TY - JOUR
T1 - Frictional Resistance between Main Cable and Saddle for Suspension Bridges. I
T2 - Friction Characteristic of Single Strand
AU - Zhang, Qinghua
AU - Han, Shaohui
AU - Bao, Yi
AU - Cheng, Zhenyu
AU - Jia, Donglin
AU - Bu, Yizhi
N1 - Publisher Copyright:
© 2020 American Society of Civil Engineers.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - The frictional resistance between main cable and saddle of a long-span, multispan suspension bridge is significant for the safety of the bridge. Typically, the main cable of a long-span, multispan suspension bridge has hundreds of strands. It is essential to understand the frictional resistance between the main cable and saddle for the design and evaluation of the bridge. In order to understand the fundamental mechanism of formation of frictional resistance, this paper studies the frictional resistance between single strand and saddle through finite element analysis. A simple yet effective and efficient model is delivered as a tool for analyzing the frictional resistance between single strand and saddle. The model is validated against model test results, and then used to investigate the distribution of strand force, nominal coefficient of friction, and the friction components at the saddle's side and bottom surfaces. The strand tension distributions are nonuniform along the strand and in the radial direction of the saddle. The friction components at the saddle's side and bottom surfaces follow opposite trends as the relative slip between the strand and saddle increases.
AB - The frictional resistance between main cable and saddle of a long-span, multispan suspension bridge is significant for the safety of the bridge. Typically, the main cable of a long-span, multispan suspension bridge has hundreds of strands. It is essential to understand the frictional resistance between the main cable and saddle for the design and evaluation of the bridge. In order to understand the fundamental mechanism of formation of frictional resistance, this paper studies the frictional resistance between single strand and saddle through finite element analysis. A simple yet effective and efficient model is delivered as a tool for analyzing the frictional resistance between single strand and saddle. The model is validated against model test results, and then used to investigate the distribution of strand force, nominal coefficient of friction, and the friction components at the saddle's side and bottom surfaces. The strand tension distributions are nonuniform along the strand and in the radial direction of the saddle. The friction components at the saddle's side and bottom surfaces follow opposite trends as the relative slip between the strand and saddle increases.
KW - Contact
KW - Finite element analysis
KW - Frictional resistance
KW - Multispan suspension bridges
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U2 - 10.1061/(ASCE)BE.1943-5592.0001589
DO - 10.1061/(ASCE)BE.1943-5592.0001589
M3 - Article
AN - SCOPUS:85085730651
SN - 1084-0702
VL - 25
JO - Journal of Bridge Engineering
JF - Journal of Bridge Engineering
IS - 8
M1 - 04020042
ER -