Research Article

Experimental Analysis of Bending Stiffness Characteristics of Grouted Double Mortise-Tenon Joint for Prefabricated Metro Station Structure

Table 3

Design ranges and stiffness values of double-tenon joints with auxiliary pretightening device in tension side under different axial loads.

Axial load (kN)Design bearing range (kN·m)Design using bending stiffness (kN·m/rad)

5000∼3803.90E + 05∼2.19E + 06
10000∼4903.02E + 05∼2.19E + 06
12500∼637.54.06E + 05∼2.19E + 06