On the basis of the elastic theory of space, this paper analyzes the stress of safety barrier of highway bridges impacted by vehicle and clarifies the damage modal of the wall type of safety barrier.

• 从空间弹性理论角度,对公路桥梁墙式护栏在汽车碰撞力作用下的墙体进行应力分析,找出墙体破坏区域,明确了碰撞后墙体的破坏形式。