ASCE 7-10 Changes to Flood Load Provisions

摘要

The flood loads that are covered in Chapter 5 of ASCE 7-10 have not changed in any substantive way since ASCE 7-05. The same flood forces are discussed with formulas exactly as they were in ASCE 7-05. The issue for the designer using the flood standard is in trying to understand the unknowns inherent in the formulas so they can make good decisions about how to apply the formulas to real problems. The paper will describe the issues that designers must consider for each of the flood forces delineated in ASCE 7-10 and where continued work needs to be done to improve the understanding we have about the magnitudes of flood loads. The paper will also offer guidance on the magnitude of the load factors used in strength and allowable stress design situations.