A wooden beam is fabricated from three pieces of lumber to form the l-beam cross section shown. The flanges of the beam are fastened to the web with nails that can safely transmit a force of 199 lb in direct shear. If the beam is simply supported and carries a vertical 1000-lb load at the center of a 12-ft span, determine the maximum spacing s (along the length of the beam) allowed for the nails. 4 in. 2 in. 2 in. 8 in. 2 in. Nails 5.69 in. O 3.66 in. O 6.67 in. O 5.14 in. O 4.88 in.

Q: When it comes to finding the moment arm, you must use the distance of the line from the pivot to the…

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Q: The positive rake angle in a single point cutting tool is used to cut non-ferrous metals and low…

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Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.