A STUDY ON DEVELOPING DESIGN-STRENGTHENING SUPPORT SYSTEM FOR COMPOSITE PLATE GIRDER BRIDGES USING THE EXTERNAL PRESTRESSING TECHNIQUE

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  • 外ケーブルプレストレス補強設計のシステム化に関する研究
  • ソト ケーブルプレストレス ホキョウ セッケイ ノ システムカ ニ カンスル ケンキュウ

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Abstract

The Prestressing technique with external tendons (EPS technique) have been regarded as widely applicable technique to bridge structure systems for both of the new construction and strengthening. It is recently noticed in Japan that the EPS technique is one of efficient methods for strengthening of existing bridges, then several attempts have been done on the strengthening application to not only concrete bridges, but also composite girder bridges. So the necessity of developing a computer aided design system based on CAE concept has been lately pointed out for the design-strengthening works using the EPS technique to existing composite girder bridges. In this paper, a Design-Strengthening Support System for Composite Plate Girder Bridge using the External Prestressing Technique, DSSEPT, newly developed in order to attempt to make rational design-strengthening work processes is described.

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