Modern buildings : their planning, construction and equipment (1905)
Middleton, G. A. T. (George Alexander Thomas) · London : Caxton Publishing Company, Limited · leaf 81
Beams and Bending Moments quired stress diagram.1 The closing of the polygon KNP Fig". 65 shows a simple method of describing a parabola. Its height is set up at CD, and EDF is drawn parallel to AB, and AE and BF are drawn perpendicularly to it. AE, ED, DF, and FB are each divided into an equal… … the required curve being given by the intersection of these lines. Turning back to “ L ” in Fig. 64, it was here neces- sary to draw a curve cutting off vertical ordinates to the slanting line AB, of lengths equal to those of ordinates to a parabola on a horizontal base, as shown in a dotted line.…
Building · Architecture
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