工业用渣仓结构疲劳性能分析

基金项目:

装配式钢结构建筑关键技术研究与应用（201815K）；国家自然科学基金项目（51279206）。

ANALYSIS ON THE FATIGUE PROPERTIES OF INDUSTRIAL SLAG BIN

1. Central Research Institute of Building & Construction Co., Ltd., MCC Group, Beijing 100088, China;
2. CSIC International Engineering Co., Ltd., Beijing 100121, China;
3. Tianjin Xingang Shipbuilding Heavy Industry Co., Ltd., Tianjin 300452, China;
4. College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China

摘要: 渣仓是火力发电厂排渣系统中重要的存贮设备，为研究其疲劳性能，以实际工程中某渣仓为例，采用大型通用有限元软件，考虑接触问题，建立有限元模型，详细分析了其荷载工况并确定加载方式，计算并获得了该渣仓结构应力与位移，在此基础上对筒仓部分进行了疲劳寿命计算。研究结果表明：加密肋板附近的筒体处应力最大，其值为349.5 MPa；靠近环梁及加密肋板的位置易疲劳，在循环2.495×10³次后发生疲劳破坏。
- 渣仓 /
- 力学性能 /
- 疲劳寿命 /
- 有限元分析
Abstract: The slag bin is an important storage device in the slag discharge system of thermal power plants. In order to study its fatigue properties, a slag bin in an actual project was taken as an example, and a large-scale finite element software was used to establish a finite element model considering contact. The load conditions were analyzed in detail to determine the loading mode, and the structural stress and displacement of the slag bin were obtained. On this basis, the fatigue life of the slag bin was calculated. The result showed that the cylinder of the encryption rib had the maximum stress which value was 349.5 MPa. The fatigue damage was prone to occur near the ring beam and the encryption rib after 2.495×10³ cycles.
- slag bin /
- mechanical properties /
- fatigue life /
- finite element analysis