Abstract
A construction 3D printing system could result in automated infrastructure development at reduced cost and time, leading to a significant boost in overall productivity. Although there has been a growing interest in using construction 3D printing for projects such as house construction, implementing this innovative technology for infrastructure development, particularly large-size bridges, has not been investigated as extensively. Bridges are complex structural systems subject to various static and dynamic loads, making automated bridge construction using construction 3D printing challenging. This study investigates the available construction 3D printing technology for bridge construction in the United States and worldwide. First, a comprehensive literature review is performed to investigate the applicability of construction 3D printing technology for infrastructure development. Then, the implemented technologies and construction methods for the 3D printed small-size bridges (i.e., pedestrian and biking bridges) in different countries are discussed. Finally, the limitations and challenges and the future directions of construction 3D printing in bridge construction are highlighted.
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