Earthquakes and Structures

Volume 15, Number 4, 2018, pages 351-360

DOI: 10.12989/eas.2018.15.4.351

Energy based design of a novel timber-steel building

Caleb Goertz, Fabrizio Mollaioli and Solomon Tesfamariam

Abstract

Energy-based methodology is utilized to design novel timber-steel hybrid core wall system. The timber-steel core wall system consists of cross laminated timber (CLT), steel columns, angled brackets and t-stub connections. The CLT wall panels are stiff and strong, and ductility is provided through the steel t-stub connections. The structural system was modelled in SAP2000 finite element program. The hybrid system is explained in detail and validated using first principles. To evaluate performance of the hybrid core system, a 7-story building was designed using both forced-based design and energy based design (EBD) approaches. Performance of the structure was evaluated using 10 earthquakes records selected for 2500 return period and seismicity of Vancouver. The results clearly served as a good example of the benefits of EBD compared to conventional forced based design approaches.

Key Words

energy-based design; hybrid system; cross laminated timber; connection

Address

Caleb Goertz: Read Jones Christoffersen Ltd., Victoria, BC, Canada Fabrizio Mollaioli: Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Via Gramsci 53, 00197 Rome, Italy Solomon Tesfamariam: School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC, Canada