Journal ArticleDOI
Life-cycle performance, management, and optimisation of structural systems under uncertainty: accomplishments and challenges 1
TLDR
In this paper, the authors highlight recent accomplishments in the life-cycle performance assessment, maintenance, monitoring, management and optimisation of structural systems under uncertainty, and identify challenges in this area.Abstract:
Our knowledge to model, analyse, design, maintain, monitor, manage, predict and optimise the life-cycle performance of structures and infrastructures under uncertainty is continually growing. However, in many countries, including the United States, the civil infrastructure is no longer within desired levels of performance and safety. Decisions regarding civil infrastructure systems should be supported by an integrated reliability-based life-cycle multi-objective optimisation framework by considering, among other factors, the likelihood of successful performance and the total expected cost accrued over the entire life-cycle. The primary objective of this paper is to highlight recent accomplishments in the life-cycle performance assessment, maintenance, monitoring, management and optimisation of structural systems under uncertainty. Challenges are also identified.read more
Citations
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Application of Gaussian process metamodel in structural finite element model updating applying dynamic measured data
TL;DR: A Modular Bayesian approach to update a finite element model (FEM) of a lab-scaled box girder bridge applying natural frequencies results specify a considerable drop in stiffness of concrete in damaged phase which implies the structure's properties are predicted accurately.
Journal ArticleDOI
Review on Artificial Intelligence-aided Life Extension Assessment of Offshore Wind Support Structures
TL;DR: In this article , the authors provide a constructive and systematical discussion based on the relevant development, unsolved issues, gaps, and misconceptions in the literature regarding the fields of study that are building blocks of artificial intelligence-aided life extension assessment for offshore wind turbine support structures.
Journal ArticleDOI
Study on stress and deformation of shield tunnel plate under unloading of foundation pit excavation
Shuaihua Ye,Jian Zhou +1 more
TL;DR: In this article, a loading model and calculation method of tunnel segment under lateral unloading are put forward to solve the problem of the influence of foundation pit excavation on the segments and bolts of adjacent shield tunnel.
Journal ArticleDOI
Efficient algorithm for probability-based design optimisation of complex structures and related issues
Ping Yi,Gengdong Cheng,Lin Xu +2 more
TL;DR: In this article, the authors used the sequential approximate programming (SAP) strategy for RIA and extended to PMA, and showed that SAP with RIA can reduce the total number of function evaluations notably, whereas SAP with PMA is more efficient and less dependent on probabilistic distributions.
References
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TL;DR: In this article, the authors present the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields, including computer programming and mathematics.
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TL;DR: This book brings together the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields.
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American Association of State Highway and Transportation Officials. Highway Drainage Guidelines American Association of State Highway and Transportation Officials. LRFD Bridge Design Specifications
TL;DR: The 2003 AASHTO Subcommittee on Design, Task Force on Geometric Design was held in Charleston, South Carolina during the period July 13 through July 16, 2003 as mentioned in this paper and the purpose of the meeting was to review several documents undergoing revision, review the proposed revisions to the superelevation discussion in the Green Book, consider future research, and other administrative matters of concern to the Task Force Membership.
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