A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental investigation on behavior of re-centering energy dissipative brace
Highlights The stiffness and re-centering capacity were determined by diameter of steel cables. The friction and energy dissipation were determined by high-strength bolts. With the increase in displacement, the energy dissipation increase continuously. Different cables and high-strength bolts can satisfy different design requirements.
Abstract In this study, an innovative re-centering energy dissipation (RCED) brace was developed, and its behavior was experimentally studied. The RCED brace contained two groups of cables with zero initial cable force. This configuration helped to eliminate the difficult process of applying pretension and the problem of pretension loss that appears in traditional re-centering braces. The re-centering force was alternately provided using the two groups of cables, and energy dissipation was supplied using a frictional energy dissipative device. A restoring force model for the RCED brace was proposed. Three full-scaled RCED braces with various magnitudes of bolt pretension and cable diameters were designed and experimentally tested. The results indicated that the RCED braces exhibited stable quadrilateral hysteretic responses with effective energy dissipation, excellent re-centering capabilities, adjustable ultimate bearing capacity and appreciable ductility.
Experimental investigation on behavior of re-centering energy dissipative brace
Highlights The stiffness and re-centering capacity were determined by diameter of steel cables. The friction and energy dissipation were determined by high-strength bolts. With the increase in displacement, the energy dissipation increase continuously. Different cables and high-strength bolts can satisfy different design requirements.
Abstract In this study, an innovative re-centering energy dissipation (RCED) brace was developed, and its behavior was experimentally studied. The RCED brace contained two groups of cables with zero initial cable force. This configuration helped to eliminate the difficult process of applying pretension and the problem of pretension loss that appears in traditional re-centering braces. The re-centering force was alternately provided using the two groups of cables, and energy dissipation was supplied using a frictional energy dissipative device. A restoring force model for the RCED brace was proposed. Three full-scaled RCED braces with various magnitudes of bolt pretension and cable diameters were designed and experimentally tested. The results indicated that the RCED braces exhibited stable quadrilateral hysteretic responses with effective energy dissipation, excellent re-centering capabilities, adjustable ultimate bearing capacity and appreciable ductility.
Experimental investigation on behavior of re-centering energy dissipative brace
Zhang, Ailin (author) / Ye, Quanxi (author) / Wang, Zongyi (author)
Engineering Structures ; 213
2020-04-02
Article (Journal)
Electronic Resource
English