Research programme on seismic performance of reinforced concrete walls

Key recommendations

  • Alex Shegay Tohoku University, Sendai, Japan
  • Farhad Dashti University of Canterbury, Christchurch
  • Lucas Hogan Dept. of Civil and Environmental Engineering, University of Auckland, Auckland
  • Yiqiu Lu Dept. of Civil and Environmental Engineering, University of Auckland, Auckland
  • Arsalan Niroomandi WSP Opus, Christchurch
  • Pouya Seifi WSP Opus, Hamilton
  • Tongyue Zhang Blue Barn Consulting, Auckland
  • Rajesh Dhakal University of Canterbury, Christchurch
  • Kenneth Elwood Dept. of Civil and Environmental Engineering, University of Auckland, Auckland
  • Richard Henry Dept. of Civil and Environmental Engineering, University of Auckland, Auckland
  • Stefano Pampanin Department of Structural and Geotechnical Engineering, Sapienza University of Rome

Abstract

A wide range of reinforced concrete (RC) wall performance was observed following the 2010/2011 Canterbury earthquakes, with most walls performing as expected, but some exhibiting undesirable and unexpected damage and failure characteristics. A comprehensive research programme, funded by the Building Performance Branch of the New Zealand Ministry of Business, Innovation and Employment, and involving both numerical and experimental studies, was developed to investigate the unexpected damage observed in the earthquakes and provide recommendations for the design and assessment procedures for RC walls. In particular, the studies focused on the performance of lightly reinforced walls; precast walls and connections; ductile walls; walls subjected to bi-directional loading; and walls prone to out-of-plane instability. This paper summarises each research programme and provides practical recommendations for the design and assessment of RC walls based on key findings, including recommended changes to NZS 3101 and the NZ Seismic Assessment Guidelines.

References

Sritharan S, Beyer K, Henry RS, Chai YH, Kowalsky M and Bull D (2014). "Understanding poor seismic performance of concrete walls and design implications". Earthquake Spectra, 30(1): 307–334.

Kam WY, Pampanin S and Elwood K (2011). "Seismic performance of reinforced concrete buildings in the 22 February Christchurch (Lyttelton) earthquake". Bulletin of the New Zealand National Society for Earthquake Engineering, 44(4): 239–278.

Elwood KJ (2013). "Performance of concrete buildings in the 22 February 2011 Christchurch earthquake and implications for Canadian codes". Canadian Journal of Civil Engineering, 40(8): 759–776.

Canterbury Earthquakes Royal Commission (CERC) (2012). "Volume 2: The Performance of Christchurch CBD Buildings". Canterbury Earthquakes Royal Commission, Ministry of Building, Innovation and Employment. Wellington, New Zealand.

Standards Association of New Zealand (1982). "NZS 3101:1982: Part 1: Code of Practice for the Design of Concrete Structures". Standards New Zealand, Wellington, New Zealand.

Standards New Zealand (1999). "NZS 3101:1995: Concrete Structures Standard Part 1- The Design of Concrete Structures (Amendment No. 2)". Standards New Zealand, Wellington, New Zealand.

Standards New Zealand (2008). "NZS 3101:2006: Concrete Structures Standard Part 1 - The Design of Concrete Structures (Amendment No. 2)". Standards New Zealand, Wellington, New Zealand.

Structural Engineering Society New Zealand (SESOC) (2013). "Interim Design Guidance: Design of Conventional Structural Systems Following the Canterbury Earthquakes". Wellington, New Zealand.

Canterbury Earthquakes Royal Commission (CERC) (2012). "Volume 1: Summary and Recommendations in Volumes 1-3. Seismicity, Soils and the Seismic Design of Buildings". Canterbury Earthquakes Royal Commission. Ministry of Building, Innovation and Employment. Wellington, New Zealand.

New Zealand Society for Earthquake Engineering (NZSEE) (2017). "The Seismic Assessment of Existing Buildings: Technical Guidelines for Engineering Assessment. Part C5 – Concrete Buildings". Joint Publication of NZSEE, SESOC, NZGS, MBIE, and EQC, Wellington, New Zealand.

Shegay AV, Motter CJ, Elwood KJ, Henry RS, Lehman DE and Lowes LN (2018). "Impact of axial load on the seismic response of rectangular walls". Journal of Structural Engineering, 144(8): 1–32.

Shegay AV (2019). "Seismic Performance of Reinforced Concrete Walls Designed For Ductility". PhD Thesis, University of Auckland.

Dashti F, Dhakal RP and Pampanin S (2018). "Blind prediction of in-plane and out-of-plane responses for a thin singly reinforced concrete flanged wall specimen". Bulletin of Earthquake Engineering, 16(1): 427–458.

Dashti F, Dhakal RP and Pampanin S (2017). "Tests on slender ductile structural walls designed according to New Zealand Standard". Bulletin of the New Zealand Society for Earthquake Engineering, 50(4): 504–516.

Dashti F, Dhakal RP and Pampanin S (2018). "Validation of a numerical model for prediction of out-of-plane instability in ductile structural walls under concentric in-plane cyclic loading". Journal of Structural Engineering, 144(6): 04018039-1-04018039–22.

Shegay AV, Motter CJ, Elwood KJ and Henry RS (2019). "Deformation capacity limits for reinforced concrete walls". Earthquake Spectra, 35(3): 1189–1212.

Dashti F, Tripathi M, Dhakal RP and Pampanin S (2020). "A parametric study on out-of-plane instability of doubly reinforced structural walls. Part II: Experimental investigation". Bulletin of Earthquake Engineering (Accepted for Publication).

Dashti F, Dhakal RP, and Pampanin S (2020). "A parametric study on out-of-plane instability of doubly reinforced structural walls. Part I: FEM predictions". Bulletin of Earthquake Engineering, https://doi.org/10.1007/s10518-020-00828-w.

Dashti F, Dhakal RP and Pampanin S (2019). "A parametric investigation on applicability of the curved shell finite element model to nonlinear response prediction of planar RC walls". Bulletin of Earthquake Engineering, 17(12): 6515–6546.

Dashti F, Dhakal RP and Pampanin S (2018). "Local vs global instability of ductile structural walls". New Zealand Conference on Earthquke Engineering, 13-15 April, Auckland, New Zealand.

Dashti F, Dhakal RP and Pampanin S (2020). "Out-of-plane response of in-plane-loaded ductile structural walls: State-of-the-art and classification of the observed mechanisms". Journal of Earthquake Engineering, DOI: 10.1080/13632469.2020. 1713928.

Dashti F, Dhakal RP and Pampanin S (2017). "Evaluation of New Zealand code requirements related to instability failure of structural walls". New Zealand Conference on Earthquake Engineering, 27-29 April, Wellington, New Zealand.

Shegay AV, Zhang T, Elwood KJ and Henry RS (2018). "Deformation capacity of concrete walls: research findings for both old and new design practice". The Concrete NZ Conference, 11-13 October, Hamilton, New Zealand.

Dashti F, Dhakal RP and Pampanin S (2014). "Simulation of out-of-plane instability in rectangular RC structural walls". Second European Conference on Earthquake Engineering and Seismology, 25-29 August, Istanbul, Turkey, p. 13.

Niroomandi A, Pampanin S, Dhakal RP and Ashtiani MS (2018). "Experimental study on slender rectangular RC walls under bi-directional loading". Eleventh U.S. National Conference on Earthquake Engineering, 25-29 June, 2018, Los Angeles, California.

Niroomandi A (2018). "Seismic Behaviour of Rectangular Reinforced Concrete Walls under Bi-Directional Loading". PhD Thesis, University of Canterbury.

Niroomandi A, Pampanin S, Dhakal RP, Ashtiani MS and De La Torre C (2018). "Rectangular RC walls under bi-directional loading: recent experimental and numerical findings". The Concrete NZ Conference 2018, 11-13 October, Hamilton, New Zealand.

Lu Y and Henry RS (2016). "Numerical modelling of reinforced concrete walls with minimum vertical reinforcement". Engineering Structures, 143: 1689–1699.

Niroomandi A, Ashtiani MS, Pampanin S and Dhakal RP (2017). "Numerical investigations on rectangular squat renforced concrete walls under bi-directional loading". Proceedings of the 16th World Conference on Earthquake Engineering, 6-13 January, 2017, Santiago, Chile.

Lu Y and Henry RS (2018). "Comparison of minimum vertical reinforcement requirements for reinforced concrete walls". ACI Structural Journal, 115(3): 673–687.

Lu Y (2017). "Seismic Design of Lightly Reinforced Concrete Walls", PhD Thesis, University of Auckland.

Lu Y, Gultom RJ, Ma QQ and Henry RS (2018). "Experimental validation of minimum vertical reinforcement requirements for ductile concrete walls". ACI Structural Journal, 115(4): 1115–1130.

Lu Y and Henry RS (2017). "Minimum vertical reinforcement in RC walls: theoretical requirements for low and high ductility demands". Bulletin of the New Zealand Society for Earthquake Engineering, 50(4): 471–481.

Hogan L, Henry RS and Ingham MJ (2018). "Performance of panel-to-foundation connections in low-rise precast concrete buildings". Journal of the Structural Engineering Society of New Zealand Inc, 31(1): 26–36.

Zhang T, Elwood KJ and Henry RS (2018). "Testing of singly reinforced concrete walls used in existing buildings". Proceedings of New Zealand Society for Earthquake Engineering Conference 2018, 12-15 April, 2018, Auckland, New Zealand, pp. 1–8.

Seifi P, Henry RS and Ingham JM (2019). "In-plane cyclic testing of precast concrete wall panels with grouted metal duct base connections". Engineering Structures, 184: 85–98.

Seifi P, Henry RS and Ingham JM (2017). "In-plane testing of precast concrete wall panels with grouted sleeve". Proceedings of New Zealand Society for Earthquake Engineering Conference, Wellington, New Zealand.

Lu Y, Henry RS, Gultom R and Ma QT (2017). "Cyclic testing of reinforced concrete walls with distributed minimum vertical reinforcement". Journal of Structural Engineering, 143(5): 04016225-1-04016225–17.

Dashti F, Dhakal RP and Pampanin S (2017). "Numerical modeling of rectangular reinforced concrete structural walls". Journal of Structural Engineering, 143(6): 1–14.

Dashti F (2017). "Out-of-Plane Instability of Rectangular Reinforced Concrete Walls Under in-Plane Loading". PhD Thesis, University of Canterbury, Christchurch, New Zealand.

Dashti F, Dhakal RP and Pampanin S (2018). "Evolution of out-of-plane deformation and subsequent instability in rectangular RC walls under in-plane cyclic loading: Experimental observation". Earthquake Engineering and Structural Dynamics, 47(15): 2944–2964.

Wilson A and Lewis C (2011). "Novotel Cathedral Square: Structural Damage Report following 22/02/11 Earthquake and Subsequent Aftershocks". Lewis Bradford Consulting Engineers. Project No. 110170.

Pampanin S, Weng KY, Akguzel U, Tasligedik AS and Quintana-Gallo P (2012). "Seismic Performance of Reinforced Concrete Buildings in the Christchurch Central Business District in 22 February 2011 Earthquake. Part II : Damage Observation". National Hazards Research Platform Report, 629pp.

Pampanin S, Weng KY, Akguzel U, Tasligedik AS and Quintana-Gallo P (2012). "Seismic Performance of Reinforced Concrete Buildings in the Christchurch Central Business District. Part I : Overview". National Hazards Research Platform Report, 104pp.

Beca Carter Hollings & Ferner Ltd (2011). "Investigation into the Collapse of the Pyne Gould Corporation Building on 22nd February 2011". Report for the Department of Building and Housing, 46pp.

Standards New Zealand (2017). "NZS 3101:2006: Concrete Structures Standard Part 1- The Design of Concrete Structures (Amendment No. 3)". Standards New Zealand, Wellington, New Zealand.

Deng M, Liang X and Zhang S (2009). "Experimental study on ductility of high performance concrete shear walls". Journal of Building Structures, (S1): 139–143.

Whitman ZJ (2015). "Investigation of Seismic Failure Modes in Flexural Concrete Walls Using Finite Element Analysis". MSc Thesis, University of Washington.

Paulay T and Priestley MJN (1993). "Stability of ductile structural walls". ACI Structural Journal, 90(4): 385–392.

Chai YH and Elayer DT (1999). "Lateral stability of reinforced concrete columns under axial reversed cyclic tension and compression". ACI Structural Journal, 95(5): 780–789.

Rosso A, Almeida J and Beyer K (2016). "Stability of thin reinforced cocnrete walls under cyclic loads: state-of-the-art and new experimental findings". Bulletin of Earthquake Engineering, 14(2): 455–484.

Johnson BM (2010). "Anchorage Detailing Effects on Lateral Deformation Components of R/C Shear Walls". ME Thesis, University of Minnesota.

Oesterle RG, Fiorato AE, Johal LS, Carpenter JE, Russell HG and Corley WG (1976). "Earthquake Resistant Structural Walls - Tests of Isolated Walls". Washington D.C.: PCA-R/D-SER-1571, National Science Foundation.

New Zealand Society for Earthquake Engineering (NZSEE) (2018). "Technical Proposal to Revise the Engineering Assessment Guidelines". NZSEE.

Crowe SE (2018). "Seismic Performance of Older Reinforced Concrete Walls". ME Thesis, University of Auckland.

Published
2020-06-01
How to Cite
Shegay, A., Dashti, F., Hogan, L., Lu, Y., Niroomandi, A., Seifi, P., Zhang, T., Dhakal, R., Elwood, K., Henry, R., & Pampanin, S. (2020). Research programme on seismic performance of reinforced concrete walls. Bulletin of the New Zealand Society for Earthquake Engineering, 53(2), 54-69. https://doi.org/10.5459/bnzsee.53.2.54-69
Section
Articles