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Title |
Analysis of the Frequency for Cable of Cable-Stayed Bridges to Temperature Variation
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Authors |
이현철(Hyun-Chol Lee) ; 김진수(Jin-Soo Kim) ; 박경호(Kyoung-Ho Park) ; 이종재(Jong-Jae Lee) |
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DOI |
https://doi.org/10.11112/jksmi.2021.25.2.23 |
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Keywords |
사장교; 케이블; 온도; 고유진동수; 변위 Cable-Stayed Bridge; Cable; Temperature; Frequency; Displacement |
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Abstract |
Cable was targeted for cable, which is a main material of cable-stayed bridges that have high frequency of use at home and abroad and many future construction plans. First of all, experiments were conducted on temperature loads that were permanently used due to changes in temperature of cables and changes in air temperature, taking into account changes in normal fat. The dynamic characteristics of cables were compared and analyzed by applying various systems to change dynamic characteristics by applying temperature change of cables. Comparing and analyzing the dynamic characteristics of cables, the acceleration, frequency and tension of cables due to temperature rise tended to decrease, the degree of influence of displacement of cables was analyzed, and the results of the mode characteristics of cables were analyzed. In particular, the correlation of cable acceleration, natural frequency, and tension due to changes in cable temperature showed that the cable tension is highly sensitive to acceleration and natural frequency
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