Civil Engineering Association

Prediction of vertical deflections for a long span prestressed concrete bridge structure

This paper presents the results of a bridge monitoring program after nine years of data collection. The North Halawa Valley Viaduct on the Hawaiian island of Oahu was nstrumented extensively during construction in 1994. The objective of the instrumentation program was to monitor both short-term and long-term behavior of the viaduct. The primary instruments used for vertical deflection, span shortening, and concrete strain monitoring are described. Short-term vertical deflections and bending strains measured during a load test of the structure are compared with analytical predictions using a commercial finite element analysis program.

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carolinandra

carolinandra