This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1865 Excerpt: ...of a brick and a-half thick, if each brick bo 9 inches long, is equal to 11J cubic yards very nearly. Section VII.--Of Buttresses and Retaining Walls. 263. The Stability of Blocks of 3Inonry and Brickwork in General (A.M., 211) depends on the conditions already stated in Article 139, p. 220--viz., that of stability of ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1865 Excerpt: ...of a brick and a-half thick, if each brick bo 9 inches long, is equal to 11J cubic yards very nearly. Section VII.--Of Buttresses and Retaining Walls. 263. The Stability of Blocks of 3Inonry and Brickwork in General (A.M., 211) depends on the conditions already stated in Article 139, p. 220--viz., that of stability of position, which requires that the structure shall not give way by overturning; and that of stability of friction, which requires that it shall not give way by the sliding of one course upon another; and those two conditions ought to be fulfilled at tlie bed-joint of each course. The following are the most convenient ways of expressing these conditions by means of formula? suitable for calculation: --I. Stability of Position is insured when the moment of the force tending to overturn the mass above a given bed-joint does not exceed the moment of stability of the mass of masonry above that bed-joint. To express the moment of stability at a given bed-joint symbolically, it is necessaiy, in the first place, to determine the greatest distance to which the "centre of pressure" or "of resistance" at that bed-joint may deviate from the middle of the bed, without endangering the stability of the structure. Let q denote the greatest safe ratio of the deviation to the thickness of the masonry at the given bed-joint. In flying buttresses, and piers and abutments of arches and of frames, it is in general advisable to limit q according to the rule already given for rock foundations, Article 236, p. 378--viz., that there shall be no tension at any point of tfie bed, the pressure being supposed to be an uniformly varying stress. For various values of q, see Article 179, pp. 294, 295. The value of most common occurrence is that for sol...
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Add this copy of A Manual of Civil Engineering to cart. $30.01, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of A Manual of Civil Engineering to cart. $40.32, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
