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With LRB wide range of applications , the complexity of the case design methods can not meet the actual needs of its large-scale promotion . In recent years, many scholars studied the LRB mechanical model to simplify the design methods, and support the optimal design . However, most studies do not get to the bottom of lead rubber bearing stiffness after yielding actual ratio , but with reference to Japan or New Zealand research findings before and after taking the yield stiffness ratio of 6.5 or 10 . This assumption ignores LRB Lead rate with the size of the bearing stiffness before yielding the impact , when the actual rate with lead -related research in Japan or New Zealand bearing models vary greatly , the results of the analysis will lead to large errors . In this paper, 1000,750,500 ton LRB as the object of the pier at different axial compression ratio, the LRB damping system with energy in the form and lead a reasonable rate range . Thesis damping system total energy consumption ; LRB energy consumption, energy consumption pier end of the plastic zone as well as their percentage of the total energy consumption ; pier top , bearing displacement and other control parameters as indicators, LRB parametric design , determine different conditions LRB optimal frequency range with lead , in order to achieve optimal system energy consumption and the main beam displacement indicators . .....................
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