Steel and Composite Structures

  • 제22권3호
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  • Pages.627-645
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

An analytical model for shear links in eccentrically braced frames

  • Ashtari, Amir (Department of Civil Engineering, Science and Research Branch, Islamic Azad University) ;
  • Erfani, Saeed (Department of Civil Engineering, Amirkabir University of Technology)
  • 투고 : 2016.06.29
  • 심사 : 2016.10.19
  • 발행 : 2016.10.30
⟨ 이전 논문 다음 논문 ⟩

초록

When an eccentrically braced frame (EBF) is subjected to severe earthquakes, the links experience inelastic deformations while beams outside of the link, braces and columns are designed to remain elastic. To perform reliable inelastic analyses of EBFs sufficient analytical model which can accurately predict the inelastic performance of the links is needed. It is said in the literature that available analytical models for shear links generally predict very well the maximum shear forces and deformations from experiments on shear links, but may underestimate the intermediary values. In this study it is shown that available analytical models do not predict very well the maximum shear forces and deformations too. In this study an analytical model which can accurately predict both maximum and intermediary values of shear force and deformation is proposed. The model parameters are established based on test results from several experiments on shear links. Comparison of available test results with the hysteresis curves obtained using the proposed analytical model established the accuracy of the model. The proposed model is recommended to be used to perform inelastic analyses of EBFs.

키워드

참고문헌

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피인용 문헌

  1. A lateral load pattern based on energy evaluation for eccentrically braced frames vol.27, pp.5, 2016, https://doi.org/10.12989/scs.2018.27.5.623
  2. Experimental and numerical assessment of EBF structures with shear links vol.28, pp.2, 2018, https://doi.org/10.12989/scs.2018.28.2.123
  3. Effect of flexural and shear stresses simultaneously for optimized design of butterfly-shaped dampers: Computational study vol.23, pp.4, 2016, https://doi.org/10.12989/sss.2019.23.4.329
  4. Seismic performance of high strength steel frames with variable eccentric braces based on PBSD method vol.18, pp.5, 2020, https://doi.org/10.12989/eas.2020.18.5.527