Structural Optimization of Steel Cantilever Used in Concrete Box Girder Bridge Widening

Table 1

Steel cantilever mechanics parameter.

Load case	() (kNm)	(kN)	() (kN)	Cos θ	[] (MPa)	(m)	(m)
Dead load + live load	555.43	1430	252.92	0.25	22.4	1.226	Lower limit 0.19
Self-weight	181.95	1430	85.98	0.25	22.4	1.226	Upper limit 0.32