EWPAA Structural Plywood and LVL Design Manual - Engineered ...

ELEVATIONFIGURE 9.14: Shearwall with openingShearwalls Worked Example 1 - Accepted SolutionConsiders the 600 and 900 lengths of shearwall to act independently of each other. The racking load perpanel being in the ratio of their width, i.e. the 600 panel would take 600/1500 of the 4.5 kN (1.8kN) and the900 panel would take 900/1500 of 4.5 kN (2.7 kN).Tie-down at the ends of the panels (can be loaded in either direction) is:1.8 x 2.4= 7.6kN;0.62.7 x 2.4= 7.6kN0.9The unit shear to be resisted in each panel is 1.8 / 0.6 = 3 kN/m and 2.7/0.9 = 3 kN/m. However, the upliftat the panel end is 7.6 kNFor the 600 panel to attain 3 kN/m would require it to be fitted with coach screws and washers at its fourcorners as per Table 9 EWPAA Wall Bracing Limit State Design Manual.Shearwalls – Worked Example 1 - Alternative Solution:An alternative approach takes into account the contribution made by the panel under the window. FIGURE9.15 shows the free body diagram of the shearwall, neglecting the contribution of the section above thewindow.FIGURE 9.15: Free body diagram of shearwall112