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在修建石拱桥中,桩式拱架、灯龙式拱架需要木料多,目前由于社会主义建设的发展,木料一天一天显得更加宝贵了。为了给国家节约木材,在修建小跨径衣村石拱桥工程中,我们曾大胆地制用过一些简易的拱架,这里介绍其中的一种,以供参考,并希提出改正意见。下图便是这种拱架,它的主要承重构件是弧形梁,梁上横向铺上模板(为了节约起见,模板间隔可留5厘米空隙)。弧形梁每节100～150厘米长,可利用短圆木制成,梁节接头做成公母对头榫,梁的两端
In the construction of stone arch bridge, pile arch, lamp-shaped arch need more timber, due to the development of socialist construction, timber day by day even more valuable. In order to save the country timber, in the construction of small-span YiCun stone arch bridge project, we have boldly used some simple arch, here is one of them for reference, and I hope to make corrections. The figure below shows the arch. Its main load-bearing component is an arched beam, which is laterally spread over the beam (for reasons of economy, 5 cm of space is left between the templates). Curved beams each section of 100 to 150 cm long, can be made of short round wood, beam joints made of male and female head tenon, both ends of the beam