Designs of Concrete Bridges with Multiple Box Cells Due to Torsion Using Softened Truss Model

The authors of this paper present a method for torsional design of multicell concrete bridges using a softened truss model. Earlier researchers have successfully demonstrated the development for solving single cell torsion by combining the equilibrium, compatibility, and the softened constitutive laws of concrete. By solving the simultaneous equations based on the membrane analogy, multicontinuous or separate cells can be solved.