プレキャストコンクリートに残存する圧縮応力の影響を受けるコンクリート合成梁の断面算定法の研究

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タイトル別名
  • THEORETICAL CALCULATION METHOD OF CONCRETE COMPOSITE BEAM WITH THE PRESERVED COMPRESSIVE STRESS IN THE PRECAST CONCRETE MEMBER
  • プレキャストコンクリート ニ ザンソン スル アッシュク オウリョク ノ エイキョウ オ ウケル コンクリート ゴウセイリョウ ノ ダンメン サンテイホウ ノ ケンキュウ

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抄録

Generally, Stresses caused by loading on the precast concrete members due to their self-weights under construction are permanently preserved in the concrete composite beams. The preserved compressive stress in concrete has an effect on the equilibrium condition with respect to stresses at the composite beam section. The preserved compressive stresses decreased by loading on the beams behave themselves as the same tension ones as of its reinforcements, steel bars and PC tendons. By using this calculation method, the simulation results show that the rational continuity and the clear relationship of the stresses in the composite beams on various conditions among RC, PRC and PC are confirmed.

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