Interaction diagram and response surface plot of pretensioned inverted T-beam with circular web openings

Hock Tian Cheng, Bashar S. Mohammed, Kamal Nasharuddin Mustapha

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents the results of a research project aimed at providing standard circular web openings to the popular precast pretensioned inverted T-beam. Opening diameter and placement and required materials strengths were investigated. In this paper, the non-linear analysis, interaction diagram and deflection response surface plot of simply supported pretensioned inverted T-beam with circular web openings are presented. Two design parameters are varied that is: opening location and numbers of openings. The results from non-linear finite element analysis were substantiated by test results from five pretensioned inverted T-beams with web opening and one solid beam. Good agreement is shown between the theoretical and the experimental results. The effect of openings on the behaviour of such beams at different stages of loading are presented. The test results obtained from this investigation show that the performance of the specimens with web openings was almost identical to that of the specimen without web openings. An algorithm which is written to plot interaction diagram for estimating the cracking load is proposed. Deflection response surface plots using general factorial design are also presented.

Original languageEnglish
Pages (from-to)209-218
Number of pages10
JournalInternational Journal of Modelling, Identification and Control
Volume7
Issue number2
DOIs
Publication statusPublished - 03 Aug 2009

Fingerprint

Response Surface
Diagram
Nonlinear analysis
Interaction
Deflection
Finite element method
Factorial Design
Nonlinear Finite Element
Cracking
Parameter Design
Nonlinear Analysis
Placement
Experimental Results

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Applied Mathematics

Cite this

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Interaction diagram and response surface plot of pretensioned inverted T-beam with circular web openings. / Cheng, Hock Tian; Mohammed, Bashar S.; Mustapha, Kamal Nasharuddin.

In: International Journal of Modelling, Identification and Control, Vol. 7, No. 2, 03.08.2009, p. 209-218.

Research output: Contribution to journalArticle

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