The Three Span Continuous Beam Shown Below is
Question
Structural Analysis
a) A three span continuous beam is shown in Figure Q2(a) overleaf. The beam has a constant cross-section over all spans and is subjected to factored loading as shown.Referring to Figure Q2(a):
Determine the required fully plastic moment capacity, Mp, for both SPANS(1)B-C and C -D, by examining the mechanisms associated with the plastic collapse of these two spans.10 marks)
(1i)be 60 kNm, determine the value of the point load, P, applied to this span in order to achieve this If the fully plastic moment capacity, Mp, for SPAN A – B is constrained to
Noting the values of Mp from parts (i) and (ii), and making use of the(ii)Universal Beam Tables given in Appendix C, select the most suitable section for the continuous beam. The structural steel used for the beam possesses a yield stress of 275 N/mm2.
b) Determine the value of the plastic section modulus (Sx) about the X-X axis for the beam cross-section depicted in Figure Q2(b) overleaf. Quote the value you obtain in cm
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