Ninth International Conference on Advances in Steel Structures (ICASS 2018)
COMPARATIVE ANALYSIS OF RESILIENT PRESTRESSED STEEL FRAMES
Zhang Y.X.1, 2, *, Li Q.G.3, Jiang K. 3 and Sun Y.3
1Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture Beijing, China
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
2Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material, Beijing University of Civil Engineering and Architecture, Beijing, China
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
3Master Candidate, School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing, China
E-mails:This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT:
The resilient prefabricated prestressed steel frame (RSF) has been proposed and researched by the researching group, which can effectively control structural damage, reduce or eliminate residual deformation of the structure, be feasible to repair after undergoing seismic actions. Focusing on the steel structures with large spans locating in high seismic zone, a new RSF with intermediate columns containing friction dampers (RSFFD) has been proposed. In this thesis, based on the accomplished pseudo-dynamic test of RSF, two 1 bay-4 floor models toward the RSF and RSFFD are established, dynamic time-history analysis of both models under various magnitudes are carried out by adopting software ABAQUS, and numerical simulating results of both frames are achieved and compared to investigate the seismic performance. From analyzing results, it can be concluded that intermediate-column type friction damper (ICFD) can not only improve the lateral stiffness of RSF significantly, control the inter-story drift effectively but enhance energy dissipating capacity under design and rare earthquakes and reduce the plasticity development and structure damage of the main parts.
Keywords:
Resilient prefabricated prestressed steel frame; Intermediate columns; Friction damper; Comparison study; Seismic performance analysis
Download PDF: