What is the difference between Anchorages and Hold-downs?
CSA Standard O86-01 Engineering Design in Wood allows for shearwalls to be designed to resist overturning using either hold-down connections or anchorages at the ends of each shearwall segment. A complete description can be found in Chapter 9 – Shearwalls and Diaphragms of the CWC publication Wood Design Manual 2001. The software allows for shearwall design using hold-downs and/or anchorages. Lateral force acting on the top plate of a shearwall segment tends to overturn the segment. To resist this overturning force, traditional shearwall designs include hold-down connections at the end of any segment subject to overturning. A hold-down connection normally consists of steel brackets, anchor bolts and/or a threaded rod connecting the tension end-stud of the shearwall segment to either the foundation or to a lower level shearwall (refer to figure 9.7 of the Wood Design Manual). If hold-down connections are included in the design, the overturning force is transferred from the top chord dir
