Regarding tower equipment with ear-seat support for hanging floor slabs
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I would like to ask the experienced colleagues: For tower equipment supported by ear mounts and mounted within a frame, but with a height of over 20 meters and its upper part extending outside the frame, is wind load and seismic load taken into account in the design of such equipment? Our company’s management said that this issue should be handled by the equipment specialists who are responsible for the structural design, taking into account the horizontal forces caused by wind and seismic loads. Our chief equipment engineer said that the equipment specialists do not consider such factors; the equipment design is based on indoor design standards. How do people usually deal with situations like this?
The chief engineer is really amazing – indoor equipment that’s over 20 meters tall\ud83d\udc2e20……
Such equipment is generally designed in accordance with interior design principles; this aspect is not taken into consideration. If your supervisor doesn’t understand but pretends to do so, then present it to him as a tower-type equipment of the outdoor skirt foundation type
Is this device meant to be used indoors or outdoors? Wind load needs to be taken into consideration when it’s used outdoors, but of course not indoors; it’s that simple
Actually, everything mentioned is relevant. Generally, for towers supported by internal bracings within such a framework, the seismic loads need not be considered; they can be treated as if they were in an indoor environment. The wind load aspect is more complex; even when treating it as if it were in an indoor environment, there are still loads to take into account； Saying to consider it based on outdoor conditions isn’t entirely reasonable. In such cases, tower hoops are usually installed on other levels of the frame supports, and the displacement is determined by calculating the deflection under actual wind loads. However, it’s indeed not necessary to impose any specific conditions on the structure
Seismic loads within such a framework can be ignored, but as for wind loads, if it is merely a framework structure, I think they should still be taken into consideration; if it is entirely indoors, then they can be ignored. If the supervisor insists on mentioning it, you can also propose one for the structural design based on tower equipment supported by outdoor skirt foundations