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http://dx.doi.org/10.4334/JKCI.2009.21.5.599

Generalized Analysis of RC and PT Flat Plates Using Limit State Model  

Kang, Thomas H.K. (School of Civil Engineering and Environmental Science, University of Oklahoma)
Rha, Chang-Soon (School of Architecture, Kookmin University)
Publication Information
Journal of the Korea Concrete Institute / v.21, no.5, 2009 , pp. 599-609 More about this Journal
Abstract
This paper discusses generalized modeling schemes for both reinforced concrete (RC) and post-tensioned (PT) flat plate buildings. In this modeling approach, nonlinear behavior due to slab flexure, moment and shear transfer at slab-column connections, and punching shear was included along with linear secant stiffness of each member or connection that accounts for concrete cracking. This generalized model was capable of simulating all different scenarios of slab-column connection failures such as brittle punching, flexure-shear interactive failure, and flexural failure followed by drift-induced punching. Furthermore, automatic detection of drift-induced punching shear and subsequent backbone curve modifications were realistically modelled by incorporating the limit state model, in which gravity shear versus drift capacity relations were adopted. The validation of the model was conducted using one-third scale two-story by two-bay RC and PT flat plate frames. The comparisons revealed that the model was robust and effective.
Keywords
flat plate; nonlinear behavior; dynamic analysis; punching shear; limit state;
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