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Comparative study on the cable stayed bridge under moving load state

이동하중을 받는 사장교의 거동비교

  • Sung, Ikhyun (Department of Civil Engineering, Hanseo University)
  • Received : 2017.05.28
  • Accepted : 2017.06.30
  • Published : 2017.06.30

Abstract

Cable-stayed bridges are bridges with long spans for special purposes. Due to the long span, the dynamic response of the vehicle to the moving load is very special. The behavior also has nonlinear, which makes it difficult to design. In this study, the responses of cable - stayed bridges are considered considering various vehicle loads and the behavior of long - span bridges under moving loads is investigated. Especially, when the loads for one direction and for both directions move with speed, the behavior of the bridges is found to be due to the flexibility of the cable. It can be seen that the analysis including the dynamic behavior of the cable and the top plate is more effective because the influence of the vehicle load tends to amplify the vertical deformation together with the vibration of the cable.

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