engleski

Bridge Case Studies on the Assignment of Partial Safety Factors for the Assessment of Existing Structures

Aging bridges in combination with an ever-growing traffic volume are a matter of concern all over the world. Consequently, the reassessment of existing bridges is gaining importance rapidly. This paper presents two bridge case studies considered within the IABSE Task Group 1.3 “Calibration of Partial Safety Factors for the Assessment of Existing Bridges”. The so-called design value method (DVM) and adjusted partial factor method (APFM), introduced in fib Bulletin 80 and both relying on a partial factor format, are considered in this paper. The objectives are (i) to illustrate how DVM and APFM can be used when specifying partial safety factors for assessment of existing bridges, and (ii) to discuss some of the assumptions that are implied by these methods. Two case studies are considered for illustration in this paper: a single span reinforced concrete slab and a 3-span continuous reinforced concrete slab.

Existing structures, Bridges, Case study, Reinforced concrete, Partial safety factors

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