CHAPTER VIII.

88. The Truss Element or Triangle of Bracing 100 89. Simple Trusses 101 90. The Pratt Truss Type 102 91. The Howe Truss Type 105 92. The Simple Triangular Truss 106 93. Through- and Deck-Bridges 108 94. Multiple Systems of Triangulation 108 95. Influence of Mill and Shop Capacity on Length of Span 109 96. Trusses with Broken or Inclined Chords 109 97. Position of any Moving Load for Greatest Webb Stress 110 98. Application of Criterions for both Chord and Web Stresses 111 99. Influence Lines 112 100. Influence Lines for Moments both for Beams and Trusses 113 101. Influence Lines for Shears both for Beams and Trusses 115 102. Application of Influence-line Method to Trusses 118