Comparative dynamic investigation of cross-laminated wooden panel systems: Shaking-table tests and analysis

Abstract

Cross-laminated timber has recently gained great popularity in earthquake-prone areas for construction of residential, administrative, and other types of buildings. At the Laboratory of the Institute of Earthquake Engineering and Engineering Seismology in Skopje, comparative full-scale shaking-table tests of cross-laminated timber panel systems have been carried out as a part of the full research program on the seismic behavior of these types of wooden systems, realized by Institute of Earthquake Engineering and Engineering Seismology, Skopje, and the Faculty of Civil and Geodetic Engineering (UL FCG), University of Ljubljana. Two different specimens built of cross-laminated timber panels have been tested: specimen containing a pair of single-unit principal wall elements (Specimen 1) and specimen containing a pair of two-unit principal wall elements (Specimen 2). In this article, the results from the shaking-table tests obtained for Specimen 2 and numerically verified by using appropriate finite element method–based computational model are discussed. Reference is also made to the comparative analysis of the test results obtained for both specimens. One of the most important aspects of the research has been the estimation of the seismic energy-dissipation ability of Specimen 1 and 2, via calculation of the equivalent viscous damping using the performed experimental tests. It is generally concluded that Specimen 2 exhibits a similar rocking behavior as Specimen 1, with similar energy-dissipation ability. Both specimens have manifested slightly different dynamic properties, mostly because Specimen 2 has been designed with one anchor more compared to Specimen 1. Forced vibration tests have been used for identification of the effective stiffness on the contacts for Specimen 2. This research is expected to be a contribution toward clarification of the behavior and practical design of cross-laminated timber panel systems subjected to earthquake loading.

Keywords

cross-laminated timber equivalent viscous damping force vibration method shaking-table test

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References

Bouc

(1967) Forced vibration of mechanical systems with hysteresis. Proceedings of the Fourth Conference on Nonlinear Oscillation, Prague, Czechoslovakia, pp. 315.

Ceccotti

(2008) New technologies for construction of medium-rise buildings in seismic regions: the XLAM case. Structural Engineering International 18(2): 156–165.

Ceccotti

Follesa

Lauriola

M P

Sandhaas

(2006) SOFIE Project – Test Results on the Lateral Resistance of Cross-Laminated Wooden Panels. Proc. 1st European Conference on Earthquake Engineering and Seismology, Geneva, Switzerland, 3–8 September. European Association of Earthquake Engineering (EAEE), Bogazici Univ., Istanbul, Turkey.

Ceccotti

Follesa

(2006) Seismic Behavior of Multi-StoreyXLam Buildings. Proc. International Workshop on Earthquake Engineering on Timber Structures, Coimbra, Portugal, 9–10 November, pp. 81–95.

CEN EN 12512:2001 (2001) Timber structures: test methods—cyclic testing of joints made with mechanical fasteners (Brussels: European Committee for Standardization, 2001).

Chopra

(2012) Dynamics of Structures: Theory and Applications to Earthquake Engineering. 4th ed. Upper Saddle River, NJ: Prentice Hall, p. 137.

Dowrick

(1986) Hysteresis loops for timber structures. Bulletin of the New Zealand National Society for Earthquake Engineering 19(2): 143–152.

Dujic

Aicher

Zarnic

(2005) Investigation on in-plane loaded wooden elements—Influence of loading and boundary conditions. Otto-Graf-Journal 16: 259–272.

Dujic

Hristovski

Stojmanovska

et al . (2006) Experimental investigation of massive wooden wall panel systems subjected to seismic excitation. In: Proceedings of the 1st European conference on earthquake engineering and seismology (a joint event of the 13th ECEE & 30th General Assembly of the ESC), Geneva, 3–8 September, paper number ID 490.

10.

FELISA/3M (2017) Skopje: Institute of Earthquake Engineering and Engineering Seismology.

11.

Foliente

(1995) Hysteresis modeling of wood joints and structural systems. Journal of Structural Engineering: ASCE 121: 1013–1022.

12.

FPInnovations (2011) CLT Handbook: Cross-Laminated Timber (Special publication SP-528E, Canadian edition) (ed Gagnon

Pirvu

). Quebec, QC, Canada: FPInnovations.

13.

FPInnovations (2013) CLT Handbook: Cross-Laminated Timber (Special publication SP-529E, US edition) (ed Karacabeyli

Douglas

). Pointe-Claire, QC, Canada: FPInnovations.

14.

Gavric

Fragiacomo

Ceccotti

(2015a) Cyclic behavior of CLT wall systems: experimental tests and analytical prediction models. Journal of Structural Engineering: ASCE 141: 04015034.

15.

Gavric

Fragiacomo

Ceccotti

(2015b) Cyclic behaviour of typical metal connectors for cross-laminated (CLT) structures. Materials and Structures 48: 1841–1857.

16.

Gavric

Fragiacomo

Popovski

et al . (2014) Behaviour of cross-laminated timber panels under cyclic loads. In: Aicher

Reinhardt

Garrecht

(eds) Materials and Joints in Timber Structures, vol. 9 (RILEM book series). Dordrecht: Springer, pp. 689–702.

17.

Hristovski

Dujic

Stojmanovska

et al . (2013) Full-scale shaking-table tests of XLam panel systems and numerical verification: specimen 1. Journal of Structural Engineering: ASCE 139: 2010–2018.

18.

Khelifa

Khennane

El Ganaoui

et al . (2015) Numerical damage prediction in dowel connections of wooden structures. Materials and Structures 49: 1829–1840.

19.

Kramer

Barbosa

Sinha

(2015) Performance of steel energy dissipators connected to cross-laminated timber wall panels subjected to tension and cyclic loading. Journal of Structural Engineering: ASCE. Epub ahead of print 16 December. DOI: 10.1061/(ASCE)ST.1943-541 X.0001410.

20.

Loss

Zonta

Piazza

(2012) Analytical model to evaluate the equivalent viscous damping of timber structures with dowel-type fastener connections. In: Proceedings of the world conference on timber engineering (WCTE 2012), Auckland, New Zealand, 15–19 July.

21.

Popovski

Schneider

Schweinsteiger

(2010) Lateral load resistance of cross-laminated wood panels. In: Proceedings of the 11th world conference on timber engineering (WCTE), Trentino, 20–24 June, pp. 3394–3403. Red Hook, NY: Curran Associates, Inc.

22.

Rinaldin

Amadio

Fragiacomo

(2013) A component approach for the hysteretic behaviour of connections in cross-laminated wooden structures. Earthquake Engineering & Structural Dynamics 42: 2023–2042.

23.

Shen

Schneider

Tesfamariam

et al . (2013) Hysteresis behavior of bracket connection in cross-laminated-timber shear walls. Construction and Building Materials 48: 980–991.

24.

Van de Lindt

(2008) Energy-based similitude for shake table testing of scale woodframe structures. Journal of Earthquake Engineering 12: 281–292.

25.

Van de Lindt

Liu

Symans

et al . (2011) Seismic performance and modeling of a half-scale base-isolated wood frame building. Journal of Earthquake Engineering 15: 469–490.