abaqus 梁单元截面壁厚问题

One or more thickness of the box section is greater than 0.1 of the cross section dimension. The torsional rigidity may not be evaluated accurately since the calculation is based on the assumption that the wall thickness is much small in comparison to the cross section dimension
用梁单元该怎么处理？实际截面6X3.6m，壁厚，1.3m和0.8m