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- W629355452 abstract "Fields tests were conducted on a skewed simple span bridge to evaluate existing design standards for predeflected (Preflex) steel-concrete composite beams. The test program consisted of midspan vertical displacement (deflection) measurements of these beams under initial and long-term dead loads, and visual inspection of the concrete for crack development. The results of 2 years of observations are presented and compared to theoretical values. Although interior-girder precompressed concrete did creep, thereby losing precompressive force, concrete cracking was minor, indicating that the losses were not severe. Deflections stabilized after 1 year, indicating that no further precompressive losses from creep need be expected. The widths of web and haunch cracks have exceeded recommended maximum allowable limits, but these cracks are not considered structurally detrimental at this time. These results show that the structure's initial and long-term performance has been satisfactory. /Author/" @default.
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- W629355452 date "1974-08-01" @default.
- W629355452 modified "2023-09-26" @default.
- W629355452 title "FIELD STUDY OF A PREDEFLECTED STEEL-CONCRETE COMPOSITE BRIDGE" @default.
- W629355452 hasPublicationYear "1974" @default.
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