7-12. The frame shown in the accompanying figure is unbraced against sidesway aboutthe x-x axis. The columns are W8 and the beams are W12 x 16. ASTM AS72 steelis used for the columns and beams. The beams and columns are oriented so thatbending is about ther-x axis Assume that K, = 1.0, and for column AB the serviceload is 175 k, in which 25 percent is dead load and 75 percent is live load. Select thelightest W8 shape for column AB.Momentconnection. Typ.13 ft20 ft20 ft20 ftFIGURE P7-12

Given, Unfactored Safe load = 175 k Dead load = 0.25×175=43.75 k Live load ==0.75×175=131.25 k

7-12. The frame shown in the accompanying figure is unbraced against sidesway about the x-x axis. The columns are W8 and the beams are W12 x 16. ASTM AS72 steel is used for the columns and beams. The beams and columns are oriented so that bending is about the x-x axis. Assume that K, = 1.0, and for column AB the service load is 175 k, in which 25 percent is dead load and 75 percent is live load. Select the lightest W8 shape for column AB. Moment connection. Typ 13 ft 20 ft 20 ft 20 ft FIGURE P7.12

7-12. The frame shown in the accompanying figure is unbraced against sidesway about the x-x axis. The columns are W8 and the beams are W12 x 16. ASTM AS72 steel is used for the columns and beams. The beams and columns are oriented so that bending is about the x-x axis. Assume that K, = 1.0, and for column AB the service load is 175 k, in which 25 percent is dead load and 75 percent is live load. Select the lightest W8 shape for column AB. Moment connection. Typ 13 ft 20 ft 20 ft 20 ft FIGURE P7.12

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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