Appendix 577
Hingeless parabolic arches
.f
=l
/
.^1
=^4
/.
Cross section of the arch uniform or slightly changing through the span:
A
B
C l
f
H
A
HB
RA
RB
M
B
M
A
Ta b l e A. 1 9
Reactions and bending moments due to different types of loads
Loading
R
A
H
M
A
M
B
M
C
1
P
l/^2
P^2
1564
Plf
Pl^32
Pl^32
(^364)
Pl
2
P
ul
P.1
u/
2 .1
C
2 u
/
154
Plf
(^2) u
.1
u/
2
Pl^2
u.1
u/
2 .2
5 u
/
Pl^2
(^2) u
.1
u/.3
5 u
/
u
0:5
Pl^4
(^2) u
.3
10
u
C
5 u
2 /
3
q
l/^2
1332
ql
ql
2
16f
ql
2
64
ql
2
64
0 (continued)