Arch_bridge Arch_bridge

Arch bridge - Definition and Overview
Related Words: Bifrost, Boston, Cremona, L, Pit, R, Stradivari, Stradivarius, Anacrusis, Apron
Arch bridge in a scenic location
Enlarge
Arch bridge in a scenic location
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust thrust against abutments at either side. A bridge made of a series of arches is called a viaduct. Arch bridges were first invented by the Ancient Greeks, who built them out of stone. Later, the Ancient Romans used cement in their arch bridges. Some of these bridges are still standing today.

Arch bridges are constantly under compression, hence the Romans could use stone, a readily available and durable material, to build them. Stone has good compressive strength, but is weak in tension.

The Romans only ever used semicircular arches, but longer and thinner bridges are possible with elliptical arches.

NOVA Online-Super Bridge-Arch Bridges (http://www.pbs.org/wgbh/nova/bridge/meetarch.html)


Bridgedrawing.png 		 This buildings or structures-related article is a stub. You can help Wikipedia by expanding it (http://www.wordiq.com/definition/Arch_bridge).

Example Usage of bridge
roflmaoliska: @chelseycharizrd we're in the tunnel and there's only one land open cause an accident on the bridge but we're way past that now lol so wtf!
Techno_Cat: @Bladel Google #DNS is a key bridge between the #CLOUD & #FOG Platforms ~ #ICANN no longer has % Market Reach ~ MS & Yahoo can add #newTLDs
redandviolet: Ugh. Just took me two sessions to finish about 10 seconds of a song's bridge. The rest of the song I finished in one 4 hour sess in Oct.
Copyright 2009 WordIQ.com - Privacy Policy  :: Terms of Use  :: Contact Us  :: About Us
This article is licensed under the GNU Free Documentation License. It uses material from the this Wikipedia article.