Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam

Table 2

The moments of the vertical beam obtained by two methods under different grades of anchoring force.

Anchoring force (kN)	Moment of the anchoring force action section (kN·m)			Moment of the midspan section (kN·m)
	Traditional method	Transformed section method	Difference	Traditional method	Transformed section method	Difference
50	6.63	7.07	0.44	−2.55	−2.84	−0.29
100	13.26	14.14	0.88	−5.11	−5.69	−0.58
200	26.52	28.28	1.75	−10.22	−11.37	−1.15
300	39.79	42.42	2.63	−15.33	−17.06	−1.73
500	66.31	70.69	4.39	−25.54	−28.43	−2.88
800	106.10	113.11	7.02	−40.87	−45.48	−4.61