Reliability Based Assessment of FRP Rehabilitation of Reinforced Concrete Girders
Reliability Based Assessment of FRP Rehabilitation of Reinforced Concrete Girders

Author: Patrick Carlo Wilcox

Publisher:

Published: 2008

Total Pages: 532

ISBN-13:

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The use of prefabricated fiber reinforced polymer (FRP) strips to rehabilitate concrete structures has increased in popularity over the past few years. As such, many design codes and guidelines have been developed to enable designers to use the FRP materials with confidence in their performance. In this work, FRP durability test results are used with a widely known degradation prediction model to determine the value of FRP material properties used in rehabilitation and strengthening of concrete over time. Equations are presented based on the test data to predict the tensile strength, tensile modulus, short beam shear strength, and flexural strength over time of FRP prefabricated strips from three manufacturers. Corresponding degradation data is presented for the adhesive recommended be each manufacturer for use. The degradation model is used on example girders used in previous research by Atadero and Karbhari (1996) for illustration of differences in the codes and guidelines design property values and those possessed by FRP materials over time to demonstrate the use of the time-based reliability factor within the LRFD model presented in an earlier report to Caltrans. A reliability analysis is conducted in each example case to compare the results. A proposed shift in design philosophy is presented to enable inclusion of material degradation over time and thereby make concrete rehabilitation with FRP strips more efficient and cost effective.

Futures in Mechanics of Structures and Materials
Futures in Mechanics of Structures and Materials

Author: Thiru Aravinthan

Publisher: CRC Press

Published: 2008-11-20

Total Pages: 915

ISBN-13: 1482266504

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Futures in Mechanics of Structures and Materials is a collection of peer-reviewed papers presented at the 20th Australasian Conference on the Mechanics of Structures and Materials (ACMSM20, University of Southern Queensland, Toowoomba, Queensland, Australia, 2 - 5 December 2008) by academics, researchers and practicing engineers mainly from Austral

Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures
Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures

Author: George Deodatis

Publisher: CRC Press

Published: 2014-02-10

Total Pages: 1112

ISBN-13: 1315884887

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Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures contains the plenary lectures and papers presented at the 11th International Conference on STRUCTURAL SAFETY AND RELIABILITY (ICOSSAR2013, New York, NY, USA, 16-20 June 2013), and covers major aspects of safety, reliability, risk and life-cycle performance of str

Hydro-Environmental Analysis
Hydro-Environmental Analysis

Author: James L. Martin

Publisher: CRC Press

Published: 2013-12-04

Total Pages: 5742

ISBN-13: 1138000868

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Focusing on fundamental principles, Hydro-Environmental Analysis: Freshwater Environments presents in-depth information about freshwater environments and how they are influenced by regulation. It provides a holistic approach, exploring the factors that impact water quality and quantity, and the regulations, policy and management methods that are necessary to maintain this vital resource. It offers a historical viewpoint as well as an overview and foundation of the physical, chemical, and biological characteristics affecting the management of freshwater environments. The book concentrates on broad and general concepts, providing an interdisciplinary foundation. The author covers the methods of measurement and classification; chemical, physical, and biological characteristics; indicators of ecological health; and management and restoration. He also considers common indicators of environmental health; characteristics and operations of regulatory control structures; applicable laws and regulations; and restoration methods. The text delves into rivers and streams in the first half and lakes and reservoirs in the second half. Each section centers on the characteristics of those systems and methods of classification, and then moves on to discuss the physical, chemical, and biological characteristics of each. In the section on lakes and reservoirs, it examines the characteristics and operations of regulatory structures, and presents the methods commonly used to assess the environmental health or integrity of these water bodies. It also introduces considerations for restoration, and presents two unique aquatic environments: wetlands and reservoir tailwaters. Written from an engineering perspective, the book is an ideal introduction to the aquatic and limnological sciences for students of environmental science, as well as students of environmental engineering. It also serves as a reference for engineers and scientists involved in the management, regulation, or restoration of freshwater environments.

Service Life Estimation and Extension of Civil Engineering Structures
Service Life Estimation and Extension of Civil Engineering Structures

Author: Vistasp M. Karbhari

Publisher: Elsevier

Published: 2010-12-20

Total Pages: 318

ISBN-13: 0857090925

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Service life estimation is an area of growing importance in civil engineering both for determining the remaining service life of civil engineering structures and for designing new structural systems with well-defined periods of functionality. Service life estimation and extension of civil engineering structures provides valuable information on the development and use of newer and more durable materials and methods of construction, as well as the development and use of new techniques of estimating service life.Part one discusses using fibre reinforced polymer (FRP) composites to extend the service-life of civil engineering structures. It considers the key issues in the use of FRP composites, examines the possibility of extending the service life of structurally deficient and deteriorating concrete structures and investigates the uncertainties of using FRP composites in the rehabilitation of civil engineering structures. Part two discusses estimating the service life of civil engineering structures including modelling service life and maintenance strategies and probabilistic methods for service life estimation. It goes on to investigate non-destructive evaluation and testing (NDE/NDT) as well as databases and knowledge-based systems for service life estimation of rehabilitated civil structures and pipelines.With its distinguished editors and international team of contributors Service life estimation and extension of civil engineering structures is an invaluable resource to academics, civil engineers, construction companies, infrastructure providers and all those with an interest in improving the service life, safety and reliability of civil engineering structures. - A single source of information on the service life of reinforced concrete and fibre-reinforced polymer (FRP) rehabilitated structures - Examines degradation mechanisms in composites for rehabilitation considering uncertainties in FRP reliability - Provides an overview of probabilistic methods for rehabilitation and service life estimation of corroded structures

Reliability of Structures, Second Edition
Reliability of Structures, Second Edition

Author: Andrzej S. Nowak

Publisher: CRC Press

Published: 2012-12-20

Total Pages: 411

ISBN-13: 0415675758

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Reliability of Structures enables both students and practising engineers to appreciate how to value and handle reliability as an important dimension of structural design. It discusses the concepts of limit states and limit state functions, and presents methodologies for calculating reliability indices and calibrating partial safety factors. It also supplies information on the probability distributions and parameters used to characterize both applied loads and member resistances. This revised and extended second edition contains more discussions of US and international codes and the issues underlying their development. There is significant revision and expansion of the discussion on Monte Carlo simulation, along with more examples. The book serves as a textbook for a one-semester course for advanced undergraduates or graduate students, or as a reference and guide to consulting structural engineers. Its emphasis is on the practical applications of structural reliability theory rather than the theory itself. Consequently, probability theory is treated as a tool, and enough is given to show the novice reader how to calculate reliability. Some background in structural engineering and structural mechanics is assumed. A solutions manual is available upon qualifying course adoption.