Hollow Circular Ultra-High-Performance Concrete (UHPFRC) Section under Lateral Cyclic Load

In this chapter, the finite element (FE) model for the hollow circular section with Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC) material is developed using ABAQUS software and subjected to lateral cyclic load. The model consists of the hollow circular section, transverse and longitudinal reinforcement, and a steel sleeve to fully fix the bottom of the section. The hollow section is considered a segment of the precast concrete tower. Hence, the pure cyclic lateral load is applied to the top of the cylindrical section without any axial load. The concrete damage plasticity (CDP) model is defined for UHPFRC concrete modeling using the tension–compression constitutive model of concrete and concrete plasticity index. Then, tension and compression damage factors are calculated and implemented in the software. The input data of the CDP model are determined using the tested material properties.