About the author  ⁄ Luis F. Estenssoro, Ph.D., S.E., P.E.

Luis F. Estenssoro, Ph.D., S.E., P.E., is a Principal with Infrastructure Consultants, Engineers LLC in Englewood, CA. He may be reached at lfestenssoro@gmail.com.

A new repair method was implemented to restore the structural integrity of precast double-tee stems that have lost their prestressing strands due to physical damage or corrosion. The repair method is intended for strands that are closely spaced, where currently available strand splices cannot be used without modification. Pressure jackets are used to splay the wire strands apart and align them with splices in order to re-stress the strand to the original pre-load.

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STRUCTURE magazine