Advances in concrete construction

  • 제18권4호
  • /
  • Pages.303-317
  • /
  • 2024
  • /
  • 2287-5301(pISSN)
  • /
  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Impact of vertical member shortening on the seismic performance of reinforced concrete buildings

  • Mahmoud A. El-Mandouh (Civil Engineering Department, Faculty of Engineering, Beni-Suef University) ;
  • Ahmed S. Abd El-Maula (Civil Engineering Department, Shoubra Faculty of Engineering, Benha University) ;
  • Talal O. Alshammari (Department of Civil Engineering, College of Engineering, Jouf University) ;
  • Ahmed M. Yosri (Department of Civil Engineering, College of Engineering, Jouf University) ;
  • Mohamed A. Farouk (Civil Engineering Department, Faculty of Engineering, Delta University for Science and Technology)
  • 투고 : 2024.10.26
  • 심사 : 2024.11.20
  • 발행 : 2024.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

Vertical members such as columns and shear walls undergo time-dependent deformations in multi-story buildings due to creep and shrinkage. This causes columns and shear walls to shorten unevenly, especially if their cross-sectional areas, reinforcement ratios, or loading conditions differ. Differential shortening throughout the structure may result from this over time. This can result in unexpected seismic drift, affecting the building's ability to withstand lateral displacements caused by earthquakes. This study examines the impact of vertical member shortening, caused by creep and shrinkage during construction, on the seismic performance of RC buildings. It also evaluates the suitability of the Static Equivalent Lateral Force (SELF) methods, as outlined in the IBC-2000 (US) and Euro Code 8 (Europe), for RC structures experiencing such shortening under seismic conditions. Two real earthquakes, 1940 EL-Centro and Parkfield, were analyzed across two categories of RC buildings: moment-resisting frames and those with shear walls, designed per ACI 318-19 standards and simulated via Midas Gen's finite element method. Each category included buildings of six, nine, and twelve stories. The investigation involved two scenarios: SCAT, which accounts for creep and shrinkage, and SCAN, which does not. The results indicate that in the case of moment-resisting frame buildings, the maximum column shortening resulting from SCAT exceeds that obtained from SCAN by 68-128%, while in the case of shear wall buildings, the maximum vertical member shortening increases by 40-82%. Under the 1940 EL-Centro earthquake, SCAT's maximum story drift was higher than SCAN's by 9-15% in multi-story building frames and 3-8% in shear walls. Also, the limits of the fundamental period of vibration estimated by IBC-2000 and EC-8 are conservative for both cases of SCAN and SCAT. Additionally, the study revealed that IBC-2000's base shear estimations could be non-conservative for the 1940 EL-Centro earthquake, while EC-8's predictions were generally conservative for both SCAT and SCAN scenarios.

키워드

과제정보

This work was funded by the Deanship of Graduate Studies and Scientific Research at Jouf University under grant No. (DGSSR-2024-02-02177).

참고문헌

  1. ACI 318-19, Committee ACI (2019), Building code requirements for structural concrete (ACI 318-19) and commentary (ACI 318R-19), Farmington Hills: American Concrete Institute.
  2. Ali, B., Rotimi, A., Tovi, S., Goodchild, C. and Rizzuto, J. (2017), "Evaluation of the influence of creep and shrinkage determinants on column shortening in mid-rise buildings", Adv. Concrete Constr., Int. J., 5(2), 155-171. https://doi.org/10.12989/acc.2017.5.2.155
  3. Amin, S.R. and Mahajan, S.K. (2015), "Analysis of multi-storied RCC building for construction sequence loading", Int. J. Mod. Trend Eng. Res., 2-4.
  4. Arvind, J.S. and Santhi, M.H. (2015), "Effect of column shortening on the behavior of tubular structures", Indian J. Sci. Technol., 8(36). https://doi.org/10.17485/ijst/2015/v8i36/87533
  5. Blanc, C.M., Sánchez, A.O. and Navarro, I.F. (2021), "Analytical characterisation of axial shortening due to creep of reinforced concrete columns in tall buildings", Eng. Struct., 228, p. 111584. https://doi.org/10.1016/j.engstruct.2020.111584
  6. CEB-FIP Model (1993), Design code; Bulletin d'Information CEB Lausanne, Switzerland.
  7. Correia, R. and Lobo, P.S. (2017), "Simplified assessment of the effects of columns shortening on the response of tall concrete buildings", Procedia Struct. Integr., 5, 179-186. https://doi.org/10.1016/j.prostr.2017.07.095
  8. Das, G.G. and Praseeda, K.I. (2016), "Comparison of conventional and construction stage analysis of a RCC building", Int. J. Sci. Technol. Eng., 3(3), 50-57.
  9. Desai, N.M. and Vasanwala, S. (2023), "Influence of time period and derivation of critical storey limit for RC frame buildings using construction sequence method of analysis", Res. Eng. Struct. Mater., 9(1), 195-208. http://dx.doi.org/10.17515/resm2022.414st0309
  10. EC-8, Code, P. (2005), Eurocode 8: Design of structures for earthquake resistance-part 1: general rules, seismic actions and rules for buildings; Brussels: European Committee for Standardization.
  11. Elansary, A.A., Metwally, M.I. and El-Attar, A. (2021), "Staged construction analysis of reinforced concrete buildings with different lateral load resisting systems", Eng. Struct., 242, p. 112535. https://doi.org/10.1016/j.engstruct.2021.112535
  12. ETABS, CSI. (1999), Extended 3D analysis of building system, Nonlinear Version 8.5. 4, User's Manual; Computer and Structure, Inc., Berkeley, CA, USA.
  13. Fintel, M., Ghosh, S.K. and Iyengar, H. (1987), "Column shortening in tall buildings-Prediction and compensation", Publ. EB108 D, Portland Cement Association, Skokie, 3, 1-34.
  14. Fragomeni, S., Whaikawa, H., Boonlualoah, S. and Loo, Y.C. (2014), "Axial shortening in an 80-storey concrete building", In: The 23rd Australasian Conference on the mechanics of structures and materials (ACMSM23), pp. 1231-1236.
  15. IBC-2000 (2000), International Code Council; International Building Code, Inc., Falls Church, USA.
  16. Jayasinghe, M.T.R. and Jayasena, W.M.V.P.K. (2004), "Effects of axial shortening of columns on design and construction of tall reinforced concrete buildings", Practice Period. Struct. Des. Constr., 9(2), 70-78. https://doi.org/10.1061/(ASCE)1084-0680(2004)9:2(70)
  17. Jahromi, A.B., Rotimi, A., Tovi, S., Goodchild, C. and Rizzuto, J. (2017), "Evaluation of the influence of creep and shrinkage determinants on column shortening in mid-rise buildings", Adv. Concrete Constr., Int. J., 5(2), 155-171. https://doi.org/10.12989/acc.2017.5.2.155
  18. Kim G.C. and Kim, J.Y. (2022), "The Effects of differential axial Shortening on RC high-rise buildings with outrigger or mega structure systems", J. Computat. Struct. Eng. Inst. Korea, 35(1), 35-44. https://doi.org/10.7734/COSEIK.2022.35.1.35
  19. Midas Gen (2021), Analysis for civil Structures, 2012: 400. https://www.midasstructure.com/en/product/overview/gen
  20. Moragaspitiya, P., Thambiratnam, D., Perera, N. and Chan, T. (2010), "A numerical method to quantify differential axial shortening in concrete buildings", Eng. Struct., 32(8), 2310-2317. https://doi.org/10.1016/j.engstruct.2010.04.006
  21. Morker, N.S. and Patel, V.R. (2022), "Effect of Axial Shortening of Column in Building with and without Soft Story", IJARSCT, 2(1), 49-53. https://doi.org/10.48175/IJARSCT-5898
  22. Naxane, K.Y., Vairagade, M.L. and Bhaskar, M.G.B. (2017), "Construction sequence analysis of multistoried RCC building", Int. Res. J. Eng. Technol. (IRJET), 4(7), 785-790.
  23. Pan, L.B., Liu, P.C. and Bakoss, S.L. (1993), "Long-term shortening of concrete columns in tall buildings", J. Struct. Eng., 119(7), 2258-2262. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:7(2258)
  24. Pathan, K.M., Ali, S.W., Khan, H.T., Mirza, M.S., Waseem, M. and Zubair, S. (2014), "Construction stage analysis of RCC frames", Int. J. Eng. Tech. Res., 2, 54-58.
  25. Paulay, T., Carr, A.J. and Tompkins, D.N. (1980), "Response of ductile reinforced concrete frames located in Zone C", Bull. New Zealand Soc. Earthq. Eng., 13(3), 209-225. https://doi.org/10.5459/bnzsee.13.3.209-225
  26. Pranay, R., Sreevallli, I.Y. and Thota, S.K. (2015), "Study and comparison of construction sequence analysis with conventional lumped analysis using ETABS", Civil Eng. Syst. Sustain. Innov., 220-228.
  27. Raksha, H.L., Karthik, S. and Madhukeshwara, J.E. (2016), "Influence of axial shortening of vertical member in the tall structures", Int. J. Res. Eng. Technol., 5(9), 322-329. https://doi.org/10.15623/ijret.2016.0509049
  28. Ruiz, R., Todisco, L., Pazos, A. and Corres, H. (2021), "A comparative study on the differential axial shortening in high-rise buildings", Struct. Concrete, 22(6), 3336-3352. https://doi.org/10.1002/suco.202100053
  29. Shirhatti, T.G. and Vanakudre, S.B. (2015), "The effects of P-delta and construction sequential analysis of RCC and steel building with respect to linear static analysis", Int. Res. J. Eng. Technol., 2(04), 501-505.
  30. Simha, V. and Sarangapani, G. (2015), "Parametric studies on differential shortening of vertical members in high-rise RC building", Int. J. Res. Eng. Appl. Sci., 5, 93-106.
  31. Thorenfeldt, E., Tomaszewicz, A. and Jensen, J.J. (1987), "Mechanical properties of high strength concrete and application to design", In: Symposium Proceedings, Utilization of High-Strength Concrete, Stavanger, Norway, pp. 149-159.
  32. Türker, T. and Bayraktar, A. (2017), "Vibration based modal testing of a scaled reinforced concrete building for construction stages", Bull. Earthq. Eng., 15, 3399-3416. https://doi.org/10.1007/s10518-15-9852-9
  33. Vafai, A., Ghabdian, M., Estekanchi, H.E. and Desai, C.S. (2009), "Calculation of creep and shrinkage in tall concrete buildings using nonlinear staged construction analysis", Asian J. Civil Eng. (Building and Housing), 10(4), 409-426.
  34. Yousef, A.M., El-Metwally, S.E. and El-Mandouh, M.A. (2014), "Seismic performance of HSC dual systems irregular in elevation", Ain Shams Eng. J., 5(2), 321-332. https://doi.org/10.1016/j.asej.2013.11.001
  35. Zou, D., Du, C., Liu, T., Teng, J. and Cheng, H. (2019), "Time-dependent deformations of concrete columns under different construction load histories", Adv. Struct. Eng., 22(8), 1845-1854. https://doi.org/10.1177/1369433219828133