Seismic Response Analysis of Continuous Multispan Bridges with Partial Isolation
Joint Authors
Tubaldi, E.
Dall’Asta, A.
Dezi, L.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-20
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Partially isolated bridges are a particular class of bridges in which isolation bearings are placed only between the piers top and the deck whereas seismic stoppers restrain the transverse motion of the deck at the abutments.
This paper proposes an analytical formulation for the seismic analysis of these bridges, modelled as beams with intermediate viscoelastic restraints whose properties describe the pier-isolator behaviour.
Different techniques are developed for solving the seismic problem.
The first technique employs the complex mode superposition method and provides an exact benchmark solution to the problem at hand.
The two other simplified techniques are based on an approximation of the displacement field and are useful for preliminary assessment and design purposes.
A realistic bridge is considered as case study and its seismic response under a set of ground motion records is analyzed.
First, the complex mode superposition method is applied to study the characteristic features of the dynamic and seismic response of the system.
A parametric analysis is carried out to evaluate the influence of support stiffness and damping on the seismic performance.
Then, a comparison is made between the exact solution and the approximate solutions in order to evaluate the accuracy and suitability of the simplified analysis techniques for evaluating the seismic response of partially isolated bridges.
American Psychological Association (APA)
Tubaldi, E.& Dall’Asta, A.& Dezi, L.. 2015. Seismic Response Analysis of Continuous Multispan Bridges with Partial Isolation. Shock and Vibration،Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1077993
Modern Language Association (MLA)
Tubaldi, E.…[et al.]. Seismic Response Analysis of Continuous Multispan Bridges with Partial Isolation. Shock and Vibration No. 2015 (2015), pp.1-15.
https://search.emarefa.net/detail/BIM-1077993
American Medical Association (AMA)
Tubaldi, E.& Dall’Asta, A.& Dezi, L.. Seismic Response Analysis of Continuous Multispan Bridges with Partial Isolation. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1077993
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1077993