none 10.1193/1.3050449 Wiley Wiley (John Wiley & Sons) 311 36099689 5867 2026012504131800258 10.1002 2026-01-25T15:04:22Z 2009-02-03T18:46:04Z 49 Earthquake Spectra Earthquake Spectra 8755-2930 1944-8201 02 2009 25 1 Rui Pinho University of Pavia Structural Mechanics Department Via Ferrata 1 27100 Pavia Italy Ricardo Monteiro University of Porto Civil Engineering Department Rua Dr. Roberto Frias, s/n 4200‐465 Porto Portugal Chiara Casarotti European Centre for Training and Research in Earthquake Engineering (EUCENTRE) 27100 Pavia Italy Raimundo Delgado University of Porto Civil Engineering Department Rua Dr. Roberto Frias, s/n 4200‐465 Porto Portugal Nonlinear static procedures constitute an important tool in design office application of performance‐based earthquake engineering concepts, and for this reason, they have been extensively developed and promoted in the last decade or so. However, these efforts focused predominantly on the assessment of buildings, rather than bridges, and hence there is currently a need to verify the validity in the application of such pushover‐based methods for the assessment of bridges or viaducts. In this work, therefore, by considering a wide set of bridge configurations subjected to equally varying seismic input intensity levels, four commonly employed nonlinear static procedures (CSM, N2, MPA, ACSM) are scrutinized and compared, with a view to establish their adequacy for the seismic assessment of existing continuous span bridges. Results seem to indicate that all methods are able to predict displacement response with good accuracy, while force estimation, on the other hand, is reasonably attained only by those approaches where higher modes effects are explicitly accounted for. 02 2009 02 2009 143 159 10.1193/1.3050449 http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 10.1193/1.3050449 https://onlinelibrary.wiley.com/doi/10.1193/1.3050449 http://sage.cnpereading.com/paragraph/article/?doi=10.1193/1.3050449 https://onlinelibrary.wiley.com/doi/pdf/10.1193/1.3050449 https://onlinelibrary.wiley.com/doi/pdf/10.1193/1.3050449 https://pubs.geoscienceworld.org/earthquake-spectra/article/25/1/143/586962/assessment-of-continuous-span-bridges-through