While coming across the websites to learn structural engineering basics, I found a very impressive website by the Faculty of School of Architecture and Design at Virginia Tech.
The objective of the work related to the Structure and Form Analysis System (SAFAS) is to provide an educational tool for architecture students, engineering students, architects, engineers, and anyone interested in built-environments. SAFAS is designed to help individuals better understand the relationships between structure and form through an interactive web-based system.
VISIT SAFAS WEBSITE and happy learning.