Bridge Safety, Maintenance and Management in a Life-Cycle Context
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Bridge Safety, Maintenance and Management in a Life-Cycle Context

Dan M. Frangopol, Sunyong Kim

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eBook - ePub

Bridge Safety, Maintenance and Management in a Life-Cycle Context

Dan M. Frangopol, Sunyong Kim

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About This Book

During the past two decades, it has been generally acknowledged that

  • life-cycle bridge analysis can be a systematic tool to address efficient and effective bridge management under uncertainty
  • life-cycle management at the bridge network level can lead to an improvement in the allocation of limited financial resources, ensuring the safety and functionality of the bridge network
  • life-cycle management of bridges and bridge networks based on resilience and sustainability can improve their resistance and robustness to extreme events such as earthquakes, tsunamis, floods, and hurricanes
  • bridge management should consider the impact of environmental conditions and climate change

This book addresses important concepts and approaches developed recently on bridge safety, maintenance, and management in a life-cycle context. Bridge life-cycle performance and cost analysis, prediction, optimization, and decision making under uncertainty are discussed. The major topics include bridge safety and service life prediction; bridge inspection and structural health monitoring;bridge maintenance; life-cycle bridge and bridge network management; optimum life-cycle bridge management planning; resilience and sustainability of bridges and bridge networksunder hazards; and bridge management considering climate change. By providing practical applications of the presented concepts and approaches, this book can help students, researchers, practitioners, infrastructure owners and managers, and transportation officialsto build up their knowledge of life-cycle bridge performance and cost management at bothproject level and network level under various deterioratingmechanisms, hazards and climate change effects.

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Information

Publisher
CRC Press
Year
2022
ISBN
9781000564532
Subtopic
Biologie
Edition
1

Chapter 1Probabilistic Concepts and Methods for Bridge Life-Cycle Analysis

NOTATIONS

A
= intact cross-sectional area
A(t)
= availability at time t
Ad
= damaged cross-sectional area
Cdir
= direct consequences
Cind
= indirect consequences
Cf
= expected monetary loss induced by structural failure
Cfail
= expected cost of failure
Cini
= initial cost including bridge design and construction cost
Cins
= cost of inspection
Clife
= total life-cycle cost
Cma
= cost of maintenance
DI
= damage tolerance index
Df
= damage factor
fXi(xi)
= probability density function of random variable Xi
FXi(xi)
= cumulative distribution function of random variable Xi
g(X)
= state function consisting of random variables X
h(t)
= hazard function
Ib
= Birnbaum importance factor
Icr
= criticality importance factor
Iraw
= risk achievement worth importance factor
Irrw
= risk reduction worth importance factor
Is
= structural importance factor
H(t)
= cumulative hazard function
L(t)
= mean residual life function
ne
= number of the event occurrences
pexd
= exceedance probability
pf
= probability of failure
pf,dmg
= probability of failure of a damaged system
pf,int
= probability of failure of an intact system
Pin
= initial structural performance
Plife
= lifetime structural performance
ps
= reliability
Pth
= threshold of structural performance
Q(t)
= time-variant functionality of a bridge under a hazard
Qdmg
= ultimate load capacity of a damaged structure
Qfun
= applied load when the structure cannot serve its intended purpose due to large deformation and significant damage
Qini
= initial functionality
Qint
= ultimate load capacity of an intact structural system
Qn
= nominal load effect
QU
= ultimate load
rdmg
= particular damage state
rint
= pristine system state
rp
= deterioration rate
rp,v
= deterioration rate after preventive maintenance
RK,dir
= direct risk
RK,ind
= indirect risk
Rn
= nominal strength
Rdmf
= redundancy factor for the collapse limit state
Rf
= redundancy factor
Rfun
= redundancy factor for the functionality limit state
Rrsd
= residual strength factor
Rrsv
= reserve strength factor
Rult
= redundancy factor for the ultimate collapse state
RU
= plastic resistance of a structure
RK
= risk
RB
= robustness index
RBrisk
= risk-based robustness index
RI
= redundancy index
RS
= functionality-based resilience
S(t)
= survival function
SF
= safety factor
tini
= damage initiation time
tini,e
= damage initiation time after essential maintenance
tlife,0
= initial service life
tlife,em
= extended service life with essential maintenance
tli...

Table of contents