新增钢平台对外挂水箱的影响分析

Analysis on the influence of steel platform on external water tank

某三代核电厂外层安全壳外侧标高39.05 m^56 m之间设置外挂水箱,由于水箱是高大悬挑结构,为便于水箱施工在其下方增加钢平台。采用ANSYS有限元软件分析,从楼层谱及水箱楼板配筋两个方面分析新增钢平台对水箱的影响。计算结果表明新增钢平台对外挂水箱反应谱的影响微小,对外挂水箱配筋分布、配筋量影响也不大。

External water tank is set between the outer containment elevation of 39. 05 m ~ 56 m,and the water tank realize the natural circulation of cooling water,which further improves the safety of the power plant. In order to facilitate the construction of the water tank which is a tall overhanging structure,add a steel platform below it. This paper uses ANSYS finite element software to analyze the influence of the new steel platform on the water tank,mainly from the floor spectrum and tank floor reinforcement two aspects. The calculation results show that the influence of the new steel platform on the response spectrum and reinforcement distribution of the external water tank is small.