In-Depth Investigation of Seismic Vulnerability of an Aging River Bridge Exposed to Scour

2017-10-01
AVŞAR, ÖZGÜR
Atak, Bengi
Caner, Alp
The stability and structural performance of aged structures under extreme events are rarely investigated. The severe deterioration in current condition of aged bridges can trigger premature failures under regular floods or even mild earthquakes. A reliable bridge inspection program is required for condition assessment. Currently, Turkey, a seismically active country, does not have a regular bridge inspection program or management systems. This deficiency was highlighted by the collapse of the Caycuma Bridge in 2012, killing 15 people during a regular flood event. The main contribution of this paper is to identify the need for in-depth investigation of aging bridges by integration of bridge inspection data with bridge seismic fragility curves and to address the seismic vulnerability of these bridges with a high level of scour. In this scope, one of the inspected bridges has been selected to determine the loss of seismic load resistance attributable to floods. The investigation has included use of newly developed bridge fragility curves for Turkey and advanced nonlinear analysis. (C) 2017 American Society of Civil Engineers.
JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES

Suggestions

Probabilistic assessment of earthquake insurance rates for important structures: Application to Gumusova-Gerede motorway
Yücemen, Mehmet Semih; ERDİK, MUSTAFA ÖZDER (Elsevier BV, 2008-01-01)
A probabilistic model is presented for the assessment of the earthquake insurance rates for important engineering structures, for which the seismic losses could be quite significant. The proposed model is used to estimate the earthquake insurance premiums for the structures taking place in the Bolu Mountain Crossing in the Gumusova-Gerede motorway Section, Turkey. The model requires two types of studies, namely: seismic hazard analysis and estimation of potential damage to structures based on damage probabi...
Stability of Bridge Piers Subjected to a Probable Flood Event Followed by a Probable Seismic Event
Klzllduman, H. Sema; Yanmaz, Ali Melih; Caner, Alp (American Society of Civil Engineers (ASCE), 2018-02-01)
Scour-induced reduction in bridge stability can develop vulnerabilities during a probable seismic event. This problem has been typically addressed by researchers as if these two extreme events have no joint probability of occurrence for a given range of time. This paper evaluates the stability of bridge piers subjected to various flood events followed by different seismic events with some known probability of occurrence. An analysis guideline is set for a probabilistic method to develop a matrix of analysis...
Renovation of a safety-inspection methodology for river bridges
Yanmaz, Ali Melih; Caner, Alp (American Society of Civil Engineers (ASCE), 2007-09-21)
River bridges and related infrastructural elements need to be monitored and inspected periodically for deterioration and loss of function due to aging, adverse hydraulic conditions, and chemical attacks. Necessary protective works and related actions should then be implemented to increase safety. Types of items to be inspected would be categorized as structural, geotechnical, hydraulic, and structural material conditions. Requirements for periodic inspections and the ways of handling these activities were d...
In Situ Lateral Load Testing of a Two-Story Solid Clay Brick Masonry Building
ALDEMİR, ALPER; Binici, Barış; Canbay, Erdem; Yakut, Ahmet (American Society of Civil Engineers (ASCE), 2018-10-01)
The seismic behavior of unreinforced masonry (URM) structures has usually been investigated by conducting laboratory tests. Such efforts, although useful in order to understand the response of single walls or subassemblages, cannot fully mimic the in situ seismic response of masonry buildings. In this study, in situ lateral load testing of a two-story full-scale URM building was conducted. First, forced vibration tests were performed to determine the vibration frequencies of the building. Afterwards, the bu...
A RANDOM-FIELD MODEL FOR THE ESTIMATION OF SEISMIC HAZARD
Yücemen, Mehmet Semih (Elsevier BV, 1993-10-01)
A stochastic framework is developed, in terms of the theory of homogeneous random functions, to estimate the seismic hazard associated with linearly extending seismic sources. The formulation is carried out in the space-time domain. An earthquake having at least a magnitude of m is assumed to occur whenever the total strain energy accumulated over the potential rupture plane exceeds the energy level corresponding to this magnitude, m. An alternative formulation, in which an earthquake is generated when the ...
Citation Formats
Ö. AVŞAR, B. Atak, and A. Caner, “In-Depth Investigation of Seismic Vulnerability of an Aging River Bridge Exposed to Scour,” JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES, pp. 0–0, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46409.