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

Figure 8.5 shows a discontinuous plywood joint located in the Loading Frame prior to testing.FIGURE 8.5 : Shows a typical portal frame with discontinuous plywood jointsIdentifying the portal joints thus:• plywood continuous across the portal leg as shown in Figure 8.5, as TP1;• plywood continuous around the joint at the portal leg/beam joint as TP2;• bolted joint as TP3;• rodded joint as TP4Portal Joint Racking ResistancesThe racking resistances assigned herein to the four portal joints can only be applied in the designsituation provided they meet all of the stated criteria.Portal Joints TP1 and TP2The racking resistance of these two joints depend entirely upon the plywood and its fixity to the timberframing.PlywoodFramingNailingTie down BoltsPORTAL JOINTS – TP1 AND TP2– 7mm DD F8 (minimum)– 90 x 45 MGP10, JD5 (minimum)Framing procedures to follow those given in Figures 3 and 4 of theResearch Proposal in Appendix A1– 2.8 ø x 35 long galvanised clouts– 3.15 ø x 75 bullet head nails (1 off into end grain of stiffeners and studs)– 50 / 50 nailing pattern– M12 with nuts and 50 x 50 x3 washersBRACING CAPACITY : 3.75 kN/m81