Dynamic Impact Factors for Bridges

Dynamic Impact Factors for Bridges PDF Author: David I. McLean
Publisher: Transportation Research Board
ISBN: 9780309068192
Category : Technology & Engineering
Languages : en
Pages : 72

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Book Description
This synthesis will be of interest to state department of transportation and consulting bridge, structural, and research engineers. The synthesis describes the current state of the practice for determining dynamic impact factors for bridges. Information for the synthesis was collected by surveying U.S. and Canadian transportation agencies and by conducting a literature search using domestic and foreign sources. This report of the Transportation Research Board documents relevant background and recent information with regard to vehicular dynamic load effects on bridges. It provides details on the basic concepts of bridge dynamics, including identification of the main variables affecting bridge dynamic response. In addition, current code provisions for accounting for vehicular dynamic load effects for new bridge design and load evaluation of existing bridges are reported, including a discussion on the background of the provisions. Finally, a discussion of observed field problems associated with vehicular dynamic load effects, as obtained from the survey, are included.

Dynamic Impact Factors for Bridges

Dynamic Impact Factors for Bridges PDF Author: David I. McLean
Publisher: Transportation Research Board
ISBN: 9780309068192
Category : Technology & Engineering
Languages : en
Pages : 72

Get Book Here

Book Description
This synthesis will be of interest to state department of transportation and consulting bridge, structural, and research engineers. The synthesis describes the current state of the practice for determining dynamic impact factors for bridges. Information for the synthesis was collected by surveying U.S. and Canadian transportation agencies and by conducting a literature search using domestic and foreign sources. This report of the Transportation Research Board documents relevant background and recent information with regard to vehicular dynamic load effects on bridges. It provides details on the basic concepts of bridge dynamics, including identification of the main variables affecting bridge dynamic response. In addition, current code provisions for accounting for vehicular dynamic load effects for new bridge design and load evaluation of existing bridges are reported, including a discussion on the background of the provisions. Finally, a discussion of observed field problems associated with vehicular dynamic load effects, as obtained from the survey, are included.

Vehicle-bridge Interaction Dynamics

Vehicle-bridge Interaction Dynamics PDF Author: Yeong-Bin Yang
Publisher: World Scientific
ISBN: 9812567178
Category : Technology & Engineering
Languages : en
Pages : 565

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Book Description
The commercial operation of the bullet train in 1964 in Japan markedthe beginning of a new era for high-speed railways. Because of thehuge amount of kinetic energy carried at high speeds, a train mayinteract significantly with the bridge and even resonate with it undercertain circumstances. Equally important is the riding comfort of thetrain cars, which relates closely to the maneuverability of the trainduring its passage over the bridge at high speeds.

Vehicle-bridge Interaction Dynamics

Vehicle-bridge Interaction Dynamics PDF Author: Yeong-Bin Yang
Publisher: World Scientific
ISBN: 9812388478
Category : Science
Languages : en
Pages : 565

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Book Description
The commercial operation of the bullet train in 1964 in Japan marked the beginning of a new era for high-speed railways. Because of the huge amount of kinetic energy carried at high speeds, a train may interact significantly with the bridge and even resonate with it under certain circumstances. Equally important is the riding comfort of the train cars, which relates closely to the maneuverability of the train during its passage over the bridge at high speeds.This book is unique in that it is devoted entirely to the interaction between the supporting bridges and moving trains, the so-called vehicle-bridge interaction (VBI). Finite element procedures have been developed to treat interaction problems of various complexities, while the analytical solutions established for some typical problems are helpful for identifying the key parameters involved. Besides, some field tests were conducted to verify the theories established.This book provides an up-to-date coverage of research conducted on various aspects of the VBI problems. Using the series of VBI elements derived, the authors study a number of frontier problems, including the impact response of bridges with elastic bearings, the dynamic response of curved beam to moving centrifugal forces, the stability and derailment of trains moving over bridges shaken by earthquakes, the impact response of two trains crossing on a bridge, the steady-state response of trains moving over elevated bridges, and so on.

Bridges for High-Speed Railways

Bridges for High-Speed Railways PDF Author: Rui Calcada
Publisher: CRC Press
ISBN: 0203892542
Category : Technology & Engineering
Languages : en
Pages : 304

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Book Description
Since the 1980s in Europe high-speed rail has emerged rapidly as a means of transportation, and in the upcoming years many more tunnel, bridge and other infrastructure projects will be developed across the continent. At the same time design concepts and technologies have improved and innovative structural ideas have appeared, since trains travellin

Advances in Asian Mechanism and Machine Science

Advances in Asian Mechanism and Machine Science PDF Author: Nguyen Van Khang
Publisher: Springer Nature
ISBN: 3030918920
Category : Technology & Engineering
Languages : en
Pages : 976

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Book Description
This book presents the proceedings of the 6th IFToMM Asian Mechanisms and Machine Science Conference (Asian MMS), held in Hanoi, Vietnam on December 15-18, 2021. It includes peer-reviewed papers on the latest advances in mechanism and machine science, discussing topics such as biomechanical engineering, computational kinematics, the history of mechanism and machine science, gearing and transmissions, multi-body dynamics, robotics and mechatronics, the dynamics of machinery, tribology, vibrations, rotor dynamics and vehicle dynamics. A valuable, up-to-date resource, it offers an essential overview of the subject for scientists and practitioners alike, and will inspire further investigations and research.

CIGOS 2019, Innovation for Sustainable Infrastructure

CIGOS 2019, Innovation for Sustainable Infrastructure PDF Author: Cuong Ha-Minh
Publisher: Springer Nature
ISBN: 981150802X
Category : Science
Languages : en
Pages : 1288

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Book Description
This book presents selected articles from the 5th International Conference on Geotechnics, Civil Engineering Works and Structures, held in Ha Noi, focusing on the theme “Innovation for Sustainable Infrastructure”, aiming to not only raise awareness of the vital importance of sustainability in infrastructure development but to also highlight the essential roles of innovation and technology in planning and building sustainable infrastructure. It provides an international platform for researchers, practitioners, policymakers and entrepreneurs to present their recent advances and to exchange knowledge and experience on various topics related to the theme of “Innovation for Sustainable Infrastructure”.

Topics in Dynamics of Bridges, Volume 3

Topics in Dynamics of Bridges, Volume 3 PDF Author: Alvaro Cunha
Publisher: Springer Science & Business Media
ISBN: 1461465192
Category : Technology & Engineering
Languages : en
Pages : 146

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Book Description
Topics in Dynamics of Bridges, Volume 3: Proceedings of the 31st IMAC, A Conference and Exposition on Structural Dynamics, 2013, the third volume of seven from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Vibration Monitoring Damping Damage Detection Health Monitoring Dynamic Behavior Dynamic Modeling Human-Induced Vibration

Highway Vehicle-bridge Coupled Vibrations: Numerical Simulations And Applications

Highway Vehicle-bridge Coupled Vibrations: Numerical Simulations And Applications PDF Author: Steve C S Cai
Publisher: World Scientific
ISBN: 9811216436
Category : Technology & Engineering
Languages : en
Pages : 546

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Book Description
Vehicle-bridge interaction happens all the time on roadway bridges and this interaction performance carries much useful information. On one hand, while vehicles are traditionally viewed as loads for bridges, they can also be deemed as sensors for bridges' structural response. On the other hand, while bridges are traditionally viewed as carriers for vehicle weight, they can also be deemed as scales that can weigh the vehicle loads. Based on these observations, a broad area of studies based on the vehicle-bridge interaction have been conducted in the authors' research group. Understanding the vehicle and bridge interaction can help develop strategies for bridge condition assessment, bridge design, and bridge maintenance, as well as develop insight for new research needs.This book documents fundamental knowledge, new developments, and state-of-the-art applications related to vehicle-bridge interactions. It thus provides useful information for graduate students and researchers and therefore straddles the gap between theoretical research and practical applications.

Recent Advances in Materials, Mechanics and Structures

Recent Advances in Materials, Mechanics and Structures PDF Author: Suman Saha
Publisher: Springer Nature
ISBN: 9811933715
Category : Technology & Engineering
Languages : en
Pages : 711

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Book Description
The book presents the select proceedings of the second International Conference on Materials, Mechanics and Structures (ICMMS 2022). The book highlights the latest developments, innovations and applications in the diverse range of areas of civil engineering. It covers the findings of recent research works across the globe on various topics such as civil engineering materials; concrete and masonry structures; composite structures; structural mechanics; fluid-structure interaction; repair, rehabilitation and retrofitting of the structures; new technologies in structural design and construction; bridge engineering, structural dynamics, earthquake engineering, etc. This book will be useful for beginners, researchers and professionals working in the different areas of civil engineering.

Bridge Evaluation, Repair and Rehabilitation

Bridge Evaluation, Repair and Rehabilitation PDF Author: A.S. Nowak
Publisher: Springer Science & Business Media
ISBN: 9400921535
Category : Technology & Engineering
Languages : en
Pages : 618

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Book Description
Evaluation, repair and rehabilitation of bridges are increasingly important topics in the effort to deal with the deteriorating infrastructure. For example, in the United States about 40 percent of the nation's 570,000 bridges are classified, according to the Federal Highway Administra tion's (FHW A) criteria, as deficient and in need of rehabilitation and replacement. In other countries the situation is similar. FHW A estimates the cost of a bridge replacement and reha bilitation program at 50 billion dollars. The major factors that have contributed to the present situation are: the age, inadequate maintenance, increasing load spectra and environmental contamination. The deficient bridges are posted, repaired or replaced. The disposition of bridges involves clear economical and safety implications. To avoid high costs of replacement or repair, the evaluation must accurately reveal the present load carrying capacity of the struc ture and predict loads and any further changes in the capacity (deterioration) in the applicable time span. Accuracy of bridge evaluation can be improved by using the recent developments in bridge diagnostics, structural tests, material tests, structural analysis and probabilistic methods. There is a need for an international exchange of advanced experience to increase the research effi ciency. The Workshop is organized on the premise that the exchange of existing American and European experience in the area of bridge evaluation, repair and rehabilitation is beneficial for both parties involved.