Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 21)
21.
Construction joints are provided
Discussion:
11 comments Page 2 of 2.
Deepak raj joshi said:
2 months ago
@Shishpal : You’re right, at some points, bending moment (BM) is minimum (often zero), But at those same points, shear force (SF) is maximum, like supports of a simply supported beam.
So, we do not provide construction joints exactly at points of minimum BM if SF is high, we must find a balance between both i.e. moderate values. In the beam, at L/3 from the support, both BM and SF have moderate values, hence the best compromise location for the construction joint. Engineers should carefully select joint locations based on B.M. And S.F. Diagrams.
So, we do not provide construction joints exactly at points of minimum BM if SF is high, we must find a balance between both i.e. moderate values. In the beam, at L/3 from the support, both BM and SF have moderate values, hence the best compromise location for the construction joint. Engineers should carefully select joint locations based on B.M. And S.F. Diagrams.
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