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Does anyone know why the solution used 0.3Pn for braced compresion strength? For Special Concentric braced frame, i thought i should be 0.3Pne where Pne = min(RyFyAg, 1.14FcreAg). Thank you for your help! 

I know it may be a simple question but I am not sure how to calculate the uplift force due to buoyancy pressure for the retaining wall with water at top of the wall. Please see the attached file for 2 difference cases to calculate the uplift force. I don't know case 1 or case 2 are the correct...

Hell All - I am planning to take the SE Exam on April 2017. Therefore, I am gathering all the Codes for the exam. I am wondering anyone that passed the exam would like to resell the following codes? Thanks! PCI Design Handbook: Precast and Prestressed Concrete, 7th edition, 2010 Building Code...