A STUDY ON SEISMIC RESPONSE REDUCTION OF STEEL PIERS BY BASE ISOLATION AND VISCOUS DAMPER DEVICES FOR EXISTING VIADUCTS

Bibliographic Information

Other Title
  • 既設高架橋の鋼製橋脚基部に着目した免震・制震デバイスによる地震応答低減に関する研究

Description

 In this paper, hybrid effect by base isolation and viscous damper devices is explained in order to reduce seismic response for widening existing viaducts. Authors carried out nonlinear time-history seismic response analyses under the level II earthquake. The behavior of steel girders and piers, the interaction and collision between girders, and effects of seismic devices are described in details. It is confirmed that viscous damper devices avoid collision and reduce the frequency of collision between girders and base isolation devices reduce the influence on base of piers. It was also found that the hybrid-usage of base isolation and viscous damper devices could be effective for widening existing viaducts.

Journal

References(3)*help

See more

Details 詳細情報について

Report a problem

Back to top