A numerical method to generate optimal load paths in plain and reinforced concrete structures

作者：Bruggi Matteo^*

来源：COMPUTERS & STRUCTURES, 2016, 170: 26-36.

DOI：10.1016/j.compstruc.2016.03.012

• Topology optimization
• Strut-and-tie models
• Reinforced concrete structures
• Plain concrete structures
• Energy-based methods

A numerical method based on topology optimization is proposed to generate optimal strut-only models for structures made of plain concrete and optimal strut-and-tie models for concrete structures where fixed regions of reinforcement are prescribed. Assuming concrete as a hyper-elastic material carrying only compression, both the inherently nonlinear equilibrium equation and the energy-based topology optimization problem are solved within the same minimization procedure. Numerical simulations investigate load paths within the two-dimensional domain in case of conventional rebar cages. A stress diffusion problem is considered as well.

• 出版日期2016-7-1