《设计指南11》（第二版）根据自《原始设计指南》出版以来已出版的大量关于钢框架结构系统（包括楼板、纪念性楼梯和阳台）因人类活动引起的反应的文献，对原始版本进行了扩展和更新。

Design Guide 11 (2nd Edition) expands and updates the original version with new material based on the large volume of literature that has been published on the response of steel framed structural systems including floors, monumental stairs, and balconies due to human activity since the original Design Guide was published.