Part A The gas pipe line is supported every 20 ft by concrete piers and also lays on the ground. The gas within the pipe is at a pressure of 400 lb/in?. The pipe has an inner diameter of 15 in. and thickness of 0.25 in . The material is A-36 steel. The pipe is shown in the figure below (Figure 1). If there are rigid retainers at the piers that hold the pipe fixed, determine the hoop stress in the pipe if the temperature rises 55 F from the temperature at which it was installed. Express your answer to three significant figures and include appropriate units. ? 01 = Value Units Submit Request Answer Part B Determine the longitudinal stress in the pipe. Express your answer to three significant figures and include appropriate units. HA Value Units

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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.