Tag Archive for Tag: Bearings

Tag: Bearings Map projections

9.1 Categories and properties of projections Chapter 8 has shown that it is useful to express the 3D positions of points near the earth’s surface in terms of latitude, longitude and height above an ellipsoid of defined shape. This system gives a precise and straightforward definition of any point’s location, in terms of parameters (east, north and up1) which are

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Tag: Bearings Characteristics of Plate-Girder Stringer Bridges

For simple or continuous spans exceeding about 85 ft, plate girders may be the most economical type of construction. Used as stringers instead of rolled beams, they may be economical even for long spans (350 ft or more). Design of such bridges closely resembles that for bridges with rolled-beam stringers (Arts. 12.1 and 12.2). Important exceptions are noted in this and following articles. The

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