| 释义 |
ˈcounter-arch, n.
[counter- 8.]
a. An inverted arch opposite to another arch.b. A relieving arch or ‘arch of discharge’.
c. An arch connecting counterforts at the top.
1726Leoni Designs Pref. 4 a, Arches and Counter-Arches..make the strongest bond between divided Walls. 1751C. Labelye Westm. Br. 83 The two damaged Arches were rebuilt..with much less Materials in the Inside..by Means of a Counter-arch..and two Semicounter Arches. 1837Penny Cycl. VIII. 107/2 Counter-forts..are sometimes connected together by counter-arches. 1838F. W. Simms Public Wks. Gt. Brit. 22 The [Thames] tunnel is to be made with a circular brick arch and curved side walls, resting on stone footings or skew backs, the whole being supported by a brick invert or counter-arch.
Hence counter-ˈarch v., to furnish or support with a counter-arch. counter-ˈarched ppl. a.
1785Roy in Phil. Trans. LXXV. 465 This piece being firmly screwed to the cheeks of the slide, and counter⁓arched outwardly, forms a strong butt for the fixed end of the..rod..to act against. 1828J. M. Spearman Brit. Gunner 354 In order to diminish the pressure of the earth against the revêtement, several tiers of arches may be built between the counterforts in the form of segments of circles, their extremities being worked into the masonry of the counterforts. These form what is called a counter-arched revêtement. |