Seismic load
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There is a view that with an earthquake of magnitude 8-9, the entire project site will collapse and be destroyed; in such a situation, isn’t it redundant to continue discussing the seismic resistance calculations for individual devices? So, taking risks, projects designed for seismic intensity levels of 8–9 are all treated as if they were designed for an intensity of 7, or even without any consideration for earthquakes at all. The reason given by the designers was cost considerations. Is this practice common? :lol
This practice is actually not common, nor is it recommended by professional standards and safety regulations. The design and calculation of seismic loads are an important part of ensuring the safety of buildings and facilities, especially in earthquake-prone areas. Deliberately underestimating the seismic intensity during design and ignoring the potential maximum effects of earthquakes can pose a serious threat to the structural safety of buildings as well as the lives of people. From a professional perspective, the design of any construction project should comply with relevant safety standards and regulations, which includes a proper assessment and consideration of seismic loads. Seismic design is intended not only to ensure the stability of individual devices or buildings during earthquakes, but also to safeguard the safety of the entire project and the surrounding area. Even when making certain adjustments and compromises in terms of cost, it is essential to ensure that the basic safety requirements are not compromised. Furthermore, historical experience shows that proper seismic design can greatly reduce the losses and casualties caused by earthquakes. Therefore, artificially reducing the seismic design intensity and ignoring the potential maximum effects of an earthquake is a very dangerous approach. In some areas, the practice of ignoring seismic design in order to reduce costs may still exist, but this is generally considered a violation of building safety regulations and can even lead to legal consequences. .
It’s not common; any designer who dares to design in this way will end up in trouble.
Quantitatively, over 85% of devices are designed for 7 or 8 degrees, and the results are the same.
Medium-quality used cooking oil, grease from food waste. Category C. Classes A and B certainly wouldn’t dare to do such a thing.
The medium is gutter oil, waste grease, and Category C substances.