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Non-Linear Seismic Response of Single Span Simply Supported Slab-On-Girder Steel Highway Bridges With Damaged Bearings
Date
1995-01-01
Author
Dicleli, Murat
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Non-linear inelastic seismic response of existing single span simply supported bridges with damaged bearings that can remain stable and slide are investigated. It is found that narrower bridges with longer spans may have considerable sliding displacements and fall off their supports if adequate seat width is not provided. It is also found that for the same ratio of friction coefficient to peak ground acceleration, the sliding displacement of a structural system is linearly proportional to the amplitude of the peak ground acceleration beyond a certain threshold value. The distribution of the energy content of an earthquake, which is related to its velocity time history, can be an indication of the propensity of an earthquake to cause high sliding displacements. Ground motions with high frequency content or high Ap/Vp ratio may produce smaller sliding displacements than those with relatively lower Ap/Vp ratios.
URI
https://hdl.handle.net/11511/81295
https://www.semanticscholar.org/paper/Non-Linear-Seismic-Response-of-Single-Span-Simply-M.Dicleli-Bruneau/5b0b95a783a2e28e2ac35a87938e2ea2c2ed9345#paper-header
Conference Name
Seventh Canadian Conference On Earthquake Engineering, 01 Ocak 1995
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Department of Engineering Sciences, Conference / Seminar
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AN ENERGY APPROACH TO SLIDING OF SINGLE-SPAN SIMPLY SUPPORTED SLAB-ON-GIRDER STEEL HIGHWAY BRIDGES WITH DAMAGED BEARINGS
Dicleli, Murat (Wiley, 1995-03-01)
This paper investigates the non-linear inelastic seismic response of existing single-span simply supported bridges having bearings which can remain stable and slide after their anchor bolts are ruptured. A simplified equivalent model is developed for the inelastic analysis of these single-span simply supported bridges. Non-linear inelastic time-history analyses are conducted for various acceleration inputs. It is found that narrower bridges with longer spans may have considerable sliding displacements and f...
SEISMIC PERFORMANCE OF SINGLE-SPAN SIMPLY SUPPORTED AND CONTINUOUS SLAB-ON-GIRDER STEEL HIGHWAY BRIDGES
Dicleli, Murat (1995-10-01)
Seismic response of single-span simply supported and continuous slab-on-girder steel bridges is studied. Linear elastic and nonlinear inelastic analyses are conducted for various ground-acceleration inputs. Bearings with higher stiffnesses that are closer to the edge of the deck are found to attract larger forces than other bearings, whereas bearings with small stiffness attract almost equal forces regardless of the width of the brid e. Assuming that the anchors of otherwise stable bearings are severed, sli...
Economical seismic retrofitting of bridges in regions of low to moderate risk of seismic activity
Dicleli, Murat; Mokha, A; Zayas, V (2003-01-01)
The economical efficiency of friction pendulum bearings (FPB) for seismic retrofitting of typical Illinois bridges is studied. A typical bridge was carefully selected by Illinois Department of Transportation (IDOT) for the purpose of this study. The seismic analysis of the bridge revealed that the bearings, and substructures of the bridge are vulnerable and need to be retrofitted. A conventional retrofitting strategy is developed for the bridge and the cost of retrofit is estimated. Next, the bridge is furt...
Experimental Determination of Resistance Characteristics of Support Details Used in Prestressed Concrete Bridge Girders
Baran, Eray; French, Catherine; Schultz, Arturo (American Society of Civil Engineers (ASCE), 2009-09-01)
Static load tests were performed on support details used at the ends of prestressed concrete pedestrian bridge girders to determine the resistance characteristics of girder supports in the direction perpendicular to the longitudinal axis of the girders. The specimens tested represent support details that have also been widely used in prestressed concrete highway bridges in Minnesota and in other states. Two specimens, one representing the free-end detail and one representing the restrained-end detail were s...
IImpact of friction pendulum bearings on the seismic retrofitting cost of typical bridges with wall type piers in the state of illinois
Dicleli, Murat; Mokha, Anoop; Zayas, Victor; Constantinou, Michael C. (null; 2003-08-10)
The economical efficiency of friction pendulum bearings (FPB) for seismic retrofitting of typical Illinois bridges with wall type piers is studied. A typical bridge with heavy wall piers was carefully selected by Illinois Department of Transportation (IDOT) for the purpose of this study. The seismic analysis of the bridge revealed that the bearings, and substructures of the bridge are vulnerable and need to be retrofitted. A conventional retrofitting strategy is developed for the bridge and the cost of retr...
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M. Dicleli, “Non-Linear Seismic Response of Single Span Simply Supported Slab-On-Girder Steel Highway Bridges With Damaged Bearings,” Montreal, Kanada, 1995, p. 1, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/81295.