The sketch below shows the elevation of an eccentrically braced frame. You are required to check...
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The sketch below shows the elevation of an eccentrically braced frame. You are required to check the adequacy bear outside the link at the 2nd floor and the brace at the first story due to combined axial force and bending. The link shear and bending moment due to the code level forces are shown below. You are required to do the following: Develop the collector force diagram for the 2nd Level due to the code level forces. Assume that that upper level braces are contributing concentrated loads of 137.5 kips at the nodal points while the 2nd story force of 185 kips is accumulated over the full 90 feet of the diaphragm (25 points) 12-8" 12¹-6 Check the beam outside the link for combined axial and bending demands for appropriately scaled forces per AISC 341. Assume that the total bending moment of 2300 kip-in shown in the diagram will be split between the brace and the beam outside the link in proportion to their I/L ratios. Assume that for W18X65 OP, = 594.5 k and oM₁ = 5262 kip-in. (15 points) Check the brace for combined axial and bending demands for appropriately scaled forces per AISC 341. Assume that for W14X132 oP₁ = 1219 k and oM = 9032 kip-in. (15 points) (10 points) 30'-0" Roof 2nd Floor 30'-0" 24" W18X65 192k Denotes Gravity Framing * W14X132 2300 k-" 30'-0" 275 k 185 k The sketch below shows the elevation of an eccentrically braced frame. You are required to check the adequacy bear outside the link at the 2nd floor and the brace at the first story due to combined axial force and bending. The link shear and bending moment due to the code level forces are shown below. You are required to do the following: Develop the collector force diagram for the 2nd Level due to the code level forces. Assume that that upper level braces are contributing concentrated loads of 137.5 kips at the nodal points while the 2nd story force of 185 kips is accumulated over the full 90 feet of the diaphragm (25 points) 12-8" 12¹-6 Check the beam outside the link for combined axial and bending demands for appropriately scaled forces per AISC 341. Assume that the total bending moment of 2300 kip-in shown in the diagram will be split between the brace and the beam outside the link in proportion to their I/L ratios. Assume that for W18X65 OP, = 594.5 k and oM₁ = 5262 kip-in. (15 points) Check the brace for combined axial and bending demands for appropriately scaled forces per AISC 341. Assume that for W14X132 oP₁ = 1219 k and oM = 9032 kip-in. (15 points) (10 points) 30'-0" Roof 2nd Floor 30'-0" 24" W18X65 192k Denotes Gravity Framing * W14X132 2300 k-" 30'-0" 275 k 185 k
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Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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