The Phig-leaf Phactor, Part 2


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Title: The Phig-leaf Phactor, Part 2

Author(s): John Stanton, Kristina Tsvetanova, and Andrew W. Taylor

Publication: Concrete International

Volume: 37

Issue: 12

Appears on pages(s): 39-47

Keywords: failures, design, strength, ductility

Date: 12/1/2015


In the second of two articles on the topic of ϕ-factors, the authors review notable structural failures in various concrete and steel structures and discuss the contributing causes. Based on their findings, human errors have a far greater influence on collapse than the load and strength reduction factors. Therefore, there is room to adjust the ϕ-factor methodology without jeopardizing real safety. The authors suggest changes to the ϕ-factor structure that would make ϕ-factors easier to use while not reducing real safety.