Simplified Punching Shear Design Method for Slab-Column Connections Using Fuzzy Learning

This paper presents a new approach for predicting the punching shear strength of concentrically loaded interior slab-column connections using fuzzy learning. A total of 178 experimental datasets obtained from concentric punching shear tests of reinforced concrete slab-column connections from the literature are used in training and testing of the fuzzy system. The fuzzy-based model is developed to address the interaction between various punching shear modeling parameters and the uncertainties between them, which might not be properly captured in classical modeling approaches. The model is trained using 82 datasets and verified using 96 datasets that are not used in the training process. The punching shear strength predicted by the fuzzy-based model is compared with those predicted by current punching shear strength models widely used in the design practice. The fuzzy-based model demonstrates a higher prediction of the punching shear strength of concentrically loaded interior slab-column connections than all current design codes. It also respects the fundamental failure mechanics of punching shear that have been observed by previous researchers. The authors also propose a simplified design model based on a set of design charts that were developed from the fuzzy-based model.

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  • Authors:
    • Choi, Kyoung-Kyu
    • Taha, Mahmoud M Reda
    • Sherif, Alaa G
  • Publication Date: 2007-7

Language

  • English

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Filing Info

  • Accession Number: 01055226
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 11 2007 10:24AM