榫卯结合是古代中国建筑木结构中一种常用的连接方式。两个相接的木构件在连接部位分别制成凸凹形状，凸出的叫榫头，凹进的叫眼。
因此，我们推断“应县木塔”的结构中可能存在比较接近国外地板“锁扣”形式的榫卯结合形式。
Therefore, we can deduce that the structure of Wooden Tower may exist the grooves-and-tongues joint structure which is close to the Interlocking structure in foreign countries.
结合整体动力分析结果，根据榫卯连接减震耗能的原理，提出一种具有耗能缝隙的直桩节点设计。
On the basis of the dynamic analysis and a power-wasting theory of tenon-and-mortise work, a joint with power-wasting gap between the vertical pile and its cap is designed.
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