Wind and Structures

  • 제4권1호
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  • Pages.45-62
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  • 2001
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Unbalanced wind buffeting effects on bridges during double cantilever erection stages

  • Mendes, Pedro A. (ICIST, Department of Civil Engineering, IST) ;
  • Branco, Fernando A. (ICIST, Department of Civil Engineering, IST)
  • 발행 : 2001.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper is focused on the torsional effects that are induced on bridge piers by unbalanced wind buffeting on the deck during double cantilever erection stages. The case of decks with variable cross section is considered in particular as this characteristic is typical of most frame bridges that are built by the cantilever method. The procedure outlined in the paper is basically an application of the method that Dyrbye and Hansen (1996) have illustrated for decks with constant cross section. This format was chosen because it is suitable for design purposes and may easily be implemented in structural codes. As a complement, the correspondence with the format that is adopted in the Canadian code (NBCC 1990) for the gust factor is established, which might be useful to bridge designers used to the North-American approach to the gust effects on structures. Only alongwind turbulence and horizontal movements of the deck are considered. The combination of torsional and bending effects is also discussed and it is illustrated with an example of application.

키워드

참고문헌

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피인용 문헌

  1. Wind loads and effects on rigid frame bridges with twin-legged high piers at erection stages vol.20, pp.10, 2017, https://doi.org/10.1177/1369433216684350
  2. The influence of the section shape of box-girder decks on the steady aerodynamic yawing moment of double cantilever bridges under construction vol.93, pp.7, 2005, https://doi.org/10.1016/j.jweia.2005.05.005
  3. 3-D wind-induced effects on bridges during balanced cantilever erection stages vol.6, pp.1, 2003, https://doi.org/10.12989/was.2003.6.1.001
  4. The Wind-Induced Response of High-Pier Long-Span Continuous Rigid Frame Bridge vol.639-640, pp.1662-8985, 2013, https://doi.org/10.4028/www.scientific.net/AMR.639-640.502
  5. New estimation methodology of six complex aerodynamic admittance functions vol.13, pp.3, 2001, https://doi.org/10.12989/was.2010.13.3.293