Load Redistribution of Cracked Girders

by Conrad P. Heins, (M.ASCE), Prof.; Inst. of Physical Science and Tech. and Civ. Engrg. Dept., Univ. of Maryland, College Park, Md. 20742,
Hisato Kato, Grad. Research Asst.; Civ. Engrg. Dept., Univ. of Maryland, College Park, Md. 20742,


Serial Information: Journal of the Structural Division, 1982, Vol. 108, Issue 8, Pg. 1909-1915


Document Type: Journal Paper

Abstract: Design of many bridges is controlled by the fatigue requirements. Such control can be minimized if the classification from a non-redundant to redundant structure is selected. Such a classification may be selected, if secondary members are considered in the design. In order to illustrate such effects, a two girder system is examined, with and without bottom lateral bracing. One girder is considered in a cracked and uncracked flange condition. The preliminary results show the effect bracing has on the load redistribution.

Subject Headings: Bridge design | Girders | Bracing | Cracking | Load factors | Fatigue (material) | Structural control

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