Architectural Drafting and Design (MindTap Course List)
7th Edition
ISBN: 9781285165738
Author: Alan Jefferis, David A. Madsen, David P. Madsen
Publisher: Cengage Learning
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Chapter 30, Problem 30.8Q
To determine
The smallest floor joist size required to support the living room of span
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How many IF of bar joist are there in an area measuring 100' × 100' where the joists
are 30 inches on center?
Please make the solution & answer clean and clear, I will vote it up need your help please thanks.
a)
5309 lbs
b)
2428 lbs
c)
867 lbs
d)
1619 lbs
Chapter 30 Solutions
Architectural Drafting and Design (MindTap Course List)
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- Please make the solution and answer clear, i will vote it up need your help ASAP. THANKSarrow_forwardThree boards, each 2 in. thick, are nailed together to form a beam that is subjected to a vertical shear. Knowing that the allowable shear-ing force in each nail is 150 lb, determine the allowable shear if the spacing s between the nails is 3 in.arrow_forwardA living room measuring 7m x 4m uses 2"x2" ceiling joists The total board foot of ceiling joists that is required to cover the entire room is 176.66 bd. ft. If there are already 19 pcs. of 2"x2"x14' ceilinig joists available at the site, how many pieces more of 2"x2"x12' are needed to cover the entire ceiling joists requirement of the room?arrow_forward
- Three boards, each 2 in. thick, are nailed together to form a beam that is subjected to a shear. If the allowable shearing force in each nail is 150 lbs., determine the allowable shear force if the spacing s between the nails is 3 in. 2 in. 4 in. 2 in. 2 in. 6 in.arrow_forwardUsing the sketches and notes explain the two ways steel joist are usually braced against instability?arrow_forwardHow and where the cantilevers are used in buildings?arrow_forward
- Problem 1 Three boards, each 2 in. thick, are nailed together to form a beam that is subjected to a vertical internal shear force V. Knowing that the allowable shearing force in each nail is 150 lb, and the nail spacing (s) is 3 in., determine the largest V that can be applied. 2 in. 4 in. 2 in. 2 in. 6 in.arrow_forwardWhat are the classification of reinforcement bar support? Give and describe 10 examples for each classification.arrow_forward4. What is the total force on a damn that is an isosceles triangle with sides of 35m? The dam is holding back water. The pointy end of the triangle is at the top.arrow_forward
- a 4m x 5.8m living room uses 2" x 2" ceiling joists that are spaced at 40 am x 40 cm O.C. Estimate the quantity and board foot of the materials required.arrow_forwardDetermine the purchase quantity and number of board feet of 2 × 12 joist needed for the floor in the figure below. The joists are spaced 16 inches on center. Be sure to include the headers. DOUBLE JOIST UNDER WALL 24' 8' 10' 2x12 HEADER 22¹-8" -4x4 POST DOUBLE JOIST 10'-7" 2x12 HEADER 2x12 @ 16" O.C. 36' 2@2x12 GIRDER DOUBLE JOIST UNDER WALL 10'-9" 13'-4" DOUBLE JOIST- UNDER WALL 2@2x12 GIRDER 4x4 POST 2x12 HEADER 10¹-8" 2x2 HEADER 10' 12° 34' 12'arrow_forwardWhat is the maximum allowable deflection for ceiling joists spanning 3.0 m and supporting a gypsum board ceiling? there are 4 choices below: 12.5 mm. 8.3 mm. 3.0 mm. 16.7 mm.arrow_forward
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