Title:Cold-Formed Steel Structures: Basic Design Method and Recent Research on High-Performance Shear Wall System

Reporter: Yu Cheng, professor

Time: 9:00 a.m., Thursday, June 15, 2017

Venue:Room 301, East Wing of the Main Building, School of Civil Engineering

Organizer: Discipline of Structure Engineering, Discipline of Architecture and Civil Engineering  

About the Report

Cold-formed steel (CFS) structure is becoming an attractive choice for mid- and low-rise building in US and worldwide due to its advantages of fast construction, easy transportation, high quality control, and mass production ability. However due to the thin-walled structure nature, CFS structures may tend to buckle in complicated modes and require extensive stability analysis in design. This presentation will have two parts. In Part I, the basic CFS design theory – effective width method will be introduced. Then a new generation design method – Direct Strength Method will be discussed, its application in a recent clip angle design project will be presented. In the Part II, a review of recent research work on cold-formed steel shear wall using corrugated steel sheathing will be given. The new shear wall system offers higher strength and greater stiffness than the conventional shear wall systems in CFS buildings. The presentation will provide both experimental and analytical investigation of the new shear wall system for low- and mid-rise buildings.

About the Reporter

Dr. Yu Cheng, is a tenured professor at University of North Texas in the United States. He received a bachelor’ s degree in civil engineering from Tsinghua University in June 1998 and a master’ s degree and a doctorate from the Johns Hopkins University in the United States in May 2005. Then he entered the Department of Engineering Technology at University of North Texas as an assistant professor, and became an associate professor in 2011 and a professor in 2016. Yu Cheng is a member of the American Society of Civil Engineers (ASCE) and the American Institute of Steel Construction (AISC). He participated in the compiling of the design specification of cold-formed steel in North America. In 2010, he was granted the Early Career Development (occupation) Award by the National Natural Science Foundation of the United States. In 2011, the Distinguished Reviewer Award was given by the American Society of Civil Engineers. Professor Yu’s research interests include thin-walled structures, structural stability, cold-formed steel, earthquake engineering and structural control. He has presided over 25 research projects worth more than 200 dollars, supported by the National Natural Science Foundation of the United States, the American Institute of Steel Construction, the U.S. government, universities and enterprises. He published more than 20 SCI papers about civil engineering as the first author in journals likeJournal of Structural Engineering,Journal of Constructional Steel Research,Thin-Walled Structures,Engineering Structures,Earthquake Engineering and Engineering Vibrationetc.