Crack width prediction for precast reinforced concrete (PRC) slabs under repeated loadings

M. D.Soehardjono Agoes, I. G.P. Raka, Priyo Suprobo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The problem of crack in a reinforced concrete structure until recently still became a major issue for researchers. Current research is not shown a satisfactory result, particularly on the effect of repeated load on the crack width. The fracture mechanic method and the experiment result were used to analyze the maximum crack width. The Carpinteri fracture mechanic method, was used to analyze the initial crack depth (ξi) and the fatigue crack growth rate on the composite materials (precast reinforced concrete slabs = PRC slabs). The result showed that at 10 Hz load frequency, steel stress ratio, reinforcement ratio and repeated load do affect the maximum crack width until the bond fatigue limit state by three linear model includes: (i) w = wo, (ii) w = A.e B.fs / fy. (N - C.fs / fy - D) + wo, and (iii) w = wf = (E.fs / fy + F). wo, where wo is the initial crack width and A, B, C, D, E, and F are dimensionless coefficients that depend on the reinforcement ratio.

Original languageEnglish
Title of host publicationMaterials, Experimentation, Maintenance and Rehabilitation - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Pages33-38
Number of pages6
Publication statusPublished - 2006
Event10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010 - Bangkok, Thailand
Duration: 3 Aug 20065 Aug 2006

Publication series

NameMaterials, Experimentation, Maintenance and Rehabilitation - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010

Conference

Conference10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Country/TerritoryThailand
CityBangkok
Period3/08/065/08/06

Keywords

  • Bond fatigue
  • Crack width
  • Reinforcement ratio
  • Repeated load
  • Stress ratio

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