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| J.A.L. Waddell — INDEX — Bridge Engineering |
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WWaddell, J. A. L. formula for impact, 122 Waddell, Montgomery, types 711, 712, 715 Waddell, N. Everett, 783, 1893 Waddell, R. W., 1893 Waddell & Harrington bascule, 709-711 Wages, rates of, 1756 Wagner, Samuel Tobias, 351 Wagons, weights of, 118 Waikato River Arch Bridge at Cambridge, New Zealand, 630, 638 Waikato River Arch Bridge at Hamilton, New Zealand, 627, 629, 638 Wakefield sheet piling, 975, 1013 Walker, W. R., 76 Walkways, 361 Walkways and stairs, 1734 Walls, double-shaft piers, 1052 footings, 837 calculation of stresses in, 861 designing of, 939 retaining, 1031, 1032. See Retaining walls. Wandipore, Tibet, cantilever bridge, 7 War Department, approval of bridge plans, 1140 requirements for clear headway, 1143 requirements for openings of movable spans, 1143 War, effect of upon contracts, 1562 Warning contractors, 1615 stress coefficients, 172-174 Wash borings, 1093 equipment for, 1094 Washing of sand, 1044 Washout, danger of, 749 Washout of falsework, 1201 Watchman for boring outfit, 1105 Water, weight of, 96 Water-jets, 1015 driving piles, data for, 1018 nozzles for, 1018 Water-pipes, carrying of, 1076, 1843 Waterford Bridge over the Hudson, 19 Waterway, areas, determination of, 1109 example of, 1122 formulae, 1113 Wattled piling, 1063 Wave action, 1059 Wayss, 18 Wearing floor, 366 Wearing of joints in pin-connected bridges, 749, 750 Wearing surfaces, asphalt pavement, 1814 plank floors, 366 wood-block floors, 368 Web, compound, 500 dumb-bell piers, 1052 plates, plate-girders, 419-421 design of, 419-421 splices, 420 stress distribution, 420 splices, plate-girders, 301, 447-452 design, 450-452 types, comparison of, 447-449 thickening of, 333 Web reinforcement for reinforced-concrete constructions, 962 Wedges for swing spans, 696, 1717 machinery for, 1724 Weekly charts of progress, 1486 Weekly reports, 1486 Weepers, 1032 Weights, asphalt pavement, 95 brick pavement, 95 bridges, illustrative examples for finding, 1292 broken stone, 96 cattle, 117 compacted stone, 96 concrete, 95 deformed bars, 799 details of steel bridges, 283 earth, 96 material in stiffening trusses of suspension bridges, 656, 657 materials, 1649 member, bending due to weight of, 205, 252 metal, computation of, 1377 metal, estimates of, 279 metal in cantilever bridges, 581-583 nickel steel in bridges, 61 people, 108 permissible variation in, 1779 rails, 95 road rollers, 118 round and square bars, 799 steel, 96 steel cables, 96 steel superstructures. See Weights of steel superstructures, carbon steel and nickel and alloy steels. swing spans, 698 tenders, 100 timber, 95 traction engines, 118 truss members, bending due to weight of, 1661 wagons, 118 water, 96 Weights of steel superstructures—carbon steel, arches, plate-girder arch ribs—author's formulae, 639 open-webbed riveted—author's formulae, 641 open-webbed riveted—Kunz's formula, 642 cantilevers—double-track railway, trusses and lateral systems of cantilever arms and anchor arms, 583 type "A." (See page 1271.) floor system, laterals, and on piers, 1272 pin-connected spans—trusses and total metal, 1275 riveted spans—trusses and total metal, 1273 type "B." (See page 1271.) floor system, laterals, and on piers, 1277 pin-connected spans—trusses and total metal, 1279 riveted spans—trusses and total metal, 1278 type "C." (See page 1271.) floor system, laterals, and on piers, 1280 pin-connected spans—trusses and total metal, 1282 riveted spans—trusses and total metal, 1281 type "D." (See page 1271.) floor system, laterals, and on piers, 1283 pin-connected spans—trusses and total metal, 1285 riveted spans—trusses and total metal, 1284 I-beam spans, single-track railway, 1220 lacing, angle, 288 bar, 287 pin-connected through trusses, metal on piers, 1257 Petit trusses, one truss, 1256 Pratt trusses, one truss, 1255 railway, double-track, Petit trusses, floor system, laterals, and on piers, 1247 trusses and total in spans, 1248 Pratt trusses, floor system, laterals, and on piers, 1244 trusses, 1245 total in span, 1246 railway, single track, floor system, 1233 laterals and on piers, 1223 Petit trusses—trusses and total in span, 1236 Pratt trusses—trusses, 1234 Pratt trusses—total in span, 1235 plate-girders, deck, single-track-railway—total in span, 1221 half-through, double-track, railway—total in span, 1237 half-through, single-track-railway—total in span, 1222 riveted end-connections, one girder, 1250 riveted, deck, single-track-railway Pratt trusses, 1253 details, 1225, 1239 floor system, 1229 laterals, 1230 metal on piers, 1230, 1257 total in span, 1232 trusses, 1231, 1253 riveted through trusses, details, 1225 on piers, 1257 light highway—one truss, 1254 Petit trusses—one truss, 1252 Pratt trusses—one truss, 1251 railway, double-track, Petit trusses, floor system, laterals, and on piers, 1242 trusses and total in span, 1243 Pratt trusses, floor system, 1238 laterals and on piers, 1239 total in span, 1241 truss details, 1239 trusses, 1240 railway, single-track, floor system, 1224 laterals and on piers, 1223 Petit trusses—trusses and total in span, 1228 Pratt trusses—trusses, 1226 Pratt trusses—total in span, 1227 truss details, 1225 suspension bridges, stiffening trusses, 651, 652, 654 floor system, 653 swing spans, 1242-1249 trestles, electric railway, approximate method, 1269 double-track-railway, approximate method, 1266 single-track-railway, type I. (See page 1258.) girders and girder bracing, 1258 total for economic layouts, 1262 tower bracing, 1260 tower columns, 1261 type II. (See page 1264.) girders and girder bracing, 1264 one bent, 1265 one tower, 1266 total for economic layouts, 1270 towers and bents, 1267-1269 transformation formulae floor system, 1286, 1288 lateral system, 1283, 1289 trusses, formulae for weights, 1287 variation in loadings, 1287, 1288 variation in material, 1288-1291 variation in span length, 1286, 1291, 1292 variation in unit stresses, 1288-1291 Weight of steel superstructures—nickel steel and alloy steel, cantilever bridges, double-track railway—total in bridge, 63, 80 probable total for very long spans, 67 single span bridges, double-track-railway, transformation formulae. See Weights of steel superstructures—carbon steel. Wellington's pile formulae, 1009 Wells, filling of, 996 Wells of caissons faces of, 987 Wentworth's formula, 1113 Wernwag, 15 Westminster Bridge, 12 Weston, C. V., 567 Weyrauch, 15 Wheeling suspension bridge, 21 Wheel-load method of stress computation, 160, 161 origin of, 23 White, H. F. 971 White and Hazard, 21 Wide-legged connecting angles, 209 Wide plates, extra cost of, 327 Widths, arches, 637 bridges, standard, 332 cover-plates, 498 minimum for cantilever bridges, 570 Wilkinson, 18 Willamette River Lift Bridge, Portland, Ore., 495, 724, 725 lowering caissons of, 1067 Williams, J. P. J., 215 Williot diagram, 182, 187, 220, 239, 243, 245, 246 Williot-Mohr diagram, 239, 245, 246 Wilson, W. N., 217 Wind loads, 149, 956, 1651-1653, 1688, 1689 bascules, 155 combined highway and railway bridges, 152, 154 highway and electric-railway bridges, 152, 1652 indirect, 1652 intensities of working stresses for, 262 movable bridges, 154 railroad bridges, 1651 reinforced-concrete bridges, 956 swing spans, 154, 1688, 1689 vertical lift bridges, 155 Wind pressure, formula for, 149, 150 inclined surfaces, 150 Wind stresses, 152, 1376 Wing abutments, volumes of, 1314-1317 Winner Bridge, 723 Wire, 50 mesh, 769 netting, 769 bending stresses in, 311, 1712 cables for swing spans, 1718 tables of, 310-313 Wiring, 1706 for electric power, 1795 Withdrawal of tender, 1881 Witness to signatures, 1886 Wolfel, Paul L., 203, 327, 339, 596, 614 bases, 368 cushions, 368 fillers, 368 floor systems, 773 renewals, 775 Wooden caissons, designing of, 1004 Wooden piles and pile driving, 1855 Wooden trestles, 536, 772, 773, 776 costs, 777 railway, origin of, 27 Work, foreign countries, 1583 other contractors, 1765 starting of, 1884 Work done, valuation of, 1480 Working chamber, 1048 batters, 988 roof, 1048 stepping off, 988 Working drawings, 1380, 1759 Working stresses. See also Tables for designing. diversities in, 260 intensities of, 120, 255, 261, 1654-1656 machinery, 1709 nickel steel, 262 reinforced-concrete, 264 reinforced-concrete bridges, 957 substructure materials, 263 Work-shop trusses, cantilevers for, 569 Workmanship and materials, 1762 electrical, 1792 inspection of, 1412 Worm gears, 1727 Wornall Road Bridge, Kansas City, 1169 Worthington, Charles, 622, 623 Wrought iron, 49 effect of on bridge construction, 13 intensities for, 257 Wünsch, 18 |