Differentiate between stiffness method and flexibility method.
[7 marks]Analyze the propped cantilever beam as shown in Fig.1. by flexibility method.
[7 marks]Explain various types of skeletal structures.
[7 marks]Analysis the beam as shown in Fig. 2 using the flexible method choose Ras B redundant.
[7 marks]Define the terms: shape factor, plastic hinge, load factor, collapse load, plastic section modulus, dome, plastic hinge.
[7 marks]Aroof of a hall having diameter 20 m is to be covered by a conical dome of 100mm thickness and 4 m rise. Assuming Live load and other loads as 1.5kN/m2, Calculate stresses in the dome
[7 marks]List various uses of domes. What are the loads acting on domes?
[7 marks]Explain types of domes with neat sketches and state their uses.
[7 marks]Derive an expression for Mand Tfor a curved beam fixed at the ends. ɸ ɸ
[7 marks]Give the uses of curved beams.
[7 marks]Acurved beam circular in plane symmetrically supported on six columns has radius 4 m. the bean carries a uniformly distributed load 2 kN/m, including self- weight of beam. Determine the shear force, bending moment and twisting moment at important location.
[7 marks]Distinguish between a straight beam and a beam curved in plan.
[7 marks]Aspherical dome with a span of 15m and central rise of 3m has all inclusive load of 10kN/m2. Calculate all the stresses at the mid height.
[7 marks]Determine the shape factor for a rectangular beam of width b and depth d.
[7 marks]What is plastic hinge? In what way is it different from an ordinary hinge?
[7 marks]State the assumption made in plastic design.
[7 marks]Afixed beam of 6m span carries a uniformly distributed load of 175kN/m over the left half of the span. Determine the fully plastic moment for the beam. Also calculate plastic section modulus required. F =250MPa. y 60 kN/m 40 kN/m A B C A B C (I) (2I) 2 m 2 m 2 m 3 m 1 Fig.1 Fig.2
[7 marks]