explain why a prefabricated steel stair is most commonly used even in buildings that are built with a reinforced concrete frame
1 answer:
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Answer:e. support reinforcing bars in beams and slabs, prior to concrete placement.
Explanation: Chairs are used for construction of foundations,large steel supports,deck constructions and for underground works. Chairs can be for rebar support ( rebar support chairs),post tension chairs.
Bolsters are usually long made of metallic materials mainly used as support for construction of different infrastructures like roads it helps to ensure the concretes and other construction materials stay firmly connected. Image 1 is a metal be chair
Image 2 is a metal bolster
Answer:
Explanation:
From the concept of Hooke's Law,
where;
Recall:
Thus, the stress in the pipe at the maximum allowable contraction = 264.6 Mpa