A Comparative Review of Diagrid Systems, Moment Frame Systems, And Shear Wall Systems in Seismic-Resistant Design

Title

A Comparative Review of Diagrid Systems, Moment Frame Systems, And Shear Wall Systems in Seismic-Resistant Design

Author

1. Mehedi Hasan, Assistant Professor, Rajshahi University of Engineering & Technology, Bangladesh
2. Tonmoy Mondol, Student, Rajshahi University of Engineering & Technology, Bangladesh
3. Sayef Fahim, Student, Rajshahi University of Engineering & Technology, Bangladesh

Abstract

Keywords

Conclusion

This comparative review of diagrid, moment frame and shear wall systems contain the strengths and weaknesses of each approach in terms of earthquake resistant design. For example, diagrids are stiffer compared to other systems and offer significant design flexibility, but they come at a high cost and require complex design practices. On the other hand, moment frames are known for their ductility and easy of constructability but they face issues with the joint’s integrity during strong seismic events. Likewise, Shear walls offer excellent displacement control and stiffness, but they often require meticulous design details to prevent stress concentrations, occurs due to their stiffness.

These trade-offs among these systems lead to the development of hybrid systems. Hybrid systems combine different elements from these structural systems. For example, integrating base isolations with diagrids, dampers with moment frames, and energy dissipating devices with shear walls has been shown to enhance the seismic-performance, cost-efficiency, and sustainability. Many real-world examples of hybrid solutions around the world include bamboo-reinforced buildings in Nepal and structures retrofitted with recycled aggregate concrete in Italy. Also, these structures are tailored to the local resources, economic conditions, and seismic risks.

Thanks to the advancements of current technologies such as AI-based design optimization, 3D-printed structural components, and IoT sensor networks, the design field of earthquake-resistant structures is evolving significantly. These technological advancements paved the way for creating more rational and sustainable structures, which can lower the long-term costs and environmental impacts. However, the real challenge remains in implementing these advancements, especially in regions with limited resources.

In conclusion, progress in earthquake-resistant design depends on selecting the right solutions for the right conditions, fostering interdisciplinary collaboration, and embracing new technologies and sustainable approaches. By merging traditional systems with modern technologies and sustainable practices, designers and engineers can develop secure, robust, environmentally friendly, and cost-effective structures.

Author Contrubution

The manuscript was written by Assistant Professor Mehedi Hasan, Tonmoy Mondol, and Sayef Mohammad Fahim, who contributed equally to the study, data collection, analysis, and manuscript preparation. Each author played a significant role in the conceptualization and review of the research, ensuring a comprehensive analysis of the structural systems.

Funding

This research was supported by Rajshahi University of Engineering & Technology (RUET), Rajshahi, Bangladesh. No external funding was received for this work.

Conflict of Interest

The authors declare that there is no conflict of interest related to this manuscript.

Data Sharing Statement

The data supporting the findings of this study are available within the manuscript. Additional data will be provided upon reasonable request from the corresponding author.

Software And Tools Use

Acknowledgements

The authors would like to thank their colleagues and classmates at the Department of Building Engineering & Construction Management, Rajshahi University of Engineering & Technology, for their valuable feedback and insights during the preparation of this manuscript.