Abstract
IN the final stages of his study of engineering design, the student has the rather difficult task of working out a complete scheme for the construction of a machine or structure in accordance with a given specification. It is as if a soldier who had mastered the art of local tactics were required to prepare a strategic plan and the complete tactical operations involved in it. It is at this point that the text-books are found lacking, for they seldom show any one design worked out to its last and minutest details. These notes on the design of a lattice girder bridge have been prepared for the guidance of engineering students in response to many requests for a book to give them a lead in the methodical preparation of designs. The particular bridge dealt with has a span of 156 ft. between bearings and the girders are of the Pratt type. It carries a single line of rails and is of the ‘through’ type. The assumption is that it is being designed for the Indian railways and it is therefore necessary to follow the British Standard Specification for Girder Bridges, the Bridge Rules of the Government of India Railway Department and its Schedule of Dimensions, while the impact allowance conforms to the Indian loading.
Instructions in Engineering Design
Vol. 2: Lattice Girder Bridge. By H. P. Philpot. Pp. viii + 223 + 4 plates. (London, New York and Toronto: Longmans, Green and Co., Ltd., 1939.) 10s. 6d.
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[Short Reviews]. Nature 145, 658 (1940). https://doi.org/10.1038/145658b0
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DOI: https://doi.org/10.1038/145658b0