Published 1987 by U.S. Dept. of Transportation, Federal Highway Administration, Available through the National Technical Information Service in McLean, VA (6300 Georgetown Pike, McLean 22101-2296), [Springfield, Va .
Written in EnglishRead online
|Other titles||Weight in motion and response study of four inservice bridges.|
|Contributions||Fritz Engineering Laboratory., United States. Federal Highway Administration.|
|The Physical Object|
|Pagination||xxii, 178 p. :|
|Number of Pages||178|
Download Weigh-in-motion and response study of four inservice bridges.
Weight in motion and response study of four inservice bridges Abstract: This report presents the results of a 30 month investigation at Lehigh University during which an FHWA WIM system was redesigned and used to acquire and process simultaneous truck weight plus bridge response data f trucks crossing 4 inservice bridges in Pennsylvania.
Weigh-in-motion and response study of four inservice bridges, U.S. Department of Transportation, Federal Highway Administration Publication No. FHWA/RD/, Octoberp. ()Author: J. Daniels, J. Wilson, B.
Yen, L. Lai. Development of a Bridge Weigh-In-Motion System: A technology to convert the bridge response to the passage of traffic into data on vehicle configurations, speeds, times of travel and weights.
Be the first to review this by: 7. Weigh-in-motion and response study of four inservice bridges. Final report. composite bridges. The WIM+RESPONSE system can acquire and store simultaneous truck weight plus response data from any combination of simple and/or continuous spans with a total bridge length of feet.
For example, weight and response data can be obtained from one span while additional response data is obtained from another by: 1. Bridge Weigh-in-Motion (B-WIM) is the concept of using measured response on a bridge to calculate the static weights of passing traffic loads as they pass overhead at full highway speed.
Information Obtained in This Study 3. PROTOTYPE WIM+RESPONSE SYSTEM Overview of FHWA WIM System WIM+RESPONSE System Design Parameters Modification of FHWA WIM System WIM+RESPONSE System Documentation 4.
FIELD STUDY BRIDGES Bridge Selection Criteria Description and Instrumentation EB. Bridge Weigh-in-Motion (B-WIM) is a method of using instrumented bridges to weigh passing heavy vehicles.
Accurate vehicle velocity and axle spacing determination are crucial for accuracy of weighing results. The paper explains the basic B-WIM principles including the different methods of.
This paper develops a Bridge Weigh-in-Motion (B-WIM) system based on the acceleration response of the bridge. The objective is not to measure vehicle weights but to use the mean calculated weights Author: Arturo Gonzalez.
This study addresses the feasibility of using a single-span bridge as a weigh-in-motion (WIM) tool to quantify the gross vehicle weights (GVWs) of trucks inexpensively with a small number of sensors and without using axle detectors.
Field testing was performed on an interstate without any lane closures. Title and Subtitle STRUCTURAL EVALUATION OF IN-SERVICE BRIDGES USING W-I-M TECHNOLOGY - BRIEFING REPORT FOR ORAL PRESENTATION NO. 2 Technical Report Documentation Page 3.
Recipient' • Catalog No. Report Dote October 6. Performing Orgoni zotion Code ~i 8. Performing Organization Report No. WIM+RESfONSE STUDY OF FOUR IN-SERVICE BRIDGES The design of highway bridges in the U.S. is based on the Itstandardlt AASHTO Hand HS truck and lane loads. (Ref. 1) These design live loads have remained virtually unchanged in over 40 years and no longer accurately represent the majority of the heaviest trucks using the highway system.
In response, manyCited by: 2. Bridge weigh-in-motion systems are based on the measurement of strain on a bridge and the use of the measurements to estimate the static weights of passing traffic loads.
A diagram of the steps necessary to predict the axle weights of an unknown vehicle is shown in Fig. necessary strain measurements from a calibration vehicle (vehicle with known axle weights and spacing) are obtained to determine the lateral load distribution characteristics and the IL of the bridge (Steps A, B, and C in Fig.
1).Then, using the strain measurements recorded Cited by: 5. Keywords: structural monitoring system, weigh in motion, distortion fatigue, vibration fatigue, railway bridge, equipped sleeper.
1 Introduction Fatigue and fracture phenomena represent very important failure modes in railway bridges since such structures experience a very high number of stress cycles during their service life.
Field testing was performed on an interstate without any lane closures. Four preweighed trucks with different axle configurations traveled over a bridge at three different speeds and in two separate lanes.
Measured strain data were used to implement bridge weigh-in-motion (B-WIM) algorithms and calculate the corresponding velocities and GVWs. The Quest to Discover Life Beyond Earth - Explore Planet in Solar System and Beyond Documentary Touch Your Heart 1, watching Live now. Calibration of Elasto-Magnetic Sensors on In-Service Cable-Stayed Bridges for Stress Monitoring Carlo Cappello 1, *, Daniele Zonta 2, Hassan Ait Laasri 3, Branko Glisic 4.
Weigh-in-motion and response study of four inservice bridges, U.S. Department of Transportation, Federal Highway Administration Publication No. FHWA/RD/, Octoberp. A study of redundancy in two-girder bridges using the finite element method, Wim+response study of four in-service bridges - executive summary, Report to the.
The LGFBG is a novel optic strain sensor developed by Li and sensor can be multiplexed together to monitor the response within a large region of structural surface, as shown in Fig.
basic sensing unit of a LGFBG is displayed in Fig. 1 and consists of one inner FBG, one shield sleeve and two end anchor points.
A FBG has a certain Bragg wavelength Cited by: 2. System reliability evaluation of in-service cable-stayed bridges subjected to cable degradation Article in Structure and Infrastructure Engineering 14(11) April with 89 Reads.
1. Introduction. Weigh-in-motion (WIM) technology is one of the main tools for pavement management. It can provide an accurate description of the traffic on road network recording class of vehicles (trucks, cars and motorcycles by the weight, number of axle, distance of axle and size), total gross weight and axle weight (sometimes, weight per wheel), speed, Cited by: 2.
B-WIM or bridge weigh-in-motion is the process of converting an instrumented bridge into a scale for weighing passing vehicles. B-WIM for railway traffic is a subject which has been much less thoroughly studied than B-WIM for road by: Bridge weigh in motion (B-WIM) uses accurate sensing systems to transform an existing bridge into a mechanism to determine actual traffic loading.
This information on traffic loading can enable efficient and economical management of transport networks and is becoming a valuable tool for bridge safety assessment.
B-WIM can provide site-specific traffic loading on deteriorating bridges Cited by: The Trezói Bridge is located in the international “Beira Alta” route that links Portugal to Spain, at the km 62 north of Mortágua in the village of bridge was constructed as part of a project to replace existing bridges in the “Beira Alta” route, carried out during the decade of 50, and was opened to traffic in August Cited by: 8.
performance under loading. Developments in weigh-in motion technology, however, make it feasible to in vestigate existing bridges and provide more accurate site-specific load and response data for the evalua tion process.
Bridge rating is a continuous and vital activity for most bridge bureaus. Evaluating Scour At Bridges Publication No. FHWA NHI on *FREE* shipping on qualifying offers.
Evaluating Scour At Bridges Publication No. FHWA NHI Manufacturer: National Highway Institute. A Look at Bridges: A Study of Types, Histories, and the Marriage of Engineering and Architecture Cody Chase Connecticut College This study is thus organized to highlight the variations between each type, with a focus on the differentiation of forces and the strengths and weaknesses.
The additional sections on materials. Title and Subtitle LTBP Program’s Literature Review on Weigh-in-Motion Systems 5. Report Date June 6. Performing Organization Code: N/A 7. Author(s) Imad Al-Qadi, Hao Wang, Yanfeng Ouyang, Kirk Grimmelsman, and Jeffrey Purdy 8.
Performing Organization Report No. N/A 9. Performing Organization Name and Address Pennoni Associates Inc. weigh-in-motion system using instrumented bridges Acquisition of truck axle and gross weight information is necessary for structural and maintenance requirements of bridges and pavements.
A system is described combining traffic sensors and strain gages on highway bridge girders to obtain axle and gross weights. Standard Specification for Weigh-In-Motion System for Road Vehicles, Ministry of transport of India (draft) Conclusions of the workshop on WIM for enforcement, Amsterdam, 26/3/; International Society for Weigh-in-Motion - ISWIM (B.
Jacob) Experience of automatic number plate recognition and weigh in motion systems (V. Dolcemascolo).
Center for Transportation Research (), Traffic-Load Forecasting Using Weigh-in-Motion Data, University of Texas at Austin, Mar Cheung, M.
and W. Li (), â Reliability Assessment in Highway Bridge Design,â Canadian Journal of Civil Engineering, v 29, n 5, Octâ Bridges. See also what's at Wikipedia, your library, or elsewhere.
Broader terms: Transportation; Express highways; Related terms: Prefabricated bridges; Viaducts. ASCD Customer Service. Phone Monday through Friday a.m p.m. ASCD () Address North Beauregard St. Alexandria, VA Statistical Analysis of Weigh-in-Motion Data for Bridge Design in Vermont Final Technical Report TRC Eric M.
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Report Date July 6. Performing Organization Code 7. Author(s) James A. Reisert and Mark D. Bowman 8. Performing Organization Report No. FHWA/IN/JTRP/ 9. Performing Organization Name and Address.
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