CARR堆反应堆厂房结构分析与密封设计

CARR厂房为典型短周期结构,是由不同结构形式和不同材料结构单元构成的复杂结构体系.部分结构整体内力分析采用Algor程序,厂房结构局部应力分析采用ANSYS程序,预应力混凝土结构计算采用PREC程序.分析计算表明,结构的最大位移发生在侧墙的中部,打压状态下的位移量约为2.28mm.应力较大的部位发生在顶板与侧墙、侧墙与楼板交接部位及两面侧墙的交角处,最大应力为2.7MPa.大梁计算挠度为13.5mm,反拱值为7.5mm,预应力度为0.745.为了控制钢筋混凝土构件的裂缝,屋面部分采用预应力混凝土结构.选用环氧树脂加玻璃布涂装衬里为密封厂房的内衬方案.

Structure Analysis and Sealing Design of Reactor Building for China Advanced Research Reactor

CARR building is a typical structure of short-term cycle, which is a complex consisted of various structural types and structural cells of different materials. Integrated internal force of the partial structure is analyzed by Algor code, local stress of the building structure is analyzed by ANAYS code, and calculation is carried out for the pre-stressed concrete structure by PREC code. The analysis and calculation show that the maximum displacement of the structure occurs in the middle of the side wall, and the displacement under hit is about 2.28mm. The parts with larger stress are the interfaces between the top plate and side wall, the side wall and the floor plate, and the side walls. The maximum stress is 2.7MPa. Calculated deflection of the girder is 13.5ram, camber is 7.5ram, and pre-stress is 0.745. In order to control the crack of the reinforced concrete components, partial roof is made of pre-stressed concrete structure. The inner liner for sealing of the building is expoxy and glass fabric.