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Structural engineering and mechanics : An international journal v.19 no.4, 2005년, pp.361 - 379   피인용횟수: 3

Strut-and-tie model of deep beams with web openings - An optimization approach

Guan, Hong    (School of Engineering, Griffith University Gold Coast Campus  );
  • 초록

    Reinforced concrete deep beams have useful applications in tall buildings and foundations. Over the past two decades, numerous design models for deep beams were suggested. However even the latest design manuals still offer little insight into the design of deep beams in particular when complexities exist in the beams like web openings. A method commonly suggested for the design of deep beams with openings is the strut-and-tie model which is primarily used to represent the actual load transfer mechanism in a structural concrete member under ultimate load. In the present study, the development of the strut-and-tie model is transformed to the topology optimization problem of continuum structures. During the optimization process, both the stress and displacement constraints are satisfied and the performance of progressive topologies is evaluated. The influences on the strut-and-tie model in relation to different size, location and number of openings, as well as different loading and support conditions in deep beams are examined in some detail. In all, eleven deep beams with web openings are optimized and compared in nine groups. The optimal strut-and-tie models achieved are also compared with published experimental crack patterns. Numerical results have shown to confirm the experimental observations and to efficiently represent the load transfer mechanism in concrete deep beams with openings under ultimate load.


  • 주제어

    concrete deep beams .   strut-and-tie model .   web openings .   support conditions .   topology optimization .   stress and displacement constraints.  

  • 참고문헌 (25)

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  • 이 논문을 인용한 문헌 (3)

    1. 2008. "" Structural engineering and mechanics : An international journal, 30(1): 77~97   
    2. 2009. "" Structural engineering and mechanics : An international journal, 33(3): 285~306   
    3. 2010. "" Structural engineering and mechanics : An international journal, 35(1): 19~35   

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    3. 2015 "Towards UAV-based bridge inspection systems: a review and an application perspective" Structural monitoring and maintenance 2 (3): 283~300  
    4. 2016 "Quantifying the seismic resilience of two tall buildings designed using Chinese and US Codes" Earthquakes and structures 11 (6): 925~942  

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