Bending Performance of Prestressed Continuous Glulam Beams

Table 5

Summary of different steel bar quantity and ultimate bearing capacity of prestressed beams.

Group prestressing force (kN)	Beam no.	Reinforcement ratio (%)	Bearing capacity (kN)
			Test value (kN)		Average (kN)	Improvement rate (%)
			Left span	Right span
0	LA1(1)	0.96	72.85	63.03	61.33	—
	LA1(2)		59.62	61.96
	LA2(1)	1.92	82.47	90.35	79.36	29.4
	LA2(2)		78.97	76.25
	LA3(1)	2.88	86.75	85.1	81.45	32.81
	LA3(2)		90.15	77.8
7	LA4(1)	0.96	66.53	71.39	67.55	—
	LA4(2)		71.39	68.57
	LA5(1)	1.92	88.99	87.53	81.26	20.3
	LA5(2)		78.87	74.99
	LA6(1)	2.88	95.21	94.92	88.16	30.5
	LA6(2)		81.4	82.96
14	LA7(1)	0.96	66.82	66.82	67.65	—
	LA7(2)		68.96	68.47
	LA8(1)	1.92	88.01	87.62	84.51	24.92
	LA8(2)		84.03	81.4
	LA9(1)	2.88	97.74	98.22	92.25	36.36
	LA9(2)		86.75	88.11