98 INDEX 



REFERENCES ARE TO PARAGRAPHS, NOT PAGES 



reinforced concrete, maxing by ma- 

 chine, 313, 331 

 normal concrete, 348, 375 

 other concretes, 349, 376 



" steels, 349 

 permits, 388 

 placing of concrete. 333 

 " " forms, 326 

 " " reinforcement, 328 

 preparations of plans, 324 

 proportions, 373 

 removal of forms, 335 



" "old structures, 386 

 resisting moments, 345 

 safeguards, 389 

 sand for. 367 



spacing of reinforcement, 358 

 special reinforcement. 355 

 splicing of reinforcement, 356 

 stone for, 369 

 temperature stresses, 347 

 testing the structure, 384 

 traction force, 339 

 unit of measure, 374 

 unit stresses, 348 

 water for, 372 

 waterproofing of, 360 

 web reinforcement, 355 

 weatherproofing of, 361 

 wind pressure, 337 

 workmanship, 379 

 removal of old structures, 257, 386 

 requirements, schedule of, 176, 193 

 reversal of stresses, 16, 74 

 riveted work, 90, 137 

 rivet holes, 210 

 riveting, 219 

 rivets, 33, 87, 138, 170 



, edge distance of, 35, 140 



, field, 217 



, how driven. 216 



in flanges, 164 

 , size of, 215 

 , spacing of, 34, 139, 171 

 rods, 38, 95 



rollers, expansion, 13, 48, 69, 228 

 roof, bracing of, 25 

 " covering, 3 

 " , design of, 22 

 " load, 8 

 " , pitch of, 24 

 roof trusses, spacing of, 23 

 " > weight of, 5 



SAFEGUARDS and damages, 261, 

 389 



sand, 308, 367 

 scantling, 273 



schedule of requirements, 176, 193 

 screw threads, 230 

 shingles, 269 

 shipping details, 235 



11 invoices, 246 

 shop inspection, facilities for, 241 



" plans, 245 

 shops, access to, 243 



' ' . starting work in, 242 

 skew-plate girder bridges, 158 

 snow load, 6 

 soil, pressure on, 20 

 spacing of rivets, 34, 139 

 specimen, annealed, 183 



, form of, 182, 196 

 splices in flanges, 162 

 " "plates, 222 

 " " web, 166 

 stamping, 186 

 steel cast, 70, 233 



cold-twisted, 193 

 hard-grade, 193 

 structural, 175-189 



-grade, 193 

 trestles, 84, 132 

 stiffeners, web, 167 

 stone, 309, 369 

 straightening material, 203 

 stresses alternate, 122 



combined, 14, 71, 124 

 counter, 123 

 eccentric, 15, 72 

 maximum, 73 

 reversal of, 16, 74 

 stringers, in trestles, 287 

 structures, all, 86, 133 

 sub-punching, 212 

 surfaces, condition of, 252, 

 " , inaccessible, 251 

 1 ' , machine-finished, 253 



rpiEMFERATURE, 47, 104, 152, 174, 

 347 



tension members, 36, 93, 141 



testing the structure, 384 



tests, bending, 179 

 11 , eye-bars, 248 

 " , number of, 184, 197 

 " , to prove workmanship, 247 



