Page 145 - Handbook of Materials Failure Analysis
P. 145
4 Current Analysis and Design Methods 141
qr
l – g
2
c L
Sleeper
qr
Contact pressure (Pa)
l - g
(a) Upper bound solution
qr
l – g l – g
c L
Sleeper
qr qr
2 2
Contact pressure (Pa)
l - g
(b) Less conservative solution
(l – g - j)
(l – g - j) j j
2 4 4 2
qr qr qr
2 2 c L
Sleeper
qr j qr
2 2
Contact pressure (Pa)
l - g
(c) Solution for sleepers fitted with bearing plates
FIGURE 6.15
Pressure distributions for the calculation of design bending moment at rail seat [40–41].
(a) Upper-bound solution. (b) Less conservative solution. (c) Solution for sleepers fitted with
bearing plates.
