Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns

Table 2

Mechanical properties of steels.

Components	Size	Yielding strength fy (MPa)	Tensile strength fu (MPa)
I-steels	I22a	288.1	499.0
Steel diaphragms	−12	291.2	488.3
Steel tube	ϕ159 × 8	255.0	425.0
	8	388.4	562.2
Steel bars	12	402.3	570.6
	25	445.3	613.7
Tendons	ϕ^s12.7	1494	1717
	ϕ^s15.2	1679	1930