When burning, Yes.
A normal fire in a steel-frame building can soften the structure to the point of collapse.
Building laws / regulations require that all the structural steelwork is either covered in a protective coating (such as intumescent paint) or boxed in with fire-resistant plaster, so the fire can be extinguished before the building is weakened - or at least give people time to get out.
If that coating or plaster is damaged by impact or an explosion, the steel is exposed and the building can collapse relatively quickly.
(The common intumescent coatings just look like paint until exposed to fire, so the steelwork may appear to have no particular protection - but it always does).
Information:
http://www.steelconstruction.info/Fire_p...
See the images below - small buildings with steel-frame roofs after fires; you can see the amount of "sagging" and distortion on structures that have no particularly high loads.
These have burned long enough to destroy any protection, or they did not have any as the structure does not support occupied space.
http://www.champnews.com/Picture_Library...
http://thelincolnite.co.uk/wp-content/up...
The correct answer is D. Municipal wastewater treatment plant.
Explanation
The wastewater treatment is a set of processes that allow giving an adequate end to the wastewater of different practices including normal household use, agricultural practices, construction, livestock, washing, among others. In the case of wastewater from agricultural practices, the correct process for these waters is in a municipal wastewater treatment plant because there are specific processes to treat these waters and reuses or disposes of them properly, avoiding their discharge into rivers, groundwater, or seas producing pollution caused by the high load of agricultural chemicals they have. Therefore, the correct answer is D. Municipal wastewater treatment plant.
Answer: submitting the first draft of the federal budget to Congress
Explanation:
The 1921 Budget and Accounting Act gave the president the power to make the first bid by proposing to Congress the budget for the next fiscal year.
Answer: The benefits of workplace design and risk assessment
Explanation:
Answer:
the Red Sea
Northeast Africa, or Northeastern Africa or Northern East Africa as it was known in the past, is a geographic regional term used to refer to the countries of Africa situated in and around the Red Sea.
Explanation:
