大型锅炉框架式基础的抗震设计

在大型锅炉框架式基础的设计中,不仅要考虑满足结构承重的要求,而且要将地震作用作为设计中的主要作用之一予以重视。通过工程实例、两种计算方案的比较说明了是否考虑地震作用对框架式基础的计算结果所产生的巨大差异,并给出了提高基础框架抗震能力的各项措施的计算方法。

During designing a frame-foundation of big boilers, not only the request to take on the weight of the structure should be fulfilled, but also the significance to regard earthquake load as one of main loads should be noticed. Whether merging earthquake action into loads combination or not will lead to two different results.Through a project example to compare two calculational methods, the authors find the large difference between these two results. At the same time, the authors put forward the calculational methods to improve the capability of the frame which resists the earthquake action.