CREEP ANALYSIS OF CONTINUOUS GRILLAGE COMPOSITE GIRDERS

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  • 連続格子合成げたのクリープ解析
  • レンゾク コウシ ゴウセイゲタ ノ クリープ カイセキ

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Abstract

Continuous grillage composite girders are statical indeterminate to a high degree, and they are completed by multi-stage constructions which involve variations of composite section and structural system. In these structures, suitable analysis of time-dependent change in forces and deformations due to creep and shrinkage, are not proposed yet. An analysis combined with the step-by-step method and the stiffness matrix method is proposed in this paper. Furthermore, the composite section is composed of plural concrete section and steel section which have different mechanical properties. The auther reports the result of calculations on a two-span continuous grillage PC composite girder under service load condition and discuss them in this paper.

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