Study of Laminated Veneer Lumber (LVL) Sengon to Concrete Joint Using Two-Dimensional Numerical Simulation

https://doi.org/10.22146/jcef.47694

Urwatul Wusqo(1), Ali Awaludin(2*), Angga Fajar Setiawan(3), Inggar Septhia Irawati(4)

(1) Civil and Environmental Engineering Department, Universitas Gadjah Mada, INDONESIA
(2) Civil and Environmental Engineering Department, Universitas Gadjah Mada, INDONESIA
(3) Civil and Environmental Engineering Department, Universitas Gadjah Mada, INDONESIA
(4) Civil and Environmental Engineering Department, Universitas Gadjah Mada, INDONESIA
(*) Corresponding Author

Abstract


The connection system is a critical part of Timber – Concrete Composite (TCC) floor structures. The behaviour of the connection needs to be known to predict the behaviour of composite structure accurately. Screws are one kind of connector that mostly used in the composite structure due to its installation ease and high withdrawal strength. This study carried out a two-dimensional numerical simulation to examine the behaviour of LVL Sengon-concrete joint using OpenSees software. The lag screw used to connect LVL Sengon and concrete. In this simulation, the screw was assumed as a beam with hinges element that supported by a set of springs representing the strength of LVL Sengon and concrete. Some input parameters for this simulation were obtained from the material test and previous research. The effect of secondary axial force was considered into the load-displacement curve resulted from the numerical simulation.  This study performed several simulations towards the variation of the screw diameter, penetration depth, and concrete compressive strength. The capacity of the connections resulted from the numerical simulation were overestimates the manual calculation using EYM theory and NDS 2018 equations. The capacity of the connection increased about 146% to 284% due to the addition of secondary axial forces. In addition, this simulation can adequately predict the shear force, bending moment, and deformation of the screw. There is a plastic hinge formed in the screw after the screw being deformed a quite large.  It shows the same yield mode with the manual calculation using EYM theory and NDS 2018 equations. This simulation also can show the contribution of each spring elements to resist the load until its ultimate strength.

Keywords


LVL Sengon; Secondary axial force; Timber to the concrete joint; Numerical simulation; Opensees

Full Text:

PDF


References

ASTM, 1999. ASTM D1037-Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials. West Conshohocken: American Society of Testing and Material.

ASTM, 2013. ASTM E8M Standard Test Methods of Tension Testing of Metallic Materials. West Conshohocken: American Society of Testing and Material.

Awaludin, A., 2005. Dasar-dasar Perencanaan Sambungan Kayu. Yogyakarta: Biro Penerbit Keluarga Mahasiswa Teknik Sipil UGM. (In Indonesia)

Awaludin, A. et al., 2018. Laminated Veneer Lumber (LVL) Sengon : An Innovative Sustainable Building Material in Indonesia. International Journal of Integrated Engineering , 10(1), pp. 17-22.

AWC, 2017. National Design Specification for Wood Construction. 2018 ed. Leesburg: American Wood Council.

D.Yeoh, M. Fragiacomo, B.Deam, 2011. Experimental Behaviour of LVL-Concrete Composite Floor Beams at Strength Limit State. Engineering Structure, Volume 33, pp. 2697-2707.

Dias, A. M. P. G. et al., 2015. Statistical Analysis of Timber–Concrete Connections – Mechanical Properties. Computers and Structure 155, pp. 67-84.

Du, K., Sun, J. & Xu, W., 2012. Evaluation of Section and Fiber Integration Point in Fiber Model. New York, Curran Associates, Inc., pp. 9789-9796.

Gorst, N. J. S., Williamson, S. J., Pallet, P. F. & Clark, L. A., 2003. Friction in Temporary Work, Birmingham: Health and Safety Executive.

Hassanieh, A., Valipour, H. R., Bradford, M. A. & Sandhaas, C., 2017. Modelling of steel-timber composite connections: Validation of finite element model and parametric study. Engineering Structures 138, pp. 35-49.

Izzi, M., Rinaldin, G. & Fragiacomo, M., 2016. Numerical Modelling of Steel to Timber Joints and Connectors for CLT Structures. Austria, WTCE.

Meghlat, E. M., Oudjene, M., Aider, H. A. & Batoz, J. L., 2013. A New Approach to Model Nailed and Screwed Timber Joints using the Finite Element Method. Construction and Building Materials 41, pp. 263-269.

Megson, T. H. G., 2014. Structural and Stress Analysis. 3rd ed. Waltham: Elsevier.

Oudjene, M., Meghlat, E. M., Ait-Aider, H. & Batoz, J. L., 2013. Non-linear Finite Element Modelling of the Structural Behaviour of Screwed Timber-to-Concrete Composite Connections. Composite Structure 102, pp. 20-28.

Oudjene, M. et al., 2018. Finite element modelling of the nonlinear load-slip behaviour of full-scale timber-to-concrete composite T-shaped beams. Composite Structure, Volume 196, pp. 117-126.

Porteous, J. & Kermany, A., 2007. Structural Timber Design to Eurocode 5. Victoria: Blackwell Science Ltd.

Rao, G. A. & Arora, J., 2013. Strength and Modes of Failure of Adhesive Anchors in Confined Concrete Under Direct Tensile Load. Toledo, Spanyol, s.n., pp. 1-11.

Suriani, E., 2012. Perilaku Sambungan Komposit Kayu-beton Dengan Alat Sambung Sekrup Kunci Terhadap Beban Lateral. Tesis ed. Yogyakarta: Departemen Teknik Sipil dan Lingkungan UGM. (In Indonesia)

Tjondro, J. A., Budianto, H. & Aryakusuma, W., 2011. The Flexural Strength and Rigidity of Albasia Nail-Laminated Beam. Civil Engineering Forum Vol XX/1, pp. 1211-1218.



DOI: https://doi.org/10.22146/jcef.47694

Article Metrics

Abstract views : 90 | views : 109

Refbacks

  • There are currently no refbacks.




Copyright (c) 2019 Journal of the Civil Engineering Forum


The content of this website is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
ISSN 5249-5925 (online) | ISSN 2581-1037 (print)
Jl. Grafika No.2 Kampus UGM, Yogyakarta 55281
Email : jcef.ft@ugm.ac.id
Web Analytics JCEF Stats