Building Structure Temperatures
Building Structure Temperatures
(OP)
Is there any data out there on the year-round temperature of a building's internal structure?
I am located near Toronto, Canada (temperatures -30°C to +40°C). I am starting on the design of a large, accurate optical fixture, and I am trying to sort out thermal expansion and contraction. Does interior structure approximate the building's internal air temperature, or is it strongly influenced by outside temperature?
I am trying to figure if I have a potential solution or a potential problem.
I am located near Toronto, Canada (temperatures -30°C to +40°C). I am starting on the design of a large, accurate optical fixture, and I am trying to sort out thermal expansion and contraction. Does interior structure approximate the building's internal air temperature, or is it strongly influenced by outside temperature?
I am trying to figure if I have a potential solution or a potential problem.
JHG






RE: Building Structure Temperatures
If an optical fixture and for outwards exposition you will have however a different situation because the ambient temperature will be affected by the continnuous aperture to external air if such. You may have, at least, radiative cooling etc and the mirror or whatever may need some special specifications (that you should try to obtain from the client); I think they are very sensitive to these issues and have studied (at least for the optical components) since minor changes of shape enters aberration to the device what is usually unwanted, and what these low tolerances to shape change (not to say to control of internal stresses of big mirrors) have of importance has some translation to structural requirements of precision and stiffness for structural components, say, vibration control.