Strength Evaluation of Existing Reinforced Concrete Bridges PDF Download
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Author: Roy A. Imbsen
Publisher: Transportation Research Board National Research
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 148
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Book Description
Author: Roy A. Imbsen
Publisher: Transportation Research Board National Research
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 148
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Book Description
Author: R. A. Imbsen
Publisher:
ISBN: 9780309044158
Category : Concrete bridges
Languages : en
Pages : 0
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Book Description
Author: Roy A. Imbsen
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages :
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Author: American Association of State Highway and Transportation Officials. Subcommittee on Bridges and Structures
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 9782883940628
Category : Technology & Engineering
Languages : en
Pages : 316
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Book Description
The condition assessment of aged structures is becoming a more and more important issue for civil infrastructure management systems. The continued use of existing systems is, due to environmental, economical and socio-political assets, of great significance and is growing larger every year. Thus the extent of necessary repair of damaged reinforced concrete structures is of major concern in most countries today. Monitoring techniques may have a decisive input to limit expenditures for maintenance and repair of existing structures. Modern test and measurement methods as well as computational mechanics open the door for a wide variety of monitoring applications. The need for quantitative and qualitative knowledge has led to the development and improvement of surveillance techniques, which have already found successful application in other disciplines such as medicine, physics and chemistry. The design of experimental test and measurement systems is inherently an interdisciplinary activity. The specification of the instrumentation to measure the structural response will involve the skills of civil, electrical and computer engineers. The main aim of fib Commission 5, Structural servicer life aspects, is to provide a rational procedure to obtain an optimal technical-economic performance of concrete structures in service and to ensure a feedback of experience gained to design, execution, maintenance and rehabilitation. Against this background fib Task Group 5.1 Monitoring and Safety Evaluation of Existing Concrete Structures had been established to evaluate the existing practice worldwide. The objective of this state-of-art report is to summarize the most important inspection and measuring methods, to describe the working process and to evaluate the applicability to structural monitoring. Particular emphasis is placed upon non-destructive systems, lifetime monitoring, data evaluation and safety aspects.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
The use of concrete cores and nondestructive testing for strength evaluation of existing structures is illustrated through an evaluation of an existing concrete bridge. the results confirm that rebound hammer number should not be used alone as an indicator of in situ compressive strength. reasonably good correlation is demonstrated between pulse velocity and compressive strength, with a slight improvement when pulse velocity and rebound number are combined. a probabilistic approach to structural evaluation of existing structures is proposed in whih the variability of in situ concrete compression strength and uncertainty associated with indirect nondestructive testing are incorporated. an example of shear strength is given, which indicates a range of increase in shear strength compared with initial design parameters of 17-37% depending on the amount and type of data available.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
Compressive strength tests on concrete cores taken from existing bridge structuers are often used as a tool in evaluating the strength of the existing structure. Some difficulties are, however, encountered in interpreting the result of these tests and incorporating appropriate values in the usual equations for determining strength of structural members. In this paper, relationships between core tests, cylinder tests, and in situ strength ar reviewed based on data reported in the literature. Methods for incorporating core test data into a limit states design approach for strength evalulation are investigated. A method is proposed to convert data from compressive strength tests on cores into an equivalent design compressive strength that can be used in the normal design equations for strength. The method is applied to the analysis of an existing bridge for which core test data are available.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: T.C. Liu
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
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