The Study of High Strength Bolt Preload with Hydraulic Tensioner Installation

Abstract:

Preloading the high strength bolt using hydraulic extension method is a fast and efficient method for bolt installation. Hydraulic bolt tension device can guarantee the initial tension of bolt well. However, if the relation of initial tension and the final remaining preload of bolt cannot be determined, the preload on the bolts still cannot be guaranteed. This paper uses theoretical analysis method to research the relation between the eventual preload and the initial tension of high strength bolts on Heavy-duty Gantry beams. Then we proposes a set of calculation method of bolt installation preload and the initial tension and provides theoretical basis for the installation of heavy-duty segmented beam.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 988-994
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.988
• Online since: August 2011
• Authors: Tie Neng Guo, Gen Li, Li Gang Cai, Zhi Liang Wang
• Keywords: Bolt, Combining Stiffness, Hydraulic Tensile, Preload

References

[1] Sayed A. Nassar: Journal of Mechanical Design Vol. 131 (2009), pp.121001-1

[2] Z.M. Levina: Research On The Static Stiffness Of Joints In Machine Tools (ENIMS Press, USSR 1967)

[3] Jianqun Liu: Analysis and Calculation about Axial Load of Rotate Shoulder Connection. Jilin University, 2005 (In Chinese)

[4] T. Fukuoka: Journal of Pressure Vessel Technology Vol. 116 (1994), p.443

[5] T. Fukuoka: Journal of Pressure Vessel Technology Vol. 114 (1992), p.433

[6] J.G. Williams, R.E. Anley, D.H. Nash, and T.G.F. Gray: International Journal of Pressure Vessels and Piping (2009)

DOI: 10.1016/j.ijpvp.2009.01.006

[7] Kunping Huang: Metallurgical Equipment Vol. 155 (2006), p.46 (In Chinese)

[8] Wenxuan Gou: Mechanics of Materials (Science Press, China 2010) (In Chinese)