INDEX 



303 



Trusses, Cantilever, 235 



Trusses, Coefficient for, 122, 123 



Trusses, definition, 121 



Trusses, Intermediate joints in, 181 



Trusses, Locating joints in, 131 



Trusses of wood, Details for, 142 



Trusses, Ratio of depth to span in, 



130 

 T-flections, Method of finding section 



modulus, 66 

 Twelvetree's, W. N., rule for beams, 90 



Unbalanced moments, 53 



Unequal loading, 218 



Uniform and concentrated loads on 



beam on two supports, 20 

 Uniform stress in beams, 118 

 United States, Steel column formula 



used in, 248 



Unit moment of resistance, 74 

 Unit shear, 75 

 Upper chord, Design of, 162 



Vertical shearing stresses, 75 



W 



Wall and column footings, 266 

 Walls of bins or tanks, Friction of 



material on, 285, 287 

 Warren deck truss, 220 

 Warren through truss, 220 

 Warren truss, Stresses in, 128 

 Washers, Design of, 150 

 Water towers, Foundations of, 279 

 Water towers, Stress in, 278 

 Weight against tank walls, 287 

 West Coast Lumbermen's Associa- 

 tion, 80 



Wheel loads on girders, 36 



Wind, Action of, 10 



Wind bracing on columns and frames, 



256 



Wind force, 227 



Wind, Inclined reactions from, 228 

 Wind on a curved roof, 234 

 Wind pressure, Duchemin's formula, 



227 

 Wind pressure, Pearson's formula, 



227 



Wind stresses and reactions, Graphi- 

 cal method for finding, 229 

 Winslow's straight-line formula, 242 

 Wood beams, Stiff ness of , 101 

 Wood, Deflection of, 49 

 Wood, Fiber stresses in, 91 

 Wood screws, Resistance of, 138 

 Wood ties in framework, 138 

 Wood truss details, 142 

 Wooden beams, Maximum shear on, 



97 



Wooden beams, Shear in, 78 

 Wooden beams, Strength in shear, 



formula, 78 

 Wooden highway bridge, design of 



H. C. Lewis and E. R. Morton, 162 

 Wooden trusses, Secondary stresses 



in, 183 



Wrigley's Fink truss problem, 217 

 Wrought iron columns, 251 



Yellow pine, Fiber stress of, 104 

 Yellow Pine Manufacturers' Associa- 

 tion, 80 



Zero shear, Rule for locating point 

 of, 36 



