Abstract
To upgrade the seismic performance of reinforced concrete framed structures with insufficient seismic capability, the high-performance acrylate viscoelastic dampers (AVED) are developed. A series of dynamic mechanical performance tests are carried out on high-performance AVED. A new strategy for retrofitting RC framed structures using AVED is proposed. To systematically study this new retrofitting structural system, the seismic performance of seven RC frame specimens and seven AVED-added RC frame specimens with different shear-span ratios of 2.0–8.0 are compared. On this basis, the influence rule of shear-span ratio on structural damage evolution is qualitatively analyzed. The structural damage evolution at material-level under different shear-span ratios is qualitatively comparted and analyzed in the whole process. The research results show that the self-developed AVED has excellent energy-consumption capability, and dynamic mechanical properties and energy-consumption capability are strongly dependent on frequency and displacement amplitude. The added AVED greatly improves the seismic performance of the retrofitted RC frame structure. At the same time, AVED effectively improves the failure mode of the structure and avoids the brittle failure mode of the beam-column joints under low shear-span ratios.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
