This paper is motivated by the need for hoisting the control room of nuclear power plant into prefabricated basic space as is desired, and ensuring that the bottom angle of the hoisting process is no more than 0.115°.The study involves selecting the welded H-beam for the hoisting balance system architecture;using the combination of the level sensor, hydraulic jack and flexible steel strand to achieve the synchronous balance of lifting point height;and performing the finite element analysis of the lifting frame and load simulation test.The results show that the balance beam has a maximum stress of 223.050 MPa, less than the material allowable stress value;the lifting chassis has a maximum stress of 160.000 MPa, less than the yield limit, behaving as elastic deformation;the hoisting beam axis and hole has a maximum tensile stress of 171.000 MPa,and the maximum compressive stress of 217.585 MPa, with the contact stress value of less than the material yield limit, manifested as the edge effect;and the hoisting system offers a maximal displacement variable of 3.46 mm, conforming to the deflection value as is required by the crane design specification.The test of the load and leveling for the hoisting system indicate that the design is reasonable, safe and reliable for the hoisting system for the nuclear power control plant.%为使核电站控制厂房整体平稳吊入限定的预制基础空间内,保证吊装过程中底面倾角不大于0.115°,设计了吊装平衡系统构架为焊接H型钢截面梁,利用高度传感器与液压千斤顶和柔性钢绞线组合方式实现吊点高度同步调平.对吊装构架进行有限元分析和模拟加载试验.结果表明:平衡梁最大应力223.050 MPa,小于材料许用应力值.吊装底架最大应力160.000 MPa,小于材料屈服极限,为弹性变形.吊装梁轴、孔接触最大拉应力171.000 MPa、最大压应力217.585 MPa,接触应力值小于材料屈服极限,表现为边缘效应.吊装系统最大位移变量3.46 mm,符合起重机设计规范要求的挠度值.吊装系统加载及调平试验,验证了核电站控制厂房吊装系统设计合理、安全可靠.
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