298 



INDEX 



Fiber stresses in wood, 91, 164 



Fiber stress of yellow pine, 104 



Fink trusses, 134, 214 



Fink truss problem, Wrigley's so- 

 lution, 217 



Fish-plate splice, 153 



Flexure in pins, formula, 186 



Flexure stress due to eccentric load- 

 ing, 254 



Flitch plate girders, 111 



Floor, Area of, served by interior 

 columns, 262 



Floor, definition, 123 



Floor, Description of laminated, 98 



Floors, Design of, 88 



Fluid weight, 291 



Foot pounds, definition, 12 



Footings, Attaching column bars to, 

 275 



Footings, Cantilever, 277 



Footings, Designing, 266 



Footings, Distributed loads on, 262 



Footings, Eccentric loads on, 271 



Footings, Reinforced, 268 



Footings, Wall and column, 266 



Force, Triangles of, 62 



Forces, Parallelogram of, 207 



Forces, Polygon of, 208 



Forces, Triangle of, 208 



Formula for self-supporting steel 

 stacks, 282 



Formulas, definition, 9 



Foundations of water towers, 279 



Foundations under columns, 276 



Frame, stress at any point, 58,60 



Framed structures, Effect of faulty 

 design, 196 



Frames are forces, 56 



Frames with inclined struts, 57 



Free designing, 53 



Friction in riveted joints, 189 



Friction of material on walls of bins 

 or tanks, 285, 287 



Girders, Flitch plate, 111 

 Girders, Moving loads on, 34 

 Girders, Wheel loads on, 36 

 Graphical method for constructing 



parabola, 31 

 Graphical method for finding wind 



stresses and reactions, 229 

 Graphical methods for moment and 



shear in beams, 14 

 Graphic statics, 207 

 Graphic statics, King truss forces by, 



210 

 Graphic statics, Queen truss forces 



by, 212 

 Gusset plates and brackets, 259 



Hammer beam truss, 226 

 Hangers and stirrups, 293 

 Heel, Roof truss, 203 

 Hog back truss, 224 

 Hoppered bottoms in bins, 288 

 Horizontal force acting on column, 



275 



Horizontal shearing stresses, 75 

 Howe truss, Development of, 123 



Impact, definition, 210 



Inch and foot pounds, Moments in, 



12 



Inch pounds, definition, 12 

 Inclined reactions from wind, 228 

 Inertia, Moment of, 66 

 Inflection, Point of, 41, 46 

 Interior columns, Area of floor served 



by, 262 



Intermediate joints in trusses, 181 

 Intermediate joints, Methods of 



framing, 182 

 Internal forces and resisting moment, 



56 

 Internal forces, definition, 56 



Girder, definition, 23 

 Girders and trusses, 102 

 Girders, Crane loads on, 36 



Joint, Angular Displacement of, 197 

 Joint details for trusses of wood, 142 

 Joints and fastenings, Designs for, 143 



