Homework Answers
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each screw can provide a resistance of 1020 N. In service, the box beam will be installed so that bending occurs about the z axis, and the maximum shear force in the beam will be 10.4 kN. Assumed. -49 mm, dy 150 mm, b. - 130 mm, and by 25 mm. Determine the maimum permissible spacing intervals for the screws. de by! bi Answer: -...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each screw can provide a resistance of 880 N. In service, the box beam will be installed so that bending occurs about the z axis, and the maximum shear force in the beam will be 6 kN. Assume d1=54 mm, d2=190 mm, b1=120 mm, and b2=25 mm. Determine the maximum permissible spacing interval s for the screws. di d2 x di bzdk bi b2 Answer:...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each screw can provide a resistance of 920 N. In service, the box beam will be installed so that bending occurs about the z axis, and the maximum shear force in the beam will be 6.4 kN. Assume d1=46 mm, dz=190 mm, b1=160 mm, and bz=23 mm. Determine the maximum permissible spacing interval s for the screws. da 2 b bi Answer: S = mm.
A wooden beam is fabricated from three boards, which are fastened together with screws, as shown....
A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 260 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz =ー3.54 kN-m, and the maximum shear force in the beam is vy =-3.67 kN. Assume s=260 mm, b1 = 33 mm, b2 = 200...
A wooden beam is fabricated from three boards, which are fastened together with screws, as shown....
A wooden beam is fabricated from three boards, which are
fastened together with screws, as shown. The screws are uniformly
spaced along the span of the beam at intervals of 100 mm. In
service, the beam will be positioned so that bending occurs about
the z axis. The maximum bending moment in the beam is
Mz = −4.84 kN-m, and the maximum shear force in the beam
is Vy = −2.96 kN. Assume s=100 mm,
b1= 32 mm, b2 =...
P9.049 A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 240 mm. In service,...
P9.049 A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 240 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz--4.99 kN-m, and the maximum shear force in the beam is Vy -3.25 kN. Assume s=240 mm, b,-37 mm, b2=240 mm, d1=190 mm, d2=...
Point loads are 1.2 kN and 1.5 kN respectively 5. Fabricated box beam The simply supported beam is loaded by two forces...
Point loads are 1.2 kN and 1.5 kN respectively
5. Fabricated box beam The simply supported beam is loaded by two forces as shown below. The beam is constructed from four 24 mm thick boards which are nailed together. Determine the maximum distance s between nails if each nail can carry a force of Fallowable = 275N. 1.5 KN 1.2 KN 24 mm 177 mm 24 mm 3.0 m 2.5 m 1.0 m 24 mm 24 mm 280 mm
5....
The box beam is constructed from two boards that are fastened together using nails spaced along...
The box beam is constructed from two boards that are fastened together using nails spaced along the beam every 2 in. If each nail can resist a shear force of 50 lb a) determine the shear force "V" that can be applied to the beam without causing failure of the nails. b) determine the maximum shear stress at NA due to shear force "V" 2 in. 12 in. 9.5in.
The beam is fabricated from four boards nailed together as shown. Determine the shear stress at...
The beam is fabricated from four boards nailed together as shown. Determine the shear stress at points A and B on the web of the beam located at section a-a. Also, determine the spacing of the nails along the sides and the top of the beam if the shear force of each nail along the sides is 197 lb and the top is 1.38 kip. 8000 lb 150 lb/ 3 in 10 12 la 115ft 11.50 /
A wooden beam is fabricated by bolting together three members. The cross-sectional dimensions are shown. The...
A wooden beam is fabricated by bolting together three members. The cross-sectional dimensions are shown. The 8-mm-diameter bolts are spaced at intervals of s = 290 mm along the x axis of the beam. If the internal shear force in the beam is V = 9.4 kN, determine the shear stress t in each bolt. Assume b1 = 49 mm, b2 = 49 mm, d1 = 104 mm, d2 = 270 mm. bib2 bi di d2 X Answer: t =...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each screw can provide a resistance of 1020 N. In service, the box beam will be installed so that bending occurs about the z axis, and the maximum shear force in the beam will be 10.4 kN. Assumed. -49 mm, dy 150 mm, b. - 130 mm, and by 25 mm. Determine the maimum permissible spacing intervals for the screws. de by! bi Answer: -...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each screw can provide a resistance of 880 N. In service, the box beam will be installed so that bending occurs about the z axis, and the maximum shear force in the beam will be 6 kN. Assume d1=54 mm, d2=190 mm, b1=120 mm, and b2=25 mm. Determine the maximum permissible spacing interval s for the screws. di d2 x di bzdk bi b2 Answer:...
A wooden box beam is fabricated from four boards, which are fastened together with screws. Each screw can provide a resistance of 920 N. In service, the box beam will be installed so that bending occurs about the z axis, and the maximum shear force in the beam will be 6.4 kN. Assume d1=46 mm, dz=190 mm, b1=160 mm, and bz=23 mm. Determine the maximum permissible spacing interval s for the screws. da 2 b bi Answer: S = mm.
A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 260 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz =ー3.54 kN-m, and the maximum shear force in the beam is vy =-3.67 kN. Assume s=260 mm, b1 = 33 mm, b2 = 200...
A wooden beam is fabricated from three boards, which are
fastened together with screws, as shown. The screws are uniformly
spaced along the span of the beam at intervals of 100 mm. In
service, the beam will be positioned so that bending occurs about
the z axis. The maximum bending moment in the beam is
Mz = −4.84 kN-m, and the maximum shear force in the beam
is Vy = −2.96 kN. Assume s=100 mm,
b1= 32 mm, b2 =...
P9.049 A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 240 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz--4.99 kN-m, and the maximum shear force in the beam is Vy -3.25 kN. Assume s=240 mm, b,-37 mm, b2=240 mm, d1=190 mm, d2=...
Point loads are 1.2 kN and 1.5 kN respectively
5. Fabricated box beam The simply supported beam is loaded by two forces as shown below. The beam is constructed from four 24 mm thick boards which are nailed together. Determine the maximum distance s between nails if each nail can carry a force of Fallowable = 275N. 1.5 KN 1.2 KN 24 mm 177 mm 24 mm 3.0 m 2.5 m 1.0 m 24 mm 24 mm 280 mm
5....
The box beam is constructed from two boards that are fastened together using nails spaced along the beam every 2 in. If each nail can resist a shear force of 50 lb a) determine the shear force "V" that can be applied to the beam without causing failure of the nails. b) determine the maximum shear stress at NA due to shear force "V" 2 in. 12 in. 9.5in.
The beam is fabricated from four boards nailed together as shown. Determine the shear stress at points A and B on the web of the beam located at section a-a. Also, determine the spacing of the nails along the sides and the top of the beam if the shear force of each nail along the sides is 197 lb and the top is 1.38 kip. 8000 lb 150 lb/ 3 in 10 12 la 115ft 11.50 /
A wooden beam is fabricated by bolting together three members. The cross-sectional dimensions are shown. The 8-mm-diameter bolts are spaced at intervals of s = 290 mm along the x axis of the beam. If the internal shear force in the beam is V = 9.4 kN, determine the shear stress t in each bolt. Assume b1 = 49 mm, b2 = 49 mm, d1 = 104 mm, d2 = 270 mm. bib2 bi di d2 X Answer: t =...
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