Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W12 × 120

Wide Flange Steel I Beam |
Single Span
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Two Equal Spans
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Three Equal Spans
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Four Equal Spans
For a simply supported beam in three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress
occuring at the second and third supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 1070 in4) for the W12 × 120 Wide Flange Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress
of steels can range from 1.015 × 104 to 2.970 × 105 psi. The purpose of this page is to give a rough estimation of the load-bearing capacity of this particular beam, rather than a guideline for designing actual building structures. Please check your local building codes for regulatory requirements.




Note: The weight of the beam itself is not included in the calculation.
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Additional Information

Related Glossary Pages

Glossary: Beams: Simply Supported: Uniformly Distributed Load: Four Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Four Equal Spans: ALuminum I Beam: 12.00 × 14.292
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Three Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Three Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Three Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Single Span: Aluminum I Beam: 8.00 × 7.023
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Four Equal Spans: ALuminum I Beam: 12.00 × 14.292
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Three Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Three Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Three Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Two Equal Spans
Glossary: Beams: Simply Supported: Uniformly Distributed Load: Single Span: Aluminum I Beam: 8.00 × 7.023
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