List of Steel Beam Posts-part-3.

Last Updated on February 21, 2026 by Maged kamel

List of Steel Beam Posts-part-3.

Review of shear stresses for steel beams.

This is Post number 19S of the Steel beam Posts- for shear of the steel beam, in the list of steel beam Posts Part-3, which includes a Review of shear stresses for steel beams and the relation between horizontal and vertical shear stress and the stress value of shear stress based on shear force and first moment of area.

This is a link to post 19S:

A-Solved problem- 2-22 for shear stress parts A, B, and C.

There are two posts, 20S and 21S, of the Steel beam Posts. First, an Introduction to shear stress for a rectangle: how can we estimate it? How do you get the first moment of area for an I-section and derive the shear stress equation?

Two posts discuss solved problems 2-22, which include determining the maximum shearing stress for the following sections when the external shear force equals 75 kips for parts A), B), and C).   

       For item C, in the solved problem 2-22. For the I section W12x87, the relevant data for the flange depth and web thicknesses were obtained from Table 1-1. the width of the flange=12.125″ and its width=0.81″.

While the web thickness = 0.515″, the overall height of the W section = 12.53″. Ix=740.0 inch4.

The first post is post-20S.

  The second post is post 21S.   

Solved problem- 10-2 for beam adequacy for shear.

  This post includes a solved problem from Prof. McCormac’s book. A solved problem 10.2- A given steel section  W21x 55 with Fy =50 ksi. The loads for the beam are shown in Fig.10.4. It is necessary to check its adequacy in shear.

The second part discusses the Nominal shear strength for steel beams based on CM#14—the relation between Nominal shear and the ratio of hw/tw for different steel grades.

This is the link for post 22S: Solved problem 10-2.

Solved problem 10-2: How do we use Table 3-2 for shear value?

The first part of the post includes a solved problem from Prof. McCormac’s book. A solved problem 10.2- A given steel section  W21x 55 with Fy =50 ksi. The loads for the beam are shown in Fig. 10.4, where I used Table 3-2 to find the shear value for the solved problem. 10-2.

The second part discusses the Nominal shear strength for steel beams based on CM#15.

Check section M12.5×12.40 for shear and estimate the Nominal shear strength.

This is the link for post 23S

The next post will be the list of steel beam posts, part 4.

Here is the link to Chapter 8, “Bending Members.” A Beginner’s Guide to the Steel Construction Manual, 14^th ed. Section 8.3.1 Shear Behavior.

Here is the link to Chapter 8, “Bending Members.” A Beginner’s Guide to the Steel Construction Manual, 15^th ed. Section 8.3.1 Shear Behavior.

Here is the link to Chapter 8, “Bending Members.” A Beginner’s Guide to the Steel Construction Manual, 16^th ed. Section 8.3.1 Shear Behavior.