uestion 1 Consider the portal frames of Figure 1 having unequal beam and columns, and carrying horizontal and vertical...
uestion 2 Consider the portal frame of Figure 2 having unequal beam and columns (Mu- 240kNm for the columns, Mu-720kNm for the girder), and carrying a horizontal load 40λ (kN) and a vertical load 60λ (KN). a) Find all possible "simple" and "combined" collapse mechanisms for the considered external loads. b) Find the loading factor you have identified. corresponding to the collapse loads of the various mechanisms c) Which of the collapse mechanisms you have found in a) is the...
Q2 The portal frame carries vertical and horizontal forces as shown in the figure below. If Mp is equal to 80 kNm determine the upper and the lower load factors against collapse. Consider at least 2 combined mechanisms. 30 kN/m 2 m 3 m 100 kN 2M 2 m 2 m Q2 The portal frame carries vertical and horizontal forces as shown in the figure below. If Mp is equal to 80 kNm determine the upper and the lower load...
Im mostly interested in question C but you might need the other questions to get the answers 4. Consider the portal frame illustrated in Figure 04. The frame is subjected to two point loads as shown. The two vertical members have a plastic moment capacity 2.M, while the horizontal member has a plastic moment capacity M,. Use the Virtual Work Method to answer the following questions: (a) Identify all collapse mechanisms and calculate their corresponding load combinations. 10 marks) (b)...
(a) The H-beam is made of an elastic-plastic material for which σy = 400 MPa. Find the plastic moment Mp and the maximum elastic moment Me and determine the shape factor for the cross section of the H-beam. Also, determine the residual stresses in the top and bottom of the beam after the plastic moment MP is applied and then released. (b) The continuous beam shown in Figure is made of the same cross section as in part a and...