Structural Testing of Enhanced Post-Tensioned Concrete Masonry Walls

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Title: Structural Testing of Enhanced Post-Tensioned Concrete Masonry Walls

Author(s): Peter T. Laursen and Jason M. Ingham

Publication: Structural Journal

Volume: 101

Issue: 6

Appears on pages(s): 852-862

Keywords: concrete masonry; design; post-tensioning; prestressing; seismic; test; wall

Date: 11/1/2004

Abstract:
The in-plane response of post-tensioned concrete masonry walls with unbonded tendons, incorporating strengthened masonry and enhanced energy dissipation, is examined by means of structural testing. An introduction to the testing program is followed by a presentation of the results from structural testing of five fully grouted walls. Discussion of the results is concerned with wall structural response in terms of flexural strength, displacement capacity, tendon stress, and masonry vertical strain, and makes comparison with testing of unconfined (ordinary) post-tensioned concrete masonry walls.