Full-Scale Experimental Investigation of the Static and Dynamic Stiffness of Prestressed Concrete Girders

Table 4

Experimental data for girders subjected to cycles of static loading.

Girder	Experimental parameters	D0/LC0	D1/LC1	D2/LC2	D3/LC3	D4/LC4
Z1	(kN)	120	560	820	1160	1240
	deflection (mm)	5.0	35.78	97.54	150.49	164.62
	Crack width (mm)	0	0.31	0.65	0.99	1.20
Z2	(kN)	72	520	840	1190	1190
	deflection (mm)	3.2	48.48	108.22	182.89	184.25
	Crack width (mm)	0	0.38	0.74	1.13	1.33
B1	(kN)	51	580	920	1190	1400
	deflection (mm)	2.2	41.65	98.79	141.74	175.42
	Crack width (mm)	0	0.39	0.70	1.04	1.25

D₀ is in the elastic stage for the test girders.