An Encyclopædia of Architecture: Historical, Theoretical, and PracticalLongman, Brown, Green, and Longmans, 1842 - 1089 Seiten |
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Seite 399
... extrados , or upper side , can be properly horizontal . In the Memoirs of the Academy of Sciences , 1729 , M. Couplet published a memoir on the thrusts of arches , wherein he adopts the hypothesis of polished voussoirs ; but , finding ...
... extrados , or upper side , can be properly horizontal . In the Memoirs of the Academy of Sciences , 1729 , M. Couplet published a memoir on the thrusts of arches , wherein he adopts the hypothesis of polished voussoirs ; but , finding ...
Seite 404
... extrados , it follows that the arm of the lever , which is the same for all the wedges , is 206 , from which we derive for the thrust p of the formula , x = 2p - 2bc bb a + ᄒ a aa = 1338 07 x 206 33 = 276084 ; b which expresses the ...
... extrados , it follows that the arm of the lever , which is the same for all the wedges , is 206 , from which we derive for the thrust p of the formula , x = 2p - 2bc bb a + ᄒ a aa = 1338 07 x 206 33 = 276084 ; b which expresses the ...
Seite 406
... extrados of the keystone ( fig . 572. ) , fracture does not occur in the middle of the haunches if the piers are of the same thickness as the lower part of the arch . 22. Arches whose thickness or depth diminishes as they rise to the ...
... extrados of the keystone ( fig . 572. ) , fracture does not occur in the middle of the haunches if the piers are of the same thickness as the lower part of the arch . 22. Arches whose thickness or depth diminishes as they rise to the ...
Seite 407
... divided into nine equal voussoirs , whose depth to the extrados is 21 lines , and whose interior diameter is 9 inches . 1397. Having drawn the lines heretofore described , we shall Dd 4 CHAP . I. 407 ARCHES . Arches CHAP III.
... divided into nine equal voussoirs , whose depth to the extrados is 21 lines , and whose interior diameter is 9 inches . 1397. Having drawn the lines heretofore described , we shall Dd 4 CHAP . I. 407 ARCHES . Arches CHAP III.
Seite 410
... extrados is equal in all parts , it will only stand , supposing the piers immoveable , as long as its thickness is less than one ninth part of the opening . 1410. II . The cycloid , which includes the smallest area , exerts the least ...
... extrados is equal in all parts , it will only stand , supposing the piers immoveable , as long as its thickness is less than one ninth part of the opening . 1410. II . The cycloid , which includes the smallest area , exerts the least ...
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1-inch deal 15th century arch architect architecture architrave axis balusters base bead butt bead flush breadth bricks building called cathedral centre of gravity century church circle circular circumference colour columns construction Corinthian order cube cubic foot curve described diameter divided divisor Doric order draw edge edifices ellipsis entablature equal equation erected example extrados feet foot fraction half height Hence horizontal inches intercolumniations iron joints length lime limestone moulded multiplied nave oolite ornaments ovolo palace panels parallel parallelogram perpendicular piece piers placed plane portico Prop proportion pyramid quantity radius rectangle right angles right line Roman Roman architecture roof sandstone scantlings side sofite solid square root stone style subtract supposed surface tangent temple thickness timber tower transepts triangle vault vertical Vitruvius voussoirs wainscot walls whence whereof width