Condition Assessment of Corroded Prestressed Concrete

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Condition Assessment of Corroded Prestressed Concrete ...

The problem we are trying to solve is the condition assessment of corroded prestressed concrete (PC) bridge girders in New England. The problem is important because that PC bridge girders are a critical component of highway bridges.

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Project C3.2018: Condition Assessment of Corroded ...

03-02-2020  Concrete spalling and prestressing strand corrosion not only cause losses in prestress but also lead to premature failures of PC bridges. We propose to 1) conduct multiplysical field inspection (using 3D photogrammetry, radar, impact-echo, and ultrasound) and to 2) develop an integrated assessment framework for predicting the level of structural damage and prestress losses for PC

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Condition Assessment of Corroded Prestressed Concrete ...

Condition Assessment of Corroded Prestressed Concrete Bridge Girders. The problem the research team is trying to solve is the condition assessment of corroded prestressed concrete (PC) bridge girders in New England. The problem is important because that PC bridge girders are a critical component of highway bridges.

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STR-845: CONDITION ASSESSMENT OF CORRODED

CONDITION ASSESSMENT OF CORRODED REINFORCEMENT BOND TO CONCRETE BY ACOUSTIC EMISSION MONITORING Ahmed A. Abouhussien Memorial University of Newfoundland, Canada ... These sensors enabled the characterization of bond slip in prestressed concrete bridge girders (Ho et al. 2015) and early recognition of bond splitting failure (Wu et al. 2015 ...

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Assessment of corroded prestressed and posttensioned ...

17-06-2021  Prestressed structures are commonly used all over the world. They might be subjected to degradation, such as corrosion of the prestressing steel. This can influence the resistance of these structures and induce early failure. Hence, prediction of the corrosion level is important in the assessment of existing prestressed structures.

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Condition Assessment of a 45-year old prestressed concrete ...

Condition Assessment of a 45-year old prestressed concrete bridge using NDT and verification of the results Alexander Taffe1, Bernd Hillemeier2 and Andrei Walther3 1BAM – Federal Institute for Material’s Research and Testing Unter den Eichen 87, 12205 Berlin (Germany) +49 30 8104-4244; fax +49 30 8104-1447; [email protected]

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Assessment of corroded prestressed and posttensioned ...

Request PDF Assessment of corroded prestressed and posttensioned concrete structures: A review Prestressed structures are commonly used all over the world. They might be subjected to ...

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Assessment of mechanical properties of corroded ...

20-05-2020  Abstract: The corrosion of prestressing steel in prestressed concrete bridges is a critical issue for bridge maintenance. To assess structures with corroded strands, it is necessary to define the mechanical properties of the strands and their influence on the structural behavior. In this study,

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Structural Condition Assessment Of Prestressed Concrete ...

STRUCTURAL CONDITION ASSESSMENT OF PRESTRESSED CONCRETE TRANSIT GUIDEWAYS by ROBERT Z. SHMERLING B.S. University of California, Berkeley, 2001 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Civil and Environmental Engineering in the College of Engineering and Computer Science

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CONDITION ASSESSMENT OF CORRODED REINFORCEMENT

In this paper, acoustic emission (AE) monitoring was used to evaluate the bond behaviour of corroded reinforcement in reinforced concrete prism samples. The embedded reinforcing steel bars were pre-corroded to successive levels of corrosion up to 5% mass loss of steel by impressed current accelerated corrosion process. A total of 24 samples with variable bar embedded length (50 and 200 mm) and ...

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Structural Condition Assessment Of Prestressed Concrete ...

STRUCTURAL CONDITION ASSESSMENT OF PRESTRESSED CONCRETE TRANSIT GUIDEWAYS by ROBERT Z. SHMERLING B.S. University of California, Berkeley, 2001 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Civil and Environmental Engineering in the College of Engineering and Computer Science

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PCCP: Condition Assessment, Repair, and Replacement Strategies

Prestressed concrete cylinder pipe (PCCP) is used by Reclamation and other agencies for water conveyance, primarily as siphons on non-redundant transmission systems. The goal of this study was to survey the state of the art in PCCP condition assessment, repair and service extension methods, and replacement strategies to provide operators

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CONDITION ASSESSMENT OF CORRODED REINFORCEMENT

In this paper, acoustic emission (AE) monitoring was used to evaluate the bond behaviour of corroded reinforcement in reinforced concrete prism samples. The embedded reinforcing steel bars were pre-corroded to successive levels of corrosion up to 5% mass loss of steel by impressed current accelerated corrosion process. A total of 24 samples with variable bar embedded length (50 and 200 mm) and ...

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(PDF) CONDITION ASSESSMENT OF PRESTRESSED CONCRETE ...

Condition assessment of prestressed concrete structures with static and dynamic damage indexes. By Xinqun Zhu. Condition Assessment of Prestressed Concrete Beams Using Cyclic and Monotonic Load Tests. By Xinqun Zhu. Performance of FRCM-Strengthened RC Beams Subject to Fatigue.

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Assessment of mechanical properties of corroded ...

20-05-2020  Abstract: The corrosion of prestressing steel in prestressed concrete bridges is a critical issue for bridge maintenance. To assess structures with corroded strands, it is necessary to define the mechanical properties of the strands and their influence on the structural behavior. In this study,

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CONDITION ASSESSMENT OF PRESTRESSED CONCRETE

01-01-2015  Eight prestressed T-shaped beams were tested using the cyclic load test (CLT) method as proposed by ACI 437-12 followed by the ACI 318-11 monotonic (24-hour) load test method. The objective of the study is to assess the ability of these methods to evaluate damage in prestressed concrete

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CONDITION ASSESSMENT AND REPAIR OF PRESTRESSED CONCRETE ...

The water reclamation supply system of the Palo Verde Nuclear Power Generating Station is a 36.5 mi (58.7 km) long pipeline consisting of 114, 96, and 66 in. (2896, 2438, and 1676 mm) diameter prestressed concrete cylinder pipe (PCCP), extending from the Wastewater Treatment Plant in Phoenix to the Water Reclamation Plant at Palo Verde Nuclear Generating Station.

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Identification and Repair of Corroded Prestressed Tendons

Identification and Repair of Corroded Prestressed Tendons. Problem. Age and condition of many prestressed highway bridges should be examined for strand corrosion as part of an ongoing inspection program to provide better public safety and to provide a proactive approach to evaluating structural condition, and assessing asset value and its remaining life.

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Performance of 45-year-old corroded prestressed concrete ...

It is considered that these observations potentially have serious implications for the assessment of the remaining life of existing prestressed concrete bridges located in marine environments. The following sections describe, in turn, the bridge beams and their properties, the load tests that were performed and the experimental results obtained.

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structural condition assessment of prestressed concrete ...

This study is expected to provide information to make better decisions for operations, maintenance and safety requirements; to be a benchmark for future studies, to establish a procedure and methodology for structural condition assessment, and to contribute to the general research body of knowledge in condition assessment and structural health monitoring.

Get price

(PDF) CONDITION ASSESSMENT OF PRESTRESSED CONCRETE ...

Condition assessment of prestressed concrete structures with static and dynamic damage indexes. By Xinqun Zhu. Condition Assessment of Prestressed Concrete Beams Using Cyclic and Monotonic Load Tests. By Xinqun Zhu. Performance of FRCM-Strengthened RC Beams Subject to Fatigue.

Get price

Structural Condition Assessment Of Prestressed Concrete ...

STRUCTURAL CONDITION ASSESSMENT OF PRESTRESSED CONCRETE TRANSIT GUIDEWAYS by ROBERT Z. SHMERLING B.S. University of California, Berkeley, 2001 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Civil and Environmental Engineering in the College of Engineering and Computer Science

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Condition assessment of prestressed concrete structures ...

Condition assessment of prestressed concrete structures with static and dynamic damage indexes book. By X.Q. Zhu H. Hao. Book Concrete Repair, Rehabilitation and Retrofitting II. Click here to navigate to parent product. Edition 1st Edition. First Published 2008. Imprint CRC Press.

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CONDITION ASSESSMENT OF PRESTRESSED CONCRETE

01-01-2015  Eight prestressed T-shaped beams were tested using the cyclic load test (CLT) method as proposed by ACI 437-12 followed by the ACI 318-11 monotonic (24-hour) load test method. The objective of the study is to assess the ability of these methods to evaluate damage in prestressed concrete

Get price

Condition assessment of a prestressed concrete girder and ...

Condition assessment of a prestressed concrete girder and slab bridge for increased axle loadings B A Sundaram*, S Parivallal, K Kesavan, A K F Ahmed, K Ravisankar, K Ramanjaneyulu and N R Iyer . CSIR-Structural Engineering Research Centre, CSIR Madras Complex, Taramani, Chennai, India

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Residual strength assessment and destructive testing of ...

pretensioned concrete bridge beams that had corroded pre-tensioned reinforcement. The beams were from the 1969 Tiwai Point Bridge in Southland, New Zealand. The condition of the beams tested ranged from good condi-tion to those with severe corrosion in 4 of the 21 prestressed strands. A proposed methodology for assessment of the residual

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RESIDUAL LIFE EVALUATION OF PRESTRESSED REINFORCED ...

assessment method of reinforced concrete (RC) structures, in which both corrosion and fatigue ... condition are integrated to find the service life of the weakest strand, ... 2.4 Stress Concentration Factor of Corroded Prestressing Strands ...

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Identification and Repair of Corroded Prestressed Tendons

Identification and Repair of Corroded Prestressed Tendons. Problem. Age and condition of many prestressed highway bridges should be examined for strand corrosion as part of an ongoing inspection program to provide better public safety and to provide a proactive approach to evaluating structural condition, and assessing asset value and its remaining life.

Get price

structural condition assessment of prestressed concrete ...

This study is expected to provide information to make better decisions for operations, maintenance and safety requirements; to be a benchmark for future studies, to establish a procedure and methodology for structural condition assessment, and to contribute to the general research body of knowledge in condition assessment and structural health monitoring.

Get price

Condition Assessment Of Prestressed Concrete Cylindrical ...

Prestressed Concrete Cylinder Pipe Rehabilitation, Repair, and Dec 4, 2012 ... prestressed concrete cylinder pipe (PCCP) fail- ... ucts in water, sewer, and some stormwater ap- ... Condition assessment of PCCP assets. 1212 tech 1.pdf

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