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절판구조에 관한 발표자료 FOLDED PLATES structure

저작시기 2008.04 |등록일 2010.01.14 파일확장자압축파일 (zip) | 26페이지 | 가격 1,500원

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CHAPTER I - FOLDED PLATES
BASIC ELEMENTS
THREE SEGMENT FOLDED PLATE
Z SHELL
CANOPIES
TAPERED FOLDED PLATES
EDGE SUPPORTED FOLDED PLATES
FOLDED PLATE TRUSS
FOLDED PLATE RIGID FRAME

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CHAPTER I - FOLDED PLATES

The distinguishing feature of the folded plate is the ease in forming plane surfaces. Therefore, they are more adaptable to smaller areas than curved surfaces which require multiple use of forms for maximum economy. A folded plate may be formed for about the same cost as a horizontal slab and has much less steel and concrete for the same spans. Folded plates are not adapted to as wide bay spacings as barrel vaults. For widths of plate over, say, 12 feet, the thickness of the folded plate must be thicker than for a barrel vault. Some advantage may be gained by increasing the thickness of the slab just at the valleys so it will act as a haunched beam and as an I section plate girder.

BASIC ELEMENTS
The principle components in a folded plate structure are illustrated in the sketch above. They consist of, 1) the inclined plates, 2) edge plates which must be used to stiffen the wide plates, 3) stiffeners to carry the loads to the supports and to hold the plates in line, and 4) columns to support the structure in the air.
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