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拱券
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拱券
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拱券
由块状料(砖、石、土坯)砌成的跨空砌体。是拱和券的合称。利用块料之间的侧压力建成跨空的承重结构的砌筑方法称发券,用此法砌于墙上做门窗洞口的砌体称券;多道券并列或纵联的构筑物(水道、屋顶)称筒拱,用此法砌成的穹窿称拱壳。
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