Portal frame - Revision history

Ok at 00:48, 7 March 2010

2010-03-07T00:48:30Z

← Older revision		Revision as of 02:48, 7 March 2010
Line 1:		Line 1:
	~~Steel portal frames are capable of spanning large distances. They are~~		{{Review}}
	~~used in the construction of factories and warehouses, and other low-rise~~
	~~buildings that require wide spans. Wall and roof bracing is normally~~
	~~provided in selected bays, often at the end of buildings. Additional~~
	~~vertical column or beam sections may be introduced at the gables~~
	~~(wind posts) to support cladding on end walls.~~

	~~Roof beams (rafters)~~ and ~~columns are usually fabricated from rolled~~		Steel portal frames are capable of spanning large distances. They are used in the construction of factories and warehouses, and other low-rise buildings that require wide spans. Wall and roof bracing is normally provided in selected bays, often at the end of buildings. Additional vertical column or beam sections may be introduced at the gables (wind posts) to support cladding on end walls.
	~~steel sections~~, ~~while purlins~~ and ~~cladding rails are usually~~ in ~~light~~
	~~steel~~ sections~~. Liner trays~~ may be ~~used as an alternative~~ to cladding
	~~rails~~.

	~~Cladding materials include built-up cladding systems~~ (~~as shown~~),		Roof beams (rafters) and columns are usually fabricated from rolled steel sections, while purlins and cladding rails are usually in light steel sections. Liner trays may be used as an alternative to cladding rails.
	~~composite~~ cladding ~~panels, and masonry~~.

	Small single storey industrial buildings can also be constructed		Cladding materials include built-up cladding systems (as shown), composite cladding panels, and masonry.
	using light steel sections for the columns and rafters
			Small single storey industrial buildings can also be constructed using light steel sections for the columns and rafters

	[[Approximate structural sizing]]		[[Approximate structural sizing]]

Ok at 00:20, 7 March 2010

2010-03-07T00:20:12Z

← Older revision		Revision as of 02:20, 7 March 2010
Line 34:		Line 34:

	[[Category:Structural Components]]		[[Category:Structural Components]]
	[[Category:~~Rules~~ of Thumb]]		[[Category:Rule of Thumb]]

Ok: New page: Steel portal frames are capable of spanning large distances. They are used in the construction of factories and warehouses, and other low-rise buildings that require wide spans. Wall and r...

2008-06-28T18:06:21Z

New page: Steel portal frames are capable of spanning large distances. They are used in the construction of factories and warehouses, and other low-rise buildings that require wide spans. Wall and r...

New page

Steel portal frames are capable of spanning large distances. They are
used in the construction of factories and warehouses, and other low-rise
buildings that require wide spans. Wall and roof bracing is normally
provided in selected bays, often at the end of buildings. Additional
vertical column or beam sections may be introduced at the gables
(wind posts) to support cladding on end walls.

Roof beams (rafters) and columns are usually fabricated from rolled
steel sections, while purlins and cladding rails are usually in light
steel sections. Liner trays may be used as an alternative to cladding
rails.

Cladding materials include built-up cladding systems (as shown),
composite cladding panels, and masonry.

Small single storey industrial buildings can also be constructed
using light steel sections for the columns and rafters

[[Approximate structural sizing]]

ROOF BEAMS (RAFTERS)

Typical span = 20-50 m

Beam depth = Span/60

Cold formed rafters span up to 18 m

COLUMNS

Column depth = 1.25 x roof beam

Width = as UB sections

[[Category:Structural Components]]
[[Category:Rules of Thumb]]