Building Construction Handbook, Eighth Edition
Further typical details using profiled galvanised steel or aluminium, colour coated if required ~ RIDGE cranked one-piece profil ...
Long Span Roofs ~ these can be defined as those exceeding 12„000 in span. They can be fabricated in steel, aluminium alloy, timb ...
Pitched Trusses ~ these can be constructed with a symmetrical outline (as shown on pages 562 to 563) or with an asymmetrical out ...
Monitor Roofs ~ these are basically a flat roof with raised glazed portions called monitors which forms aroof having a uniform d ...
Flat Top Girders ~ these are suitable for roof spans ranging from 15„000 to 45„000 and are basically lowpitched lattice beams us ...
Bowstring Truss ~ a type of lattice truss formed with a curved upper edge. Bows and strings may be formed in pairs of laminated ...
Belfast Truss ~ established as one of the earliest forms of bowstring truss for achieving an efficient and economical roof const ...
Bowed Lattice Truss Details ~ Bowstring ~ steel or softwood fishplate (x2) laminated bow (x2) bracket or block strut bows ties s ...
Connections ~ nails, screws and bolts have their limitations when used to join structural timber members. The low efficiency of ...
Space Deck ~ this is a structural roofing system based on a simple repetitive pyramidal unit to give large clear spans of up to ...
Space Frames ~ these are roofing systems which consist of a series of connectors which joins together the chords and bracing mem ...
Shell Roofs ~ these can be defined as a structural curved skin covering a given plan shape and area where the forces in the shel ...
Barrel Vaults ~ these are single curvature shells which are essentially a cut cylinder which must be restrained at both ends to ...
NB. ribs not connected to support columns will set up extra stresses within the shell roof therefore extra reinforcement will be ...
Other Forms of Barrel Vault ~ by cutting intersecting and placing at different levels the basic barrel vault roof can be formed ...
Hyperbolic Paraboloids ~ the true hyperbolic paraboloid shell roof shape is generated by moving a vertical parabola (the generat ...
Typical Straight Line Limited Hyperbolic Paraboloid Formats ~ Shell Roof Construction ...
Concrete Hyperbolic Paraboloid Shell Roofs ~ these can be constructed in reinforced concrete (characteristic strength 25 or 30 N ...
Shell Roof Construction ...
A form of stressed skin reinforced concrete construction also known as folded plate construction. The concept is to profile a fl ...
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