See Also: earthquake-resistant structure(encyclopedia)
earthquake(dictionary)
earthquake(encyclopedia)
earthquake(medicine)
Rio Negro(tourism)
Negro(dictionary)
Negro(dictionary)
Negro(medicine)
Resistant(medicine)
resistant(dictionary)

earthquake-resistant structure (sh) and Negro (medicine)


earthquake-resistant structure (sh)




Building designed to prevent total collapse, preserve life, and minimize damage in case of an earthquake or tremor.

Earthquakes exert lateral as well as vertical forces, and a structure's response to their random, often sudden motions is a complex task that is just beginning to be understood. Earthquake-resistant structures absorb and dissipate seismically induced motion through a combination of means: damping decreases the amplitude of oscillations of a vibrating structure, while ductile materials (e.g., steel) can withstand considerable inelastic deformation. If a skyscraper has too flexible a structure, then tremendous swaying in its upper floors can develop during an earthquake. Care must be taken to provide built-in tolerance for some structural damage, resist lateral loading through stiffeners (diagonal sway bracing), and allow areas of the building to move somewhat independently.


Negro (medicine)


negro


Origin: Sp. Or Pg. Negro, fr. Negro black, L. Niger; perh. Akin to E. Night.

A black man; especially, one of a race of black or very dark persons who inhabit the greater part of tropical Africa, and are distinguished by crisped or curly hair, flat noses, and thick protruding lips; also, any black person of unmixed African blood, wherever found.

Of or pertaining to negroes; black.

<zoology> Negro bug, a minute black bug common on the raspberry and blackberry. It produced a very disagreeable flavor. Negro corn, the Indian millet or durra; so called in the West Indies. See Durra.

<zoology> Negro fly, Cavendish tobacco.

<zoology> Negro monkey, the moor monkey.

Source: Websters Dictionary