Evaluation of Ductility of Precast Column Foundation Connections

A Hemamathi; K P Jaya; Binu Sukumar

doi:10.17485/IJST/v16i20.2306

Article

Evaluation of Ductility of Precast Column Foundation Connections

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v16i20.2306

Year: 2023, Volume: 16, Issue: 20, Pages: 1516-1526

Original Article

Evaluation of Ductility of Precast Column Foundation Connections

A Hemamathi^1*, K P Jaya², Binu Sukumar³

¹Associate Professor, Department of Civil Engineering, R.M.K. Engineering College, Kavaraipettai, Thiruvallur district, 601 206, Tamil Nadu, India
²Professor & Head, Department of Civil Engineering, Anna University, Chennai, 600 025, Tamil Nadu, India
³Professor & Head, Department of Civil Engineering, R.M.K. Engineering College, Kavaraipettai, Thiruvallur district, 601 206, Tamil Nadu, India

*Corresponding Author
Email: [email protected]

Received Date:04 March 2023, Accepted Date:17 May 2023, Published Date:25 May 2023

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objectives: To investigate and compare the ductility performance of precast column foundation connection using the method proposed by Park and ASCE 31-03. Methods: Strength and ductility are the most important parameters to resist earthquake forces for the overall safety of a structure. Evaluating ductility from experiments is a cumbersome process. From the experimentally obtained load-displacement envelope, the ductility was evaluated for four specimens of precast column foundation connection by the method proposed by Park and Paulay (1989) and ASCE 31-03. The results were also compared with monolithic specimen. Each of the specimen was subjected to displacement-controlled lateral cyclic loading. The maximum displacement was maintained at 40 mm due to laboratory constraints. Findings: From the evaluated results, ASCE 31- 03 gives better values of ductility than the method proposed by Park. The calculated ductility by ASCE 31-03 were 31.5 %, 41.07 %, 72.7%, 68.3% and 48.9 % higher for monolithic specimen, PCBJ, PC I, PC II and GS specimen respectively. Novelty: The present study reveals the best-suited method that can be applied to evaluate ductility for specimen subjected to lateral cyclic loading that has not been reported in earlier studies.

Keywords: Ductility Ratio; Yield Displacement; Ultimate Displacement; Precast Connection; Load Displacement Envelope

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Copyright

© 2023 Hemamathi et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)