A W10 × 68 section consisting of 50 ksi steel is used for a 16 ft long beam-column in a braced frame. The member must support service loads Pp PL 60 k and 80 k and to service moments MDx = 40 ft-k, MLx = 45 ft-k, Mpy = 10 ft-k, and MLy = 15 ft-k. The moments are applied at both ends of the column so as to put it in single curvature about both axes. The column has K, = K, = 1.0 and C, 1.0. Is the member satisfactory? (Ans. OK 0.987 LRFD; NG 1.052 ASD)
A W10 × 68 section consisting of 50 ksi steel is used for a 16 ft long beam-column in a braced frame. The member must support service loads Pp PL 60 k and 80 k and to service moments MDx = 40 ft-k, MLx = 45 ft-k, Mpy = 10 ft-k, and MLy = 15 ft-k. The moments are applied at both ends of the column so as to put it in single curvature about both axes. The column has K, = K, = 1.0 and C, 1.0. Is the member satisfactory? (Ans. OK 0.987 LRFD; NG 1.052 ASD)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Use LRFD only to select the most economical section of ASTM A992 steel.
A W10 x 68 section consisting of 50 ksi steel is used for a 16 ft long beam-column
in a braced frame. The member must support service loads Pp = 60 k and
P1 = 80 k and to service moments MDx = 40 ft-k, MLx = 45 ft-k, Mpy
and MLy = 15 ft-k. The moments are applied at both ends of the column so as to
put it in single curvature about both axes. The column has K, = K,
C, = 1.0. Is the member satisfactory? (Ans. OK 0.987 LRFD; NG 1.052 ASD)
10 ft-k,
1.0 and](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdb3a6498-a1de-462e-b109-db31937ba18b%2Fc934a9ab-bb6c-4a6d-ad19-0cbf451ef1ab%2Fe7ng1f_processed.png&w=3840&q=75)
Transcribed Image Text:Use LRFD only to select the most economical section of ASTM A992 steel.
A W10 x 68 section consisting of 50 ksi steel is used for a 16 ft long beam-column
in a braced frame. The member must support service loads Pp = 60 k and
P1 = 80 k and to service moments MDx = 40 ft-k, MLx = 45 ft-k, Mpy
and MLy = 15 ft-k. The moments are applied at both ends of the column so as to
put it in single curvature about both axes. The column has K, = K,
C, = 1.0. Is the member satisfactory? (Ans. OK 0.987 LRFD; NG 1.052 ASD)
10 ft-k,
1.0 and
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