INDEX 



Abrasion test of stone, 269. 

 Absorption test of brick, 281. 



of stone, 275. 

 Angle of repose, 197. 



of shear, 112. 



of twist, 112, 113, 119. 

 Annealing, 12. 

 Annual rings, 282. 

 Answers to problems, 307, 308. 

 Antipole and antipolar, 65. 

 Arch, linear, 170. 



Arched ribs, continuous, fixed at ends, 

 190. 



graphical determination of linear 

 arch, 186, 191. 



method of calculating pole distance 

 of, 185. 



stress in, 182. 



temperature stresses in, 188, 194. 



three-hinged arched rib, 183. 



two-hinged arched rib, 183. 

 Arches. See Masonry arches. 



equilibrium polygon for, 162, 164, 



165, 166, 167, 168. 

 Area, contraction of, 14, 221. 

 Ash, strength of, 290, 292. 

 Average constants, 18, 19. 



Bald cypress, strength of, 292, 293. 



Bass wood, strength of, 290. 



Beams, bending moments, 36, 48, 49. 



built-in beams, 76. 



cantilevers, 55. 



cast-iron, ^!L > . 



Castigliano's theorem, 93, 94. 



continuous, 78, 94. 



deflection of, 73, 75, 78. 



designing of, 54. 



eccentric loading of, 63. 



effect of shear on elastic curve of, 76. 



elastic curve of, 34, 71, 74, 77, 79, 81. 



impact and resilience, 84. 



influence line for bending moment, 

 86. 



influence line for reactions, 91. 



influence line for shear, 88. 



limitation to Bernoulli's assump- 

 tion, 75. 



maximu m moments, 48, 50, 51 , 52, 53. 



Maxwell's theorem, 89. 



modulus of rupture, 234, 280. 



moment of resistance, 37. 



moments of inertia, 36, 41, 43. 



oblique loading, 62. 



of considerable depth, 111. 



principle of least work, 96. 



reactions of supports, 47, 50, 52, 53, 

 91. 



straight-line law, 35, 270. 



theorem of three moments, 80. 



vertical shear, 47, 56, 58, 60. 



work of deformation, 83. 

 Bearing power of soils, 195. 

 Beech, strength of, 290. 

 Behavior of iron and steel in tension, 222. 

 Belting, strength of, 304, 305. 

 Bending and torsion combined, 32. 

 Bending, cold, 231. 

 Bending moment defined, 36. 

 Bending moment and shear, relation be- 

 tween, 53. 

 Bending moment, maximum, 48, 50, 51, 



52, 53. 



Bernoulli's assumption, 34. 

 Bessemer process, steel manufacture, 239. 

 Black walnut, strength of, 290. 

 Box elder, strength of, 290. 

 Brick, absorption of, 281. 



compression of, 276, 277. 



flexure of, 280. 



manufacture of, 276. 



modulus of elasticity of, 278. 



rattler test of, 280. 

 Brick piers, strength of, 277. 

 Briquettes, cement, 250. 



compression of halves of, 252. 



molding and care of, 251. 



tensile strength of, 252. 



500 



