Target Reliability Levels for Existing Bridges Considering Emergency and Crisis Situations
Keywords:Emergency situation, failure consequences, human safety, optimization, target reliability
AbstractSpecification of the target reliability levels is one of key issues required for the assessment of existing structures in emergency and crisis situations. International standards ISO 13822 and ISO 2394 indicate procedures for specification of the target reliability levels by optimisation of the total cost. This approach is applied in conjunction with the human safety criteria to estimate the target reliability levels of existing bridges considering emergency or crisis situations. For the reference period of one week obtained target reliabilities are in most cases within the range from 2.0 up to 3.5, thus significantly lower than those applied in the design of new structures.
HOLICKÝ, M. Optimisation of the target reliability for temporary structures. Civ Eng Environ Syst, 2013, vol. 30, no. 2, p. 87-96.
CASPEELE, R, ALLAIX, DL, STEENBERGEN, RDJM & SYKORA, M. On a partial factor approach for existing concrete structures: the Design Value Approach and Adjusted Partial Factor Method (accepted for publication). Struct Eng Int, 2013.
SÝKORA, M, HOLICKÝ, M & MARKOVÁ, J. Verification of existing reinforced concrete bridges using the semi-probabilistic approach. Eng.Struct., 2013, vol. 56, no. 0, p. 1419-1426.
VROUWENVELDER, ACWM & SCHOLTEN, N. Assessment Criteria for Existing Structures. Struct Eng Int, 2010, vol. 20, no. 1, p. 62-65.
CASAS, JR & WISNIEWSKI, D. Safety requirements and probabilistic models of resistance in the assessment of existing railway bridges. Struct Infrastruct E, 2013, vol. 9, no. 6, p. 529-545.
MALJAARS, J, STEENBERGEN, R, ABSPOEL, L & KOLSTEIN, H. Safety Assessment of Existing Highway Bridges and Viaducts. Struct Eng Int, 2012, vol. 22, no. 1, p. 112-120.
EN 1990, Eurocode - Basis of structural design.
ISO 2394, General principles on reliability for structures.
ISO 13822, Bases for design of structures - Assessment of existing structures.
VROUWENVELDER, ACWM. Developments towards full probabilistic design codes. Struct Saf, 2002, vol. 24, no. 2–4, p. 417-432.
TP 224. Ověřování existujících betonových mostů pozemních komunikací (in Czech - Assessment of existing concrete road bridges). Prague : Ministry of Transportation of the Czech Republic, 2010. p. 53.
JCSS. JCSS Probabilistic Model Code. Zurich : Joint Committee on Structural Safety, 2001.
SÝKORA, M, HOLICKÝ, M & MARKOVÁ, J. Target reliability levels for assessment of existing structures. In Proc. ICASP11. Leiden : CRC Press/Balkema, 2011, p. 1048-1056.
IMAM, BM & CHRYSSANTHOPOULOS, MK. Causes and Consequences of Metallic Bridge Failures. Struct Eng Int, 2012, vol. 22, no. 1, p. 93-98.
THOFT-CHRISTENSEN, P. Life-cycle cost-benefit (LCCB) analysis of bridges from a user and social point of view. Struct Eng Int, 2009, vol. 5, no. 1, p. 49-57.
SYKORA, M & HOLICKY, M. Target reliability levels for the assessment of existing structures - case study. In Proc. IALCCE 2012. Leiden : CRC Press/Balkema, 2012, p. 813-820.
STEENBERGEN, RDJM & VROUWENVELDER, ACWM. Safety philosophy for existing structures and partial factors for traffic loads on bridges. Heron, 2010, vol. 55, no. 2, p. 123-139.
STEWART, MG. Life-safety risks and optimisation of protective measures against terrorist threats to infrastructure. Structure and Infrastructure Engineering, 2011, vol. 7, no. 6, p. 431-440.
MELCHERS, RE. Structural Reliability Analysis and Prediction. Chichester, England : John Wiley & Sons Ltd., 2001. p. 437.
SÝKORA, M, HOLICKÝ, M & MANAS, P. Target Reliability for Bridges in Emergency Situations. In Proc. ICMT'13. Brno : University of Defence, 2013, p. 371-382.
ISO 13824, Bases for design of structures - General principles on risk assessment of systems involving structures.
LENNER, R, SYKORA, M & KEUSER, M. Partial factors for military loads on bridges. In Proc. ICMT'13. Brno : University of Defence, 2013, p. 409-418.
BUDESCU, DV & WALLSTEN, TS. Consistency in interpretation of probabilistic phrases. Organ Behav Hum Decis Process, 1985, vol. 36, no. 3, p. 391-405.
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