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Welcome, I'm

YI SHAO

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  • I am a dedicated researcher. My research aims at improving the sustainability and automation level of the construction industry by promoting circular utilization and autonomous construction. Current projects focus on developing adaptable, resilient, and durable structural systems that minimize material and labor usage.  My toolbox includes high-performance materials, innovative structural systems, advanced design methods, and autonomous construction methods

  • I am a passionate educator and committed to (1) helping each student realize her/his unique dreams and (2) fostering a diverse, inclusive, and dynamic education environment. 

  • Our lab at McGill University is actively HIRING!  Learn more about the opportunities!

Profession & Education

2022 - Present   McGill University                             Assistant Professor

                           Our lab is HIRING! 

 

2020 - 2022       University of California, Berkeley    Postdoctoral Scholar

2017 - 2020       Stanford University                          Ph.D. in Structural Engineering

 

2015 - 2017       Stanford University                          M.S. in Structural Engineering

2011 - 2015       Hunan University                             B.S. in Bridge Engineering 

Group Members
(Last name alphabetical order)

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Reza Abolhelm 

Ph.D. Student

Topic: Optimized concrete structures with UHPC and GFRP

Award: McGill Engineering Doctoral Award (MEDA)

Romina Chalabi

Ph.D. Student

Topic: Seismic performance and design of GFRP-reinforced concrete frame-wall hybrid system 

Award: McGill Engineering Doctoral Award (MEDA)

Seyed Mohammad Hosseini
Postdoctoral Scholar 

Topic: Seismic performance and design of GFRP reinforced concrete structures  

Award: FRQNT Postdoctoral Training Scholarship (B3X)

Chandrashekhar Lakavath 

Postdoctoral Scholar 

Topic: Development of structural design guidance for UHPC  

Award: Fulbright Visting Research Scholar 

Yinsheng Li

Ph.D. Student (co-advised by Dr. Zhen Dong, UC Berkeley)

Topic: AI-assisted structural design  

Award: CSC PhD Award 

Yingtong Luo

Undergraduate Research Assistant 

Topic: Deep-learning-based rebar cage quality inspection 

Award: Summer Undergraduate Research in Engineering (SURE) Scholarship 

Zihan Quan 

MS-Thesis Student

Topic: Maximum reinforcing ratio of UHPC beams: towards slender and sustainable elements 

Award: McGill Engineering Undergraduate Student Masters Award (MEUSMA)

Xiaoning Sun 

MS-Thesis Student

Topic: Reusing new and existing concrete structural members  

Award: Mitacs Accelerate 

Tao Sun

Ph.D. Student (co-advised by Prof. Szymon Rusinkiewicz, Princeton University)

Topic: Robotic assembly of rebar cages

Award: McGill Engineering Doctoral Award (MEDA); PCI Daniel P. Jenny Fellowship

Bahareh Nader Tehrani 

Postdoctoral Scholar 

Topic: Reconfigurable, precast beam-column joints    

Award: Mitacs Accelerate 

Jian Zhan

Postdoctoral Scholar 

Topic: Development of structural design guidance for UHPC  

Award: Mitacs Accelerate 

Saiyang Zhuo

Ph.D. Student

Topic: Seismic performance and design of GFRP-reinforced beam-column joints

Award: Mitacs Accelerate 

Research Projects

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Improving the Sustainability and Ductility of Reinforced UHPC (ultra-high performance concrete) Beams

Tag: Reduce; Resilience 

Background:

  • Current UHPC materials include 2% or higher volume of steel fibers, which can contribute to over 30% and 40% of material costs and carbon emission, respectively. 

  • Current reinforced UHPC beams often fail early after crack localization and exhibit lower structural ductility than traditional reinforced concrete beams.

Goals:

  • Investigate the feasibility of lowering fiber volume in UHPC structures. 

  • Develop design methods to improve the structural ductility of reinforced UHPC beams. 

Research framework:

 

 

 

 

 

 

 

 

 

 

Featured results:

 

Compared to current practice, the new beam design can increase the strength and ductility by 44% and 114%, respectively, while reducing the initial costs and embodied carbon by 10% and 15%, respectively. 

Selected publications (shown in a recommended reading sequence):

  1. Shao, Y., Billington, S.L. (2019). Utilizing Full UHPC Compressive Strength in Steel Reinforced UHPC Beams, 2nd International Interactive Symposium on UHPC, Albany, NY. (First-Place Paper Award)

  2. Shao, Y., Billington, S.L. (2019). Predicting the Two Predominant Flexural Failure Paths of Longitudinally Reinforced High-performance Fiber-reinforced Cementitious Composite Structural Members. Engineering Structures, 199:109581.

  3. Shao, Y., Billington, S.L. (2022). Impact of UHPC Tensile Behavior on Steel Reinforced UHPC Flexural Behavior. Journal of Structural Engineering, 148(1): 04021244.

  4. Shao, Y., Billington, S.L. (2021). Impact of cyclic loading on longitudinally-reinforced UHPC flexural members with different fiber volumes and reinforcing ratios. Engineering Structures, 241:112454.

  5. Shao, Y., Hung, C-C., Billington, S.L. (2021). Gradual Crushing of Steel Reinforced HPFRCC Beams:
    Experiments and Simulations. Journal of Structural Engineering, 147(8): 04021114.

  6. Shao, Y., Tich, K. L., Boaro, S. B., Billington, S.L. (2022). Impact of Fiber Distribution and Cyclic Loading on the Bond Behavior of Steel-reinforced UHPC. Cement and Concrete Composites: 104338.(PDF)

  7. Shao Y., Ostertag C.P. (2022) Bond-slip behavior of steel reinforced UHPC under flexure: Experiment and prediction. Cement and Concrete Composites. 133: 104724.

Light-weight and High-performance Façade for Energy-Efficient Buildings 

Tag: Reduce

Background:

  • According to the International Energy Agency, air conditioning and fans account for 10% of the global electricity consumption in 2018, a number that is expected to triple by 2050. 

Goals:

  • Maximize the thermal insulation to reduce the thermal load and energy consumption within the buildings. 

  • Minimize the self-weight to reduce the energy and costs associated with the transportation and erection of the façade panels

Research framework:

 

Featured results:

Relative to two commonly-adopted façade designs (EPS sandwich façade and solid concrete façade),

the new façade design reduces the embodied carbon by over 35% while increasing the thermal resistance

by over 102%. Meanwhile, the new façade is more than 38% lighter than the other two options. 

Selected publication:

  1. Shao Y., Parks A., Ostertag C.P. (2022) Lightweight Concrete Façade with Multiple Air Gaps for Sustainable and Energy-efficient Buildings in Singapore. Building and Environment. 223: 109463.

More exciting projects will be announced soon! 

These will include robotic construction, AI-assisted structural design, reconfigurable structure, and structural optimization of FRP, concrete, UHPC and/or timber hybrid structure. 

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Academic Activities

Journal Publications (My mentees are underlined, supervisor becomes the last author

  1. Tian, X., Fang, Z., Liu, S., Xiang, Y., Zhu, Q., Shao, Y. (2024) Flexural fatigue behavior of ultra-high performance concrete under low temperatures. Cement and Concrete Composites. 150: 105550

  2. Shao, Y., Ostertag C.P. (2023) LEGO-Inspired and Digitally-Fabricated steel reinforcement cage for Ultra-High performance concrete (UHPC) beams. Engineering Structures, 279, 115617

  3. Shao, Y., Parks A., Ostertag C.P. (2023) Carbon Footprint between Steel-Reinforced Concrete and UHPC Beams. Journal of Structural Engineering, 149(3): 06023001.

  4. Shao, Y., Nguyen, W., Bandelt, M.J., Ostertag, C.P., Billington, S.L. (2022). Seismic Performance of High-Performance Fiber-Reinforced Cement-Based Composite Structural Members: A Review. Journal of Structural Engineering, 148(10): 03122004.

  5. Shao, Y., Ostertag, C.P. (2022) Bond-slip behavior of steel reinforced UHPC under flexure: Experiment and prediction. Cement and Concrete Composites. 133: 104724.

  6. Shao, Y., Parks, A., Ostertag, C.P. (2022) Lightweight Concrete Façade with Multiple Air Gaps for Sustainable and Energy-efficient Buildings in Singapore. Building and Environment. 223: 109463.

  7. Shao, Y., Billington, S.L. (2022). Impact of UHPC Tensile Behavior on Steel Reinforced UHPC Flexural Behavior. Journal of Structural Engineering, 148(1): 04021244.

  8. Shao, Y., Tich, K. L., Boaro, S. B., Billington, S.L. (2022). Impact of Fiber Distribution and Cyclic Loading on the Bond Behavior of Steel-reinforced UHPC. Cement and Concrete Composites. 126: 104338. (PDF)

  9. Hung, C-C., Hsiao, HJ., Shao, Y., Yen, CH. (2022). A comparative study on the seismic performance of RC beam-column joints retrofitted by ECC, FRP, and concrete jacketing methods. Journal of Building Engineering, 105691.

  10. Williams, I.D., Arteta, C., Shao, Y., Ostertag, C.P. (2022) Hybrid fiber reinforced concrete special shear wall boundary element in compression. Engineering Structures, 252:113726.

  11. Zhao, W, Liu, Y, Zhang, J, Shao, Y, Shu, J. (2022) Automatic pixel-level crack detection and evaluation of concrete structures using deep learning. Struct Control Health Monit. 2022;e2981.

  12. Shao, Y., Hung, C-C., Billington, S.L. (2021). Gradual Crushing of Steel Reinforced HPFRCC Beams:
    Experiments and Simulations. Journal of Structural Engineering, 147(8): 04021114.

  13. Shao, Y., Billington, S.L. (2021). Impact of cyclic loading on longitudinally-reinforced UHPC flexural members with different fiber volumes and reinforcing ratios. Engineering Structures, 241:112454.

  14. Shao, Y., Kuo, C-W., Hung, C-C. (2021). Seismic performance of full-scale UHPC-jacket-strengthened RC columns under high axial loads. Engineering Structures, 243:112657.

  15. Zhang, C., Shu, J., Shao, Y., Zhao, W. (2021). Automated generation of FE models of cracked RC beams based on 3D point clouds and 2D images. Journal of Civil Structural Health Monitoring.

  16. Hung, C-C., Kuo, C-W., Shao, Y. (2021). Cast-in-place and prefabricated UHPC jackets for retrofitting shear-deficient RC columns with different axial load levels. Journal of Building Engineering, 44:103305.

  17. Shao, Y., Billington, S.L. (2020). Flexural Performance of Steel-reinforced Engineered Cementitious Composites with Different Reinforcing Ratios and Steel Types. Construction and Building Materials, 231:117159.

  18. Shao, Y., Billington, S.L. (2019). Predicting the Two Predominant Flexural Failure Paths of Longitudinally Reinforced High-performance Fiber-reinforced Cementitious Composite Structural Members. Engineering Structures, 199:109581.

  19. Shao, Y., Shao, X., Li, L., Wu, J. (2017). Optimum Combination of Bridge and Deck Systems for Superspan      Cable-Stayed Bridges. Journal of Bridge Engineering, 23(1), 04017112.

  20. Deng, L., He, W., Shao, Y. (2015). Dynamic impact factors for shear and bending moment of simply supported  and continuous concrete girder bridges. Journal of Bridge Engineering, 20(11), 04015005. 

Research Collaborators

  • Prof. Sarah L. Billington (Stanford University)

  • Prof. Claudia P. Ostertag (University of California, Berkeley)

  • Prof. Glaucio H. Paulino (Princeton University)

  • Prof. Szymon Rusinkiewicz (Princeton University)

  • Prof. Chung-Chan Hung (National Cheng Kung University)

  • Prof. Matthew J. Bandelt (New Jersey Institute of Technology)

Grants & Awards

2022-present Our lab has received funding over CAD 1.0 million from various partners including the government and industry. 

Our group members have won many awards, which are indicated under their profiles.  

2019.06 First Place Paper Award at 2nd international UHPC symposium (Albany, NY)

(1st out of 112 peer-reviewed papers)

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Service

2024.04-2024.11
1st International Conference on Engineering Structures

Serving as the co-chair of a Mini-Symposia on UHPC and FRP. 

2022.10-present 

Guest editor, Journal Advances in Structural Engineering  

Serving as a guest editor for the special issue "Innovative Applications of UHPC in Structural Engineering "

2022.08-2023.06

Organization and scientific committee member of the Third International UHPC Symposium 

Serving as the co-chair of the panel discussion. 

2022.06-present

Technical committee member of ASTM International 

Serving as an active member of ASTM F42.07.07 Additive Manufacturing Technologies - Construction.

2021.09-present 

Technical committee member of American Concrete Institue (ACI)

Serving as a voting member for ACI 239-0C (Structural design on UHPC) and the Chair of the shear design section of the upcoming ACI UHPC Structural Design Guidance. 

Photography

Never Leave!

(current project)

(CNN News)-Microplastics have been found in human stools for the first time, suggesting they may be widespread in our food chain.

 

Industrial products (e.g., plastics and batteries) bring huge convenience to our life.  However, have we ever seriously thought about these questions: where do they go to after they finish their service? Is the trash can the true end of their life? Do you pretend that they have left your world after throwing them away?

Actually, they never leave! They are everywhere! They threaten the wildlife and our pets who do not recognize them. They come back to us through polluted water, vegetables, and animal meat that grow on this polluted land. No matter how hard it is, they have found a way to our gut!

Every year, over 300 million tons of plastics are produced and more than 50% of them are discarded. Plastics have been found in the most remote areas of the ocean, including the Arctic and Marina Trench. To save us, our next generations, and our planet, it is now the time to look seriously at them and take action!

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Contact

shaoapply@gmail.com

817 Sherbrooke Street West,

Macdonald Engineering Building Room 480,

Montreal, QC, Canada H3A 0C3

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