Bending Behavior of Steel Pipe Girders Filled with Ultralight Mortar
Publication: Journal of Bridge Engineering
Volume 9, Issue 3
Abstract
Bending behavior of steel pipes filled with ultralight mortar was studied by bending tests using a steel pipe, steel pipes filled with ultralight mortar, and steel pipes filled with light aggregate concrete and normal concrete. The steel pipe model filled with normal concrete had 1.8 times higher bending strength than the steel pipe model. The bending behavior of the steel pipe filled model with ultralight mortar was not improved when the compressive strength of the ultralight mortar was less than 1 MPa. However, ductility was much improved when the compressive strength was over 5 MPa, and the ultimate steel strain was more than double of the steel pipe model. The strains of steel and concrete in all the models were proportional to the distance from the neutral axis until the steel plate yielded. A simple analytical method was proposed to calculate the bending moments of the ultralight mortar filled steel pipes. The calculated values agreed very well with the test results.
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References
Hosaka, T., Nakamura, S., Umehara, R., and Nishiumi, K. (1997). “Design and experiments on a new railway bridge system using concrete filled steel pipes.” IABSE Symp. in Innsbruck, IABSE, Zurich, 367–372.
Japanese Society of Civil Engineers (JSCE). (1996). Standard specification for concrete, Chapter of design, Japanese Society of Civil Engineers, Tokyo.
Mander, J. B., Priestly, M. J. N., and Park, R. (1988). “Theoretical stress-strain model for confined concrete.” J. Struct. Eng., 114, 1804–1826.
Nakamura, S.(1998). “Design strategy to make steel bridges more economical.” J. Constr. Steel Res., 46(48), 1–16.
Nakamura, S.(2000). “New structural forms for steel/concrete composite bridges.” Struct. Eng. Int. (IABSE, Zurich, Switzerland), 10(1), 45–50.
Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 9 • Issue 3 • May 2004
Pages: 297 - 303
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jul 15, 2002
Accepted: Aug 15, 2003
Published online: Apr 15, 2004
Published in print: May 2004
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