Large structures must be able to resist many different kinds of forces. A structure's own weight and other loads it experiences squeeze, stretch, bend, and twist the structure -- sometimes all at once. This interactive activity from the Building Big Web site describes some of the most important forces a structural engineer must consider and illustrates the damage these forces can cause.
This resource can be found on the Building Big Web site.
© 2015 PBS & WGBH Educational Foundation. All rights reserved.