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Structural behavior of arch dams considering experimentally validated prototype model using similitude and scaling laws

  • Altunisik, Ahmet Can (Department of Civil Engineering, Karadeniz Technical University) ;
  • Kalkan, Ebru (Department of Civil Engineering, Karadeniz Technical University) ;
  • Basaga, Hasan B. (Department of Civil Engineering, Karadeniz Technical University)
  • Received : 2017.12.18
  • Accepted : 2018.05.17
  • Published : 2018.07.25

Abstract

As one of the most important engineering structures, arch dams are huge constructions built with human hands and have strategical importance. Because of the fact that long construction duration, water supply, financial reasons, major loss of life and material since failure etc., the design of arch dams is very important problem and should be done by expert engineers to determine the structural behavior more accurately. Finite element analyses and non-destructive experimental measurements can be used to investigate the structural response, but there are some difficulties such as spending a long time while modelling, analysis and in-situ testing. Therefore, it is more useful to conduct the research on the laboratory conditions and to transform the obtained results into real constructions. Within the scope of this study, it is aimed to determine the structural behavior of arch dams considering experimentally validated prototype laboratory model using similitude and scaling laws. Type-1 arch dam, which is one of five arch dam types suggested at the "Arch Dams" Symposium in England in 1968 is selected as reference prototype model. The dam is built considering dam-reservoir-foundation interaction and ambient vibration tests are performed to validate the finite element results such as dynamic characteristics, displacements, principal stresses and strains. These results are considered as reference parameters and used to determine the real arch dam response with different scales factors such as 335, 400, 416.67 and 450. These values are selected by considering previously examined dam projects. Arch heights are calculated as 201 m, 240 m, 250 m and 270 m, respectively. The structural response is investigated between the model and prototype by using similarity requirements, field equations, scaling laws etc. To validate these results, finite element models are enlarged in the same scales and analyses are repeated to obtain the dynamic characteristics, displacements, principal stresses and strains. At the end of the study, it is seen that there is a good agreement between all results obtained by similarity requirements with scaling laws and enlarged finite element models.

Keywords

References

  1. Altunisik, A.C., Gunaydin, M., Sevim, B. and Adanur, S. (2017), "System identification of arch dam model strengthened with cfrp composite materials", Steel Compos. Struct., 25(2), 231-244. https://doi.org/10.12989/SCS.2017.25.2.231
  2. Altunisik, A.C., Gunaydin, M., Sevim, B. and Bayraktar, A. (2016), "Retrofitting effect on the dynamic properties of modelarch dam with and without reservoir water using ambientvibration test methods", J. Struct. Eng., 142(10), 04016069. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001520
  3. Altunisik, A.C., Gunaydin, M., Sevim, B., Bayraktar, A. and Adanur, S. (2015), "CFRP composite retrofitting effect on the dynamic characteristics of arch dams", Soil Dyn. Earthq. Eng., 74, 1-9. https://doi.org/10.1016/j.soildyn.2015.03.008
  4. Altunisik, A.C., Karahasan, O.S., Genc, A.F., Okur, F.Y., Gunaydin, M., Kalkan, E. and Adanur, S. (2018), "Modal parameter identification of RC frame under undamaged, damaged, repaired and strengthened conditions", Measurment, 124, 260-276.
  5. ANSYS (2016), Swanson Analysis System, USA.
  6. Arch Dams (1968), "A review of British research and development", Proceedings of the Symposium held at the Institution of Civil Engineers, March, London, England.
  7. Balaguer, P. and Claramonte, J.A. (2011), "Characterization and control of dimensionally similar systems", J. Franklin Inst., 348, 1814-1831. https://doi.org/10.1016/j.jfranklin.2011.05.005
  8. Balawi, S., Shahid, O. and Mulla, M.A. (2015), "Similitude and scaling laws-static and dynamic behaviour beams and plates", Procedia Eng., 114, 330-337. https://doi.org/10.1016/j.proeng.2015.08.076
  9. Basbolat, E.E., Bayraktar, A., Basaga, H.B. and Turker, T. (2013), "Determination of experimental dynamic characteristics of Deriner Concrete Arch Dam", Turkey Earthquake Engineering and Seismology Conference, September, Hatay, Turkey. (in Turkish)
  10. Carpinteri, A. and Corrado, M. (2010), "Dimensional analysis approach to the plastic rotation capacity of over-reinforced concrete beams", Eng. Fract. Mech., 77, 1091-1100. https://doi.org/10.1016/j.engfracmech.2010.02.021
  11. Chen, X., Wu, S. and Zhou, J. (2015), "Large-beam tests on mechanical behavior of dam concrete under dynamic loading", J. Mater. Civil Eng., 27(10), 06015001. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001263
  12. Chen, Z., Chen, W., Li, Y. and Yuan, Y. (2016), "Shaking table test of a multi-story subway station under pulse-like ground motions", Soil Dyn. Earthq. Eng., 82, 111-122. https://doi.org/10.1016/j.soildyn.2015.12.002
  13. Chen, Z.Y. and Shen, H. (2014), "Dynamic centrifuge tests on isolation mechanism of tunnels subjected to seismic shaking", Tunnel. Underg. Space Technol., 42, 67-77. https://doi.org/10.1016/j.tust.2014.02.005
  14. Datin, P.L. and Prevatt, D.O. (2013), "Using instrumented smallscale models to study structural load paths in wood-framed buildings", Eng. Struct., 54, 47-56. https://doi.org/10.1016/j.engstruct.2013.03.039
  15. Ghosh, A. (2011), "Scaling laws", Mechanics Over Micro and Nano Scales, Springer, New York, NY.
  16. Hafeez, F. and Almaskari, F. (2015), "Experimental investigation of the scaling laws in laterally indented filament wound tubes supported with v shaped cradles", Compos. Struct., 126, 265-284. https://doi.org/10.1016/j.compstruct.2015.02.073
  17. Huang, Y. and Zhu, C.Q. (2017), "Safety assessment of antiliquefaction performance of a constructed reservoir embankment. I: Experimental assessment", J. Perform. Constr. Facil., 31(2), 04016101. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000965
  18. Jiang, D. and Shu, D. (2005), "Predication of peak acceleration of one degree of freedom structures by scaling law", J. Struct. Eng., 131(4), 582-588. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:4(582)
  19. Kalateh, F. and Koosheh, A. (2017), "Comparing of loose and strong finite element partitioned coupling methods of acoustic fluid-structure interaction: concrete dam-reservoir system", KSCE J. Civil Eng., 21(3), 807-817. https://doi.org/10.1007/s12205-016-0276-0
  20. Khiavi, M.P. (2017), "Investigation of seismic performance of concrete gravity dams using probabilistic analysis", Croatian Soc. Civil, Hsgi, Gradevinar, 69(1), 21-29.
  21. Lokke, A. and Chopra, A.K. (2017), "Direct finite element method for nonlinear analysis of semi-unbounded dam-waterfoundation rock systems", Earthq. Eng. Struct. Dyn., 46(8), 1267-1285. https://doi.org/10.1002/eqe.2855
  22. Lu, X., Zhou, B. and Lu, W. (2015), "Shaking table test and numerical analysis of a high-rise building with steel reinforce concrete column and reinforce concrete core tube", Struct. Des. Tall Spec. Build., 24, 1019-1038. https://doi.org/10.1002/tal.1224
  23. Luo, D., Hu, Y. and Li, Q. (2016), "An interfacial layer element for finite element analysis of arch dams", Eng. Struct., 128, 400-414. https://doi.org/10.1016/j.engstruct.2016.09.048
  24. Oliveira, S. and Faria, R. (2006), "Numerical simulation of collapse scenarios in reduced scale tests of arch dams", Eng. Struct., 28, 1430-1439. https://doi.org/10.1016/j.engstruct.2006.01.012
  25. Prabhu, Raja, V., Ramu, M. and Thyla, P.R. (2013), "Analytical and numerical validation of the developed structural similitude for elastic models", Ind. J. Eng. Mater. Sci., 20, 492-496.
  26. Ramu, M., Prabhu, Raja, V. and Thyla, P.R. (2013), "Establishment of structural similitude for elastic models and validation of scaling laws", KSCE J. Civil Eng., 17(1), 139-144. https://doi.org/10.1007/s12205-013-1216-x
  27. Sevim, B. (2010), "Determination of dynamic behavior of arch dams using finite element and experimental modal analysis methods", Ph.D. Dissertation, Karadeniz Technical University, Trabzon, Turkey.
  28. Sevim, B., Altunisik, A.C. and Bayraktar, A. (2012), "Experimental evaluation of crack effects on the dynamic characteristics of a prototype arch dam using ambient vibration tests", Comput. Concrete, 10(3), 277-294. https://doi.org/10.12989/cac.2012.10.3.277
  29. Sevim, B., Altunisik, A.C. and Bayraktar, A. (2013), "Structural identification of concrete arch dams by ambient vibration tests", Adv. Concrete Constr., 1(3), 227-237. https://doi.org/10.12989/acc2013.1.3.227
  30. Sevim, B., Altunisik, A.C. and Bayraktar, A. (2014), "Construction stages analyses using time dependent material properties of concrete arch dams", Comput. Concrete, 14(5), 599-612. https://doi.org/10.12989/cac.2014.14.5.599
  31. Sevim, B., Bayraktar, A. and Altunisik, A.C. (2009), "Finite element model calibration of Berke Arch Dam using operational modal testing", J. Vib. Control, 17(7), 1065-1079. https://doi.org/10.1177/1077546310377912
  32. Sevim, B., Bayraktar, A. and Altunisik, A.C. (2011), "Investigation of water length effects on the modal behavior of a prototype arch dam using operational and analytical modal analyses", Struct. Eng. Mech., 37(6), 593-615. https://doi.org/10.12989/sem.2011.37.6.593
  33. Shehadeh, M., Shennawy, Y. and El-Gamal, H. (2015), "Similitude and scaling of large structural elements: case study", Alexandria Eng. J., 54, 147-154. https://doi.org/10.1016/j.aej.2015.01.005
  34. URL-1. 15 http://eng.harran.edu.tr/moodle/moodledata/7/yesilata/01_Ders_Notlari/07ch4.pdf, 26.06.2017.
  35. Wang, B.S. and He, Z.C. (2007), "Crack detection of arch dam using statistical neural network based on the reductions of natural frequencies", J. Sound Vib., 302, 1037-1047. https://doi.org/10.1016/j.jsv.2007.01.008
  36. Wang, H. and Li, D. (2006), "Experimental study of seismic overloading of large arch dam", Earthq. Eng. Struct. Dyn., 35, 199-216. https://doi.org/10.1002/eqe.517
  37. Wang, H. and Li, D. (2007), "Experimental study of dynamic damage of an arch dam", Earthq. Eng. Struct. Dyn., 36, 347-366. https://doi.org/10.1002/eqe.637
  38. Wang, H., Wang, L., Song, Y. and Wang, J. (2016), "Influence of free water on dynamic behavior of dam concrete under biaxial compression", Constr. Build. Mater., 112, 222-231. https://doi.org/10.1016/j.conbuildmat.2016.02.090
  39. Zhongzhi, F., Shengshui, C. and Huaqiang, H. (2017), "Experimental investigations on the residual strain behavior of a rockfill material subjected to dynamic loading", J. Mater. Civil Eng., 29(5), 04016278. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001816
  40. Zhou, J., Lin, G., Zhu, T., Jefferson, A.D. and Williams, F.W. (2000), "Experimental investigation into seismic failure of high arch dams", J. Struct. Eng., ASCE, 126, 926-935. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:8(926)