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Field Performance of Timber Bridges. 11. Spearfish Creek Stress-Laminated Box-Beam Bridge

J. P. Wacker / M. A. Ritter / K. Stanfill-McMillan / N. T. Brown / J. R. Becker

The Spearfish Creek Bridge was constructed in 1992 in Spearfish, South Dakota. It is a single-span, stress-laminated, box-beam superstructure. Performance of the bridge is being monitored for 5 years, beginning at installation. This report suummarizes results for the first 3 1/2 years of monitoring and includes information on the design, construction, and field evaluations of the wood moisture content, force level in the stressing bars, behavior under static loading, and overalls structure condition. Based on field evaluations, the bridge is performing satisfactorily with no structural or serviceability deficiencies. However, two bridge restressings were performed due to excessive bar force loss.

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Field Performance of Timber Bridges. 11. Spearfish Creek Stress-Laminated Box-Beam Bridge

J. P. Wacker / M. A. Ritter / K. Stanfill-McMillan / N. T. Brown / J. R. Becker

The Spearfish Creek Bridge was constructed in 1992 in Spearfish, South Dakota. It is a single-span, stress-laminated, box-beam superstructure. Performance of the bridge is being monitored for 5 years, beginning at installation. This report suummarizes results for the first 3 1/2 years of monitoring and includes information on the design, construction, and field evaluations of the wood moisture content, force level in the stressing bars, behavior under static loading, and overalls structure condition. Based on field evaluations, the bridge is performing satisfactorily with no structural or serviceability deficiencies. However, two bridge restressings were performed due to excessive bar force loss.

Field Performance of Timber Bridges. 11. Spearfish Creek Stress-Laminated Box-Beam Bridge

J. P. Wacker / M. A. Ritter / K. Stanfill-McMillan / N. T. Brown / J. R. Becker

The Spearfish Creek Bridge was constructed in 1992 in Spearfish, South Dakota. It is a single-span, stress-laminated, box-beam superstructure. Performance of the bridge is being monitored for 5 years, beginning at installation. This report suummarizes results for the first 3 1/2 years of monitoring and includes information on the design, construction, and field evaluations of the wood moisture content, force level in the stressing bars, behavior under static loading, and overalls structure condition. Based on field evaluations, the bridge is performing satisfactorily with no structural or serviceability deficiencies. However, two bridge restressings were performed due to excessive bar force loss.

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Title:

Field Performance of Timber Bridges. 11. Spearfish Creek Stress-Laminated Box-Beam Bridge

Contributors:

J. P. Wacker (author) / M. A. Ritter (author) / K. Stanfill-McMillan (author) / N. T. Brown (author) / J. R. Becker (author)

Publication date:

1997

Size:

20 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Wood & Paper Products , Wooden bridges , South Dakota , Performance evaluation , Design criteria , Construction , Loads(Forces) , Spearfish(South Dakota) , TBI(Timber Bridge Initiative)

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