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18 Cards in this Set
- Front
- Back
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Beam |
structural member which spans horizontally between supports and carries loads which act at right angles to the length of the beam |
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Beam |
width and depth of the beam are "small" compared with the span |
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Beam |
typically, width and depth are less than span/10 |
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Beam |
subjected to two sets of external force |
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Beam |
loads applied to the ____ and reactions to the load from the supports |
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Bending moments and Shear forces |
engineering beam theory identifies two types of internal force |
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Deflect |
when a beam is loaded it will _______ |
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Modulus of Elasticity and Moment of Inertia |
Deflection of a particular beam is inversely proportional to: |
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Types of beams |
Lintels Joist Purlins Spandrel Stringers Floor beams Girder Rafter |
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Lintels |
are beans over opening in masonry walls such as window and doors |
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Joist |
are closely spaced beams supporting the floor of a building |
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Purlins |
are smaller spaced beams and support the roofs and sheathing or deckint |
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Spandrel |
is the beam that support the exterior walls of buildings and perhaps part of the floor and hallway loads |
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Stringers |
are the beams in the bridge floor running parallel to the road way |
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Floor beams |
are the larger beam in many bridge floor which are perpendicular to the roadway of the bridge and are used to transfer the loads from the stringer to the supporting girders or trusses |
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Girder |
a large beam and perhaps one into which smaller beams are framed |
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Rafter |
a series of sloper structural beams that extend from the ridge or hip to the wall plate, downslope perimeter or eave, and that are designed to support the roof deck and its associated loads |
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Items to be considered in designing of beams: |
Moments Shear Crippling Buckling Lateral Support Deflection Fatigue |
