62. A simple span beam with a uniformly distributed dead load of 1.0 k/ft, plus its self-weight, and concentrated dead loads of 2.5 kips and live loads of 8.0 kips at the quarter points of a 20-ft span, is to be designed with lateral supports at the supports and mid-span. The live load deflection must be limited to 1/240 of the span. Use the correct Cb and be sure to check shear. Determine the least-weight W-shape to carry the loads. Use A992 steel. Design by (a) LRFD
62. A simple span beam with a uniformly distributed dead load of 1.0 k/ft, plus its self-weight, and concentrated dead loads of 2.5 kips and live loads of 8.0 kips at the quarter points of a 20-ft span, is to be designed with lateral supports at the supports and mid-span. The live load deflection must be limited to 1/240 of the span. Use the correct Cb and be sure to check shear. Determine the least-weight W-shape to carry the loads. Use A992 steel. Design by (a) LRFD
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![62. A simple span beam with a uniformly distributed dead load of 1.0 k/ft, plus its self-weight, and concentrated dead loads
of 2.5 kips and live loads of 8.0 kips at the quarter points of a 20-ft span, is to be designed with lateral supports at the
supports and mid-span. The live load deflection must be limited to 1/240 of the span. Use the correct Cb and be sure to
check shear. Determine the least-weight W-shape to carry the loads. Use A992 steel. Design by (a) LRFD](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdb0c4d74-277a-406a-9104-80211e5c7234%2Ffb391ce8-1838-4098-b02c-2ad4c6a176cb%2Fbgihuj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:62. A simple span beam with a uniformly distributed dead load of 1.0 k/ft, plus its self-weight, and concentrated dead loads
of 2.5 kips and live loads of 8.0 kips at the quarter points of a 20-ft span, is to be designed with lateral supports at the
supports and mid-span. The live load deflection must be limited to 1/240 of the span. Use the correct Cb and be sure to
check shear. Determine the least-weight W-shape to carry the loads. Use A992 steel. Design by (a) LRFD
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Step 1: Introduce the problem statement
VIEWStep 2: Determine ultimate shear force and bending moment
VIEWStep 3: Deflection of beam due to live load
VIEWStep 4: Determine minimum moment of Inertia
VIEWStep 5: Assume a trial section
VIEWStep 6: Classify the section
VIEWStep 7: Determine Cb
VIEWStep 8: Check the beam for flexure
VIEWStep 9: Check the beam for shear
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