300 



INDEX 



Moment of inertia, Continuous beams 



with uniform, 13 

 Moment of inertia, Method of finding, 



66 



Moment of resistance defined, 62, 65 

 Moment of resistance of concrete 



beam, 74 

 Moments and shears in building 



frames, 260 



Moments, definition, 10 

 Moments in columns and girders, 259 

 Moments in inch and foot pounds, 



12 

 Moments on continuous beams, 



Church's method, 238 

 Moments on continuous beams, Du 



Bois' method, 238 

 Moments on continuous beams, Fid- 



ler's method, 238 

 Moments, Unbalanced, 53 

 Moving loads on girders, 34 



N 



Nails, Resistance of, 106, 138 

 National Lumber Manufacturers' 



Association, 80 

 Neutral axis in reinforced concrete, 



72 



Neutral axis, Position of, 63 

 Neutral plane, definition, 62 



Ordinate method for constructing 



parabola, 30 

 Overturning moment in bins, 288 



Parabola, Construction of, 28 



Parabola, Graphical method for con- 

 structing, 31 



Parabola, Ordinate method for con- 

 structing, 30 



Parallelogram of forces, 207 



Pearson's formula for wind pressure, 

 227 



Pin connections, 185 



Pin joints, Design of, 186 



Pins, carrying capacity, 187 



Plate connection, Knuckle, 204 

 Plate girder flanges, Spacing of rivets 



in, 115, 117 

 Plate girders, Cover plates and etif- 



feners for, 113 



Plate girders, Design of, 112 

 Plate, steel, Table of, 150 

 Point of contraflexure, 41, 46 

 Point of inflection, 41, 46 

 Point of reverse moment, 41, 46 

 Polygon of forces, 208 

 Portland Cement Association, 74 

 Posts and columns, Distinction be- 

 tween, 241 

 Pratt deck truss, 222 

 Pratt through truss, 221 

 Pratt truss, Development of, 121 

 Pressure against retaining walls, 289 

 Problems in design of beams, 85 

 Proportioning struts or compression 



members, 252 

 Purlins, definition, 23 

 Pythagoras, Rule of, 57 



Queen truss, 132 



Queen truss forces by graphic statics, 

 212 



R 



Radii of gyration, Approximate, 245, 

 250 



Reactions and wind stresses, Graphi- 

 cal method for finding, 229 



Reactions for continuous beams, 52 



Reactions on supports, 13 



Rectangular reinforced concrete 

 beams, formula, 74 



Reinforced concrete beams, 71 



Reinforced concrete beams, Failure 

 in diagonal shear of , 77 



Reinforced concrete chimneys, Thick- 

 ness of, 283 



Reinforced concrete design, Slide 

 rules for, 81 



Reinforced concrete footings, 268 



Reinforced concrete, Neutral axis in, 

 72 



