A wooden beam is fabricated from one 2 x 8 and two 2 x 6 pieces of dimension lumber to form the I-beam cross section. The flanges of the beam are fastened to the web with nails that can safely transmit a force of 119 lb in direct shear. If the beam is simply supported and carries a 1020-lb load at the center of a 14-ft span, determine: (a) the horizontal force FH transferred from each flange to the web in a 14-in.-long segment of the beam. (b) the maximum spacing s (along the length of the beam) required for the nails. (c) the maximum horizontal shear stress Tmax in the I-beam. 2 in 2 in

A wooden beam is fabricated from one 2 x 8 and two 2 x 6 pieces of dimension lumber to form the I-beam cross section. The flanges of the beam are fastened to the web with nails that can safely transmit a force of 119 lb in direct shear. If the beam is simply supported and carries a 1020-lb load at the center of a 14-ft span, determine: (a) the horizontal force FH transferred from each flange to the web in a 14-in.-long segment of the beam. (b) the maximum spacing s (along the length of the beam) required for the nails. (c) the maximum horizontal shear stress Tmax in the I-beam. 2 in 2 in

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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Question

A wooden beam is fabricated from one 2 x 8 and two 2 x 6 pieces of dimension lumber to form the I-beam cross section. The flanges of the beam are fastened to the web
with nails that can safely transmit a force of 119 lb in direct shear. If the beam is simply supported and carries a 1020-lb load at the center of a 14-ft span, determine:
(a) the horizontal force FH transferred from each flange to the web in a 14-in.-long segment of the beam.
(b) the maximum spacing s (along the length of the beam) required for the nails.
(c) the maximum horizontal shear stress Tmax in the I-beam.
2 in
Nails
Answers:
(a) FH =
6 in
(b) s =
(c) Tmax=
2 in.
8 in
2 in
lb.
in.
psi.

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