H.W6: 1- discuss the stability and determinacy of the following structure 2- Draw N, V and M diagrams for part BCD A 2m F water 4m G 2m B E 2m water HCI 2m 2m 2m 2m D 4m
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- Pls dont round off intermidiate values, round off in final ans only ty(x* + 3x – 4)(x² –9) h: y=- - 4. (x² +x-12)(x+3)D 4 m 2 m 1.5 m 2.5 m 2 m 1m 0.5 m B The assembly above consists of straight members forming a pyramid structure, as shown. The unit vectors for members AC and AD are as follows: UAc = {0.707i - 0.707j} • UAD = {0.530i + 0.848k} %3D Which of the following is closest to the angle between members AC and AD? a) 74.3° b) 1.19° c) 68.0° d) 90.4°
- MI² 8 =- 16EI at the centerB 6m LP P -8m- -8m- -8m -8m In the bridge truss shown in figure, the end chord AB is composed of two C 230 x 30 channels latticed together so that the fabricated section has equal moments of inertia about the axes of symmetry. Properties of C 230 x 30 Ix = 25.5 x 10^6 mm^4 A=3800 mm^2 %3D a. Determine the slenderness ration of section AB. b. Determine the capacity of member AB. c. If the safe load P on the truss is governed by the strength of member AB, which of the following gives the value of P using NSCP Specifications with Fy = 290 MPa. %3DFind static indeterminacy for all structures please. Ns, Nse(exterior), Nsi(interior)
- In the bridge truss shown, the end chord AB is composed of two C 230 x 30 channels latticed together so that the fabricated section has equal moments inertia about the axes of symmetry. Fy=290 MPa Properties of one C 230 x 30 Ix=25.5x105 mm² A = 3800 mm² B VP P CHIL ENGINEERING-STEEL DESIGNDETERMINE THE FORCES ACTING IN MEMBERS CD, CH AND BJ. K J I H G 4 ft A B C ID E -3 ft 3 ft 3 ft 3 ft 3 ft → F 1500 lb 1500 lb 1500 lb 1500 lb 1500 lbA beam is subjected to equal bending moments of M₂ = 2800 N.m. The cross-sectional dimensions are b = 150 mm, c = 27 mm, d = 72 mm, and t = 8 mm. Determine: (a) the centroid location (measured with respect to the bottom of the cross-section), the moment of inertia about the z axis, and the controlling section modulus about the z axis. (b) the bending stress at point H. Tensile stress is positive, while compressive stress is negative. (c) the bending stress at point K. Tensile stress is positive, while compressive stress is negative. (d) the maximum bending stress produced in the cross section. Tensile stress is positive, while compressive stress is negative. M₂ M₂ (typ) b H K