Kutukov B.N. 1990 Task 5 Option 020

For given two schemes of beams, it is required to write expressions Q and M for each section in general form, to plot the Q and M diagrams; find МMAX and select: a) for the scheme (a) a wooden beam of circular cross-section with [σ] = 8 MPa; b) for the scheme (b) a steel beam of I-section with [σ] = 160 MPa. Given: scheme 10; ℓ1 = 1.2 m; ℓ2 = 10 m; a1 / a = 10; a2 / a = 8; a3 / a = 5; M = 10 kNm; P = 20 kN; q = 10 kN / m.