Chapter 6, Problem 6.22PFS

Simply Supported Beam ABCDE below carries multiple loads as shown. A built-upsection made from a T-Section and a Channel (C-Section) fastened together by 16mm∅ bolts,equally spaced from the center of the section, with shearing capacity τ=100 MPa, for bearing σb= 220 MPa for rivets in single shear and σb = 280 MPa for rivets in double shear. E=200GPa forall materials. Determine the location of Neutral Axis, in mm, from the top of the section.

BAL=8 mt = 13 mm-150 mm113 mmFor the steel column with both ends fixed against rotation having a tubularcross-section, determine the allowable load Pall against buckling. E=200 GPa andOy=250 MPa.

For the frame loaded as shown, draw the complete and correct FBDs of thefollowing: whole frame, member BE, member HK, pulley D, pulley J, member CDEHJwithout the pulleys, and pin B. If block G weighs 133 N, determine all the forcesacting on member CDEHJ (i.e. Cx, Cy, Dx, Dy, FBE, FHK, Jx and Jy). Also, calculate thehorizontal (ABCBx) and vertical (ABCBy) components of the reactions betweenmember ABC and pin B.

Steel Design Two channels having the given properties shown is placed at a distance of 300 mm to back and is properly connected by a pair of lacings as shown.  Properties of one channel A = 5595 mm2 d = 305 mm x = 17mm Ix = 67.3 x 106 mm4 Iy = 2.12 x 106 mm4 rx = 19.3 mm  Assume K = 1.0 Determine the safe axial load in kN, that the column section could carry. Unsupported height of column is 6m.

The W12 * 50 wide-flange A-36 steel column is fixed at its bottom and free at its top. Determine the greatest eccentric load P that can be applied using Eq. 13–30 and the AISC equations of Sec. 13.6.

A T-beam for a floor system has a slab thickness of 75mm and a web thickness of 375mm. It has an effective depth of 600mm. The beam carries a dead load moment of 270Kn.M and a liveload moment of 460Kn.m. It has a span of 5.4m and a spacing center to center of 1.8m. f’c=20.7MPa, fy=344.7MPa. a) Determine the effective width of the flange b) Determine the depth of compression block c) Determine the steel area required

A built-up beam made from fastening two channels to a wide flange section carriesloads` as shown. The fasteners are 12mm∅ bolts with allowable shear stress τ= 110 MPa. Forbearing, σb= 220MPa for single shear, and σb= 275 MPa for double shear. E=200 GPA. Fy=420MPa. Do not round off between solutions . Explain the Steps.  a.) Determine the Moment of Inertia of the Sectionb.) Determine the Moment Capacity of the section if fb≤280MPa.c.) Determine the flexural stress at fiber 30 mm above Neutral Axis at distance 5 metersfrom the support at A.d.) Determine the maximum bending stress on the section.e.) Determine the maximum shearing stress at Neutral Axis.f.) Determine the horizontal shearing stress at 20 mm above the Neutral Axis.g.) Determine the horizontal shearing stress at 95 mm above the Neutral Axis.h.) Determine the spacing of the bolts.

Simply Supported Beam ABCDE below carries multiple loads as shown. A built-upsection made from a T-Section and a Channel (C-Section) fastened together by 16mm∅ bolts,equally spaced from the center of the section, with shearing capacity τ=100 MPa, for bearing σb= 220 MPa for rivets in single shear and σb = 280 MPa for rivets in double shear. E=200GPa forall materials. Determine the location of the centroid, in mm, from the left of the section.

Find; -Compute the maximum service load moment about the y-axis in KN.m. 0 - If a W12 x 14 is used for the purlins, compute the allowable moment strength for the x-axis in    KN.m. 0 -Is a W12 x 14 adequate for the purlins considering moment, shear and deflection? 0 -If a W10 x 12 is used for the purlins, compute the allowable moment strength for the y-axis in KN.m. 0 -Select the lightest W-shape for the purlins considering moment, shear and deflection.0