Ultimate Load Capacity Analysis of Steel Scaffoldings Using Direct-Analysis Method
Publication: Practice Periodical on Structural Design and Construction
Volume 23, Issue 4
Abstract
For ensuring the safe load capacity of steel scaffoldings, the ultimate load capacity analysis is performed including an experimental test and numerical modeling. The test is relatively costly; therefore, it is used specifically for small configurations. Then, the parametric methods based on the calibrated numerical modeling are used. The ultimate strength analysis of steel structure requires a sophisticated nonlinear inelastic computer analysis and cumbersome procedure. As an alternative, elastic second-order computer analysis and the direct analysis method (DAM) are tried. The loading is given incrementally, and at each stage the available strengths and required strengths are evaluated. The ultimate limit load is considered achieved when the available capacity in the critical member equals that required. It has been proven that the calibrated DAM can be used to trace the ultimate load well. It can even be used to evaluate the effectiveness of bracing or lateral support placements. It is important especially for multistory steel scaffoldings that belong to sway frames because their strengths are significantly influenced by the stability issues.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The author would like to extend his gratitude to Mr. Susiato and Mr. Yosep Tan, the owner and head of PT. Putracipta Jayasentosa, manufacturers of steel scaffoldings and funding of the experimental loading tests. The author would also like to thank Mr. Sutadji Yuwasdiki, the chief of the experimental loading test executing team at the Research Institute for Human Settlements, Ministry of Public Works, Bandung. Without them, this research on numerical analysis of steel scaffolding systems would have never been completed.
References
Adam, J. M. 2013. “Special issue on analysis of structural failures using numerical modeling.” J. Perform. Constr. Facil. 27 (1): 2–3. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000420.
AISC. 2005. Specification for structural steel buildings. ANSI/AISC 360-05. Chicago: AISC.
AISC. 2010. Specification for structural steel buildings. ANSI/AISC 360-10. Chicago: AISC.
AISC. 2016. Specification for structural steel buildings. ANSI/AISC 360-16. Chicago: AISC.
Andresen, J. 2012. “Investigation of a collapsed scaffold structure.” Proc. Inst. Civ. Eng. Forensic Eng. 165 (2): 95–104. https://doi.org/10.1680/feng.11.00021.
CSI (Computers & Structure, Inc.). 2011. SAP2000 linear and nonlinear static and dynamic analysis and design of three-dimensional structure. Berkeley, CA: CSI.
Dewobroto, W. 2016. Steel structure–Behavior, analysis & design–AISC 2010. 2nd ed. Tangerang, Indonesia: Jurusan Teknik Sipil UPH.
East, J., and F. R. Rutz, 2016. “Stability of trusses: Direct analysis method compared to experimental results.” In Proc., Geotechnical and Structural Engineering Congress 2016, edited by C. Y. Chandran and M. I. Hoit, 201–211. Red Hook, NY: Curran Associates.
Hadipriono, F. C., and H. K. Wang. 1987. “Causes of falsework collapses during construction.” Struct. Saf. 4 (3): 179–195. https://doi.org/10.1016/0167-4730(87)90012-9.
Kim, S. E., K. W. Kang, and D. H. Lee. 2003. “Full-scale testing of space steel frame subjected to proportional loads.” Eng. Struct. 25 (1): 69–79. https://doi.org/10.1016/S0141-0296(02)00119-0.
Toma, S., and W. F. Chen. 1992. “European calibration frames for second-order inelastic analysis.” Eng. Struct. 14 (1): 7–14. https://doi.org/10.1016/0141-0296(92)90003-9.
Toma, S., W. F. Chen, and D. W. White. 1995. “A selection of calibration frames in North America for second-order inelastic analysis.” Eng. Struct. 17 (2): 104–112. https://doi.org/10.1016/0141-0296(95)92641-K.
Valerii, V. 2011. “Comparison of scaffolding systems in Finland and in Russia.” Bachelor’s thesis, Saimaa Univ. of Applied Sciences.
Weesner, L. B., and H. L. Jones. 2001. “Experimental and analytical capacity of frame scaffolding.” Eng. Struct. 23 (6): 592–599. https://doi.org/10.1016/S0141-0296(00)00087-0.
Information & Authors
Information
Published In
Practice Periodical on Structural Design and Construction
Volume 23 • Issue 4 • November 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Apr 12, 2018
Accepted: May 11, 2018
Published online: Aug 28, 2018
Published in print: Nov 1, 2018
Discussion open until: Jan 28, 2019
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.