EBK FUNDAMENTALS OF CONSTRUCTION ESTIMA
4th Edition
ISBN: 8220106748305
Author: Pratt
Publisher: CENGAGE L
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Chapter 6, Problem 1RQ
To determine
The two variables which have a significant effect on usage of masonry material and consumption of mortar in addition to block or brick size.
Expert Solution & Answer
Explanation of Solution
The masonry work involves the construction using clay bricks, concrete blocks and bricks, clay tiles and artificial and natural stones.
The usage of masonry material and consumption of mortar is affected by block or brick size. The other variables are treatment of mortar joints and the kind of masonry bond.
Conclusion:
The two variables which have a significant effect on usage of masonry material and consumption of mortar in addition to block or brick size are treatment of mortar joints and the kind of masonry bond.
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Consider the structure shown in (Figure 1). Suppose that
F = 2500 N.
Figure
0.2 m
1500 N
0.2 m
30%
0.2 m
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-0.2 m-0.2 m-
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Determine the resultant couple moment.
Express your answer to three significant figures and include the appropriate units. Enter positive value if the moment is
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ΜΑ
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A
W
20
Aa
Example
The 30-N force P is applied perpendicular to the
portion BC of the bent bar. Determine the moment
of P about point B and about point A.
Ans: Mb= 48 N.m
Ma= 81.941 N.m
P = 30 N
1.6 m
45°
B
1.6 m
Q2. Write the flexibility matrix corresponding to coordinates 1 and 2 for the structures shown.
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ans:
l
4 11
3 [16 51
6EI 126EI 5 2
(a)
A
-1-
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(b)
A
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Chapter 6 Solutions
EBK FUNDAMENTALS OF CONSTRUCTION ESTIMA
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