Mathematical modelling of a "post-Northridge" steel connection

Ali Mehrabian, Achintya Haldar

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A robust mathematical model to capture the behaviour of an attractive "post-Northridge" type, Partially Restrained (PR) steel connection is proposed. The proposed procedure captures the loading behaviour for this type of connection reasonably well. It is suggested that the unloading and reloading parts of M - θ curves required for seismic analysis can be theoretically generated by using the Masing Rule. This study confirms some of the important desirable features of the connection. Although it is a PR connection, its initial stiffness is similar to that of bolted, a single web angle with top and seat connection, generally considered to be a Fully Restrained (FR) connection. Thus, a steel frame with the connection studied is not expected to show weakness in satisfying serviceability requirements. Furthermore, the beam develops full plastic moment and the ductility of the connection and its seismic energy dissipation characteristics are expected to be significantly improved.

Original languageEnglish (US)
Pages (from-to)195-207
Number of pages13
JournalInternational Journal of Modelling, Identification and Control
Volume2
Issue number3
DOIs
StatePublished - 2007

Fingerprint

Mathematical Modeling
Steel
Ductility
Energy Dissipation
Seats
Unloading
Plastics
Stiffness
Energy dissipation
Mathematical Model
Mathematical models
Moment
Angle
Curve
Requirements

Keywords

  • Ductility
  • Earthquakes
  • Energy dissipation (connection)
  • Non-linear seismic analysis
  • Numerical analysis
  • Partially restrained connections
  • PR
  • Pre-Northridge and post-Northridge steel connections
  • Steel frames

ASJC Scopus subject areas

  • Computer Science Applications
  • Applied Mathematics
  • Modeling and Simulation

Cite this

Mathematical modelling of a "post-Northridge" steel connection. / Mehrabian, Ali; Haldar, Achintya.

In: International Journal of Modelling, Identification and Control, Vol. 2, No. 3, 2007, p. 195-207.

Research output: Contribution to journalArticle

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