Calculation Method on Bearing Capacity of Anchor Bolt of Transmission Line Tower Foundation Considering Influence of Horizontal Force

Abstract:

Anchor bolt which is one of the most important component connecting foundation and transmission tower bears the force transmitted from superstructure. At present, in the conventional design method, uplift force is only included, however, the influence of horizontal force on bearing capacity of anchor bolt is neglected. Thus, a theoretical method on obtaining bearing capacity of anchor bolt is proposed for the first time based on the third strength theory in this paper, in which the influence of horizontal force is considered. According to the third strength theory, the calculation results of bearing capacity of anchor bolt under different force are obtained. It can be seen that the cross-section area of single anchor bolt shows linear increase with the increment of vertical uplift force, at the same time, the influence of horizontal force to bearing capacity of anchor bolt is more significant with the addition of the ratio of horizontal force to uplift force, which should be attached enough attention in engineering application. And the conclusion achieved in this work can provide valuable guidance for anchor bolt design of the transmission line project.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 327-330
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.327
• Online since: May 2012
• Authors: Qiang Cui, Xian Long Lu
• Keywords: Anchor Bolt, Horizontal Force, Ratio of Horizontal Force to Uplift Force, Tension Shear Stress State

References

[1] Electric Industry Standard of People's Republic of China. Technical regulation for designing foundation of overhead transmission line (DL/T 5219-2005) [S]. Beijing：China Electric Power Press, 2005.

[2] Shan Zuhui. Mechanics of Materials(I)[M]. Beijing: Higher Education Press, 2010.

[3] Sun Xunfang, Fang Xiaoshu, Guan Laitai etc. Mechanics of Materials (I)[M]. Beijing: Higher Education Press, 2009.

[4] Liu Zhenya. Universal design of Power Transmission and Transformation Project in State Grid Corporation of China[M]. Beijing: China Electric Power Press, 2010.