核电站安全壳混凝土结构长期预应力预测模型初步研究
핵전참안전각혼응토결구장기예응력예측모형초보연구
Primary research on nuclear power station containment concrete structure long - term prestress forecasting model
  • 万方数据
    混凝土 혼응토
    CONCRETE
    2015年 5期 140-144 ,共5页

    廖开星%李毅%孔祥龙%汤志杰%遆文新

    료개성%리의%공상룡%탕지걸%제문신

    安全壳%预应力%长寿期运行 安全殼%預應力%長壽期運行
    안전각%예응력%장수기운행
    containment%pressing%long term operation
    基于 ACI209R -92、CEB - FIP（1990）、GL2000收缩与徐变模型基础，充分考虑了混凝土的收缩、徐变和预应力钢筋松弛的耦合作用后推导出安全壳长期预应力预测的计算模型。通过计算分析，其中基于 CEB - FIP（1990）模型的预测值与实测值更为接近。采用3000 h 内的预应力监测值修正模型后，该模型对长期预应力值的预测更为合理。该研究成果为核电站的长寿期运行提供了很好的技术支撑。
    기우 ACI209R -92、CEB - FIP（1990）、GL2000수축여서변모형기출，충분고필료혼응토적수축、서변화예응력강근송이적우합작용후추도출안전각장기예응력예측적계산모형。통과계산분석，기중기우 CEB - FIP（1990）모형적예측치여실측치경위접근。채용3000 h 내적예응력감측치수정모형후，해모형대장기예응력치적예측경위합리。해연구성과위핵전참적장수기운행제공료흔호적기술지탱。
    It provided a formulas for calculating the pressing value of the containment,which was deduced on considering the influence of concrete dry shrinkage,creep and the relaxation of prestress strand coupling effect basing on ACI209R - 92,the CEB - FIP(1990), GL2000 shrinkage and creep model.Through calculation and analysis,the prestress value calculating based on CEB - FIP(1990)model is more close to the measured values.The model corrected by using prestress strand monitoring value within 3 000 h,and the prestress value predicted of this model is more reasonable.The results are a good technical support for long term operation of the nuclear power plants.
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