Prestressed reinforcement is defined using the following parameters. It is also important to select the bar type to get the correct geometrical properties.

f_yk: Characteristic yield stress [MPa]

f_uk: Ultimate tensile strength [MPa]

E_sk: Ultimate tensile strength [MPa]

ε_ud: Elongation of reinforcement at maximum load [-]

ε_limit: Limit elongation [-]

γ_s: Partial factor for steel materials [-]

Bar type

For prestressed reinforcement of Wire and Single wire types, it is possible to set a reinforcement diameter of the following dimensions:

• 6.90 mm (Area: 29 mm²)
• 7.00 mm (Area: 30 mm²)
• 8.00 mm (Area: 38 mm²)
• 9.00 mm (Area: 50 mm²)
• 9.30 mm (Area: 52 mm²)
• 9.60 mm (Area: 55 mm²)
• 11.00 mm (Area: 70 mm²)
• 11.30 mm (Area: 75 mm²)
• 12.50 mm (Area: 93 mm²)
• 12.90 mm (Area: 100 mm²)
• 13.00 mm (Area: 102 mm²)
• 15.20 mm (Area: 139 mm²)
• 15.70 mm (Area: 150 mm²)

Bar type	Picture	Description	Also known as
Wire		Used for prestressing steel. Several single wires bundled to form a bigger wire.
Single Wire		Used for prestressing steel

Material libraries

Sweden

Material name	no. of wires	Diameter [mm]	Tensile strength [MPa]	Cross sectional area [mm2]	Description	Source
SS3615LR					Prestressing strand 3615	SS 21 36 15
SS3620LR					Prestressing strand 3620	SS 21 36 20
Y1770S2	2	5.6	1770	9.7		SS 21 25 53:2013, Table 3
		6.0	1770	15.1		SS 21 25 53:2013, Table 3
Y1770S3	3	7.5	1770	29.0		SS 21 25 53:2013, Table 3
Y1860S2	2	4.5	1860	7.95		SS 21 25 53:2013, Table 3
Y1860S3	3	4.85	1860	11.9		SS 21 25 53:2013, Table 3
		6.5	1860	21.2		SS 21 25 53:2013, Table 3
		6.9	1860	23.4		SS 21 25 53:2013, Table 3
		7.5	1860	29.0		SS 21 25 53:2013, Table 3
		8.6	1860	37.4		SS 21 25 53:2013, Table 3
Y1920S3	3	6.3	1920	19.8		SS 21 25 53:2013, Table 3
		6.5	1920	21.2		SS 21 25 53:2013, Table 3
Y1960S3	3	4.8	1960	12.0		SS 21 25 53:2013, Table 3
		5.2	1960	13.6		SS 21 25 53:2013, Table 3
		6.5	1960	21.2		SS 21 25 53:2013, Table 3
		6.85	1960	23.6		SS 21 25 53:2013, Table 3
Y2060S3	3	5.2	2060	13.6		SS 21 25 53:2013, Table 3
Y2160S3	3	5.2	2160	13.6		SS 21 25 53:2013, Table 3
Y1670S7	7	15.2	1670	139		SS 21 25 53:2013, Table 4
Y1700S7G	7	18.0	1700	223		SS 21 25 53:2013, Table 4
Y1770S7	7	6.9	1770	29.0
		9.0		50.0
		9.3		52.0
		9.6		55.0
		11.0		70.0
		12.5		93.0
		12.9		100
		15.2		139
		15.3		140
		15.7		150
		18.0		200
Y1820S7G	7	15.2	1820	165
Y1860S7	7	6.9	1860	29.0
		7.0		30.0
		8.0		38.0
		9.0		50.0
		9.3		52.0
		9.6		55.0
		11.0		70.0
		11.3		75.0
		12.5		93.0
		12.9		100
		13.0		102
		15.2		139
		15.3		140
		15.7		150
Y1860S7G	7	12.7	1860	112
		15.2		165
Y1960S7	7	9.0	1960	50.0
		9.3		52.0
		9.6		55.0
		11.0
		11.3
		12.5
		12.9
		13.0
		15.2
		15.3
		15.7
Y2060S7	7	6.4	2060
		6.85
		7.0
		8.6
		11.3
		12.5
		12.9
Y2160S7	7	6.85	2160