【摘要】 塔式钢结构等大型结构在工程中的大量应用,这些结构通常承受风载荷、横向外载荷以及本身的自重的作用,这些载荷最后都以不同形式的力作用到基座上,因此基座安全性至关重要。为了对钢结构等高耸物的基础进行强度评估,提出了利用有限元法模拟高耸物对基础的作用力和力偶,再利用液压等手段将数值仿真得到的力和力偶施加于现场基座上,采用电测实验法对基础进行现场应变、应力测试,以保证大型结构高耸物在工作载荷和风载情况下能够安全工作。通过研究,为类似结构安全运行和评估提供了计算方法和手段。更多还原

【Abstract】 Steel structures of tower are widely applied in engineering.These structures usually subject to wind loads,transverse loads and dead weight,which may effect on the foundation with different forms.So,the safety of foundation is crucial.In order to evaluate the foundation strength of steel structure and other high-rise structure,the action force and couple of high-rise structure on foundation simulated by finite method is put forward.Then,the force and couple obtained by finite element method shall be put on the foundation by hydraulic system.By adopting electric measure the foundation strains and stress are tested in order to guarantee safety operation of high-rise structure subjected to work load and wind load.The calculating method and technique in it can be also reference for the safety operation and evaluation of other similar structures.更多还原