American Concrete Institute Announces Four New Publications

Requirements for Design of a Special Unbonded Post-Tensioned Precast Shear Wall (ITG 5.2-09)
This standard defines procedures that may be used to design special precast concrete shear walls, coupled or uncoupled, composed of discretely jointed precast panels that are vertically post-tensioned to the foundation with unbonded tendons. Such walls are suitable for use in regions of high seismicity and for structures assigned to high seismic design categories. This standard describes the procedures that the designer may use to demonstrate, through analysis, that one type of unbonded post-tensioned precast wall has strength and toughness at least equal to that of comparable special reinforced concrete monolithic walls. The standard consists of Design Requirements and a Commentary.

Publisher: American Concrete Institute
Publication Date: August 2009
Number of pages: 21
Order Code: ITG5209.PR
Price: $53.50 (ACI members $33.00)