Eij	the GSED value of the i-th point under the j-th load
εij	the strain value of this point
Ej	the GSED and value of each point under the action of the j-th load
E max	the maximum GSED and value in the whole process
Ej, norm	all measuring points reflect the stress state of the structure under each load step Fj
φ s	stands for steel strand
Df	Diameter of non-prestressed reinforcement
fy	The measured yield strength of non-prestressed reinforcement
fst	The measured value of ultimate strength of non-prestressed reinforcement
Es	The elastic modulus of non-prestressed reinforcement
Dn	Diameter of prestressed steel bar
fpy	Tensile strength of prestressed steel bars
Ep	Modulus of elasticity of prestressed steel bars
fcu	Compressive strength of concrete cube test block
ft	Axial tensile strength of concrete
Ec	Elastic modulus of concrete
ft,r	the representative value of uniaxial tensile strength of concrete
αt	the parameter of the descending section of the stress-strain curve of concrete under uniaxial tension
εt,r	the peak tensile strain of concrete corresponding to the representative value of uniaxial tensile strength
dt	represents the damage evolution parameter of concrete under uniaxial tension
fc,r	the representative value of uniaxial compressive strength of concrete
αc	the parameter of the descending section of the stress-strain curve of concrete under uniaxial compression
εc,r	the peak tensile strain of concrete corresponding to the representative value of uniaxial compressive strength
dc	represents the damage evolution parameter of concrete under uniaxial compression