Lightning-induced magnetic field distribution on cable-stayed bridge based on modified equivalent electrical-circuit method

In the past years, many researchers have studied the LIMF inside the buildings. They proposed different approaches to model the building structures. These approaches can be classified into two groups. One is the circuit approach and the other is the field approach. The circuit approach is a simplified modeling approach for the building structure in which the branches of the building structure are coupled with one another and there is only induced electromagnetic field inside the building. For cable-stayed bridge, a modified equivalent electrical-circuit method is developed in this paper for LIMF analysis of a cable-stayed bridge with different structure from normal buildings.