrically Braced Steel Structures With Realistic Connection Details Subjected to Earthquakes, Structures, 2018, 13, 102  crossref(new windwow)
2.
Shake table assessment of gusset plate connection behaviour in concentrically braced frames, Journal of Constructional Steel Research, 2017, 138, 432  crossref(new windwow)
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