核岛屏蔽厂房进气口段等效模型的应用研究  

THE APPLICATION STUDY OF EQUIVALENT MODEL OF AIR INLET SECTION OF NUCLEAR SHIELDING PLANT

作　　者：魏超[1] 周国良[1] 唐晖[1] 

机构地区：[1]环境保护部核与辐射安全中心,北京100082

出　　处：《工业建筑》2015年第9期22-24,共3页Industrial Construction

基　　金：国家科技重大专项课题资助(2011ZX06002-10-16)

摘　　要：核岛屏蔽厂房通常采用钢板混凝土的结构形式,在屋顶上部设有进气口段,由于在结构形式上存有开孔,常会给后续有限元的计算分析带来困难。针对核岛屏蔽厂房抗震计算的需要,对进气口段采用等效弹性模量折减分层壳单元模型来进行模拟,从而在准确模拟钢板混凝土各层组合连接的基础上,近似模拟开孔对整个进气口段结构的影响。结果表明:该进气口段等效模型能够很好地解决进气口段开孔在结构形式上的分析困难,并且计算结果合理准确。The structure,of steel concrete is usually used for a nuclear shielding building and there is an air inlet section on the top of roof. The opening on the structure often brings many difficulties to the computational analysis of subsequent finite elements. Considering the needs of the anti-seismic calculation of nuclear shielding building, the air inlet section was simulated by using the equivalent elastic modulus reduction multi-layer shell element model, so as to conduct approximate simulation of the influence of opening on the structure of air inlet section based on the accurate simulation of the built-up connection of steel concrete. The results showed that the equivalent model of air inlet section could well resolve the analysis difficulty of the opening of air inlet section on the structure, and the calculation results were reasonable and accurate.

关 键 词：进气口段 钢板混凝土 分层壳单元 折减系数 

分 类 号：TU398.9[建筑科学—结构工程]