Select the lightest W section of a simply supported beam to carry a uniform dead load of 0.5 kip/ft in addition to its self-weight (assume 50 lb/ft) and a live load of 1.0 kips/ft on a span of 42 ft. Continuous lateral support is provided. The live load deflection is limited to L/360. Use A572 Grade 50 steel.

Select the lightest W section of a simply supported beam to carry a uniform dead load of 0.5 kip/ft in addition to its self-weight (assume 50 lb/ft) and a live load of 1.0 kips/ft on a span of 42 ft. Continuous lateral support is provided. The live load deflection is limited to L/360. Use A572 Grade 50 steel.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Select the lightest W section of a simply supported beam to carry a uniform dead load of 0.5 kip/ft
in addition to its self-weight (assume 50 lb/ft) and a live load of 1.0 kips/ft on a span of 42 ft.
Continuous lateral support is provided. The live load deflection is limited to L/360. Use A572
Grade 50 steel.
BA
C6-1.67

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Step 1: Introduce the problem statement

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Step 2: Determine required moment strength

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Step 3: Determine required moment of inertia

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Step 4: Determine required section modulus

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Step 5: Choose a trial section

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Step 6: Check for shear

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