A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ANALISYS METHOD FOR ASYMMETRIC VIBRATION OF FINGER TYPE BRIDGE EXPANSIION JOINT AND FINGER TYPE BRIDGE EXPANSION JOINT REDUCING ASYMMETRIC VIBRATION
The present invention relates to a finger joint and an asymmetric behavior analysis method of a finger joint. According to the present invention, the finger joint is formed by being in contact with the lower surface of a joint plate between the end of a concrete layer and an anchor bolt, and comprises a force reducing member prepared to reduce an upward repulsive force of the joint plate adjacent to the anchor bolt when a vehicle is passing. Moreover, the force reducing member is formed as an empty space or made of a soft filler. According to the present invention, the asymmetric behavior analysis method of a finger joint is capable of estimating a behavior characteristic of a finger joint as asymmetric behavior, estimating potential energy of a first deformation mode and potential energy of a second deformation mode as the same, and thereby obtaining the elastic deformation rate of a joint plate. The present invention has effects of preventing unexpected destruction due to asymmetric vibration characteristics by inducing the finger joint to be symmetrically vibrated in a supporting point by a force reducing member, reducing the maximum stress applied to a finger joint fixing anchor by 20% or more as being caused by asymmetrical vibrations, providing a new destructive mode of an anchor bolt which was not provided in a conventional design analysis method, and providing a simplified analysis method with respect to asymmetric vibrations similar to the real experiment result.
ANALISYS METHOD FOR ASYMMETRIC VIBRATION OF FINGER TYPE BRIDGE EXPANSIION JOINT AND FINGER TYPE BRIDGE EXPANSION JOINT REDUCING ASYMMETRIC VIBRATION
The present invention relates to a finger joint and an asymmetric behavior analysis method of a finger joint. According to the present invention, the finger joint is formed by being in contact with the lower surface of a joint plate between the end of a concrete layer and an anchor bolt, and comprises a force reducing member prepared to reduce an upward repulsive force of the joint plate adjacent to the anchor bolt when a vehicle is passing. Moreover, the force reducing member is formed as an empty space or made of a soft filler. According to the present invention, the asymmetric behavior analysis method of a finger joint is capable of estimating a behavior characteristic of a finger joint as asymmetric behavior, estimating potential energy of a first deformation mode and potential energy of a second deformation mode as the same, and thereby obtaining the elastic deformation rate of a joint plate. The present invention has effects of preventing unexpected destruction due to asymmetric vibration characteristics by inducing the finger joint to be symmetrically vibrated in a supporting point by a force reducing member, reducing the maximum stress applied to a finger joint fixing anchor by 20% or more as being caused by asymmetrical vibrations, providing a new destructive mode of an anchor bolt which was not provided in a conventional design analysis method, and providing a simplified analysis method with respect to asymmetric vibrations similar to the real experiment result.
ANALISYS METHOD FOR ASYMMETRIC VIBRATION OF FINGER TYPE BRIDGE EXPANSIION JOINT AND FINGER TYPE BRIDGE EXPANSION JOINT REDUCING ASYMMETRIC VIBRATION
ZI GOANG SEUP (author) / XINGJI ZHU (author)
2015-08-12
Patent
Electronic Resource
Korean
Asymmetric vibration of finger-type bridge expansion joint for design consideration
| Online Contents | 2014
Functioning Supported type cantilever bridge finger expansion joint
European Patent Office | 2021
Functioning Supported type cantilever bridge finger expansion joint
| European Patent Office | 2021