Study on Method for Evaluating Securing Arrangements of Containers on Deck-II : Development of New Numerical Model for Container Lashing Arrangements

Abstract

As previously reported, we developed a two-dimensional numerical model for calculating the forces acting on containers and lashing rods under the given acceleration conditions, to establish the practical method for evaluating securing arrangements of containers on deck. However, the tension calculated based on this model did not agree with the tension measured. To improve the accuracy of the calculated tension, we developed a new numerical model taking the nonlinear behavior of lashing rods and the interaction between Door end and Closed end of the container into consideration. It is confirmed that the new model can provide better results than the former one.