EXPERIMENTAL STUDY ON NEW COMBINED STEEL-LEAD DAMPER

A new combined steel-lead damper (CSLD) which combines the merits of steel and lead and exhibits low yield strength is developed. Two groups of tests with CSLD for different working parameters and one contrast test with conventional steel damper were conducted. The influences of flange girth width and web plate thickness of the CSLD were analyzed, and the comparison of hysteresis curves of CSLD and steel damper were carried out. The results show that the new CSLD exhibits full hysteresis loop and stable energy dissipation. And its expected performance can be achieved by appropriate parameter design. From the study, it can be seen that the new CSLD is economical and easy to manufacture, and has a high performance-price ratio.