List of Steel beam posts-part-2.

Last Updated on February 20, 2026 by Maged kamel

List of Steel beam posts-part-2

Solved problem 4-5: How to design a steel beam?

This is the first post of the steel beams posts-part-2, including a solved problem 4-5 from Prof. Alan Williams’s book. A simply supported beam of grade 50 steel is laterally braced at 4 ft intervals.

If the beam is subjected to a uniform factored bending moment of 270 ft-kips based on the (LRFD) or 180 ft-kips based on the (ASD), with Cb=1.0, determine (a) the lightest adequate W shape, and (b) the W shape with the minimum allowable depth.

A simply supported beam of grade 50 steel is laterally braced at 4 ft intervals. If the beam is subjected to a uniform factored bending moment of 270 ft-kips (LRFD) or 180 ft-kips (ASD), with Cb=1.0.

Determine (a) the lightest adequate W shape and (b) the W shape with the minimum allowable depth.

This is the link to post 11: Solved problem 4-5: How to design a steel beam?

Step-by-step review of the information on Lp, Lr, and Fcr.

This is the 2nd post in the steel beam posts-part-2 series, which includes the definitions of the following items: Lp, Lr, and Fc.

There is a practice problem: For a given steel W24x176 at Fy=36 ksi, it is required to find the bracing length at the plastic stage, Lp, and the limiting laterally unbraced length, together with the values of Mp and Mr.

This is the link to post 12: Step-by-step review of the Information of Lp, Lr, Fcr.

Solved problem 4-6: How to find the available flexure strength?

This is the 3rd post of the steel beam posts- part 2, which includes a solved problem from Prof. Alan Williams’s reference handbook. This is a case of inelastic buckling.

Solved problem 4.6 A simply supported W16 x40 beam of grade 50 steel is laterally braced at 6 ft intervals and is subjected to a uniform bending moment with Cb =1.0. Determine the available flexural strength of the beam.

This is the link to post 13: Solved problem 4-6-how to find the available flexure strength?

Solved problem 9-7-where Lb is bigger than Lr.

This is the 4rth post in the steel beam posts-part-2 series, including a solved problem from Prof. McCormack’s book. Here is the solved problem 9.7.

Using AISC Equation F2-4, determine the values of φb*Mnx and Mnx/ Ω  for a w18x 97 with fy=50 ksi and unbraced length lb =38 ft, assuming that cb =1.

This is the link to post14: Solved problem 9-7-where Lb is bigger than Lr.

Step-by-step on how to use a design chart with a given Lbr?

This is the 5th steel beam post, part 2, which includes a solved problem from Prof. McCormack’s book.

How do you select a beam with lb=18′, Cb=1, Fy=50 ksi, Mult=544.0 FT-kips, or Ma=362.0Ft-kips? This is a link to post 15: Step-by-step on using a design chart with a given Lbr.

Solved problem 4-7- design using Table 3-10 when Lb>Lr.

 This is the 6th of the steel beam posts, part 2, including solved problems 4-7 from Prof. Alan Williams’s book.

A simply supported grade 50 steel has an unbraced length of 31 Ft.determine the lightest adequate W shape if the beam is subjected to a uniform factored bending moment of 190.0 ft-kips(LRFD) or 127.0 ft-kips (ASD) with  Cb =1.0

This is the link to post 16: Solved problem 4-7– design using table 3-10 when Lb>Lr.

Please refer to the list of steel beam posts (2a) to review the CB (coefficient) for steel beam moment.

Here is the link to Chapter 8, “Bending Members.” A Beginner’s Guide to the Steel Construction Manual, 14^th ed.

Here is the link to Chapter 8, “Bending Members.” A Beginner’s Guide to the Steel Construction Manual, 15^th ed.

Here is the link to Chapter 8, “Bending Members.” A Beginner’s Guide to the Steel Construction Manual, 16^th ed.

The link to part 3 of the list of steel beam posts is part 3.