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Uncertainty of Code-Torsional Provisions to Mitigate Seismic Hazards of Buildings with Setback

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Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012)

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Abstract

Static torsional provisions in most of the seismic codes require that the earthquake-induced lateral force at each story be applied at a distance equal to design eccentricity (e d) from the center of resistance of the corresponding story. Such code-torsional provisions, albeit not explicitly stated, are generally believed to be applicable to the regularly asymmetric buildings. Examined herein is the applicability of such code-torsional provisions to buildings with setback. A set of low-rise setback systems are analyzed using static torsional provisions and by response-spectrum-based procedure. A comparison of the response in terms of frame shear located at the perimeter and diaphragm displacements suggests the degree of reliability of code-torsional provisions for low-rise setback building.

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Author information

Authors and Affiliations

  1. Department of Civil Engineering, Bengal Engineering and Science University, Shibpur, Howrah, 711103, India

    Somen Mahato & Prasanta Chakraborty

  2. Department of Aerospace Engineering and Applied Mechanics, Bengal Engineering and Science University, Shibpur, Howrah, 711103, India

    Rana Roy

Authors
  1. Somen Mahato
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  2. Prasanta Chakraborty
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  3. Rana Roy
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Correspondence to Rana Roy .

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Editors and Affiliations

  1. , Civil Engineering, Bengal Engineering and Science Univ., Botanic Garden, Howrah, India

    Subrata Chakraborty

  2. Bengal Engineering and Science Univ., Howrah, India

    Gautam Bhattacharya

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Mahato, S., Chakraborty, P., Roy, R. (2013). Uncertainty of Code-Torsional Provisions to Mitigate Seismic Hazards of Buildings with Setback. In: Chakraborty, S., Bhattacharya, G. (eds) Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012). Springer, India. https://doi.org/10.1007/978-81-322-0757-3_40

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  • DOI: https://doi.org/10.1007/978-81-322-0757-3_40

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  • Publisher Name: Springer, India

  • Print ISBN: 978-81-322-0756-6

  • Online ISBN: 978-81-322-0757-3

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