| 摘要 |
High-strength sections are low-weight articles produced from metal plate or sheet for use in the construction industry in mezzanines and walls of buildings. They do not incorporate concrete. Nevertheless, they withstand considerable bending/compression forces. They minimize the cost of buildings. They may be designed to meet the structural requirements of a range of special cases. For lighting purposes, they may be produced with glass-fibre-reinforced polyester or acrylic. The geometry of the high-strength sections, which are produced from sheet strip, is defined by the formula: A = [2NOEB+D-2e)]+D, in which (A) is the width of the strip, (N) is the number of valleys or ridges, (B) is the width of each valley or ridge, (D) is the mezzanine camber and (e) is the thickness of the sheet. These data are used to work out all the structural design values of any high-strength section.
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