MIDAS/Gen和STAAD在独立避雷针设计中的比较  

Analysis Comparison of the Independent Steel Pipe Lightning Rod between MIDAS/Gen and STAAD

作　　者：国伟[1] 穆德君[1] 盖超[1] 

机构地区：[1]山东电力工程咨询院有限公司,山东济南250013

出　　处：《企业科技与发展（下半月）》2013年第2期11-13,16,共4页

摘　　要：为研究单杆式钢管独立避雷针在MIDAS/Gen和STAAD2种软件下计算结果的差别,对实际工程中的40m避雷针建立了模型,并对模型进行了施加横向均布荷载的受力性能分析。分析结果表明,2种软件对于顶端竖向单元所受横向均布荷载具有不同的处理方式,在弯矩、应力及位移的计算结果上存在一定的误差,MIDAS/Gen的计算值均比STAAD略大,且在避雷针结构的钢管厚度及管径变化时会发生应力突变。因此,在独立避雷针的设计工作中,MIDAS/Gen的结构分析更为安全和保守,可以为STAAD的计算结果提供很好的参考价值。In order to study the differenees of the analysis result between MIDAS/Gen and STAAD about the independent steel pipe lightning rod, models of a 40 m-lightning rod was built according to the practical project in two software, which apply the transverse distributed loads to the model. The analysis results indicated thai the two software eonsider the transverse distributed loads applied to the top vertieal element with different modes, the resuh of MIDAS/Gen is little bigger than STAAD ahout the calculation of bending moment, stress and displacement, and stress mutatiou occurs when the thickness and diameter of steel pipe ehauged suddenly. Therefore. in the design of the independent lightning rod, the struetural analysis of MIDAS/Gen is more conservative and safer compared with STAAD, good referenced value could be offered to STAAD by MIDAS/Gen on the aspect of analysis resuhs.

关 键 词：避雷针 MIDAS GEN STAAD 横向均布荷载 

分 类 号：TU271.9[建筑科学—建筑设计及理论]