Abstract
The need for a new high capacity strand post-tensioning system in the United States, was apparent by late 1967. The demand for long span, cast-in-place post-tensioned structures in the United States seemed certain to expand rapidly, and comparative costs of tendon materials indicated that strand would economically meet this growing need. Pullthrough tendon systems, which require neither fixed tendon lengths nor factory-attached anchorages, have considerable cost advantages for long span cast-in-place bridges, buildings, and nuclear reactor containment structures. Existing European pull-through tendon systems were well represented in the United States and licenses were unavailable. In response to these factors the authors began development of the S/H Wedge Anchorage System.
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