演讲嘉宾

Dr. Zuohua Li, Professor

School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China

Biography: Dr. Zuohua Li has long been engaged in research on high-rise building structural systems, high-performance prefabricated structural systems, intelligent testing and monitoring of engineering structures, and intelligent comprehensive utilization of construction waste. He has led three National Natural Science Foundation of China projects, eight provincial and municipal projects, and served as the sub-project leader for one National Natural Science Foundation of China major scientific instrument development project and one major project. He has also participated in one National Natural Science Foundation of China major international (Sino-US) cooperative research project. His research results have been directly applied to dozens of important projects, such as Jingji 100, Shenzhen Aerospace Sci-Tech Square, and Shenzhen Dashi Intelligent Building. As a core member, Dr. Zuohua Li has received the First Prize of Guangdong Provincial Science and Technology Progress Award (second place), the First Prize of Ministry of Education Science and Technology Progress Award (third place), and two First Prizes of Shenzhen Science and Technology Progress Award. In addition, he has received financial support from the National Publishing Fund to publish a monograph and have applied for and been granted over 50 invention patents.

Topic: Seismic Performance Research on Frame-Shear Wall Structure System Based on the Prefabricated Module

Abstract: Modular building is a form of highly integrated prefabricated building. It has been a development direction of industrial buildings owing to its high prefabrication rates, efficient construction, energy saving and environmental protection. Traditional modular reinforced concrete buildings adopt wet connections and bring about several problems, such as long construction period, difficult inspection of connection quality, difficult to remove and reuse, and poor seismic resistance. Therefore, the wet connection has significantly restricted the development of modular buildings. This thesis studies the modular units and its connection forms for modular shear wall structures. A connection joints ease of installation and removal for frame modules is designed, and a modular shear wall system with prefabricated energy dissipation and vibration damping components is proposed. The mechanical properties of frame modules and the seismic performance of the modular shear wall system are also studied. The main work and findings include: Determine the module types and connection methods of modular frame shear wall structure systems. Analyze the mechanical properties and optimize the structural design of the connection joints as well as composite columns of the frame module. Study the seismic performance of modular frame shear wall structure systems. The results show that the modular structure with prefabricated energy dissipation and damping component module can reduce the damage of concrete frame module and shear wall, as well as improve the overall seismic performance and rapid recovery ability, thus ensuring the normal use function of the structure.