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Abstract: The 2007
collapse of the I-35W Bridge in Minneapolis, Minnesota led to additional load rating
requirements for gusset plates. The Federal Highway Administration provided the direct
tension and block shear methods to assess tensile capacity for use in load rating, as
well as a mechanics based method to assess shear capacity on critical planes. However,
the three methods provide little ... read moreinformation about ultimate behavior for complex
connections. Using finite elements, the authors modeled the connection from R.E.
Whitmore's 1952 study and loaded it to failure to find the plate capacity and failure
mechanism. The analysis showed that the direct tension method predicted neither capacity
nor behavior. Model performance corresponded well with shear capacity on the gross
horizontal plane. Yielding on this plane began around critical bolt holes and spread to
either side of the plate. At capacity, the beginning of block shear failure was evident
along the left diagonal.
Thesis (M.S.)--Tufts
University, 2012.
Submitted to the Dept. of Civil
Engineering.
Advisors: Brian Brenner, and Masoud
Sanayei.
Committee: Brian Brenner, Masoud Sanayei,
and Erin Santini-Bell.
Keyword: Civil
engineering.read less
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