- A Warehouse Will Be Built From Timber At The Western Sydney Industrial Park Penrith The 3d Architectural View And Plan 1 (60.71 KiB) Viewed 38 times
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Density of timber = 650kg/m^3
Total dead load = 1.0242 N/m
A warehouse will be built from timber at the Western Sydney Industrial Park, Penrith. The 3D architectural view and plan view of the proposed warehouse are given in Figure 1 and 2, respectively. The warehouse has an overall dimension of 24 m x 15 m. All other dimensions are shown in Figure 1 and 2. The warehouse will be built from timber roof trusses and timber wall frames. The trusses will be prefabricated. Access to the warehouse is through a 4m high door as shown in the figure. Windows are provided for lighting. The timber columns will be mounted over concrete foundation above 1 m from ground. The floor bearer will be supported over concrete foundations between two columns and at the centre (Figure 3).
8 m 2.5 m 2.5 m 2.5 m 2 m 5 24 m Floor level 15 m Figure 1: 3D View of proposed warehou Door 15 m 24 m A
Concrete foundation (1 m above ground level) Timber floor bearer 7.5 m 7.5 m Figure 3: Section A-A (Layout of timber floor bearer) 4. Loading • Permanent load: Self-weight of timber: Calculate based on the sections chosen. Details of load per metre length (kg/m) can be obtained from the manufacturer's specification. Cladding and roof sheeting: See AS1170.1:2002 for the self-weight of different construction materials • Bracing System: Calculate based on the chosen sections from your research work. • Imposed Load: The magnitude of live load is defined in AS1170.1:2002. • Wind Load : Assume the following average wind pressures normal to the top chord of the roof and normal to the walls. For the strength limit state: 2.5 kPa uplift pressure on both sides of the roof and 1.5 kPa outward pressure on the walls. - Consider wind uplift load combination only.
e. Detail Calculations Section A: Load Combinations (20 marks): - Calculate loads on purlins, trusses, columns, and floor. Consider dead load, live load and wind loads as appropriate. - Find the load combinations according to AS/NZS 1170.0:2002 and 1170.1:2002. Perform structural analysis for Strength Limit State (ULS) for the critical load combination only. Find the axial force, shear force and bending moment for the members. You can use Structural Analysis software e.g. Microstran. Section B: Design (70 marks). For the calculated member forces at ULS for critical load combinations in Section A, design all structural timber members. You are not required to design the concrete foundation. Choose appropriate timber sections and show the detail calculations for their adequacy. - Purlins [10 marks] Roof truss members and their connections [20 marks] Columns [10 marks) Connections for the roof truss to columns and columns to foundations [10 marks] - Floor [10] Structural bracing: research and provide details of 1 bracing system that could be adopted for the structure. [5 marks] - Provide a summary of timber specifications as given in Table A.1 [5 marks]. Section C: Design Sketches (10 marks) - Layout of trusses, purlins, columns, and bracing Truss members details Timber floor details Connection details