FOLDED PLATES

1. FOLDED PLATES Folded plate is a roof which has been moulded to a shape. which is in rcc, steel etc.its for large covering for open spaces Nature also uses the principle of folding to create light weight structures. Many plant leaves are unfolded while growing and thus stabilize large surfaces with a minimum of matter. Simplicity, homogeneity, flexibility and variety of forms, economy, and generation of complex geometries based on simple principles are the main characteristics of origami 060137,40

2. A folded plate is an example of a 3-dimensional or space structure. When a thin sheet of paper rests between two supports it will bend due to the fact that it has insufficient strength to carry its own weight 060137,40

3. If the same piece of paper is folded then it will be capable of supporting one hundred times its own weight. 06013,40

4. If the load is increased past this point then the structure will fail and the folds will flatten out This problem can be rectified by using transverse stiffeners at the ends. The folded plate acts as a beam and can support even greater loads 060137,40

5. Folded plates consist of straight pieces joined with sharp edges. It cannot be made as thin as a shell due to the fact that it is subjected to bending. The result of this bending can be seen in the animation opposite 060137,40

6. Folded plates can be seen as a space version of a rigid frame. Folded plates are best formed from reinforced concrete due to the fact that they can be easily cast. Folded plates can take the form of frames as seen above or domes 060137,40

7. Main structure of the port terminal is a folded plate structure that allows for minimal columns to create free flowing space while having the freedom to create a undulating landscaped roof for the pleasure and enjoyment by the public. 060137,40

8. The earliest folded plate solutions […] drew from their close resemblance to corrugated plate and cylindrical shells. The underlying idea is quite simple: longer spans can be accommodated with relatively small increases in weight by enlarging the lever arm of the structure; the top and bottom chords of each slanted slab house the main reinforcements while the shear stresses are absorbed across the sloping sides. 060137,40

9. Examples of folded structures 060137,40

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11. Thank u Srikanth.kasi 060137 P.Venkatesh 060140 060137,40