What Structural Engineers Need to Know About Rain Loads

March 16, 2016
Publication: Geotechnical and Structures Congress
Author(s): Aaron Lewis Sean Homem

On 15 February 2016, Aaron Lewis and Sean Homem presented at the Geotechnical and Structures Congress in Phoenix, Arizona. The event was hosted by the Geo-Institute (G-I) and Structural Engineering Institute (SEI) of the American Society of Civil Engineers (ASCE). The session summary, presentation titles, and presenters are listed below. 

What Structural Engineers Need to Know About Rain Loads 
The session covered four rain load-related topics of interest to building design structural engineering professionals. Rain loading is the most commonly misunderstood of the environmental loads considered in design. The presentation covered challenging topics such as primary versus secondary drains, rain loads with added ponding loads, and rain load as a function of parameters (size, spacing, and elevation of secondary drains/scuppers) that are typically not under the control of the structural engineer.  Overall, the session presented information on rain loads that structural engineers need to know. 

1) Design Rainfall Event in ASCE 7-16 by Aaron Lewis  
2) New Head versus Flow Relations for ASCE 7-16 by Dan Howell of FM Global
3) Ponding, Susceptible Roof Geometries and Controlled Flow Drains by Michael O’Rourke, Ph.D., P.E., F.SEI, M.ASCE of Rensselaer Polytechnic Institute
4) Structural Collapse Due to Rain Loading by Sean M. Homem

Services: Structural Design
Keywords: Drainage