NEGAR KALANTAR

Project Description: This project proposes a new pedestrian bridge that will be manufactured with 3D-printed concrete technology, connecting the Peace Center to the west side of the Reedy River in Greenville, South Carolina. This bridge is potentially the first 3D-printed infrastructure in the US. The total length of the bridge is approximately 170 feet. Ramp inclination (according to the International Building Code) and the existing trees on the site inform the bridge trifurcating arched design. Besides proposing a design concept to address manufacturing constraints, installation processes, and regulations, the team investigates the global discrete element analysis, as well as the possibility of structural test campaigns.

The bridge is separated into two structural parts as follows:

·Main Part: The main part consists of post-stressed discrete printed concrete elements where high-strength steel tendons are placed inside the concrete sections.

·Footings: Three footings contain the post-tensioning anchorages, allowing the main part to span between them above the flooding plane. The footings are to be printed as hollow parts and filled with concrete to embed the anchors.