Optimization Design and Application of Underground Reinforced Concrete Bifurcation Pipe

Table 1

Main mechanical properties of C30 concrete and rebar.

Mechanical index	C30 concrete	Rebar
Density	2.5 g/cm^3	—
Elastic modulus	28 GPa	210 GPa
Poisson’s ratio	0.167	0.3
Tensile strength	1.5 MPa	210 MPa
Compressive strength	15 MPa	210 MPa