悬臂结构破坏事故不仅由悬臂板根部截面强度不足所引起,而悬臂板发生倾覆倒塌事故更为普遍。悬臂结构如果发生倾覆,常常在一瞬间,后果不堪设想。一、倾覆方式1.“天平式”悬臂结构的倾覆图1这类“天平式”的悬臂结构犹如“浮萍板”,即顶板与支承结构没有抗倾覆锚固措施。只有当两边一样重,才能保持自重平衡,如果有人爬上去或局部堆物、刮大风等意外情况发生,就有倾 The failure of the cantilever structure is caused not only by the lack of cross-section strength of the cantilever plate, but also by the collapse of the cantilever plate. If a cantilever structure is overturned, it often takes a moment and the consequences can be disastrous. 1. Overturning mode 1. Overturning of “balance type” cantilever structure Figure 1 This kind of “balance type” cantilever structure is like a “duck board”, that is, the top plate and supporting structure do not have anti-overturning and anchoring measures. Only when both sides are as heavy can we maintain our balance of self-resistance. If someone climbs up, or if an accident occurs, such as a local pile, a windy wind, etc., there is a tilt.