Investigating the Effect of Bending on the Seismic Performance of Hollow-Core Flooring
Source abstract
Abstract
Abstract Even if precast pre-stressed hollow-core (PPHC) slabs are usually designed as simply supported elements, continuity with the supporting beam may exist when constructed together with a reinforced concrete topping and continuity reinforcing bars. During an earthquake (and possibly other lateral load), this continuity may result in bending moments being induced close to the supports as the buildings sway laterally. The response of precast floors to earthquake-induced demands has been addressed by past research. However, further investigation is required to improve understanding of several aspects of precast floor behaviour either revealed or emphasized by recent earthquakes in New Zealand. This paper proposes a mechanics-based modelling approach for the analysis of PPHC slab-to-beam seating connections. The model has been calibrated against existing test data to predict the failure of a PPHC slab under negative bending moments. The numerical outcomes allow comparison of the moment–drift response, principal tensile stresses, and crack progression during loading. The developed modelling approach will allow future studies to exhaustively investigate all aspects of precast floor behaviour by varying the properties and geometry of the PPHC seating connection.
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Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Structural Load-Bearing Analysis · Structural Engineering and Vibration Analysis
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References (23)
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1. Brooke, N., Elwood, K., Bull, D., Liu, A., Henry, R., Sullivan, T., Hogan, L., & del Rey Castillo, E. (2019). ReCast Floors-Seismic assessment and improvement of existing precast concrete floors. SESOC Journal, 32(1), 50–59.
2. Brooks, M. D., Gerstle, K. H., & Logan, D. R. (1988). Effect of initial strand slip on the strength of hollow-core slabs. PCI Journal, 33(1), 90–111.10.15554/pcij.01011988.90.111 ↗
3. Bueker, F., Elwood, K. J., Bull, D., & Henry, R. S. (2020). Testing of Retrofit Solutions for Vulnerable Hollow-core Floor Connection Details. The 8th International Conference on Advances in Experimental Structural Engineering (8AESE).
4. Cornelissen, H. A. W., Hordijk, D. A., & Reinhardt, H. W. (1986). Experimental determination of crack softening characteristics of normalweight and lightweight. Heron, 31(2), 45.
5. Corney, S. R., Ingham, J. M., & Henry, R. S. (2018). Seismic testing of support connections in deep hollow-core floor units. ACI Structural Journal, 115(3), 735–748. https://doi.org/10.14359/5170206210.14359/51702062 ↗
6. Corney, S. R., Puranam, A. Y., Elwood, K. J., Henry, R. S., & Bull, D. (2021). Seismic performance of precast hollow-core floors: Part 1—experimental data. ACI Structural Journal, 118, 49–63. https://doi.org/10.14359/5173282110.14359/51732821 ↗
7. Fenwick, R., Bull, D., & Gardiner, D. (2010). Assessment of hollow-core floors for seismic performance (Vols. 2010-02; 2). Department of Civil and Natural Resources Engineering, University of Canterbury
8. Hordijk, D. A. (1992). Tensile and tensile fatigue behaviour of concrete; experiments, modelling and analyses. Heron, 37(1), 1–79.
9. Jensen, J. P. (2007). The seismic behaviour of existing hollowcore seating connections pre and post retrofit: a thesis submitted in partial fulfilment of the requirements for the degree of Master of engineering. In Civil and Natural Resources engineering: Vol. Doctoral D. University of Canterbury.
10. Matthews, J. (2004). Hollow-core floor slab performance following a severe earthquake: a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy. In Civil and Natural Resources Engineering: Vol. Doctoral D. University of Canterbury.
11. MIDAS Information Technology. (2016). Midas FEA: Advanced Nonlinear and Detail Analysis System (v1.1). https://www.cspfea.net/prodotti/midas-fea-nx/. https://globalsupport.midasuser.com/helpdesk/KB/View/32636105-midas-fea-nx-manuals-and-tutorials. Accessed Jan 2019.
12. NZS3101. (2006). Concrete structures standard. Part 1: The design of concrete structures. In New Zeland Standards Executive
13. Pajari, M. (2004a). Pure torsion tests on single hollow core slabs
14. Pajari, M. (2004b). Shear-torsion interaction tests on single hollow core slabs
15. Puranam, A., Filippova, O., Pastor-Paz, J., Stephens, M., Elwood, K. J., Ismail, N., Noy, I., & Opabola, E. (2019). A detailed inventory of medium-to high-rise buildings in Wellington’s central business district. Bulletin of the New Zealand Society for Earthquake Engineering, 52(4), 172–192. https://doi.org/10.5459/BNZSEE.52.4.172-19210.5459/BNZSEE.52.4.172-192 ↗
16. Sarkis, A. I., Bueker, F., Sullivan, T. J., Elwood, K. J., Brunesi, E., & Hogan, L. (2022a). Aspects affecting the nonlinear behavior of precast pre-stressed hollow-core units failing in shear. Structural Concrete. https://doi.org/10.1002/suco.20210057910.1002/suco.202100579 ↗
17. Sarkis, A. I., Sullivan, T. J., Brunesi, E., & Nascimbene, R. (2022b). Critical modelling criteria for precast pre-stressed hollow-core slabs. Journal of Building Engineering, 54, 104545. https://doi.org/10.1016/j.jobe.2022.10454510.1016/j.jobe.2022.104545 ↗
18. Selby, R. G., & Vecchio, F. J. (1993). 3D constitutive relations for reinforced concrete. Tech, Rep. 93-02, Department of Civil Engineering, Toronto, Canada
19. Thorenfeldt, E. (1987). Mechanical properties of high-strength concrete and applications in design. Symposium Proceedings, Utilization of High-Strength Concrete, Norway, 1987
20. Ueda, T., & Stitmannaithum, B. (1991). Shear strength of precast prestressed hollow slabs with concrete topping. Structural Journal, 88(4), 402–410.
21. Vecchio, F. J., & Collins, M. P. (1986). The modified compression-field theory for reinforced concrete elements subjected to shear. ACI Journal, 83(2), 219–231.
22. Woods, L. J. (2008). The significance of negative bending moments in the seismic performance of hollow-core flooring: Vol. Dissertation. University of Canterbury
23. Yang, L. (1994). Design of prestressed hollow core slabs with reference to web shear failure. Journal of Structural Engineering, 120(9), 2675–2696.10.1061/(ASCE)0733-9445(1994)120:9(2675) ↗