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Many design specifications set upper and lower limits. In order to meet the owner’s requirements, some designs opt for very small margins of safety, operating close to those limits. I believe this poses a significant risk, as it does not take into account potential deviations that may occur during material handling, manufacturing, and operation. Once several such deviations accumulate, serious problems can arise. It’s like the bridge shown in the attached diagram; if the design took extreme weather conditions into account and made the structure taller, there would be no need for heavy vehicles to put stress on the bridge.
Some netizens said: For a plan that will last a century, it’s of course necessary to take into account some margin for flexibility; it depends on how those making the decisions proceed.
So by sticking to your responsibilities and being frugal with investments, the property owner is protected; in case of problems, the designer is held accountable
You need to consider some margin; I need to keep costs under control. Your design won’t work, so you’ve been rejected
If it’s for a meager income, consider bending over; if it’s to buy a big house, then you need to think about it
Consider both the external volume and self-weight!
Big news! Four departments issue joint statement: Hazardous chemical projects must not proceed with approval, design, and construction simultaneously. https://bbs.hcbbs.com/thread-3364021-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Forum Website)
The builder and the operator have different goals; one aims to save money by minimizing investments as much as possible within the budget; One speaks with margin. Margin, as well as the convenience and reliability for future operation and maintenance, are all matters of cost. Without money, nothing can be changed.