abaqus螺栓连接施加螺栓载荷？ 50

202 nodes may not be used with a multi-point constraint since they are also part of pretension section. The nodes have been identified in node set ErrNodeMPCPretenSec. 这是报错的内容，我不知道我施加的螺栓载荷横截面是否有问题。我是在螺栓螺杆上截取的横截面，（我的螺杆和中间的夹具应该是没有连接的）想知道各位大佬有什么好的办法吗？？