基于ANSYS混凝土箱梁结构内敷设电缆热场仿真

Simulation of Thermal Field for cables laying inside Concrete Box Girder Structure with ANSYS

利用桥梁通道敷设长距离高压电缆,为解决临海诸岛供电难问题提供了新途径。由于电缆主体需敷设于混凝土箱梁空间内,解决电缆热效应对箱梁结构影响是保证该类输电工程长期稳定运行的难点之一。本文基于ANSYS有限元工具对电缆及箱梁结构进行热场建模、仿真和计算,提出评价电缆散热对桥梁影响的方法。

Laying long-distance HV cables along the bridge provides a new way to supply power energy to the coastal islands.As the main cables must be laid in concrete box girder space,the impact of heat effect of the cables becomes one of the difficulties for long-term stable operation.In this paper we will create the thermal field model of cables inside box girder structure and do the simulation and calculation in order to propose the evaluation method of the cable heat effect.