Structural Engineering and Mechanics

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Determination of collapse safety of shear wall-frame structures

  • Cengiz, Emel Yukselis (Directorate of Construction Analysis and Development, Istanbul Metropolitan Municipality) ;
  • Saygun, Ahmet Isin (Department of Civil Engineering, Istanbul Technical University)
  • Received : 2006.03.31
  • Accepted : 2007.02.23
  • Published : 2007.09.30
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Abstract

A new finite shear wall element model and a method for calculation of 3D multi-storied only shear walled or shear walled - framed structures using finite shear wall elements assumed ideal elasto - plastic material are developed. The collapse load of the system subjected to factored constant gravity loads and proportionally increasing lateral loads is calculated with a method of load increments. The shape functions over the element are determined as a cubic variation along the story height and a linear variation in horizontal direction because of the rigid behavior of the floor slab. In case shear walls are chosen as only one element in every floor, correct solutions are obtained by using this developed element. Because of the rigid behavior of the floor slabs, the number of unknowns are reduced substantially. While in framed structures, classical plastic hinge hypothesis is used, in nodes of shear wall elements when vertical deformation parameter is exceeded ${\varepsilon}_e$, this node is accepted as a plastic node. While the system is calculated with matrix displacement method, for determination of collapse safety, plastic displacements and plastic deformations are taken as additional unknowns. Rows and columns are added to the system stiffness matrix for additional unknowns.

Keywords

References

  1. Balkaya, C. and Kalkan, E. (2004), 'Three-dimensional effects on openings of laterally loaded pierced shear walls', J. Struct. Eng., 130(10), 1506-1514 https://doi.org/10.1061/(ASCE)0733-9445(2004)130:10(1506)
  2. Cengiz, E.Y. (2004), 'A new finite wall element model and a method of load increments for determination of collapse safety of multi story shear walled and framed structures', Doctorate thesis, ITU Institute of Science and Technology, Istanbul
  3. Chai, W. and Guh, T.J. (1999), 'Performance-based design of concrete shear wall building', SEAOC Convention, Santa Barbara, CA, September
  4. Cakiroglu, A., Ozden, E. ve Ozmen, G. (1992), Yapi Sistemlerinin Hesabi Icin Matris Metodlari ve Elektronik Hesap Makinasi Programlari, Cilt 1-2, ITU Insaat Fakultesi Matbaasi, Istanbul
  5. Cakiroglu, A ve Ozer, E. (1980), Malzeme ve Geometri Degisimi Bakimindan Lineer Olmayan Sistemler, Matbaa Teknisyenleri Basimevi, Istanbul
  6. Girgin, K. (1996), 'Method of load increments for the determination of second-order limit load and collapse safety of reinforced concrete framed structures', Doctorate thesis, ITU Institute of Science and Technology, istanbul
  7. Irtem, E. (1991), 'Determination or. second-order limit load of framed space structures by a method of load increments', Doctorate thesis, ITU Institute of Science and Technology, Istanbul
  8. Karabinis, A.I. and Kiousis, P.D. (2001), 'Plasticity model for reinforced concrete elements subjected to overloads', J. Struct. Eng., 127, 1251-1256 https://doi.org/10.1061/(ASCE)0733-9445(2001)127:11(1251)
  9. Kwak, H.G. and Kim, D.Y. (2001), 'Nonlinear analysis of RC shear walls considering tension-stiffening effect', Comput. Struct., 79, 499-517 https://doi.org/10.1016/S0045-7949(00)00157-7
  10. Kwan, A.K.H. (1993), 'Mixed finite element method for analysis of coupled shear/core walls', J. Struct. Eng., 119(5), 1388-1401 https://doi.org/10.1061/(ASCE)0733-9445(1993)119:5(1388)
  11. Lefas, I.D. and Kotsovos, M.D. (1990), 'Nlfe analysis of RC structures and design implications', J. Struct. Eng., 116, 146-164 https://doi.org/10.1061/(ASCE)0733-9445(1990)116:1(146)
  12. Mo, Y.L. and Perng, S.F. (2003), 'Analytical model for hybrid RC frame-steel wall systems', Struct. Eng. Mech., 16(2),127-139 https://doi.org/10.12989/sem.2003.16.2.127
  13. Ozer, E. (1987), 'Determination of second-order limit load by a method of load increments', Bulletin of Tecnical University of Istanbul, 40(4), 815-836
  14. Pala, S. ve Saygun, A. (1992), 'A rectangular plane stress element with 12 degrees of freedom', Bulletin of the Tecnical University of Istanbul, 45, 1-3
  15. Przemieniecki, J.S. (1968), Theory of Matrix Structural Analysis, Mcgraw-Hill, Book Company
  16. Saygun, A.I. (1979), 'Egri Eksenli, Kutu Kesitli Kirislerin Hesabi Icin Bir Sonlu Elemanlar Yontemi', Docentlik Tezi, ITU Institute of Science and Technology, Istanbul
  17. Taskin, B. (2001), 'Non-linear stochastic of 3D reinforced concrete shear wall-frame structures under seismic excitation', Doctorate thesis, ITU Institute of Science and Technology, Istanbul
  18. Xinzheng, L. and Jianjing, J. (2001), 'Elastic-plastic analysis of RC shear wall using discrete element method', Proc. Int. Conf. on Enhancement and Promotion of Computational Methods in Engineering and Science, Shanghai, Jul
  19. Xucheng, W. and Xiaoning, W. (1995), 'Simplified method for elasto-plastic finite element analysis of hardening materials', Comput. Struct., 55, 703-708 https://doi.org/10.1016/0045-7949(94)00425-3
  20. Zienkiewicz, O.C. (1971), The Finite Element Method In Engineering Science, Mcgraw-Hill, London
  21. Zienkiewicz, O.C., Valliapan, S. and King, I.P. (1969), 'Elasto-plastic solutions of engineering problems 'Initial Stress', finite element approach', Int. J. Numer. Meth. Eng., 1, 75-100 https://doi.org/10.1002/nme.1620010107

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