Dynamic Response of Highway Bridges Subjected to Heavy Vehicles
Author: Hongyi Li
Publisher:
Published: 2005
Total Pages:
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Hongyi Li
Publisher:
Published: 2005
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: M. F. Green
Publisher:
Published: 1994
Total Pages: 15
ISBN-13:
DOWNLOAD EBOOKAuthor: M. F. Green
Publisher:
Published: 1990
Total Pages: 202
ISBN-13:
DOWNLOAD EBOOKAuthor: Steve C S Cai
Publisher: World Scientific
Published: 2020-09-23
Total Pages: 546
ISBN-13: 9811216436
DOWNLOAD EBOOKVehicle-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.
Author: Mark Finkle Green
Publisher:
Published: 1990
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor: David I. McLean
Publisher: Transportation Research Board
Published: 1998
Total Pages: 72
ISBN-13: 9780309068192
DOWNLOAD EBOOKThis 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.
Author: Hao Wu
Publisher: Springer Nature
Published:
Total Pages: 744
ISBN-13: 9819757142
DOWNLOAD EBOOKAuthor: John M. Biggs
Publisher:
Published: 1958
Total Pages: 250
ISBN-13:
DOWNLOAD EBOOKAuthor: Shabnam Darjani
Publisher:
Published: 2013
Total Pages: 164
ISBN-13:
DOWNLOAD EBOOKThrough the development and usage of high-strength materials, the design of more flexible bridges is unavoidable. It is assumed that limiting a bridge static deflection would control the excessive vibration caused by more flexible design. However, results of prior studies indicate that deflection limits do not necessarily address bridges vibrational issue. This dissertation addresses the parameters affecting bridge vibration and provides simple equations to compute bridge dynamic acceleration, velocity and displacement in both transient and steady state parts of the vibration. These equations can then be used to control bridges excessive vibration; and provide human comfort and structural performance. A comprehensive analytical study was performed to evaluate dynamic response of bridges under a moving truck load. The effect of bridge dynamic parameters and vehicle moving conditions are investigated, which includes bridge frequency, damping ratio, span length, girders distance, bracing, support conditions, truck speed, load sequence, axle's weight, and number of spans. Bridge and vehicle k-parameters, which represent the number of vibration cycles before the next excitation occurs, are developed to better explain the vibrational behavior of a bridge. The proposed equations include bridge frequency, static deflection for one axle load, and k-parameters. Finally, a case study is presented to highlight the application of the new approach.
Author: Eduardo Enrique Taft
Publisher:
Published: 2010
Total Pages: 115
ISBN-13:
DOWNLOAD EBOOKABSTRACT: Three FE models of heavy vehicles were used with three different bridges for computational dynamics analysis using the LS-DYNA computer code. The influence of several factors such as vehicle mass and speed, road surface condition, and loosely secured cargo were assessed. Dynamic load allowance (DLA) was determined for each vehicle-bridge combination. Practical conclusions regarding methods to mitigate DLAs were presented.