 | John Weale - 1843 - عدد الصفحات: 956
...nearly equal to |th of the span. The dotted lines in the figure show the dimensions of such a pier. The height of the pier being given, (as is commonly...obtain in the first case K='1489r, and in the second K=-\5r. If the span of each arch be the same, and r, and ra represent their radii respectively, then... | |
 | Henry Moseley - 1856 - عدد الصفحات: 742
...without being overthrown. In this case the breadth of the pier will be nearly equal to Jth of the span. The height of the pier being given (as is commonly...the pier to equal the radius of the arch. Solving the above equations in respect to a, we shall then obtain in the first case a = -2978r, and in the... | |
 | Philip John Davies - 1885 - عدد الصفحات: 810
...nearly equal to £th of the span. The dotted lines in the figure show the dimensions of such a pier. The height of the pier being given, (as is commonly...obtain in the first case K=-1489r, and in the second K=-\5r. If the span of each arch be the same, and r, and r, represent their radii respectively, then... | |
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... built so as to support the arch. If 2 K2--11832r2=0, or K='243r, then in either case the pier may be built to any height whatever, without being overthrown. In this case the breadth of the pier will be nearly equal to £th of the span. The dotted... 