Journal ArticleDOI
Optimal strategy for inspection and repair of structural systems
TLDR
In this article, a new strategy for inspection and repair of structural elements and systems is presented, which minimizes the total cost of inspection with the constraints that the reliability of elements and/or of the structural system are acceptable.Abstract:
A new strategy for inspection and repair of structural elements and systems is presented. The total cost of inspection and repair is minimized with the constraints that the reliability of elements and/or of the structural system are acceptable. The design variables are the time intervals between inspections and the quality of the inspections. Numerical examples are presented to illustrate the performance of the strategy. The strategy can be used for any engineering system where inspection and repair are required.read more
Citations
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Journal ArticleDOI
Reliability-Based Optimization in Structural Engineering
TL;DR: In this article, the reliability estimation is limited to first-order reliability methods (FORM) for both component and systems reliability evaluation, and the solution strategies applying first order nonlinear optimization algorithms are described in detail with special attention to sensitivity analysis and stability of the optimization process.
Journal ArticleDOI
Life-cycle cost design of deteriorating structures
TL;DR: In this article, a lifetime optimization methodology for planning the inspection and repair of structures that deteriorate over time is introduced and illustrated through numerical examples, based on minimizing the expected total life-cycle cost while maintaining an allowable lifetime reliability for the structure.
Probabilistic models for life-cycle performance of deteriorating structures: review and future
TL;DR: In this paper, the authors review the research to date related to probabilistic models for maintaining and optimizing the lifecycle performance of deteriorating structures and formulates future directions in this field.
Journal ArticleDOI
Probabilistic models for life‐cycle performance of deteriorating structures: review and future directions
TL;DR: In this paper, the authors reviewed the research to date related to probabilistic models for maintaining and optimizing the life-cycle performance of deteriorating structures and formulates future directions in this field.
Journal ArticleDOI
Reliability-Based Service-Life Assessment of Aging Concrete Structures
TL;DR: In this paper, the impact on safety and serviceability of reinforced or prestressed concrete structures is assessed qualitatively using structural reliability principles to evaluate time-dependent reliability of concrete structures.
References
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Journal ArticleDOI
NLPQL: A fortran subroutine solving constrained nonlinear programming problems
TL;DR: The organization of NLPQL is discussed, including the formulation of the subproblem and the information that must be provided by a user, and the performance of different algorithmic options is compared with that of some other available codes.
Journal ArticleDOI
A Globally Convergent Method for Nonlinear Programming
TL;DR: In this paper, a stepsize procedure is proposed to maintain monotone decrease of an exact penalty function, and the convergence of the damped Newton method is globalized in unconstrained optimization.
Book
Application of Structural Systems Reliability Theory
Palle Thoft-Christensen,義定 室津 +1 more
TL;DR: Reliability Analysis of Structural Systems by the ?-Unzipping Method and Various Problems of Probability-Based Optimum Design.- 8.1.