Construction Materials, Methods and Techniques (MindTap Course List)
4th Edition
ISBN: 9781305086272
Author: William P. Spence, Eva Kultermann
Publisher: Cengage Learning
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Chapter 9, Problem 6RQ
What is the main value in pre-stressing pre-cast concrete columns?
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1. Create Diagrams: Draw the shear and moment
diagrams for the given beam.
8k
15k-ft
B
12 k
-6 ft-
-8 ft--8 ft-
-8 ft-
4k
4 ft 2 ft
10:46
Mechanics of Deform...
← CE104.2T.24.25. FA 1
5 of 6
2.5/10
Rigid bar ABCD is loaded and supported as shown.
Steel [E=27800 ksi] bars (1) and (2) are unstressed
before the load P is applied. Bar (1) has a cross-
sectional area of 0.83 in.² and bar (2) has a cross-
sectional area of 0.45 in.2. After load P is applied, the
strain in bar (1) is found to be 670 με. Assume L₁=58
in., L2-94 in., a=26 in., b=22 in., and c=36 in.
Determine:
(a) the stresses in bars (1) and (2).
(b) the vertical deflection VD of point D on the rigid
bar.
(c) the load P.
A
L₁
B
L2
a
b
223
D
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Construction Materials, Methods and Techniques (MindTap Course List)
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- exact answerarrow_forwardQ2: For the overhanging beam BD shown, draw the "Influence Lines" for RB, RD S.F. at C (VC) and B.M. at C (Mc) using the static equilibrium method. A B 4 m 5 m 7 marrow_forwardQ1: Draw N.F.D, S.F.D and B.M.D for the frame shown below. Knowing that t support at A is hinge, and at D is roller. B 2 m 5 kN/m C 30 kN 2 D 5 marrow_forward
- please the correct answerarrow_forwardQ1: Draw N.F.D, S.F.D and B.M.D for the frame shown below. Knowing that the support at A is hinge, and at D is roller. br Section C-D) 5 kN/m MC = 30x2) + (Dx *4) D لاک 15 B 2 m 2 m 30 kN DA DX 2 marrow_forwardQ2: For the overhanging beam AC shown, draw the "Influence Lines" for RA, RC, S.F. at B (VB) and B.M. at B (MB) using the static equilibrium method. 2 m B AC D 2 m 3 marrow_forward
- answerrarrow_forwardanwer pleasearrow_forwardCurrent Attempt in Progress The bell-crank mechanism is in equilibrium for an applied load of F₁ = 16 kN applied at A. Assume a = 330mm, b = 190mm, c = 75mm, and 0 = 35°. Pin B is in a double-shear connection and has a diameter of 32 mm. The bell crank has a thickness of 24 mm. Determine (a) the shear stress in pin B. (b) the bearing stress in the bell crank at B. Bell crank Support bracket- Answers: Tpin Bi B a b MPa Ob = i MPaarrow_forward
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What is Concrete?; Author: Practical Engineering;https://www.youtube.com/watch?v=UOHURuAf5iY;License: Standard Youtube License