SEISMIC PERFORMANCE OF SINGLE-SPAN SIMPLY SUPPORTED AND CONTINUOUS SLAB-ON-GIRDER STEEL HIGHWAY BRIDGES

Date

1995-10-01

Author

Dicleli, Murat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

185
views

0
downloads

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, sliding of the bridges is also a investigated. It is found that narrower bridges with longer spans may have considerable sliding displacements and may fall off their supports if adequate seat width is not provided. Wider bridges with shorter spans can survive rather severe earthquakes, even more so in eastern North America. It is found that if bearings are not damaged, 2- and 3-lane continuous bridges with two spans of up to 40 and 50 m each, respectively, are capable to resist earthquakes with 0.4g peak acceleration without any damage to columns. However, bridges with only about 80% of these spans can survive similarly intense earthquakes if the bearings are damaged.

URI

https://hdl.handle.net/11511/41888

Journal

JOURNAL OF STRUCTURAL ENGINEERING-ASCE

DOI

https://doi.org/10.1061/(asce)0733-9445(1995)121:10(1497)

Collections

Department of Engineering Sciences, Article

Suggestions

OpenMETU
Core

Seismic performance of multispan simply supported slab-on-girder steel highway bridges Dicleli, Murat (1995-01-01) The seismic response of existing multispan simply supported slab-on-girder steel highway bridges, never designed to resist earthquakes, is studied. Elastic response spectrum analyses are conducted for bridges with different bearing stiffness, span length and number of spans. It is found that the response of two-span simply supported bridges is highly dependent on the stiffness of fixed bearings on the abutments, but this effect vanishes as the number of spans increases. The transverse direction seismic capa...
Performance improvement of seismic-isolated bridges near active faults using elastic-gap devices Dicleli, Murat (2017-04-27) For seismic isolated bridges (SIBs) subjected to near-fault (NF) ground motions with directivity effect, the isolator displacements tend to be considerably large. Consequently, isolators with very large dimensions may be required for SIBs located in NF zones. This may lead to very large expansion joints and very large seat widths as well. In this research, the efficiency of providing supplemental elastic-gap devices to improve the performance of seismic-isolated bridges (SIBs) in near-fault (NF) zones is in...
Seismic Response of Multi-Span Simply Supported Bridges Having Steel Columns Dicleli, Murat (1996-01-01) Seismic response of existing multi-span simply supported steel highway bridges, never designed to resist earthquakes, is studied. Dynamic analyses are conducted for bridges with different bearing stiffness, span length and number of spans. It is found that the response of two span simply supported bridges is highly dependent on the stiffness of fixed-bearings on the abutments, but this effect vanishes as the number of spans increases. The transverse direction seismic capacity of bridges having more than two...
Elastic-gap device to enhance the performance of seismic-isolated bridges in near fault zones Dicleli, Murat (2018-09-28) For seismic isolated bridges (SIBs) subjected to near-fault (NF) ground motions with directivity effect, the isolator displacements tend to be considerably large. Consequently, isolators with very large dimensions may be required for SIBs located in NF zones. This may lead to very large expansion joints and very large seat widths as well. In this research, the efficiency of providing supplemental elastic-gap devices to improve the performance of seismic-isolated bridges (SIBs) in near-fault (NF) zones is in...
Structural Applications of a Reinforced Concrete Beam-Column-Slab Connection Model for Earthquake Loading Burak Bakır, Burcu (null; 2008-10-12) Analytical studies to evaluate the seismic response of reinforced concrete moment resisting frame structures, with and without joint deformations, demonstrated that the predicted inelastic behavior was not accurate when the joint region was assumed to be rigid. One of the main purposes of the research program was to develop a joint model that accounts for deterioration of shear strength and stiffness within the connection region and concentrated rotation due to rebar slip. The experimental data on joint dis...

Citation Formats

M. Dicleli, “SEISMIC PERFORMANCE OF SINGLE-SPAN SIMPLY SUPPORTED AND CONTINUOUS SLAB-ON-GIRDER STEEL HIGHWAY BRIDGES,” JOURNAL OF STRUCTURAL ENGINEERING-ASCE, pp. 1497–1506, 1995, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41888.