Straight and curved steel box girder bridges - Computational Analysis and Design of Bridge Structures - page 252

Table 8.2 Comparison of a straight box girder in beam model (twin bearings at all supports)

Support reactions in kip (kN) Moment due to DL in lb-in (kN-m) Bending stress in kip/in 2 (MPa)

Location DESCUS ANSYS Location DESCUS ANSYS Location DESCUS ANSYS

At support 1 205.3

(913)

217.07
(966)

M at 4 7.4E + 07

(8361)

7.7E + 07
(8700)

Top DL stress
at 4

−14.24
(−198.18)

−14.16
(−97.63)

At support 2 684.4

(3044)

715.71
(3183)

Bottom DL
stress at 4

9.55
(65.84)

10.266
(70.78)

At support 3 205.3

(913)

217.06
(965)

M at 10 −1.3E + 08

(−14688)

−1.37E + 08
(−15479)

Top DL stress
at 10

25.43
(37.44)

25.07
(172.85)

Bottom DL
stress at 10

−17.05
(−117.56)

−18.17
(−125.28)