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Cyclic loading behavior of EBF links constructed of ASTM A992 steel

Okazaki, Taichiro / Engelhardt, Michael D.

AbstractCyclic loading tests were conducted to study the behavior of link beams in steel eccentrically braced frames. A total of thirty-seven link specimens were constructed from five different wide-flange sections, all of ASTM A992 steel, with link length varying from short shear yielding links to long flexure yielding links. The occurrence of web fracture in shear yielding link specimens led to further study on the cause of these fractures. Since the link web fracture appeared to be a phenomenon unique to modern rolled shapes, the potential role of material properties on these fractures is discussed. Based on the test data, a change in the flange slenderness limit is proposed. The link overstrength factor of 1.5, as assumed in the current U.S. code provisions, appears to be reasonable. The cyclic loading history used for testing was found to significantly affect link performance. Test observations also suggest new techniques for link stiffener design and detailing for link-to-column connections.

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Cyclic loading behavior of EBF links constructed of ASTM A992 steel

Okazaki, Taichiro / Engelhardt, Michael D.

AbstractCyclic loading tests were conducted to study the behavior of link beams in steel eccentrically braced frames. A total of thirty-seven link specimens were constructed from five different wide-flange sections, all of ASTM A992 steel, with link length varying from short shear yielding links to long flexure yielding links. The occurrence of web fracture in shear yielding link specimens led to further study on the cause of these fractures. Since the link web fracture appeared to be a phenomenon unique to modern rolled shapes, the potential role of material properties on these fractures is discussed. Based on the test data, a change in the flange slenderness limit is proposed. The link overstrength factor of 1.5, as assumed in the current U.S. code provisions, appears to be reasonable. The cyclic loading history used for testing was found to significantly affect link performance. Test observations also suggest new techniques for link stiffener design and detailing for link-to-column connections.

Cyclic loading behavior of EBF links constructed of ASTM A992 steel

Okazaki, Taichiro / Engelhardt, Michael D.

AbstractCyclic loading tests were conducted to study the behavior of link beams in steel eccentrically braced frames. A total of thirty-seven link specimens were constructed from five different wide-flange sections, all of ASTM A992 steel, with link length varying from short shear yielding links to long flexure yielding links. The occurrence of web fracture in shear yielding link specimens led to further study on the cause of these fractures. Since the link web fracture appeared to be a phenomenon unique to modern rolled shapes, the potential role of material properties on these fractures is discussed. Based on the test data, a change in the flange slenderness limit is proposed. The link overstrength factor of 1.5, as assumed in the current U.S. code provisions, appears to be reasonable. The cyclic loading history used for testing was found to significantly affect link performance. Test observations also suggest new techniques for link stiffener design and detailing for link-to-column connections.

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Title:

Cyclic loading behavior of EBF links constructed of ASTM A992 steel

Contributors:

Okazaki, Taichiro (author) / Engelhardt, Michael D. (author)

Published in:

Journal of Constructional Steel Research ; 63 ; 751-765

Publication date:

2006-08-08

Size:

15 pages

ISSN:

DOI:

https://doi.org/10.1016/j.jcsr.2006.08.004

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Cyclic tests , Steel structures , Seismic design , Flange slenderness ratio , Loading history , Fracture , k-area , Eccentrically braced frame

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