portal frame

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portal frame

Same as portal, 2.
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Contract notice: Provision of Fabricated Steel Portal Frames, Covered Walkways including Pre-Construction Training (UK) and On-site Construction Supervision (Falkland Islands).
Its roof is supported on 12 laminated timber portal frames trussed at their ridges with inclined 2 x 4in (50mm x 100mm) struts and steel rod ties.
But the Classical pseudo masonry elements of Behrens's AEG turbine hail never seemed convincing in the context of walls of glass and concrete portal frames.
The design is an elegant, spaceship-like pod of laminated structural timber portal frames clad in aluminium panels.
The big volume, indeed the whole house, has been created in an almost industrial way with steel portal frames 6m high and 7m wide, blockwork side walls and compressed fibre boards on front and back parapets.
The actual concrete construction is exposed internally in its true character, in the giant portal frames which span longitudinally.
1) The house faces the beach and is made as a series of six steel portal frames that carry a deck a metre over the sand, above which is a pitched metal roof supported on hardwood purlins.
The system consists of one or more centrally placed portal frames, carrying a spine beam which is supported at either end by a gable beam on columns.
The Chadwick Street wing also terminates boldly against the little piazza (though less dramatically so) in a stack of meeting rooms which are made as silver and glass boxes supported by delicate stacked steel portal frames.
Each part of the roof is composed of four steel box portal frames braced by steel beams and covered in aluminium deck and glazing.