读了《建筑工人》1994年第7期《圈梁为什么向里掉下来》一文后,我认为仅从文中理论分析还不能完全说明问题。文中理论分析得出 P=QL/4f。该文认为 P 值的大小与撞击力 Q 大小无关,而主要取决于 f 值。对此,我的看法却不尽相同。试想如按此分析结果只要发生“推牌九”事 After reading “Building Workers” in the 7th issue of “After falling in the ring beam” in 1994, I think that the theoretical analysis alone does not fully explain the problem. The theoretical analysis in the paper yields P=QL/4f. In this paper, it is considered that the magnitude of the P value is independent of the impact force Q, but mainly depends on the value of f. In this regard, my views are not the same. Just imagine that if you press this analysis result, you only have to “push the card nine” thing.