Assessment task 3: Timber Design Figure {a} below shows a mono truss that will be used for the extension of a council building to be built in Dubbo, NSW. The timber species used in the truss is Seasoned Radiata Pine. For analysis purposes, all members of the thss can be assumed to be ginjointed. The tn'butary area supported by the mono truss is 16m by T.5m in plan projection. You are required to check the connection at node 2 {Figure {a} and {b}}. All the members at node 2 haye a crosssection of 15Dx5tlmm. The side plates to be used at node 2 are also from Radiata Pine and are 35mm thicl-t. Analyse the thss and identify the force in members connected to the joint. Also determine the critical load case and relevant values of k1. Point loads F1 and F2 applied at joint 2 and 4 represent the Permanent and Imposed loads on the thss, respectively, where the imposed load is occupancy liye load. Selfweight of the timber can be ignored in the analysis and design of the truss. Possible load combinations as per ASHTUD {EDGE} are: .356 1. 1 2. 1.26 +1.51} F1218 kN {Permanent load) F2: 2.3 kN {Imposed load considered as 5 months duration load} You are first required to analyse the truss to find the internal actions on joint 2 for both load combinations. Based on the calculated internal actions for the two load cases, you are then required to undertake two design checks as detailed below. Members of the bottom chord are connected using 60mm long $2.5 nails {Figure {c}, Section S-S}. Check the suitability of the pint to carry the design load. The vertical member is connected using an M1 bolt {Figure {c}, Section AA]. lCheck: the suitability of the joint to cargg the design load