Analysis of Pure Bending Vertical Deflection of Improved Composite Box Girders with Corrugated Steel Webs

Table 1

Midspan deflections of the single box and single cell continuous composite box girder with CSWSB (unit: mm).

Working condition	Load amplitude	Measured value	Theoretical values calculated in this work				Finite element value
			Theoretical deflection of primary beam	Shear lag-induced deflection	Shear deformation-induced deflection	Total deflection
Concentrated load	8.35 kN	0.090	0.047	0.001	0.017	0.065	0.072
	16.7 kN	0.144	0.093	0.002	0.034	0.129	0.144
	30.7 kN	0.220	0.171	0.003	0.064	0.238	0.265
	34.7 kN	0.274	0.194	0.003	0.072	0.269	0.289
Uniform load	0.549 kN/m	0.026	0.007	0.000	0.003	0.010	0.013
	2.636 kN/m	0.058	0.034	0.001	0.018	0.053	0.065
	4.724 kN/m	0.108	0.061	0.001	0.031	0.093	0.116
	8.224 kN/m	0.175	0.105	0.002	0.055	0.162	0.182