Determine the force in each member of the roof truss shown. State whether each member is in tension (T) or compression (C). 6 m 6m 6 m 1.2 kN 2.4 kN F 2.4 kN D 1.2 kN 7.5 m B E 9 m 9 m Fia RG 13

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Stair construction and layout

Stair is a type of vertical transportation in a building which consist of a series of steps in a flight of stairs that enable the vertical movement of people and materials from one floor to another. A staircase consists of steps that comprises of riser & tread, handrail, baluster, stair stringers, newel post and waist slab. The construction of staircase with all the components is termed as stair construction. A staircase is an enclosure that contains the entire stairway. The materials used for the construction of stairs are bricks, reinforced cement concrete, stone, lumber, steel and a combination of these materials.