CAJ | 학술논문

针对氯盐环境下氯离子侵蚀预应力混凝土结构这一耐久性问题,介绍了国内外有关混凝土氯盐侵蚀模型的研究成果,分析评价了几种典型的扩散方程,并改进了预应力混凝土氯离子侵蚀模型.以氯离子扩散速度、表面氯离子浓度以及保护层厚度为分析变量建立了耐久性可靠度分析模型.应采取综合措施提高预应力混凝土耐久性.
침대록염배경하록리자침식예응력혼응토결구저일내구성문제,개소료국내외유관혼응토록염침식모형적연구성과,분석평개료궤충전형적확산방정,병개진료예응력혼응토록리자침식모형.이록리자확산속도、표면록리자농도이급보호층후도위분석변량건립료내구성가고도분석모형.응채취종합조시제고예응력혼응토내구성.
With regard to the durability problem of prestressed concrete structure under chlorine ion erosion,progress and achievement of modeling of chloride ingress at home and aboard were summarized,and several typical diffusion equations analyzed,and the prestressed concrete chloride ions erosion model improved.By taking chloride diffusion velocity,surface chloride concentration and thickness of concrete cover,as Analysis variables,the durability reliability analysis model was established.It was proposed that comprehensive measures should be taken to improve the prestressed concrete durability.