Analysis of a T-Frame Bridge

Table 1

Moment under design live load (control sections of 1# grillage/N·m).

Section location	Trailer 120 max/min	Truck 20 max/min	Control moment
Pier (14#)	0/0	0/0	0/0
0.5 L	3.9𝐸 + 6/−2.4𝐸 + 4	2.9𝐸 + 6/−3.1𝐸 + 5	3.9𝐸 + 6/−3.1𝐸 + 5
Corbel	0/0	0/0	0/0
Pier (15#)	0/−3.5𝐸 + 7	0/−4.1𝐸 + 7	0/−4.1𝐸 + 7
Corbel	0/−5.6𝐸 + 3	0/−1.1𝐸 + 4	0/−1.1𝐸 + 4
0.5 L	4.2𝐸 + 6/−2.4𝐸 + 4	3.2𝐸 + 6/−3.3𝐸 + 5	4.3𝐸 + 6/−3.3𝐸 + 5
Corbel	0/0	0/0	0/0
Pier (16#)	0/−3.5𝐸 + 7	0/−4.1𝐸 + 7	0/−4.1𝐸 + 7