Analysis of USCD Columns By Modified Compression Theory


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Title: Analysis of USCD Columns By Modified Compression Theory

Author(s): E. Bentz

Publication: Special Publication

Volume: 205


Appears on pages(s): 145-168

Keywords: finite element method; modified compression field theory; numerical methods; shear strength

Date: 1/1/2002

The Modified Compression Field Theory (MCFT), developed over the last 20 years at the University of Toronto, is a general method for the analysis of reinforced concrete elements subjected to shear. Implementations of the MCFT range from simple hand techniques in the AASHTO code through computer based sectional analysis methods to nonlinear finite element analysis procedures. In this paper the MCFT is briefly explained and used to calculate the behavior of six University of California, San Diego Columns. The results indicate conservative modeling from the AASHTO code. The sectional model Response-2000 was able to model the behavior of the steel jacketed columns well, but was quite conservative for the columns without jackets. The finite element program TRIX97 did a good job of modeling the behavior of all the columns, though the displacement at failure was underestimated.