Long Span Roofing || Techniques in Architecture || Components, Various materials, Span and uses

 

1) Truss Roof

    a) Triangular frames that distributes weight across large spans

    b) Assembled using rafters, tie beam and struts

    c) Can be made using steel or aluminum

    d) Have a span of 30-80 meters

    e) Used in industries, warehouse, public halls

2) Tensile roof

    a) Flexible fabric material is stretched over a framework of cables

    b) Assembled using steel masts, cables and anchorages

    c) Can be made using PVC, PTFE/Teflon fabric

    d) Have a span of 40-60 m

    e) Used in Pavilions, exhibition halls

3) Space frames

    a) 3d truss system with struts interconnected in geometric pattern

    b) Assembled using hollow steel members, nodes and base plates

    c) Made of steel, aluminum or composite materials

    d) Have a span of 60-150 m

    e) Used in stadiums, airports, malls, atriums 

4) Shell roof

    a) Thin curved roof system that allows large unsupported spans

    b) constructed using custom formwork, steel bars and concrete

    c) can be made of RCC, steel or bamboo

    d) Have a span of 30-70 m

    e) Used in sports arena, convention hall, museums 

5) Geodesic Dome

    a) Spherical roof made from a network of triangular steel members

    b) Assembled using hollow steel struts, nodes and base plates

    c) can be made of wood, steel or plastic

    d) Have a span of 30-50 m

    e) Used in Greenhouse, exhibition hall, glamp tents

Source: Click!