Investigation of the effect of holes interaction on the concrete structure under high stress using PFC2D

Document Type : Original Article

Authors

1 Rahsazi & Omran Iran construction Company, Tehran, Iran

2 Academic member, hamedan university of technology, Hamedan, Iran

3 قائم مقام مدیرعامل شرکت راهسازی و عمران، تهران، ایران

4 معاون فنی شرکت راهسازی و عمران، تهران، ایران

5 مدیر فنی شرکت راهسازی و عمران، تهران، ایران

Abstract

 
Abstract:
The presence of openings in concrete structure has destructive effect on the lifetime. In this paper, the interaction between two openings has been investigated using particle flow code. For this purpose, after calibration of model, one small opening has been situated in various distances and various angularities from big pore opening. The radius of smaller opening is 0.2 of radios of big opening.  This complex is situated in a concrete slab with uniaxial strength of 7 MPa. This slab is under principal stress of 2MPa and 6 MPa. The results show that spacing and angularity of small opening has important effect on the stress distribution and failure pattern around the big opening. The critical position for small opening is when it situated at 0.0 degree. Also the spacing between two openings is less, the failure volume is more.
 

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References

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Journal of Concrete Structures and Materials
Volume 4, Issue 2 - Serial Number 8
December 2019
Pages 5-15

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History

  • Receive Date: 29 April 2018
  • Revise Date: 26 October 2019
  • Accept Date: 04 November 2019

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