Limit state design (LSD) refers to a design method used in structural engineering. A limit state is a condition of a structure beyond which it no longer fulfills the relevant design criteria. The condition may refer to a degree of loading or other actions on the structure, while the criteria refer to structural integrity, fitness for use, durability or other design requirements. A structure designed by LSD is proportioned to sustain all actions likely to occur during its design life, and to remain fit for use, with an appropriate level of reliability for each limit state. Building codes based on LSD implicitly define the appropriate levels of reliability by their prescriptions.
Read more about Limit State Design: Criteria, Ultimate Limit State, Serviceability Limit State, Factor Development, Example Treatment of LSD in Codes, The State of The Art, Limit State Design in The United States, Limit State Design in Europe
Famous quotes containing the words limit, state and/or design:
“Washington has seldom seen so numerous, so industrious or so insidious a lobby. There is every evidence that money without limit is being spent to sustain this lobby.... I know that in this I am speaking for the members of the two houses, who would rejoice as much as I would to be released from this unbearable situation.”
—Woodrow Wilson (1856–1924)
“Art is identical with a state of capacity to make, involving a true course of reasoning. All art is concerned with coming into being ... for art is concerned neither with things that are, or come into being, by necessity, nor with things that do so in accordance with nature.”
—Aristotle (384–323 B.C.)
“Humility is often only the putting on of a submissiveness by which men hope to bring other people to submit to them; it is a more calculated sort of pride, which debases itself with a design of being exalted; and though this vice transform itself into a thousand several shapes, yet the disguise is never more effectual nor more capable of deceiving the world than when concealed under a form of humility.”
—François, Duc De La Rochefoucauld (1613–1680)