Archive for January, 2010

Tubular Steel Roof Truss | Trussed large span Constructions

Tubular Steel roof trusses are used for large span constructions such as factories, industry worksheds, shopping malls, huge exhibition centres, multiplexes etc. They are generally used for spans as large as 25-30m.

There is a similar kind of a truss called “Tubular Steel Monitor Roof Truss“. There are projections on the roofs called “Monitors” to admit daylight into the space.

Tubular Steel Roof Truss

Tubular Steel Roof Truss

  • It is in two halves with bolted joints at P and Q, the remaining joints being 5mm fillet welds made in the workshop.
  • The main tie member rises 130mm from L to N to counteract any appearance of sag that would be evident if it were horizontal.
  • A bend a N reduces the midspan height to 2m so that the half truss is a manageable size for transportation.

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Dormer Window | Architectural Construction

A dormer window is a structural element in a building which are constructed on the sloping roofs. Dormer Windows protrude from the plane of the sloping surface of the roof.

Dormers

Dormers - as an architectural feature

  • A dormer window maybe constructed during the construction of the building or could be an addition to create a habitable space where the height of the pitched roof is very high.
  • As the name “Dormer Window” suggests, it a window set in a dormer and hence termed as Dormer Window.
  • Like skylights, dormer windows are used as a source of light and ventilation but unlike skylights they are used to provide habitable space in the pitched roof construction…


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