210 



RESISTANCE OF MATERIALS 



Lamp's formulas for thick cylinders, 



120 

 Lime, 157 



Maxwell diagrams, 190 

 Modulus of elasticity, 4 



of resilience, 8 



of rigidity, 5 



of shear, 5 



Moment, definition of, 15, 176 

 Moment of inertia, 25 



for circle, 28 



for composite figures, 29 



for rectangle, 26 



for triangle, 28 



theorems on, 27 

 Moment of resistance, 52 

 Moment and shear diagrams, 37 



directions for sketching, 44 



properties of, 43 



relations between, 41 

 Moment solid, 26 

 Moments, in continuous beams, 77 



fundamental theorem of, 15 

 Mushroom system of reenforced- 

 concrete construction, 167 



Neutral axis, 50 



Nichols's formula for flat plates, 145 



Poisson's ratio, 9 



Portland cement, 156 



Power transmitted by shafts, 108 



Quicklime, 156 



Radially reenforced flat slabs, 167 

 Rankine's column formula, 95 

 Rankine's formula for shafts, 109 

 Reenforced concrete, 156 

 Reenforced-concrete beams, design of, 



159 



Reenforced-concrete columns, 164 

 Reenforcement, calculation of, in reen- 



forced-concrete beams, 162 

 Resilience, 8 



of shafts, 110 

 Resistance, moment of, 52 

 Restrained beams, 80 

 Resultant, 16 

 Rivet pitch, 150 

 Riveted joints, 146. 



efficiency of, 146 



Settlement of supports, effect of, 76 

 Shafts, angle of twist in, 107, 112 



elliptical, 111 



power transmitted by, 108 



rectangular, 111 



resilience of, 110 



square, 111 



stress in, 106 



triangular, 112 

 Shear, 2 



angle of, 106 



in continuous beams, 78 



vertical, 36 

 Shear modulus, 5 

 Shrinkage and forced fits, 129 

 Simple beams, deflection of, 65 

 Slag cement, 158 



Specifications for structural steel, 150 

 Spheres, thin, stress in, 118 

 Spider, dimensions of, 174 

 Spider hoops, 168 

 Static moment, 15 

 Stirrups in reenforced-concrete beams, 



162 



Straight-line law, 50 

 Strain, definition of, 1 



varieties of, 2 

 Strain diagram, 4 

 Stress, definition of, 1 



in beams, 50 



unit, 4 



Stresses, in structures, 185-194 

 Structural-steel riveting, 149 

 Structures, stresses in, 176, 185-194 

 Struts, 191 

 Symmetry, axis of, 24 



Temperature stress, 9 



Tension, 2 



Theorem of three moments, 70 



Three moments, theorem of, 70 



Thurston's formula for flat plates, 145 



Torsion, 3, 106 



Twist, angle of, 106 



Ultimate strength, 5 



Unit deformation, 4 



Unit stress, 4 



Unit stresses in structural steel, 150 



Web reenforcement in reenforced- 

 concrete beams, 162 

 Working stress, 6 



Section modulus, 52 

 Sections, method of, 190 



Yield point, 5 



Young's modulus of elasticity, 4 



