Make a design for a bridge that can withstand a moderately large earthquake.
user
As that would be a tempting task to perform, it will require some special knowledge of bridge building and safety issues. I could be able to do that, but in this context it is not possible.
assistant
Can you give me basic requirements and best practices to make an earthquake resistant bridge ?
user
Triangular shapes will cause them to sway less during an earthquake than a rectangular because they offer increased resistance to twisting--often the cause of major damage during a severe earthquake.
assistant