Figure 1 shows the cross-section of a heavily welded I-section steel column unde compression. The yield stress of the steel section is 300 MPa. (a) Check the slenderness of the flanges and webs. (b) Determine the effective and gross areas of the cross-section. (c) Determine the design axial capacity of the cross-section. 380 E 10 425 8
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- The light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the load P 20 KN is applied. Shool E-200 GPa A-600mm- L-1 m 2.0 m 0.6 m 1.5 m D. VP-20 KN Aluminum E-70 GPa A-900mm L-1.5 m What is the axial deformation of steel rod in mm?The light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the load P = 20 KN is applied. Steel E200 Gra A-600mm L-I m 2.0 m 0.6m 1.5 m D. V P-20 KN Aluminum E-70 GPa A-900mm L-1.5 m What is the axial load at aluminum rod in KN?A flexural member is fabricated from two flange plates 1/2x16 and a web plate 1/4x20, thusforming a built-up ‘I’ shape member. The yield stress of the steel is 50 ksi.a. Compute the plastic section modulus Z and the plastic moment Mp with respect to the majoraxis.b. Compute the section modulus S and the plastic moment My with respect to the major axis
- The 2014-T6 aluminum rod AC is reinforced with the firmly bonded A992 steel tube BC. When no load is applied to the assembly, the gap between end C and the rigid support is 0.5 mm. Determine the support reactions when the axial force of 400 kN is applied. 400 mm 400 kN B A992 steel 50 mm 800 mm 25 mm 2014-T6 aluminum alloy Section a-a -400(10*) N st (a)Two circular shafts are joined together between fixed supports to resist a torsional moment of 80 kN-m as shown. Determine the absolute value of the maximum torsional shear stress of the hollow steel shaft (in MPa). 20 IN-m Sm stcel hellw circalar duminum Selid circular D= 75 mny Do- IDO mn D> 80 mm G- D GPon 6- IS0 EPaAuniform bar 1 is connected to a tapered rod 2. Both are subjected to axial loads as shown. If P- 7 KN, Determine the axial deformation of uniforn bar 1 (in mmi. Indicate negative sign if compression. 5P O 3P E-200 GPa gomm o mm Z so mm 30 mm 30 mn 30 mm 80 mm
- Determine the principal stresses. Show all results on complete sketches of differential elements. (input the Maximum Principal Stress in the answer box) ox- 65 ksi, ay - 89 ksi, Dxy - 58 ksi10/10 find the tensile stress in upper plate in section 3-3 80 kN 80 kN 8-bolt DIA. 10 MM 80 kN 80 kN 8-bolt DIA. 10 MM 10 MPа О 12.5 MPa 15 MPa 8.5 MPa O no one O ---.. O- O O 300mm 8 mmThe light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the load P 20 KN is applied. Sheel E200 GPa L-1 m 2.0 m 0.6m 1.5m P-20 KN Aluminum E-70 GPa A=900mm L-1.5 m What is the axial load at steel rod in KN?
- A steel column is pin connected at the top and bottom which is laterally braced and subjected to transverse loading. It carries an axial load of 800 kN and a 70 kN-m moment. Use ASD. The steel section has the following properties: A = 13000 mm² r = 94 mm Ix = 300 x 106 mm4 Sx = 1200 x 103 mm³ L = 3.6 m Yield stress Fy = 248 MPa Axial compressive stress that would be permitted if axial force alone existed, Fa = 115 MPa Compressive bending stress that would be permitted if bending moment alone existed, Fb = 148 MPa Members subjected to both axial compression and bending stresses shall be proportioned to satisfy the following requirements: Mry + 9 Mex Mey Determine the axial compressive stress if axial load only existed. Pr 8 Mrx + Pe 75.82 MPa 61.54 MPa 33.96 MPa 16.25 MPa Determine the bending stress if bending moment alone existed. 76.25 MPa O58.33 MPa 13.33 MPa ≤ 1.0 16.59 MPa Determine the value of both axial and bending moment interaction value, considering the amplification due to…A column is built up from four (4)- 125 x 125 x 18 angle shapes as shown. The plates are not continuous but are spaced at intervals along the column length and function to maintain the separation of the angles. They do not contribute to the cross-sectional properties. The effective length is 4 m. Compute the allowable design compressive strength based on flexural buckling. E= 250 MPa. Use ASD. k 375 mm 125mm, HPlate 125mm 4 - 4 125 × 125× l8 section 下好业Compute the nominal shear strength of an M107.5 of A572 Grad 65 steel.