The Dynamic Performance of R.C. Frame-bent Main Building in Large-scale Thermal Power Plants including Roof System

摘要：

　　The roof system of turbine hall in large-scale thermal power plants is often simulated by approximate rig id beam model.Wenchuan earthquake again revealed the frequent destruction of roof system.The integral fi nite element model of the R.C frame-bent main building in large-scale thermal power plants is established based on ANSYS, which includes three kinds of general roof system as space grid, trapezoid steel roof truss and the R.C mansard roof truss.Furthermore, the dynamic properties and global deformation of the frame bent building with general roof systems are discussed, which are compared with those of approximate rigid beam model.The results indicate a significant vibration of roof system and an aggravating torsion effect of the R.C frame-bent main building.The seismic behavior of the space grid is excellent while the R.C mansard roof truss is relatively weak.Although the structure can avoid collapse under strong earthquake, the buckling failure of the roof system due to the torsion effects cant be ignored.

作者: Lizhe Jia Deshen Chen

作者单位: Department of Civil Engineering, Harbin Institute of Technology at Weihai, Weihai China

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 513-518

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）