中国传统木伸臂梁桥研究综述

Research Summary of Chinese Traditional Wooden Beam Bridges with Extended Arms

简支木梁桥、木伸臂梁桥和编木拱桥共同组成了中国传统木构梁桥支撑体系的三种结构形式。其中编木拱桥是在折边拱桥的基础上演变发展而来、木伸臂梁桥是在简支梁桥的基础上演变发展而来。编木拱桥有着与北宋张择端的名画《清明上河图》中“汴水虹桥”相似的结构形态,吸引了学界的主要关注与研究,因此学界常用木拱廊桥指代编木拱桥,实则相对片面:而木伸臂梁桥作为一种典型的传统木构梁桥类型,广泛分布于我国的山地地区,却迟迟未引起学界重视。因此,本文的文献综述从视角更大的木构梁桥入手,以木伸臂梁桥为核心,可大致分为九类研究类型。

As a typical type of traditional wooden beam bridge,wooden beam bridges with extended arms are widely scattered in China's mountainous areas,but they haven't yet attracted the attention from academic circles.Therefore,the literature review in this article takes the greater perspective of wooden beam bridges.With wooden beam bridges with extended arms as the core,they can roughly fall into nine types.