CHAPTER VI. 
Moving Load. 
GENERAL SPECIFICATIONS. 
The moving load for eacli track is to consist of two engines, 
whose weights and distribution of same are given in the accompany- 
ing diagram 
followed by a train of cars whose weights per lineal foot of track 
are to be taken from the following table 
Span 
Live Load per lineal foot. 
Under 15c/ 
1200 pounds. 
From 150’ to 200 ， 
1150 ,， 
，, 20 0， to a5<y 
1 100 ,, 
„ 2 ^ 0 f tO 30C/ 
1050 ，， 
To simplify calculation spans from twelve (12) to sixty (60) 
feet may bo calculated for tlie uniformly distributed loads given in 
the following table 
Span. 
Unif. Load. 
Span. 
Unif. Load. 
12, to i8 f 
4200 pounds. 
Ilf and 34^ 
34CO pounds. 
19, and 20， 
4100 ゎ 
35 r » 3 6 ' 
3 300 >1 
2V „ 22 1 
4000 ” 
3 / ，， 3 か 
3200 ” 
23， ，， 24， 
3900 ,, 
39% 4〇, and 4V 
1 100 ” 
s6 r 
3800 ，， 
4 A 4 ダ，， 44 ， 
3000 f > 
37 °° ，， 
45 ', 46' ,， 47 f 
2900 ,» 
29’ ” 3 0 ， 
3600 ，， 
48', 49， ，， 5 〇， 
a 800 ，， 
ii 
35 °° ，， 
5 1， to 60’ 
2700 n 
