تعداد نشریات | 161 |
تعداد شمارهها | 6,532 |
تعداد مقالات | 70,501 |
تعداد مشاهده مقاله | 124,115,094 |
تعداد دریافت فایل اصل مقاله | 97,218,997 |
Load Test and Model Calibration of a Horizontally Curved Steel Box-Girder Bridge | ||
Civil Engineering Infrastructures Journal | ||
مقاله 8، دوره 48، شماره 2، اسفند 2015، صفحه 305-322 اصل مقاله (1.23 M) | ||
نوع مقاله: Research Papers | ||
شناسه دیجیتال (DOI): 10.7508/ceij.2015.02.007 | ||
نویسندگان | ||
Freydoon Rezaie* 1؛ Gona Ahmadi2؛ Seyed Mohammad Farnam3 | ||
1Assitant Professor, Department of Civil Engineering, Bu-Ali Sina University, Hamedan, Iran. | ||
2M.Sc., Department of Civil Engineering, Bu-Ali Sina University, Hamedan, Iran. | ||
3Ph.D. Candidate, Department of Civil Engineering, Bu-Ali Sina University, Hamedan, Iran. | ||
چکیده | ||
In this paper, full scale load test of a horizontally curved steel box-girder bridge is carried out in order to detect structural defects, which reportedly result in unwanted vibrations in nearby buildings. The bridge is tested under the passage of six heavy vehicles at different speeds, so as to determine its static and dynamic responses. A total number of one hundred and two (102) sensors are used to measure the displacements, strains, and accelerations of different points of the bridge. It is observed that the bridge vibrates at a fundamental frequency of 2.6 Hz intensively and the first mode of vibration is torsional instead of flexural. The dominant frequency of vibration of the nearby buildings is computed to be approximately 2.5Hz using rational formulas. Thus, nearness of the fundamental frequency of the bridge to those of the adjacent buildings may be causing resonance phenomenon. However, in static load tests, low ranges of strain and displacement illustrated adequate structural capacity and appropriate safety under static loads. Numerical models are created using ANSYS and SAP2000 software products, so as to design the loading test and calibrate the finite element models. The connections of the transversal elements to the girders, transversal element spacing, and changes of the stiffness values of the slabs were found to be the most influential issues in the finite elements calibration process. Finally, considering the total damage of all members, the final health score of the bridge was evaluated as 89% indicating that the bridge is in a very good situation. | ||
کلیدواژهها | ||
Dynamic and static loading tests؛ Frequencies of vibration؛ Horizontally curved bridges؛ Steel box-girder | ||
مراجع | ||
AASHTO Standard Specification for Highway Bridges. (2002). 17th ed., American Association of State Highway and Transportation Officials. 444 North Capitol Street, N.W., Suite 249 Washington, D.C. 20001, ISBN: 156051-171-0. AASHTO guide specifications for horizontally curved steel girder highway bridges with design examples for I-girder and Box-girder bridges. (2003). American Association of State and Highway Transportation Officials. By ballot of the AASHTO Highway Subcommittee on Bridges and Structures (HSCOBS). Adewuyi, A.P. and Wu, Z.S. (2009). “Vibration-Based structural health monitoring techniques using statistical features from strain measurements”, ARPN Journal of Engineering and Applied Sciences, 4(3), 38-47. Ataeia, S., Aghakouchaka, A.A., Marefatb, M.S. and Mohammadzadeh, S. (2005). “Sensor fusion of a railway bridge load test using neural networks”, Expert Systems with Applications, 29(3), 678-683. Chang, C.J. and White, D.W. (2008). “An assessment of modeling strategies for composite curved steel I-girder bridges”, Engineering Structures, 30(11), 2991-3002. Darius, B., Zenonas, K., Donatas, J. and Arturas, K. (2013). “Load testing and model updating of a single span composite steel-concrete railway”, Procedia Engineering, 57, 127-135. Demetrios, E. and Tonias, P.E. (1995). Bridge engineering, New York: McGraw-Hill, New York. Ghorbanpour, A.H. and Ghassemieh, M. (2011). “Vertical vibration of composite floor by neural network analysis”, Civil Engineering Infrastructures Journal, 42(1), 117-126. Gomez, H.C., Fanning, P.J., Fenga, M.Q. and Lee, S. (2011). “Testing and long-term monitoring of a curved concrete box girder bridge”, Engineering Structures, 33(10), 2861-2869. Green, M.F. and Cebon, D. (1994). “Dynamic response of highway bridges to heavy vehicle loads: Theory and experimental validation”, Journal of Sound Vibration, 170(1), 51-78. Hui, L., Shujin, L., Jinping, O., Xuefeng, Z., Wensong, Z., Yan, Y., Na, L. and Zhiqiang, L. (2011). “Investigation of vortex-induced vibration of a suspension bridge with two separated steel box-girders based on field measurements”, Engineering Structures, 33(6), 1894-1907. Ilze, P. and Ainars, P. (2013). “The dynamic amplification factor of the bridges in Latvia”, Procedia Engineering, 57, 851-858. Kavatani, M., Kobayashi, Y. and Kawaki, H. (2000). “Influence of elastomeric bearings on traffic-induced vibration of highway bridges”, TRR National Research Council, 1696(1), 76-82. Kistera, G., Wintera, D., Badcocka, R.A., Gebremichaelb, Y.M., Boyleb, W.J.O., Meggittc, B.T., Grattanb, K.T.V. and Fernandod, G.F. (2007). “Structural health monitoring of a composite bridge using Bragg grating sensors. Part 1: Evaluation of adhesives and protection systems for the optical sensors”, Engineering Structures, 29(3), 440-448. Kwak, H.G., Seo, Y.J. and Jung, C.M. (2000). “Effects of the slab casting sequences and the drying shrinkage of concrete slabs on the short-term and long-term behavior of composite steel box-girder bridges”, Engineering Structure, 22(11), 1453-1466. McCullagh, J.J., Galchev, T., Peterson, R.L., Gordenker, R., Zhang, Y., Lynch, J. and Najafi, K. (2014). “Long-term testing of a vibration harvesting system for the structural health monitoring of bridges”, Sensors and Actuators A: Physical, 217, 139-150. Mohammad, S.M., Gargary, E.G. and Ataei, S. (2004). “Load test of a plain concrete arch railway bridge of 20-m span”, Construction and Building Materials, 18(9), 661-667. Montens, M., Vollery, C. and Park, H. (2003). “Advantages of twin I beams composite solutions for highway and railway bridges”, Steel Structures International Journal, 3(1), 65-72. Naeeni, S.T.O., and Fazli, M. (2011). “Numerical investigation of effect of bridge pier shape on dynamic forces”, Civil Engineering Infrastructures Journal, 44(5), 741-751. Office of the Deputy for Technical Affairs Bureau of Technical Affairs and Standards of I.R of Iran. (2000). Standard loads for bridges, No.139, Tehran, Iran Scott, D.S., Joseph, J.P., Christopher, M.I. and Kevin, J.A. (2006). “Load testing for assessment and rating of highway bridges, Phase III: Technology transfer to the SCDOT”, South Carolina Department of Transportation Research and Development Executive Committee. Research Project No. 655. United States. Federal Highway Administration. Clemson University Civil Engineering Department. Sevim, B., Bayraktar, A., Altunisik, A.C., Atamturktur, S. and Birinci, F. (2011). “Finite element model calibration effects on the earthquake response of masonry arch bridges”, Finite Elements in Analysis and Design, 47(7), 621-634. Sun, J.K., Ho, K.K, Radiance, C., Jin, P., Gyu, S.K. and Deok, K.L. (2013). “Operational field monitoring of interactive vortex-induced vibrations between two parallel cable-stayed”, Journal of Wind Engineering and Industrial Aerodynamics, 123(Part A), 143-154. Wang, H., Li, A.Q. and Li, J. (2010). “Progressive finite element model calibration of a long-span suspension bridge based on ambient vibration and static measurements”, Engineering Structures, 32(9), 2546-2556. Yang, Y.B., Lin, C.L., Yau, J.D. and Chang, D.W. (2004). “Mechanism of resonance and cancellation for train-induced vibrations on bridges with elastic bearings”, Journal of Sound Vibration, 269(1-2), 345-360. Yarnold, M.T. and Moon, F.L. (2015). ”Temperature-based structural health monitoring baseline for long-span bridges”, Engineering Structures, 86, 157-167. Yau, J.D., Wu, Y.S. and Yang, Y.B. (2001). “Impact response of bridges with elastic bearings to moving loads”, Journal of Sound and Vibration, 248(1), 9-30. | ||
آمار تعداد مشاهده مقاله: 2,583 تعداد دریافت فایل اصل مقاله: 2,400 |