ASSIGNMENT #5 BIAXIAL BENDING Problem: Check the beam shown for compliance with the NSCP Specification. Lateral support is provided only at the ends, and A992 steel is used, F, = 345 mPa. The 90 kN service loads are 30% dead load and 70% live load. a. Use LRFD b. Use ASD SECTION d tw by ty (106) S(10³) mm³ 1920 mm mm mm mm mmª W410x100 415 10 260 16.9 398 Tx mm 177 1m 90 kN 90 kN 1.5m W410x100 I Loaded Section Ly(106) Sy(10³) mmª mm³ 49.5 381 mm 62.4 1m Zx(103) Zy(103) mm³ mm3 2130 581

ASSIGNMENT #5 BIAXIAL BENDING Problem: Check the beam shown for compliance with the NSCP Specification. Lateral support is provided only at the ends, and A992 steel is used, F, = 345 mPa. The 90 kN service loads are 30% dead load and 70% live load. a. Use LRFD b. Use ASD SECTION d tw by ty (106) S(10³) mm³ 1920 mm mm mm mm mmª W410x100 415 10 260 16.9 398 Tx mm 177 1m 90 kN 90 kN 1.5m W410x100 I Loaded Section Ly(106) Sy(10³) mmª mm³ 49.5 381 mm 62.4 1m Zx(103) Zy(103) mm³ mm3 2130 581

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter4: Compression Members

Section: Chapter Questions

Problem 4.7.3P

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The given beam is laterally supported at the ends and at the 1 3 points (points 1, 2, 3, and 4). The concentrated load is a service live load. Use Fy=50 ksi and select a W-shape. Do not check deflections. a. Use LRFD. b. Use ASD.
A beam must be designed to the following specifications: Span length = 35 ft Beam spacing = 10 ft 2-in. deck with 3 in. of lightweight concrete fill (wc=115 pcf) for a total depth of t=5 in. Total weight of deck and slab = 51 psf Construction load = 20 psf Partition load = 20 psf Miscellaneous dead load = 10 psf Live load = 80 psf Fy=50 ksi, fc=4 ksi Assume continuous lateral support and use LRFD. a. Design a noncomposite beam. Compute the total deflection (there is no limit to be checked). b. Design a composite beam and specify the size and number of stud anchors required. Assume one stud at each beam location. Compute the maximum total deflection as follows: 1. Use the transformed section. 2. Use the lower-bound moment of inertia.
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