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It was impossible on account of the girder. His hands groped over the fragments of wall, then they stiffened as it were in a mighty clasp over the debris, and he began to strike his forehead against the wreckage with a regular beat, and moaned: "Lord God, Lord God, Lord God." Thus he lay. In the course of a little while, he noticed that there was something standing beside him and touching him.
Amidships is the cabin space with sufficient room for a crew of twenty-five. Hammocks can be swung from the bridge girder before mentioned. 'In accordance with the latest Zeppelin practice, monoplane rudders and elevators are fitted to the horizontal and vertical fins.
Although the vibration of the structure, when a long length was supported on girders "C" resting on the permanent viaduct girders on the sides of the avenue, appeared to be considerable, not only vertically but transversely, very careful observation showed that the sag in the girder "C" due a live load of three elevated railway trains, one surface railway car, and one heavy truck, amounted to 1/8 in.
By varying the contents of the latter through the agency of a pump the tension of the gas in the lifting envelope can be maintained, and the shape of the inflated balloon preserved under all conditions. Beneath the gas-bag is a long strengthened girder, and from this in turn the car is suspended.
Just as the construction of an edifice must begin with the fashioning of the individual brick and bolt and girder, so the evolution of a biological association begins with the unitary organisms consisting of single cells, like Amoeba.
But the man who had crawled out on the shore end of the great cantilever bridge over the Ohio, and who had with his own hands practically set the last rebellious steel girder one hundred feet above the water level, had still some resources left.
It was on the day of repose, a Wednesday, that a doubt suddenly occurred to him as to the correctness of his answer, in the "Construction" paper, to a question which began with the following formidable words: "A girder, freely supported at each end and forty feet long, carries a load of six tons at a distance of six feet from one end and another load of ten tons " Thus it went on for ten lines.
Behind everything rose the black frame of the Kashi Bridge plate by plate, girder by girder, span by span-and each pier of it recalled Hitchcock, the all-round man, who had stood by his chief without failing from the very first to this last. So the bridge was two men's work unless one counted Peroo, as Peroo certainly counted himself.
A girder bridge with small independent spans on rocker piers would probably have been the most economical, even taking into account the great height of the piers near the middle of the ravine, but there would have been some difficulty in holding those piers in position until they could be secured to the girders at the top; and, moreover, such a structure would have been strikingly out of harmony with the character of the site.
The question was therefore reduced to the consideration of the kind of horizontal beam or girder to be employed. Horizontal girders are of three kinds. The Tubular is constructed of riveted rectangular boiler plates. Where the span is large, the road passes within the tube; where the span is comparatively small, the roadway is supported by two or more rectangular beams.
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