Theoretical Study of the Spherical Bearing Rotational Torque

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Abstract:

A theoretical analysis model to calculate the spherical bearing rotational torque is established based on two assumptions: a) The spherical cap suffers uniformly distributed pressure along the convex surface, pointing towards the center of the sphere; b) The pressure on the rotating plate imposed by the spherical cap flat surface is distributed as a right trapezoid. Compared with the test results, it can be found that the value calculated according to the theoretical formula is closer to the experimental value than that calculated according to the code. Keywords: spherical bearing, rotational torque, bearing design, bearing test.

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1344-1347

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Zhu Yifan, Liu Haifeng. The influence of bearing rotational restraint effect on the internal forces of continuous beams and its explicit expressions[J]. Journal of Qingdao Institute of Architecture and Engineering, 1998, 19(3): 23-27.

Google Scholar

[2] Zhuang Junsheng. Bridge bearings [M](second edition). Beijing: China Railway Press, (2000).

Google Scholar

[3] GB/T 17955-2009. Spherical bearings for bridges[S]. Beijing: China Standards Press, (2009).

Google Scholar

[4] Wang Yanming, Ma Jun. Spherical bearing force performance theory analysis[C]. The seventh session of national modern structural engineering academic seminar. Beijing: Industrial Construction, 2007. 1553-1565.

Google Scholar