The 3rd or 4th edition solution manuals are sometimes sold used on AbeBooks or eBay. The problem numbers may differ, but the methods (moment distribution, slope deflection) remain identical.
If a site requires you to upload your own file before downloading, exit immediately. The 3rd or 4th edition solution manuals are
Kassimali himself has stated in interviews that the solution manual is intended for instructors. Using it as a self-check tool is fine. Using it to skip learning is a disservice to your professional ethics. but the methods (moment distribution