Splitting Failure of Reinforced Concrete Columns

Many earthquake reconnaissance studies have revealed a unique splitting failure mode of reinforced concrete (RC) columns that has yet to be fully elucidated. Most available shear strength models in the current codes are established based on the concept of a diagonal shear plane through which shear force must be transferred; this concept might not be as applicable to RC columns that failed by vertical cracks, or via splitting failure from an earthquake. In this study, an alternative load-transferring path is proposed that not only explains the failure mechanism, but also allows the estimation of shear strength of the test specimens. Experimental observations from 17 RC columns that underwent splitting failure were used to validate the proposed model. To enhance the applicability of the model, it was corroborated further with 89 short columns screened from existing literature. The validations showed that, while simple to apply, the proposed model can give better predictions of shear strength for RC short columns than other shear strength models available in the literature.

• Record URL:
  • https://doi.org/10.1061/(ASCE)ST.1943-541X.0000859
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Supplemental Notes:
  • © 2013 American Society of Civil Engineers.
• Authors:
  • Pham, Thanh-Phuong
  • Li, Bing
• Publication Date: 2014-3

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: 04013081
• Serial:
  • Journal of Structural Engineering
  • Volume: 140
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Columns; Cracking; Earthquake resistant design; Failure; Reinforced concrete; Shear strength
• Uncontrolled Terms: Seismic effects
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I20: Design and Planning of Transport Infrastructure; I32: Concrete;

Filing Info

• Accession Number: 01500488
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Dec 3 2013 9:12AM