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Additional info for Design Examples Based on the AISC Manual

Example text

33 in. 62 in. k. k. For buckling about the y-y axis, the tabulated values are based on a separation of a in. , (KL)y is multiplied by the ratio of ry for a a-in. separation to ry for a w-in. separation. 19 in. 33 in. 1 and is slightly unconservative. k. k. Manual Table 4-9 These strengths are approximate due to the linear interpolation from the Table and the approximate value of the equivalent (KL)y noted above. These can be compared to the more accurate values calculated in detail below. Determine the number of intermediate connectors required.

0. k. k. 5 Double Angle Compression Member without Slender Elements Given: Verify the strength of a 2L4×32×a LLBB (w-in. separation) strut with a length of 8 ft and pinned ends carrying an axial dead load of 20 kips and live load of 60 kips. Also, calculate the required number of fully tightened or welded intermediate connectors required. 719 in. 55 in. 69 in. 25 in. k. k. For buckling about the y-y axis, the values are tabulated for a separation of a in. , (KL)y is multiplied by the ratio of the ry for a a-in.

Manual Table 4-9 These strengths are approximate due to the linear interpolation from the Table and the approximate value of the equivalent (KL)y noted above. These can be compared to the more accurate values calculated in detail below. Determine the number of intermediate connectors required. From the tabulated values, it is determined that at least two welded or pretensioned bolted intermediate connectors are required. 00 ft) 12 in. 0 in. The effective slenderness ratio of the individual components of the built-up member based upon the distance between intermediate connectors, a, must not exceed three quarters of the controlling slenderness ratio of the overall built-up member.

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Design Examples Based on the AISC Manual by Structural Steel Educational Council (eds.)


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