Prediction of Inelastic Mechanisms Leading to Seismic Failure of Interior Reinforced Concrete Beam–Column Connections

Inelastic mechanisms leading to failure in interior reinforced concrete beam–column (RCBC) connections, designed on the concept of strong column–weak beam philosophy, primarily result from failure of the joint region and yielding of longitudinal reinforcement in beams. In this manuscript, two novel easy-to-use probabilistic methodologies have been developed that can determine with sufficient accuracy the occurrence of either of these inelastic mechanisms leading to failure, given the geometric, material and loading parameters of an experimental investigation. One model was developed by using the relevance vector machine method, a machine learning methodology that uses a Bayesian formulation, and results in a sparse representation. Another model was binomial logistic regression, which can relate the qualitative event of inelastic mechanism resulting in failure initiation with several experimentally obtained independent parameters. It can also quantify the relative importance of each of these independent parameters. Both methods show good predictive efficiency and can be utilized by a designer, engineer, or researcher to obtain a preliminary probabilistic estimate of inelastic mechanisms that lead to failure of interior RCBC connections. This manuscript also presents comparative evaluations of utilizing these two models.

• Record URL:
  https://doi.org/10.1061/(ASCE)SC.1943-5576.0000115
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10840680
• Supplemental Notes:
  • Copyright © 2012 American Society of Civil Engineers
• Authors:
  • Nilanjan, Mitra
  • Pijush, Samui
• Publication Date: 2012-8

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: pp 110-118
• Serial:
  • Practice Periodical on Structural Design and Construction
  • Volume: 17
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0680
  • Serial URL: http://ascelibrary.org/loi/ppscfx

Subject/Index Terms

• TRT Terms: Beams; Columns; Failure analysis; Inelastic stress; Mathematical methods; Mathematical prediction; Reinforced concrete; Seismicity
• Uncontrolled Terms: Probabilistic methods
• Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01455868
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Nov 30 2012 5:13PM