A truss made from ASTMA36 steel is used to carry vehicular traffic. The diagonal compression members are made from two L 8 x 6 x 2 angles with a 3/8 in gusset plate between them as shown in Figure 2. The long legs of the angle are back-to-back. The controlling slenderness ratio, KUr is 110, and the effective length, Klx, is 23 ft. Calculate the critical compressive stress. Hint: the legs of the angle are unstiffened elements. two L8 x 6 x angles in gusset plate (not to scale)

Q: Find the stresses in members BC BD and CF for the truss shown. Indicate the tension or compression.…

A: We will use method of joints

Q: Given the truss and loading shown below, determine the stress at member Al if Pu = 18.375 Kips and…

A:

Q: A PROB. 1.8-12 a 2P B (a) D XII Gusset plate Rivet (b) Section

A:

Q: A W18 x 40 standard steel shape is used to support the loads shown on the beam. Assume P = 29 kips,…

A: Answer  We know that maximum bending stress occur in a beam at extreme fibres and it can be…

Q: Set P₁ = 1.6 kN and P₂ = 1.2 kN. (EFigure 1) Figure 30° 3 m D P 30/ 3m P₂ ▼ Determine the force in…

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Q: For the steel truss and loading shown, determine the deformation (in inches) of member BD, knowing…

A: First calculate the member force in BD using the method of sections. Then using the HOOKES  formula…

Types and properties of steel

Steel is an alloy of iron. It is formed by heating iron and combining carbon (0.1-1.7%) with it and minor amounts of other elements such sulfur,  chromium, manganese, nickel, etc. Thousands of steel grades have been published, registered, or regulated around the world, each with its chemical composition, and special numbering systems have been devised in various countries to classify the vast number of alloys.