单词	discharging arch
释义	Discharging arch (Arch.) an arch over a door, window, or other opening, to distribute the pressure of the wall above. See Illust. of Lintel. See also: Discharge discharging arch discharging arch [′dis‚chärj·iŋ ‚ärch] (civil engineering) A support built over, and not touching, a weak structural member, such as a wooden lintel, to carry the main load. Also known as relieving arch. discharging arch, relieving arch, safety arch discharging arch An arch, usually segmental and often a blind arch, built above the lintel of a door or window to discharge the weight of the wall above the lintel to each side. ThesaurusSeesafety arch
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