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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Effects of Support Settlement in Concrete Members
Author(s): M. K. Tadros,A. Yousef, and Y. S Joo
Publication: Special Publication
Appears on pages(s): 185-214
Keywords: beams (supports); bridges (structures); computer programs; cracking (fracturing); creep properties; settlement (structural); shrinkage; stiffness; strains; stresses; structural analysis; Structural Research
Abstract:Deals primarily with statically indeterminate beams where settlement of the supports can produce stresses. A method of estimating the effects of support settlement is presented. The method accounts for the fact that soil consolidation and the corresponding support settlement often develop over an extended period of time. The method also demonstrates that creep of concrete can reduce the ultimate settlement-induced stresses in uncracked members by as much as 60 percent of the elastic values. Furthermore, flexural cracking of concrete results in reduction of the member stiffness. This corresponds to further relief of the settlement-induced stresses. Field studies on the effects of settlement in several bridges are presented. The relationship between the amount of settlement and its structural effects is illustrated.
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