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Hello everyone, I am trying to understand the difference between the torsional unbraced length and the flexural unbraced length for an I-beam in order to calculate 𝐹e(elastic buckling stress) using equations E4-10 and E4-12 in AISC 360-22. I would really appreciate it if someone could sketch...

Hello all, I have one quick question for you all and I 'd appreciate it if you could answer. I am looking at the latest edition of AISC which is the 15th Ed. and trying to calculate the shear strength of a Tee section using G3-1, pg 16.1-74. What is b? is it the whole height or the whole height...

Hello all, I have about 5 aluminum sections that I need their section properties. I used Staad Section Wizard to get them but it is not giving everything correctly. I need a more decent software to calculate them. Does anyone have a suggestion? Thanks. Here are the sections I am talking about...

Hello all, I am currently checking a retractable roof system like in the attached photo and all members are aluminum sections. Do I have to check them with the Aluminum Code or AISC steel manual would also work? Thanks in advance. Here is a picture...

Hello all, I have a question about calculating the wind forces on three or four sided walls. When calculating the wind force on the walls, do we calculate the wind forces saperatly for each wall or calculate lets say wall 1 and apply the coeefficients of wall two and three to the force we found...

Hey guys, Need some advice on this. I have not used 1/3 increase when checking bolts, pins, etc. for extreme storm conditions. I am checking some pinned connection with male and female plates where they have used the 1/3 increase on all component checks. I would have thought 1/3 increase...

Hello all, I'd like to get some opinions on this. If the flange thickness of a wide flange section is 1”, and you specify that the corrosion is 0.25”. Would you think that the flange is now 0.5” (Assuming corrosion on each side of flange is 0.25”), or 0.75” (Assuming corrosion on each side...

Hello all, I have a question about a Tee section strong axis bending. Have 2 load cases, both are simply supported beam and concentrated load in the middle, One case the load is downward in the middle (stem in tension) the other case load is upward and in the middle (stem in compression) I am...

Hello all, Can you please check the attached table with the latest edition of CISC and let me know if this table is any different than the most current one? Thanks.http://files.engineering.com/getfile.aspx?folder=b2553927-bc71-47d1-a4c4-261ce56868aa&file=Classification_of_Sections_CISC_94.jpg

Hello everyone, I am trying to calculate the shear center of a tee section, does anybody have the formulas for both axis?? Thanks in advance.

Hello all, I am currently studying the EC3-2005 and have a couple of questions regarding the combination forces. I noticed that if we have an axial compression and bending forces, we will be using equations 6.61 and 6.62 on page 65. Which clauses do we use to check if we have tension and...

Hello all, I have a question about calculating the plastic section modulus of a channel section. If you look at the European channel section tables for UPN 300, the Wpl_z is 130cm^3 When I calculate it, it comes out to be 144cm^3 I've attached the table and can attach my calcs as well if I get...