After the key column fails, the internal force is redistributed by the catenary action of the joints to prevent the progressive collapse of structures, while the joints are under the state of bending moment combined with tensional force.
结构体系中当关键柱破坏后,体系将通过节点的悬索作用实现内力的重新分配,防止结构出现连续倒塌,此时节点将承受弯矩和拉力的共同作用。
When the mandibular body fracture is under the premolar and molar of fracture side occlusion 、 the mandibular angle fracture is under the molar of fracture side occlusion, the stress of the upper fracture part is bending force and the lower is compressing force.
体部骨折患侧前磨牙、磨牙咬合以及角部骨折患侧磨牙咬合情况下,骨断层应力分布显示下部为张力带、上部为压力带。
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