ENAC Seminar Series by Dr Y. Shao
Event details
| Date | 26.08.2021 |
| Hour | 16:15 › 17:15 |
| Speaker | Dr Yi Shao |
| Location | Online |
| Category | Conferences - Seminars |
| Event Language | English |
16:15 – 17:15 – Dr Yi Shao
Postdoctoral Scholar, UC Berkeley, USA
Towards Sustainable Concrete Buildings
As the most consumed construction material, concrete contributes to approximately 7% of global carbon emissions. Meanwhile, cracking, spalling, and steel corrosion challenge the resilience and durability of concrete structures. To address these challenges, a novel class of concrete materials has been developed, known as ultra-high performance fiber-reinforced concrete (UHPFRC). Relative to conventional concrete, UHPFRC shows superior mechanical performance and durability. While plain UHPFRC has superior material performance, steel reinforced UHPFRC structural members often show smaller ductility than reinforced concrete. The causes of this reduced ductility as well as the interaction between steel reinforcement and UHFPRC have not been fully understood, which is important for ensuring the safety of UHPFRC structure and inspiring innovative applications of UHPFRC.
This presentation will cover the failure mechanisms and recently-developed design methods for steel reinforced UHPFRC beams, which include a flexural failure path prediction method, a minimum reinforcing ratio, and a flexural strength prediction method. These new methods guide the design of next-generation reinforced UHPFRC beams, which reduce the initial costs while increasing the strength and ductility of current reinforced UHPFRC beams. Through this work, new constitutive models for numerical simulation are also developed, and a deeper understanding of UHPFRC structural properties is gained. Finally, a new building frame system will be presented to demonstrate how these research findings may inspire and support the development of sustainable concrete buildings that reduce concrete consumption while increasing disaster resilience by strategically applying UHPFRC.
Short bio:
Dr. Shao is a postdoctoral scholar at the University of California, Berkley. He received his M.S. and Ph.D. from Stanford University in Structural Engineering and his Bachelor’s degree from Hunan University. His current research focuses on sustainable infrastructure through the development and application of high-performance materials, optimization tools, and digital construction methods. Dr. Shao has over eight years of research experience in structural concrete and advanced cementitious materials, with emphasis on ultra-high performance fiber-reinforced concrete (UHPFRC). He developed a new cable-stayed bridge system and new UHPFRC structural design methods based on multiscale experiments and finite element simulations. He has authored 13 publications in top journals and international conferences and received the first-place paper award at the Second International Interactive Symposium on UHPC, Albany, NY. He serves as a reviewer for seven high-profile journals in the field of structural engineering and materials research.
Postdoctoral Scholar, UC Berkeley, USA
Towards Sustainable Concrete Buildings
As the most consumed construction material, concrete contributes to approximately 7% of global carbon emissions. Meanwhile, cracking, spalling, and steel corrosion challenge the resilience and durability of concrete structures. To address these challenges, a novel class of concrete materials has been developed, known as ultra-high performance fiber-reinforced concrete (UHPFRC). Relative to conventional concrete, UHPFRC shows superior mechanical performance and durability. While plain UHPFRC has superior material performance, steel reinforced UHPFRC structural members often show smaller ductility than reinforced concrete. The causes of this reduced ductility as well as the interaction between steel reinforcement and UHFPRC have not been fully understood, which is important for ensuring the safety of UHPFRC structure and inspiring innovative applications of UHPFRC.
This presentation will cover the failure mechanisms and recently-developed design methods for steel reinforced UHPFRC beams, which include a flexural failure path prediction method, a minimum reinforcing ratio, and a flexural strength prediction method. These new methods guide the design of next-generation reinforced UHPFRC beams, which reduce the initial costs while increasing the strength and ductility of current reinforced UHPFRC beams. Through this work, new constitutive models for numerical simulation are also developed, and a deeper understanding of UHPFRC structural properties is gained. Finally, a new building frame system will be presented to demonstrate how these research findings may inspire and support the development of sustainable concrete buildings that reduce concrete consumption while increasing disaster resilience by strategically applying UHPFRC.
Short bio:
Dr. Shao is a postdoctoral scholar at the University of California, Berkley. He received his M.S. and Ph.D. from Stanford University in Structural Engineering and his Bachelor’s degree from Hunan University. His current research focuses on sustainable infrastructure through the development and application of high-performance materials, optimization tools, and digital construction methods. Dr. Shao has over eight years of research experience in structural concrete and advanced cementitious materials, with emphasis on ultra-high performance fiber-reinforced concrete (UHPFRC). He developed a new cable-stayed bridge system and new UHPFRC structural design methods based on multiscale experiments and finite element simulations. He has authored 13 publications in top journals and international conferences and received the first-place paper award at the Second International Interactive Symposium on UHPC, Albany, NY. He serves as a reviewer for seven high-profile journals in the field of structural engineering and materials research.
Practical information
- General public
- Invitation required
- This event is internal
Organizer
- ENAC
Contact
- Cristina Perez