Blog posts

4-Moment of inertia Iy for the rectangular section.

June 15, 2025September 1, 2020 by Maged kamel

How to estimate the Moment of inertia Iy for the rectangular section about axis y? What will be the Iyg value at the Cg?

11-Solved problem 4-5-Design a steel beam-(lb less than lp)

October 17, 2025August 28, 2020 by Maged kamel

Download the worked solution for Problem 4‑5: Design a steel beam with lb < lp. Includes assumptions, AISC checks, limit states, and final sizing in a detailed PDF.

3- Easy introduction to Ix for the rectangular section.

June 15, 2025August 20, 2020 by Maged kamel

How to estimate the Moment of inertia Ix for the rectangular section using a horizontal strip about axis x? What will be the Ixg value and radii of gyration?

5A-Practice problems with linear approximation

December 19, 2024August 14, 2020 by Maged kamel

In this post, there are practice problems with linear approximation. these pr practice problems are using step-by-step illustration.

10a- Regions for Lateral-torsional buckling for beams -2/2.

August 11, 2024August 12, 2020 by Maged kamel

Brief content fpor post 10a-steel beams.

We have three Regions for Lateral-torsional buckling for beams. A new item is discussed which is moment gradient cb.

10-Step by step guide to Lateral-torsional buckling.

June 17, 2024August 10, 2020 by Maged kamel

Lateral-torsional buckling is the overall instability of a beam, includes twisting of the member and lateral buckling of the compression flange.

2-Parallel axes theorem for Iy, polar moment of inertia.

July 12, 2025August 10, 2020 by Maged kamel

Introduction to the parallel axes theorem for Iy and polar moment of inertia. and how to get the values of radius of gyrations kx and Ky.

9A-Solved problem-7-4-1-part 2.

November 23, 2024August 9, 2020 by Maged kamel

Solved problem-7-4-1-part 2. In this part we will deign a Wsection for a steel beam with span of 20 feet based on steel A572.

5- What is the Linear Approximation method?

March 21, 2024August 5, 2020 by Maged kamel

brief illustration for -Post 5-Linear approximation method

Introduction to linear approximation, what is a linear approximation equation?

9-How to design a steel beam? Solved problem-7-4-1.

April 22, 2025August 5, 2020 by Maged kamel

How to design a steel beam?-Solved problem-4-7-1. two cases for the design of a steel beam, first case for Fy=36 ksi and the second is for Fy=50 ksi.

8- How to make an analysis of steel beams? Solved problems.

September 7, 2024August 1, 2020 by Maged kamel

Solved problems for local buckling parameters-post 8 steel.

How to make an analysis of steel beam? The first problem for analysis of a given beam, the second problem for checking section compactness.

4-Easy introduction to Mohr’s Circle of inertia part-1.

December 19, 2024July 25, 2020 by Maged kamel

This is an introduction to Mohr’s circle of inertia. This is the case of ix is bigger than Iy.
How to locate point D of(ix’,Ix’y’?

7- A guide to Local buckling parameters for steel beams.

August 31, 2024July 20, 2020 by Maged kamel

Introduction to Local Buckling parameters-post 7.

Local buckling parameters for members that are subjected to flexure. A discussion is extended to cover the difference between stiffened and un-stiffened elements.

4b- Easy to introduce the definition of IRR-NPV.

July 5, 2025July 16, 2020 by Maged kamel

What is the Npv, net present value? What is the IRR or the internal rate of return? Solved problem is given to illustrate the subject.

6-Solved problem 5-2 for the plastic moment value for W10x60.

August 15, 2024July 15, 2020 by Maged kamel

A solved problem 5-2 for the plastic moment value for section W10x60, two methods are used to estimate the value.