Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/216313

Title

Displacement-based assessment of non ductile exterior wide band beam-column connections

Author(s)

Goldsworthy, Helen Margaret;  Abdouka, Kamiran

Abstract

Results from testing two half-scale exterior wide band beam-column sub-assemblages under cycles of lateral displacement are presented in this article. The first subassemblage represents the current level of detailing adopted in low to moderate seismic regions, such as Australia, for connections where seismic provisions are not normally a consideration in design. Minor (inexpensive) detailing changes in the reinforcement distribution and anchorage were introduced to the second test specimen. These changes significantly improved the connection performance in terms of increased displacement capacity and a reduction in strength deterioration. Using a displacement-based assessment approach to assess primary moment-resisting band beam frames of up to eight stories, it was found that the current level of detailing is adequate for the drift demands resulting from the expected Australian seismicity for a 500-year return period. However, for the displacement demands corresponding to a 2500-year return period, the frames sited on very soft soils and frames over four stories sited on intermediate soils would require improved detailing such as that used in the second sub-assemblage. A strength hierarchy of strong column-weak beam was assumed in this assessment.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Journal of Earthquake Engineering, Vol. 16, no. 1 (2012), pp. 61-82

Publication year

2012

FOR Code(s)

0905 Civil Engineering

Keyword(s)

Band beams;  Displacement-based assessment;  Drift capacities;  Drift demands;  Exterior connections;  Frames;  Reinforced concrete

Publisher

Taylor & Francis

ISSN

1363-2469

Publisher URL

http://dx.doi.org/10.1080/13632469.2011.597488

Copyright

Copyright © A. S. Elnashai & N. N. Ambraseys.

Additional information

The authors acknowledge support from the Australian Research Council under large grant number 896018878, One Steel (formerly BHP Steel), AJAX fasteners and VSL Prestressing.

Peer reviewed