9d-Practice problem 5-5-8-Compute Mn.
Practice problem 5-5-8 A W18 x 71 is used as a beam with an unbraced length of 9 feet. Use Fy=65 ksi and Cb = 1 and compute the nominal flexural strength.
lateral torsional buckling
Introduction to Lateral torsional buckling for steel beams. How do we find the bracing length Lp and Lr? How do you see the nominal moment value for a steel section for a given bracing length Lb?
9c-Practice problem 5-5-6-Compute Lp and Lr and φb*Mn.
Practice problem 5-5-6 A W12 x 30 of A992 steel has an unbraced length of 10 feet. Using Cb = 1.0, a. Compute Lp and Lr. Find φb*Mn and Mn/Ωb for lb=10 feet.
14- Find the Flexture Strength: Analysis Problem 9-7-lb>lr.
Find the flexure strength-solved problem 9- 7-Lb is bigger than Lr. A step-by-step guide to detrmine the flexture strength Fcr and Mrx.
13-Solved problem 4-6-how to find the available flexure strength?
Solved problem 4-6- how to get the available flexure strength for a beam? this is an analysis problem, bracings distances are >Lp but less than Lr.
12- Easy introduction to plastic bracing length Lp, Lr, Fcr.
Review of the information of Lp, Lr, Fcr, what are the relating equation for each item? a practice example is given for illustration of the subject.
10a- Regions for Lateral-torsional buckling for beams -2/2.
We have three Regions for Lateral-torsional buckling for beams. A new item is discussed which is moment gradient cb.