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allowed stress Ballast Floor beam bridges bending stress bolts bottom chord bracing cent center of gravity center to center compression members concrete connection angles connection plates cover plate cross section dead load stresses deflection designed diagonal diameter distance drawings Engineering Record equal eye-bars feet field rivets flange angles force formula gives highway bridges horizontal inch pounds inclined end post inertia joints lateral legs length less live and dead live load stress machine material maximum Milwaukee & St number of rivets panel piece plane plate girder bridge pounds per square pressure punch purlins radius of gyration reamed rivet holes Riveted Truss riveting machines rollers shearing stress shoe shop drawings spacing spans specifications splice square inches steel stiffeners strains Strength of Materials stress per square stringers structure surface templet tension members tests top chord total stress track transverse truss bridge vertical Viaduct weight width
Page 240 - Heads shall be made by upsetting, rolling or forging. Welding will not be allowed. The form of the heads will be determined by the dies in use at the works where the eye-bars are made, if satisfactory to the engineer...
Page 234 - Chemical determinations of the percentages of carbon, phosphorus, sulphur and manganese shall be made by the manufacturer from a test ingot taken at the time of the pouring of each melt of steel, and a correct copy of such analysis shall be furnished to the engineer or his inspector.
Page 241 - Steel work, before leaving the shop, shall be thoroughly cleaned and given one good coating of pure linseed oil, or such paint as may be called for, well worked into all joints and open spaces.
Page 231 - Pins shall be long enough to secure a full bearing of all parts connected upon the turned body of the pin. They shall be secured by chambered nuts or be provided with washers if solid nuts are used. The screw ends shall be long enough to admit of burring the threads.
Page 236 - Full-sized material for eye-bars and other steel i in. thick and over, tested as rolled, shall bend cold 180 degrees around a pin the diameter of which is equal to twice the thickness of the bar, without fracture on the outside of bend.
Page 242 - The manufacturer shall furnish all facilities for inspecting and testing the weight and quality of workmanship at the shop where material is manufactured. He shall furnish a suitable testing machine for testing full-sized members, if required.
Page 239 - If necessary to take the pieces apart for shipping and handling, the respective pieces reamed together shall be so marked that they may be reassembled in the same position in the final setting up. No interchange of reamed parts will be permitted.] 122.
Page 230 - Pin-holes shall be reinforced by plates where necessary, and at least one plate shall be as wide as the flanges will allow and be on the same side as the angles. They shall contain sufficient rivets to distribute their portion of the pin pressure to the full cross-section of the member.
Page 228 - Flange Rivets. — The flanges of plate girders shall be connected to the web with a sufficient number of rivets to transfer the total shear at any point in a distance equal to the effective depth of the girder at that point combined with any load that is applied directly on the flange. The wheel loads, where the tics rest on the flanges, shall be assumed to be distributed over three ties.