GASB 34--methods for Condition Assessment and Preservation

GASB 34--methods for Condition Assessment and Preservation PDF Author: Parsons Brinckerhoff
Publisher: Transportation Research Board
ISBN: 0309099323
Category : Highway departments
Languages : en
Pages : 135

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Book Description
TRB¿s National Cooperative Highway Research Program (NCHRP) Report 608: GASB 34¿Methods for Condition Assessment and Preservation examines methodologies that integrate infrastructure inventory, condition assessments, minimum acceptable condition levels, and funding decisions with Governmental Accounting Standards Board (GASB) Statement No. 34 reporting requirements. The report also examines the operational and financial impacts of reporting under GASB 34. NCHRP Report 608 updates the findings contained in NCHRP Report 522: A Review of DOT Compliance with GASB 34 Requirements.

GASB 34--methods for Condition Assessment and Preservation

GASB 34--methods for Condition Assessment and Preservation PDF Author: Parsons Brinckerhoff
Publisher: Transportation Research Board
ISBN: 0309099323
Category : Highway departments
Languages : en
Pages : 135

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Book Description
TRB¿s National Cooperative Highway Research Program (NCHRP) Report 608: GASB 34¿Methods for Condition Assessment and Preservation examines methodologies that integrate infrastructure inventory, condition assessments, minimum acceptable condition levels, and funding decisions with Governmental Accounting Standards Board (GASB) Statement No. 34 reporting requirements. The report also examines the operational and financial impacts of reporting under GASB 34. NCHRP Report 608 updates the findings contained in NCHRP Report 522: A Review of DOT Compliance with GASB 34 Requirements.

Diagnostic and Proof Load Tests on Bridges

Diagnostic and Proof Load Tests on Bridges PDF Author: Fikret Necati Catbas
Publisher: Frontiers Media SA
ISBN: 2889662128
Category : Technology & Engineering
Languages : en
Pages : 212

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Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Non-destructive Testing of Wisconsin Highway Bridges

Non-destructive Testing of Wisconsin Highway Bridges PDF Author: Alireza Ghorbanpoor
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 116

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Book Description


Manual on Service Life of Corrosion-damaged Reinforced Concrete Bridge Superstructure Elements

Manual on Service Life of Corrosion-damaged Reinforced Concrete Bridge Superstructure Elements PDF Author: Ali Akbar Sohanghpurwala
Publisher: Transportation Research Board
ISBN: 0309098629
Category : Bridges, Concrete
Languages : en
Pages : 72

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Book Description


Development and Layout of a Protocol for the Field Performance of Concrete Deck and Crack Sealants

Development and Layout of a Protocol for the Field Performance of Concrete Deck and Crack Sealants PDF Author: José Antonio Pincheira
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 62

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Book Description
The main objective of this project was to develop and layout a protocol for the long-term monitoring and assessment of the performance of concrete deck and crack sealants in the field. To accomplish this goal, a total of six bridge decks were chosen for study. The decks have ages that vary from 4 to 30 years old, are all in good condition, though some presented a variety of longitudinal, transverse and diagonal cracking. In each deck, test segments were laid out along one lane in four of the six bridges. Drill powder samples were extracted in each segment in order to determine the in-situ, near-surface chloride ion content of the deck. Laboratory analyses of the samples showed that the chloride ion content varied between 3.2 lb/cy for the younger decks (3 years old) and 20.8 lb/cy for the older decks (28 years old). Based on the recommendations of a previous laboratory investigation, a pool of the best performing deck and crack sealants were selected to be applied in the decks. In two bridges, deck segments were sealed with four deck sealants while one segment was left unsealed to be used as a control segment. Additionally, the cracks in each of these segments were sealed with five crack sealants. While two other decks were also scheduled for sealing as part of this phase of the project, they were not done because the required curing time for some of the products was longer than deemed acceptable by DOT crews for these high traffic bridges. It is recommended, however, that every effort be made to have these decks be sealed in the near future. The remaining two bridges had been sealed at the time of construction. While no specific information could be secured about the product used in these decks, the low chloride ion content in these decks suggested that the applied product has helped reduce the ingress of chloride ions. Therefore, it is recommended that these decks continue to be monitored over time. Based on the inspections and the data collected in the field, a protocol and schedule for the continuing monitoring of sealant performance is presented.

Bridge Technology Report

Bridge Technology Report PDF Author: Architecture Technology Architecture Technology Corpor
Publisher: Elsevier
ISBN: 1483284972
Category : Computers
Languages : en
Pages : 176

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Book Description
Please note this is a Short Discount publication. As LANs have proliferated, new technologies and system concepts have come to the fore. One of the key issues is how to interconnect networks. One means of interconnection is to use a 'bridge'. Other competing technologies are repeaters, routers, and gateways. Bridges permit traffic isolation, connect network segments together and operate at the MAC layer. Further, because they operate at the MAC layer, they can handle a variety of protocols such as TCP/IP, SNA, and X.25. This report focuses on the specific technology of bridging two networks and the competing approaches of spanning tree [backed by DEC] and the source route technology [backed by IBM]. Both of these approaches are compared and their strengths and weaknesses described and contrasted. Other approaches that combine the two approaches as well as novel approaches to this problem are described. In a world of increasing complexity of networks, it is imperative that the user understand the possible means of bridging two networks and the capabilities of the various vendors products. The report focuses itself on developing that critical understanding.

Protocols for Collecting and Using Traffic Data in Bridge Design

Protocols for Collecting and Using Traffic Data in Bridge Design PDF Author: Bala Sivakumar
Publisher: Transportation Research Board
ISBN: 0309155479
Category : Technology & Engineering
Languages : en
Pages : 125

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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Report 683: Protocols for Collecting and Using Traffic Data in Bridge Design explores a set of protocols and methodologies for using available recent truck traffic data to develop and calibrate vehicular loads for superstructure design, fatigue design, deck design, and design for overload permits. The protocols are geared to address the collection, processing, and use of national weigh-in-motion (WIM) data. The report also gives practical examples of implementing these protocols with recent national WIM data drawn from states/sites around the country with different traffic exposures, load spectra, and truck configurations. The material in this report will be of immediate interest to bridge engineers. This report replaces NCHRP Web-Only Document 135: Protocols for Collecting and Using Traffic Data in Bridge Design. Appendices A through F for NCHRP Report 683 are available only online.

Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures

Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures PDF Author: Carlo Pellegrino
Publisher: Springer Nature
ISBN: 3030918777
Category : Technology & Engineering
Languages : en
Pages : 1454

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Book Description
This book gathers the latest advances and innovations in the field of quality control and improvement of bridges and structures, as presented by international researchers and engineers at the 1st Conference of the European Association on Quality Control of Bridges and Structures (EUROSTRUCT 2021), held in Padua, Italy on August 29 – September 1, 2021. Contributions include a wide range of topics such as testing and advanced diagnostic techniques for damage detection; SHM and AI, IoT and machine learning for data analysis of bridges and structures; fiberoptics and smart sensors for long-term SHM; structural reliability, risk, robustness, redundancy and resilience for bridges; corrosion models, fatigue analysis and impact of hazards on infrastructure components; bridge and asset management systems, and decision-making models; Life-Cycle Analysis, retrofit and service-life extension, risk management protocols; quality control plans, sustainability and green materials.

Advances in Non-destructive Evaluation

Advances in Non-destructive Evaluation PDF Author: C. K. Mukhopadhyay
Publisher: Springer Nature
ISBN: 9811601860
Category : Technology & Engineering
Languages : en
Pages : 394

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Book Description
This book comprises the proceedings of the Conference and Exhibition on Non Destructive Evaluation, (NDE 2019). The contents of the book encompass a vast spectrum from Conventional to Advanced NDE including novel methods, instrumentation, sensors, procedures and data analytics as applied to all industry segments for quality control, periodic maintenance, life estimation, structural integrity and related areas. This book will be a useful reference for students, researchers and practitioners.

Safety and Reliability of Bridge Structures

Safety and Reliability of Bridge Structures PDF Author: Khaled Mahmoud
Publisher: CRC Press
ISBN: 1439859558
Category : Technology & Engineering
Languages : en
Pages : 649

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Book Description
Recent surveys of the U.S. infrastructure‘s condition have rated a staggering number of bridges structurally deficient or functionally obsolete. While not necessarily unsafe, a structurally deficient bridge must be posted for weight and have limits for speed, due to its deteriorated structural components. Bridges with old design features that canno