02+VAULTING+FALL+05ver4

02+VAULTING+FALL+05ver4 - REMEMBER THAT NOT ALL STUDY UNITS...

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REMEMBER THAT NOT ALL STUDY UNITS WILL BE AS COMPLETE AS THIS ONE. BUT SINCE THIS MATERIAL IS HARDER TO FIND, I AM PUTTING A MORE COMPLETE SET OF IMAGES AND TEXT ON FOR YOU
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VAULTING and its ramifications A vault is a masonry covering over a major or minor space FALL 2005
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DIFFERENT KINDS OF VAULTING BARREL VAULTING Round Pointed GROIN VAULTING RIB VAULTING
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Basic unit of vaulting = arch
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ROUND ARCH WITH VOUSSOIRS Round arch composed of wedge shaped voussoirs
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IN RESPONSE TO GRAVITY, EACH VOUSSOIR PRODUCES A VERTICAL AND HORIZONTAL LOAD
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POINT AT WHICH HORIZONTAL THRUSTS MUST BE CONTROLLED OR ARCH WILL COLLAPSE 30° 30°
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30° FROM HORIZONTAL: WEAKEST POINT not keystone HINGE POINTS
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Pointed arch better fits ideal line of pressure/force Angle changes Hits lower Force less horizontal thrusts must still be controlled near 30 degrees from horizontal
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BARREL VAULTS ARE ARCHES EXTENDED IN DEPTH
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As well as a vertical load along its entire length Haunch Continuous vertical load and horizontal thrust along entire length forces must be controlled along entire length Keep same properties as single arch
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In a barrel vault resting on four supports, the sides of the shell between supports are in tension
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Cut away material in tension = Vault is in compression, but is unstable and will Collapse at the crown
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Cross cut away portion with another barrel vault = groin vault Points of intersection are called GROINS
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vertical loads and horizontal thrusts in a groin vault are delivered to four points where they must be controlled
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Do
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This note was uploaded on 03/28/2008 for the course ENDS 150 taught by Professor Paul during the Spring '08 term at Texas A&M.

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02+VAULTING+FALL+05ver4 - REMEMBER THAT NOT ALL STUDY UNITS...

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