Structural Engineering and Mechanics

  • 제36권2호
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  • Pages.165-179
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  • 2010
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Neural networks for inelastic mid-span deflections in continuous composite beams

  • Pendharkar, Umesh (Department of Civil Engineering, Ujjain Engineering College) ;
  • Chaudhary, Sandeep (Department of Structural Engineering, Malaviya National Institute of Technology) ;
  • Nagpal, A.K. (Department of Civil Engineering, Indian Institute of Technology Delhi)
  • 투고 : 2009.01.09
  • 심사 : 2010.06.04
  • 발행 : 2010.09.30
⟨ 이전 논문 다음 논문 ⟩

초록

Maximum deflection in a beam is a design criteria and occurs generally at or close to the mid-span. Neural networks have been developed for the continuous composite beams to predict the inelastic mid-span deflections (typically for 20 years, considering cracking, and time effects, i.e., creep and shrinkage, in concrete) from the elastic moments and elastic mid-span deflections (neglecting instantaneous cracking and time effects). The training and testing data for the neural networks is generated using a hybrid analytical-numerical procedure of analysis. The neural networks have been validated for four example beams and the errors are shown to be small. This methodology, of using networks enables a rapid estimation of inelastic mid-span deflections and requires a computational effort almost equal to that required for the simple elastic analysis. The neural networks can be extended for the composite building frames that would result in huge saving in computational time.

키워드

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