Yefan Zhi
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Yefan Zhi

Yefan Zhi / 支业繁 Ph.D. Candidate Department of Architecture University of Pennsylvania             

I am a fourth-year Ph.D. student in Architecture at the University of Pennsylvania where I am part of the Polyhedral Structures Laboratory (PSL). My research interests are in toolpath design for 3D concrete printing, its applications in structural systems, form-finding by graphic statics, and methods of multi-material extrusion. I am especially excited about exploiting computational geometry and graph algorithms to optimize the energy and material efficiency of additive manufacturing processes across the architecture, engineering, and construction industry.

I am the author of the 3D printing slicing software Ovenbird and a recipient of the IASS Hangai Prize. My Ph.D. advisor is Dr. Masoud Akbarzadeh. Previously I studied at Tsinghua University and received a Bachelor’s degree in Architecture, supervised by Dr. Weixin Huang, and a Bachelor’s degree in Sociology, supervised by Dr. Yue Du.

At the University of Pennsylvania, my research is supported by the U.S. Department of Energy, the U.S. National Science Foundation, and the Ph.D. Grant of the Weitzman School. Besides research, I write blog posts, bird watch, and run marathons. I designed the new PSL website in January 2023 and have continued to update it.

News

2026.08.06: I am co-leading a workshop on gradient multi-material printing with Teng Teng at ACADIA 2026, Detroit, MI.
2026.02.09: I am an invited faculty for the Block Week at the University of Calgary’s School of Architecture, Planning and Landscape, teaching a workshop on design and optimization for architectural 3D concrete printing.
2025.10.27: I am a recipient of the Hangai Prize (best researcher under 30) at IASS 2025 in Mexico City, in recognition of my paper Surface Toolpath Twins.
2025.09.23: I am teaching an elective course in computational design as a PhD candidate in Spring 2026.
2025.09.17: Ovenbird Documentation Site is released.
2025.08.20: Advances in Architectural Geometry 2025 Boston will feature an Ovenbird workshop delivered by me and Masoud Akbarzadeh.
2025.04.22: Ovenbird 2 is released.
2024.11.16: Functionally Graded Architectural Materials wins the Best Paper Award (Runner-Up) at ACADIA 2024, Banff, Canada.
2024.08.21: Slicing software Ovenbird is released.

Education

Doctor of Philosophy - PhD, Architecture, University of Pennsylvania Philadelphia, PA, USA, 2023 - 2027 (Expected)
Master of Science in Design - MSD, Architecture, University of Pennsylvania Philadelphia, PA, USA, 2021 - 2022
Bachelor of Architecture - BArch, Architecture, Tsinghua University Beijing, China, 2016 - 2021
Bachelor of Arts - BA, Sociology, Tsinghua University Beijing, China, 2016 - 2020