77a7b7cAlaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economicalsection is structural tubing however the said section is not readily available at the time of the construction. If youare the engineer in charge of the construction what alternative section will be the best replacement? Why?The section is 8" x 8" x 7.94 mm thick:Use Fy=248 MPa: E=200,000 MPaAISCwall thicknessIx 106S x 103Jx 103mm4mm3mm4rx =ryAreaAg (mm2) mmDesignationWeight/m8x87.9447.366,03979.2537.84371.9960.35expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narative form to support your cho'ce)8x814.2980.6110,25876.259.52585.0299.068x872.79,29076.9654.53539.1390.328x89.53 56.097,16178.4844.12432.6270.76mm12.7Zx 103mm3437.53714.48650.57512.92

Sx of 8"x8"x7.94mm is 371.99x103 mm3

7 7a 7b 7c Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical section is structural tubing however the said section is not readily available at the time of the construction. If you are the engineer in charge of the construction what alternative section will be the best replacement? Why? The section is 8" x 8" x 7.94 mm thick: Use Fy=248 MPa: E=200,000 MPa AISC Ix 106 S x 103 J x 103 mm4 mm3 mm4 Area Designation mm Weight/m Ag (mm2) 8x8 47.36 6,039 79.25 37.84 371.99 60.35 7.94 expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narat've form to support your cho'ce) 8x8 14.29 80.61 10,258 76.2 59.52 585.02 99.06 8x8 12.7 72.7 9,290 76.96 54.53 539.13 90.32 8x8 9.53 56.09 7,161 78.48 44.12 432.62 70.76 wall thickness rx=ry mm Zx 103 mm3 437.53 714.48 650.57 512.92

7 7a 7b 7c Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical section is structural tubing however the said section is not readily available at the time of the construction. If you are the engineer in charge of the construction what alternative section will be the best replacement? Why? The section is 8" x 8" x 7.94 mm thick: Use Fy=248 MPa: E=200,000 MPa AISC Ix 106 S x 103 J x 103 mm4 mm3 mm4 Area Designation mm Weight/m Ag (mm2) 8x8 47.36 6,039 79.25 37.84 371.99 60.35 7.94 expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narat've form to support your cho'ce) 8x8 14.29 80.61 10,258 76.2 59.52 585.02 99.06 8x8 12.7 72.7 9,290 76.96 54.53 539.13 90.32 8x8 9.53 56.09 7,161 78.48 44.12 432.62 70.76 wall thickness rx=ry mm Zx 103 mm3 437.53 714.48 650.57 512.92

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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5 5a 5b 5c Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical section is W 8 x 13 however the said section is not readily available at the time of the construction. If you are the engineer in charge of the construction what alternative section will be the best replacement? Why? Use: Fy=248 MPa: E=200,000 MPa Designation Ag (mm2) Weight kg/m 1910 19 30 width 24 flange. thickness d (depth) mm 200.41 bf 100.06 W8 x 10 4.32 15 expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narat've form to support your cho'ce) W8 x 13 2477 202.05 101.60 6.48 W6 x 20 3787 157.48 9.27 152.91 102.36 W6 x 16 3058 159.51 10.29 tf Web 5.21 thickness tw Elastic Properties mm 4 Ix x 106 mm 3 Sx x 103 5.84 6.60 6.60 13 16 17 13 126 162 220 167 mm rx 81.79 81.53 67.56 66.04 mm 4 lyx 106 1 1 6 2 mm 3 Sy x 106 17 22 72 36 mm ry 21.36 21.41 38.10244 24.54 Plastic properties mm 3 Zx x 103 145 187 244 192 mm 3 Zyx 103 27 35 110 56…
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