chapter 3.pptx - Further Technical Features of Warehouses...

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Further Technical Features of Warehouses and Distribution Centres Mulder and Kobussen Chapter 3
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3.1 Storage 1. Structural System 2. Roofs 3. Floors and Walkways 4. Doors 5. Ventilating 6. Electrical installations
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3.1.1 Structural System The structural system of the building must be noncombustible materials. Roof joist; the roof joist should be open web steel support on masonry load bearing walls/steel wide flange beams and steel columns. Exterior aesthetics; exterior aesthetics of the storage building should match the architectural style and materials of the surrounding structures. Walls; walls should be cavity types- concrete masonry unit with face brick, concrete insulated tilt up or factory coated insulated metal planes. Load bearing wall foundation; should be reinforced concrete on continuous concrete spread footings as a standard or grout filled masonry block. Exterior finish; of the enclosed unheated storage building should be a system with a warranted life expectancy of 25 years.
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3.1.1 Structural System The building or frame must be strong enough to hold the weight of the roof structure, any monorail and loads, overhead cranes and wind force. Building materials, for the walls/frames will depend on materials available, budget and local building regulations.
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3.1.2 Roofs Roof supports and cladding need to be designed and maintained as carefully as the building itself. Roof supports The strength of roof supports depends on whether they are to hold the weight of the roof only OR if they bear overhead conveyors or lifting gear as well. The strength of roof supports depends upon the design, type, natural of the roof and in addition wind pressure and seismic requirements. Roof Cladding Roof cladding in developing countries is usually; galvanized steel (GCI) OR corrugated sheets of asbestos cement or aluminum (AC). Other roofing materials like pantiles, slate or mangalore tiles are more expensive to buy but last long and are more attractive.
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3.1.2 Roofs Roof Treatments All construction materials should be suitably treated when used. Surface areas can deteriorate as a result of the effect of the weather on stored materials or weather conditions themselves. Other factors can have a corroding effect on roofing i.e. chemicals and fertilizes. Wooden trusses should be treated with preservative, to prevent termites or dry rot. Other materials require painting/galvanizing. Aluminum or corrugated iron roofs, are painted to firstly prevent corrosion, improve thermal efficiency and reduce glare.
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3.1.3 Floors and Walkways Various requirements for height and floor area, position of docks, doors and offices have been revealed by preliminary investigations. WH floors must be strong enough to bare the load of racks and stacks and dynamic loads, imposed by moving trucks.
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