Steel headframes are widely used in vertical lifting in large and medium-sized coal mines due to the excellent structural performance.In order to study the layout selection,stress analysis,load combination and other design points of the design of the four inclined column steel derrick,an actual project was taken as an example,the same model was calculated using the partial coefficients of different specifications,and the results were compared.The results indicate that designing according to the new standard's sub coefficients is safer and can be used as a reference for similar projects.At the same time,suggestions were put forward to attach importance to the preliminary scheme design,and to carry out parametric and modular design.
关键词
钢井架/破断力/工作荷载/分项系数/应力比
Key words
steel headframe/breaking force/working load/partial factor/stress ratio
维普
万方数据