SEISMIC RESPONSE ANALYSIS AND VIBRATION CONTROL BY TUNED MASS DAMPER OF OVERHEAD CATENARY SYSTEM POLES ON SHINKANSEN VIADUCTS

DOI Web Site Open Access

Bibliographic Information

Other Title
  • 新幹線高架橋上の電車線柱の連成系地震応答解析およびTMDによる震動制御

Description

 In the Great East Japan Earthquake, the high speed train (Shinkansen) operation system had stopped for long time, because a large number of overhead catenary system poles (OCS-poles) of pre-stressed concrete on Shinkansen viaducts had fell down even though the viaducts were not severely damaged. Thus, the seismic performance of the OCS-poles should be clarified and improved shortly by realistic techniques. In this study, firstly building a three-dimensional coupled frame model of four-block Shinkansen viaducts including OCS-poles and catenary cables, seismic response analysis was conducted and the dynamic response properties of the viaducuts and OCS-poles have clarified. Secondly, based on those results, a vibration control technique using TMD to ease damage of OCS-poles was proposed. Finally, conducting some simulations and referring to various material on TMD, the advantage of the proposed technique to the conventional ones improving seismic performance of OCS-poles in terms of function, cost, workability and maintenance was shown.

Journal

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top