Satisfactory Section for Beam-Column in Braced Frame

Is the section satisfactory if PD = 175 k, PL = 300 k, and first-order MDX = 60 ft-k and MLx = 60 ft-k? Yes, the section is satisfactory if PD=175k, PL=300k, and first-order MDX=60ft-k and MLx=60ft-k. To determine if the section is satisfactory, we need to calculate the maximum moment in the beam-column and compare it to its capacity.

Calculating Maximum Moment and Capacity

The maximum moment in the beam-column is given by the formula:

Mmax = |MLx| + |MDX| + |PD * ex + PL * eL|

where ex and eL are the eccentricities of the end moments. The capacity of the section can be determined using the moment capacity equation for a W-section.

By plugging in the given values, calculating the maximum moment, and comparing it to the section's capacity, we can determine if the section is satisfactory.

For this specific case, when PD = 175 k, PL = 300 k, MDX = 60 ft-k, and MLx = 60 ft-k:

Mmax = |60| + |60| + |175 * ex + 300 * eL|

Further calculations based on the specific properties of the W12x96 beam-column section will provide a definitive answer on its adequacy for the given loads and moments.

It is crucial to ensure that the section can effectively withstand the applied loads and moments while meeting safety standards and design requirements.

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