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

Table 2

Midspan deflections of the single box and single cell simply supported composite box girders 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	17.6 kN	1.705	1.803	0.004	0.117	1.924	1.743
	35.2 kN	3.325	3.606	0.008	0.234	3.848	3.485
	63.2 kN	6.140	6.475	0.014	0.420	6.909	6.258
	71.2 kN	7.405	7.294	0.016	0.474	7.784	7.498
Uniform load	2.250 kN/m	1.330	1.152	0.002	0.061	1.215	1.342
	3.938 kN/m	2.225	2.017	0.004	0.105	2.126	2.349
	5.625 kN/m	3.185	2.882	0.005	0.151	3.036	3.356
	7.500 kN/m	4.335	3.842	0.007	0.199	4.048	4.474