适当的抗震设防要求对工程抗震具有十分重要的意义。我国《工业与民用建筑抗震设计规范》规定:工业与民用建筑物经抗震设防后,在遭遇相当于设计烈度的地震影响时,建筑物的损坏不致使人民生命财产和重要生产设备遭受危害,建筑物必须修理或经一般修理仍可继续使用。并规定建筑物的设计烈度,一般按基本烈度采用。这是编制设计规范的指导思想,也是当前抗震设计的设防原则。根据这个原则,建筑物遭遇一般预期的地震烈 Appropriate seismic fortification requirements are of great significance to the earthquake resistance of the project. China’s “Code for Seismic Design of Industrial and Civil Buildings” stipulates that: When industrial and civil buildings are subjected to seismic fortification, they will not cause damage to people’s lives, property, and important production equipment when they encounter earthquakes equivalent to design intensity. The object must be repaired or it can be used after it has been repaired. It also stipulates that the design intensity of buildings is generally adopted in accordance with the basic intensity. This is the guiding ideology for the preparation of design specifications, and it is also the fortification principle of current seismic design. According to this principle, buildings suffer from generally expected earthquakes