It is actually very lengthy to write a complete answer to your question. For a short answer, all we need is to make our distributed load continuous up to the moment center. For varying load, it is necessary to make it increasing. See our previous video for detailed discussion: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gom7h98G5E0.html Thanks for dropping by.
A book published by sir Gillesania and me is available in the market. You may pick one in leading bookstores or order directly from Gillesania online store. Available only in the Philippines though.