Question

The reinforcement in an RC structure, such as a steel bar, has to undergo the same strain or deformation as the surrounding concrete in order to prevent discontinuity, slip or separation of the two materials under load.

(a) True

(b) False

I got this question in an online quiz.

I'd like to ask this question from Earthwork, Concrete and R.C.C. work in chapter Rules and Methods of Measurement of Civil Engineering Drawing

Answer 1

Right answer is (a) True

To explain I would say: Maintaining composite action requires transfer of load between the concrete and steel. The direct stress is transferred from the concrete to the bar interface so as to change the tensile stress in the reinforcing bar along its length, this load transfer is achieved by means of bond (anchorage) and is idealized as a continuous stress field that develops in the vicinity of the steel-concrete interface.