Multi-Mode Pushover Procedure to Estimate Higher Modes Effects on Seismic Inelastic Response of Steel Moment-Resisting Frames

Massimiliano Ferraioli; Angelo Lavino; Alberto Mandara

doi:10.4028/www.scientific.net/KEM.763.82

Paper Titles

Lightweight Steel Constructions for Seismic Areas
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Buckling-Restrained Brace: History, Design and Applications
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Lessons from the Field; Steel Structure Performance in Earthquakes in New Zealand from 2010 to 2016
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An Empirical Methodology for Seismic Damage Control of CFT-MRFs
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Multi-Mode Pushover Procedure to Estimate Higher Modes Effects on Seismic Inelastic Response of Steel Moment-Resisting Frames
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Earthquake-Induced Collapse Risk and Loss Assessment of Steel Concentrically Braced Frames
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Evaluating the Behaviour Factor of Concentric X-Braced Steel Structures
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Comments about the Seismic Behavior of “Inverted Y”- Braced Frames
p.106

Seismic and Robustness Design of Steel Frame Buildings
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 763Multi-Mode Pushover Procedure to Estimate Higher...

Multi-Mode Pushover Procedure to Estimate Higher Modes Effects on Seismic Inelastic Response of Steel Moment-Resisting Frames

Abstract:

The paper deals with a multi-mode pushover procedure that considers higher mode effects, frequency content of response spectra as well as nonlinear interaction between modes. Pushover analyses are conducted with story-specific generalized force vectors. Each force vector is calculated through modal analysis and builds up the instantaneous distribution of forces acting on the structure when the interstory drift at each story attains its maximum value during the seismic motion. In order to improve the computational cost effectiveness, both mode truncation and limitation in the number of generalized pushovers are used by checking, however, the accuracy in the evaluation of the interstory drifts at all levels. The target interstory drift is calculated through three different modal combination procedures.

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Periodical:

Key Engineering Materials (Volume 763)

Pages:

82-89

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.763.82

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Online since:

February 2018

Authors:

Massimiliano Ferraioli, Angelo Lavino, Alberto Mandara*

Keywords:

Higher Mode Effects, Pushover Analysis, Steel High-Rise Frames

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* - Corresponding Author

References

[1] M. Ferraioli, Case study of seismic performance assessment of irregular RC buildings: hospital structure of Avezzano (L'Aquila, Italy), Earthquake Engineering and Engineering Vibration 14 (2015) 141-156.

DOI: 10.1007/s11803-015-0012-7

Google Scholar

[2] M. Ferraioli, Inelastic torsional response of an asymmetric-plan hospital building in Italy, COST ACTION C26: Urban Habitat Constructions under Catastrophic Events - Proceedings of the Final Conference, Naples, Italy, 2010, pp.365-370.

DOI: 10.1201/b10559-3

Google Scholar

[3] M. Ferraioli, Multi-mode pushover procedure for deformation demand estimates of steel moment-resisting frames, International Journal of Steel Structures 17(2) (2017) 653-676.

DOI: 10.1007/s13296-017-6022-8

Google Scholar

[4] A.K. Chopra, R.K. Goel, A modal pushover analysis procedure for estimating seismic demands for buildings, Earthquake Engineering & Structural Dynamics 31(3) (2002) 561–582.

DOI: 10.1002/eqe.144

Google Scholar

[5] SeismoSoft, SeismoStruct, [Online] Available from URL: www. seismosoft. com, (2016).

Google Scholar

[6] C. Smerzini and R. Paolucci, Simbad: a database with selected input motions for displacement-based assessment and design, Research Project DPC Reluis, (2013).

Google Scholar

[7] SeismoSoft, SeismoMatch, [Online] Available from URL: www. seismosoft. com, (2016).

Google Scholar

[8] M. Ferraioli, A. Lavino, A. Mandara, An adaptive capacity spectrum method for estimating seismic response of steel moment-resisting frames, Ingegneria Sismica – International Journal of Earthquake Engineering 33(1-2) (2015) 47-60.

DOI: 10.4028/www.scientific.net/kem.763.82

Google Scholar

[9] M. Kreslin, and P. Fajfar, The extended N2 method considering higher mode effects in both plan and elevation, Bulletin of Earthquake Engineering 10 (2012) 695–715.

DOI: 10.1007/s10518-011-9319-6

Google Scholar