6.13 Winkler–Bach Theory
193
Table 6.1
Value m
for various shapes of cross-section
Cross-section
Formula for ‘m’
A
C
R
C
R
m
= −1 + 2
R
C
2
− 2
R
C
R
C
2
− 1
B
C
R
C
1
m
= −1 +
2R
C 2
−C 2
1
R 2
− C 2
1 −
√
R 2
− C 2
C
R
b
h
b
1
C
1
C
m
= −1 +
R
Ah
[b
1 h
+
(R + C
1
)(b − b
1
)] ln
R+C1
R−C
−
(b − b
1
)h
For Rectangular Section: C
= C
1 ; b
= b
1
For Triangular Section: b
1
= 0
(continued)