Bitumen Sliding Joints for Friction Elimination in Footing Bottom

Abstract:

Use of a sliding joint is an effective method to decrease the stress in foundation structure where there is a horizontal deformation of subsoil (areas afflicted with underground mining) or horizontal deformation of a foundation structure (pre-stressed foundations, creep, shrinkage, temperature deformation). A convenient material for a sliding joint is a bitumen asphalt belt. Experiments for different types of bitumen belts were undertaken at the Faculty of Civil Engineering - VSB Technical University of Ostrava in 2008. Since 2011 an extension of the 2008 experiments has been in progress and the shear resistance of a slide joint is being tested as a function of temperature in a temperature controlled room. In this paper experimental results of temperature dependant shear resistance are presented. The result of the experiments should be the sliding joint shear resistance as a function of deformation velocity and temperature. This relationship is used for numerical analysis of stress/strain relation between foundation structure and subsoil.

• Periodical: Applied Mechanics and Materials (Volume 188)
• Pages: 247-252
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.188.247
• Online since: June 2012
• Authors: Radim Čajka, Pavlina Mateckova, Martina Smirakova
• Keywords: Bitumen Belt, Pre-Stressed Foundation, Sliding Joints, Soil-Structure Interaction (SSI), Undermined Area

References

[1] R. Cajka, Soil - structure interaction in case of exceptional mining and flood actions, proceedings of conference COST 12, Innsbruck, Austria, (2005).

DOI: 10.1201/9780203970843.ch41

[2] R. Cajka, P. Manasek, Building structures in danger of flooding, in proceedings of IABSE Conference on Role of Structural engineers towards reduction of poverty, New Delhi, India, (2005).

DOI: 10.2749/222137805796272296

[3] O. Sucharda, J. Brozovsky, Approach to the assessment of concrete structures based on non-linear elasto-plastic analysis, proceedings of the 12th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2009, Funchal, Madeira, (2009).

DOI: 10.4203/ccp.91.121

[4] V. Balcarek, J. Bradac, Utilization of bitumen insulating stripes as sliding joints for buildings on undermined area, J. Civil Engineering. Vol. 2 (1982). In Czech.

[5] R. Cajka, P. Manasek, Finite element analysis of a structure with a sliding joint affected by deformation loading, proceedings of the 11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007, St. Julians, Malta, (2007).

DOI: 10.4203/ccp.86.18

[6] R. Cajka, M. Janulikova, P. Mateckova, M. Stara, Laboratory Testing of Asphalt Belts with the Influence of Temperature, Transactions of the VŠB - Technical University of Ostrava, Construction Series, volume 11, 2/2011, http: /versita. metapress. com/content/122059.

DOI: 10.2478/v10160-011-0020-0

[7] R. Cajka, M. Janulikova, P. Mateckova, M. Stara, Modelling of foundation structure with slide joint with temperature dependant characteristics, proceedings of the 13th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2011, Chania, Crete, 2011 Reference to a book.

DOI: 10.4203/ccp.96.208

[8] CSN 730039, Design of building structures at undermined areas. Basic requirements. CSNI, Prague, 1990. In Czech.

[9] EN 1992-1. 1, Design of concrete structures - Part 1-1: General rules and rules for buildings. CNI (2006).