xii TABLE OF CONTENTS. 



Page 

 Art. 127. General Considerations Regarding Stresses 



in Simple Trusses 235 



"- 128. Position of Live Load for Maximum Chord 



Stresses 239 



" 129. Position of Live Load for Maximum Web 



Stresses 241 



" 130.. Stresses in a Pratt Truss by Coefficients 246 



tl 131. Stresses in a Simple Warren Truss 251 



" 132. Stresses in a Sub-divided Warren Truss 253 



" 133. Stresses in a Half Hip Truss 255 



" 134. Stresses in a Whipple Truss 256 



" 135. Stress Coefficients for a Double Intersection 



Warren Truss 257 



" 136. Stresses in a Baltimore Truss 260 



" 137. Stresses in a Camel Back Truss 268 



" 138. Stresses in a Pettit Truss. . , 277 



" 139. Skew Bridges 281 



Chapter XIII. Stresses in Railway Bridges from Wheel 



Loads 285 



Art. 140. Kinds of Stress 285 



" 141. Loading. ,.' 285 



" 142. Equivalent Loadings 2SG 



" 143. Preliminary Considerations in the Calculation 



of Stresses from Wheel Loads 2x7 



" 144. Position of Load for Maximum Moment at 



Any Point of a Truss or Girder '. 289 



" 145. Maximum Moment in a Deck Plate Girder. . . 291 

 " 146. Limits of Span for which a Particular Series 



of Wheel Loads will Give a Maximum 



Moment 292 



" 147. Position of Load for Maximum Web Stresses 



in a Truss , 293 



11 148. Particular Cases of the " Application of the 



Criterion for Maximum Web Stresses 294 



" 149. Maximum Shear in a Pratt Truss 294 



" 150. Fields of Shear in a Truss 295 



" 151. Position of Load for Maximum Shear in a 



Girder or Beam . . . 295 



