Fatigue Design and Prevention in Movable Scaffolding Systems

Hugo Coelho 1 , Alberto Torres 1 , Pedro Pacheco 1 , Cristiano Moreira 1 , Rute Silva 1 , José M. Soares 1 , and Dânia Pinto 1
  • 1 BERD, Portugal Faculty of Engineering of University of Porto, Portugal

Abstract

The Movable Scaffolding System (MSS) is a heavy construction equipment used for casting situ of concrete bridge decks. In the past decades, MSSs have become increasingly complex and industrialized, enlarging its span ranges, incorporating auxiliary elevation machinery and increasing productivity. The tendency nowadays is for strong reutilization and the notion of MSS as a disposable or temporary structure is somehow reductive. The main structure of MSSs may be potentially exposed to fatigue, usually characterized by low number of cycles with significant stress amplitude. Fatigue may be prevented through adequate design; judicious selection of materials; demanding quality control and implementation of robust inspection and maintenance plans.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • 1. Firat, F. K..: Development of Load and Resistance Factors for Reinforced Concrete Structures in Turkey. Ph.D Thesis, Ankara, Middle East Technical University Ankara 2007.

  • 2. Harridge, S.: Launching Gantries for Building Pre-cast Segmental Balanced Cantilever Bridges, Structural Engi-neering International Journal of IABSE, 21, 4(2011) 406-412.

  • 3. Manual de Cimbras Autolanzables, 1ª ed., CNC, Madrid, 2007.

  • 4. Pacheco, P., A Scaffolding System strengthened with Organic Prestressin, in: Structural Engineering International Journal of IABSE, 17, 4 (2007) 314-321.

  • 5. Pacheco, P.: High Productivity in Bridge Construction – the OPS effect, in: Multi-Span Large Bridges conference 2015, 243-244.

  • 6. Resende, A., Coelho, H,: Preliminary assessment of wind actions in large span MSS, in: Multi-Span Large Bridges conference 2015, 267-268.

  • 7. Sedlacek, G., Feldmann, M., Kühn, B., Tschickardt, D., Höhler, S., Müller, C., Hensen, W., Stranghöner, N., Dahl, W., Langenberg, P., Münstermann, S., Brozetti, J., Raoul, J., Pope, R., Bijlaard F.: Commentary and worked examples to EN 1993-1-10 “Material toughness and through thickness properties” and other toughness oriented rules in EN 1993, JRC Scientific and Technical Report 2008.

OPEN ACCESS

Journal + Issues

Search