Experimental Investigation and Theoretical Analysis of Polystyrene Panels with Load Bearing Thin-Walled Cold-Formed Elements

Abstract:

The paper presents preliminary results of theoretical and experimental analysis of the resistance of construction panels at compressive loading. Panels, made on the base of polystyrene foam in combination with thin-walled cold-formed elements, should be used as a load-bearing wall panels for simple and small structures. Investigated panels, with dimensions 1.0x2.5x0.15 m, are formed by six thin-walled elements of U-profile with a thickness of 0.8 mm, which are stabilized by glued polystyrene board EPS 100 S, 150 mm thick. Sufficient number of strain gages and inductive sensors were used for the experimental measurement of strains and deflections. Strain gauges and inductive sensors were both-sided suitably located on each tested panel. Spatial calculation model was created within software SCIA and ANSYS. Geometrically nonlinear analysis was used for the numerical solution. Based on the numerical and experimental results, the efficiency of polystyrene boards on the stability of used thin-walled steel elements was determined.

• Periodical: Applied Mechanics and Materials (Volume 769)
• Pages: 145-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.769.145
• Online since: June 2015
• Authors: Mohamad Al Ali*, Michal Tomko, Ivo Demjan
• Keywords: Cold-Formed Profiles, Initial Imperfections, Thin-Walled Web

References

[1] S. Nuno, B. Young, D. Camotima, Non-linear behaviour and load-carrying capacity of CFRP strengthened lipped channel steel columns, Engineering Structures, Vol. 30, Issue 10, 2008, p.2613–2630.

DOI: 10.1016/j.engstruct.2008.02.010

[2] Y.B. Kwon, B.S. Kim, G.J. Hancock, Compression tests of high strength cold-formed steel channels with buckling interaction, Journal of Constructional Steel Research, 2009, Vol. 65, Issue 2, p.278–289.

DOI: 10.1016/j.jcsr.2008.07.005

[3] L. Yuan-Qi, S. Zu-Yan, W. Lei, W. Yan-Min, X. Hong-Wei, Analysis and design reliability of axially compressed members with high-strength cold-formed thin-walled steel, Thin-Walled Structures, 2007, Vol. 45, Issue 4, p.473–492.

DOI: 10.1016/j.tws.2007.02.012

[4] B. Young, E. Ellobody, Design of cold-formed steel unequal angle compression members, Thin-Walled Structures, 2007, Vol. 45, Issue 3, p.330–338.

DOI: 10.1016/j.tws.2007.02.015

[5] J.R.K. Rasmussen, The direct strength method for stainless steel compression members, Journal of Constructional Steel Research, 2008, Vol. 64, Issue 11, p.1231–1238.

DOI: 10.1016/j.jcsr.2008.07.007

[6] STN EN 1991-1-4 Eurocode 1: Actions on structures, Part 1-4: General actions, Wind actions, SUTN, (2010).

DOI: 10.1680/dgte1.31524

[7] STN EN 1991-1-1 Eurocode 1: Actions on structures, Part 1-1: General actions, Densities, self-weight, imposed loads for buildings, SUTN, (2007).

DOI: 10.3403/30396138

[8] STN EN 1993-1-1 Eurocode 3: Design of steel structures, Part 1-1: General rules and rules for buildings, SUTN, (2006).

[9] STN EN 1993-1-3 Eurocode 3: Design of steel structures, Part 1-3: Supplementary rules for cold-formed members and sheeting. CEN, Brussels, (2006).

DOI: 10.3403/02338401u

[10] J. Ravinger, Stability & vibration, STU Bratislava, Bratislava, 2012, 135 p.

[11] E. Papadimitriou, L. Snirc, J. Ravinger, Stability of Thermo-Steel Panels, Stability of Thermo-Steel Panels. 14th International Scientific Conference VSU´2014. Vol. II. Proceedings. Sofia, Bulgaria, 2014, pp.161-166.

DOI: 10.4028/www.scientific.net/amm.769.302

[12] V. Kvocak, V. Kozlejova, D. Dubecky, Analysis of encased steel beams with hollow cross-sections. Procedia Engineering, Steel Structures and Bridges 2012, Podbanske, Slovakia, 2012, Vol. 40, p.223–228.

DOI: 10.1016/j.proeng.2012.07.084

[13] V. Kvocak, P. Beke, N. Hocova, Analysis of some selected types of joints in lattice structures, Structures and Architecture: ICSA 2010, Guimaraes, Portugal, Leiden, AK, 2010, p.637–642.

DOI: 10.1201/b10428-84

[14] N. Daneshjo, P. Korba, R. Vargova, B. Tahzib, Application of 3D modeling and simulation using modular components, Applied Mechanics and Materials, Vol. 389, 2013, pp.957-962.

DOI: 10.4028/www.scientific.net/amm.389.957

[15] STN EN 1990/A1/AC2 Eurocode: Basis of structural design, SUTN, 2002/2005/(2010).

[16] M. Rovnak, A. Duricova, Behavior evaluation of shear connection by means of shear-connection strips, Steel & Composite Structures, Vol. 4, No. 3, 2004, pp.247-263.

DOI: 10.12989/scs.2004.4.3.247