Seismic Performance of Large-Scale 3D Printed Concrete Panels (2024-11)¶

The advent of 3D Concrete Printing (3DCP) technology has opened new possibilities in the construction industry, especially in the optimization of structural design and sustainability. This study is deals with the seismic implications of using large-scale 3D printed concrete panels, focusing on their unique manufacturing characteristics and potential advantages over traditional construction methods. Through an experimental framework, we examine the behavior of these panels under cyclic in-plane loading and axial forces, simulating seismic effects to assess their structural resilience and performance. Accompanying the experimental investigation is an analytical interpretation that includes a Finite Element Method (FEM) approach for accurately modeling the interfaces between layers, a critical aspect unique to 3DCP. Furthermore, we compare the seismic response of 3D printed panels with existing structural codes to highlight discrepancies and areas of alignment. The findings reveal insightful aspects of 3D printed concrete's behavior under seismic loading, emphasizing the technology's potential and current limitations. Despite demonstrating promising attributes, the study identifies specific constraints related to the material properties and printing techniques that need addressing to fully exploit 3DCP in seismic-prone areas.