论文部分内容阅读
用FRP内筒与钢外筒一起组成套筒式新型复合材料烟囱结构。然而,玻璃钢复合材料烟囱结构的分析较为罕见,目前还没有相应的设计规范,其设计和计算较为困难。结合ANSYS有限元分析软件应用振型分解反应谱法研究钢外筒-FRP内筒复合材料烟囱结构在地震作用下的动力特性和地震响应,应用Tsai-Wu强度比理论对其进行了校核,并与相同结构尺寸的钢烟囱在相同地震作用下的响应结果进行了对比分析,探讨该新型烟囱结构的优势与可行性,为其抗震设计提供可靠的参考。
The FRP inner cylinder and the outer cylinder together form a sleeve-type new composite chimney structure. However, the analysis of fiberglass composite chimney structure is relatively rare, there is no corresponding design specifications, the design and calculation is more difficult. Combined with ANSYS finite element analysis software, the vibration mode decomposition response spectrum method was used to study the dynamic characteristics and the seismic response of the steel outer tube-FRP chimney composite chimney structure under earthquake action. The Tsai-Wu intensity ratio theory was used to check the dynamic characteristics and seismic response. And compared with the response results of steel chimneys of the same structural size under the same earthquake. The advantages and feasibility of the new chimney structure are discussed, which provide a reliable reference for the seismic design.