— - 253 — 
® x Pansion joint, 55. 
Mansion rollers, 55, 66, 76, i?r, 208. 
pension plates, 54, 73, 141, i 74 , 2〇5 . 
^-bar heads, 75 , !8 7 . 
軋 yes， 75 . 
falsework, 224. 
Rework pillars, sizes of. Table XXIV. 
‘•“ 呢出叩， 5 , 77 , 114, 147 . 
Plates, S 5 > 74 . 
p： Ue ^ 76 , I75 . 
^al order bill, 21I . 
卜 3 , 57 , 74 , 75 , 【“• 
: l ラ ges, function of, 74, m 
* l % sections of, ig, 19, 22, 40. 
^weights of, 37 . 
り beam connection to stringers, 57, 75, 125. 
卜 W: 4 . 
earns in deck bridges ， 57. 
J1 beams in double track bridges, 124. 
j,) 001 " beams details for, 74> 
於 こ w beams limiting depths for, 75. 
j,, Jrs ystem, i 2Ij 
PoT T tem proper, 59 " 
j, tplank s. 59 - 
卿 m 叫 ねい 巧. 
^«laf 01 . C0lurnn3> 7a 
f ° 1 ' flan Sea of floor beams, 1 24. 
IV 〜 ラ ‘“ 01 ’ 忍⑽ぱ辟 of stringers or <yir<ler.>, 122. 
，叫. 
^ lln ,? U ° f rivette(1 plates, rij. 
0ns of webs and flanges, 74, 122. 
I Beams, 16, 17, 19, 22, 25, 26, *29, 53, 34, 35. 
Imperfections of lattice girders, 7. 
Inclinations of lattice and lacing bars, 7 2. 
Inclined end posts for deck bridges, 52. 
Inclined stiffening angles for plate girders, 51. 
Increment of panel length in top chord?, 186. 
Indirect transference of stress by rivets, 114. 
Indirect wina pressure stresses, 86, ico, lor, 107. 
Induced stresses, 77. 
Initial tension, 68, 107, 10 8, 111, 115. Table VI. 
Inspection of bridgos, 234. 
Inspector’s dimensions, 200. 
Intensity of bearing stress, 71, 129. 
Intensity of bending stress, 71, 109. 
Intensity of compressive stress, 70. 
Intensity of tensile stress, 70, 71. 
Intermediate strut connection, 56, 141., 172. 
Intermediate struts, 5*2, 107. 
Iron, bills of, 149, 177. 
11.0 n, cast, 77. 
Iron, cost of, 9, 15-2. 
Iron joists, 16, 17, 19, 22, 25, 26, <29, 33, 34, 35. 
Iron weights of, 83, 241. Table I. 
Japanese bridges, criticism of present, 5. 
Japanese bridges, weights of present, 7. 
Japanese engines, 8r. 
Jaws, 55, 56, 77, i + r, 173, l 74 , 20 5 , ^° 6 - 
Joints in bottom chord struts, 54, 169, 204. 
Joint., sliding expansion, 55. 
Joints, top chord, 53, 140， 168, 204. 
Joists, 16, J 7, 19, 22, 25, 26, 29, 33, 34, 55 , 22 7 > 
> Of track, 9 . 
^al descril)tion5i _ 
QiriT j Pe °| ficaUons> 6 >' 
二. 
Wg diagonals, 55< I20 . 
d ? Üedl . iVer ，叫 
甘: 4: r 〜 5 ,办 
C?to U l lllUtS，taWe0f * ' 95 ' 
l89 . 
Hip n ，on * 53 , 140. 168, ao + . 
Hip vertiTaT^ 11011 10 lateral rod , 5… 
55, 70, 7i,3„8 9 , 9 〇 , ,, 
228. 
Knees or Knee braces, 56, 77, 109, 143, *208. 
Labour in erecting, 2-21. 
Labour in framing, 151. 
Lacing bars, 72, 142, 175. Table XXI. 
Lateral pins, sizes of, 206, 207. 
Lateral rod connection, 56, 141. 
Lateral rods, 53, 56, 69, 116, [60, 161. Table 
XIII. 
Lateral strut connection, 55, 69, 173, *205. 
Lateral strut も 51, 69， 16 0, 161. Table XIH. 
Lateral systems, 52, 69, 104, 1 16, 160, 16 し 
Table XIII. 
Lattice bara, 72, 142, 175. 
Lattice girders, imperfections of, 7. 
Least diameters for pins, 76, 130, 206, * 207 * 
Lengths, limiting, 45. 65, 66. 
Lengths of diagonals, 180. 
