6.18 Given: The floor beam in Fig. 6.C with the following information: Pp = 400 lb PL = 1600 lb D + L (ASD) 1.2D + 1.6L (LRFD) L, = 8 ft L2 = 4 ft 4 X 12 Load: Load combination: Span: Member size: Stress grade and species: Unbraced length: Moisture content: Sel. Str. SP , = 0 MC < 19 percent Allow. Afree end < L2/180 Allow. Apetween Deflection limit:

6.18 Given: The floor beam in Fig. 6.C with the following information: Pp = 400 lb PL = 1600 lb D + L (ASD) 1.2D + 1.6L (LRFD) L, = 8 ft L2 = 4 ft 4 X 12 Load: Load combination: Span: Member size: Stress grade and species: Unbraced length: Moisture content: Sel. Str. SP , = 0 MC < 19 percent Allow. Afree end < L2/180 Allow. Apetween Deflection limit:

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Processing of Polymer Matrix Composites

The polymer matrix composite is described as a composite material that contains some polymer in the form of either fibers or powder. Polymer matrix composites are also known in short as PMC's.

Question

"Donald breyer; Design of wood structures 6th edition" ,problem number 6.18

6.18 Given: The floor beam in Fig. 6.C with the following information:
Р, 3D 400 lb
PL = 1600 lb
D + L (ASD)
1.2D + 1.6L (LRFD)
L, = 8 ft
L2 = 4 ft
4 X 12
Load:
Load combination:
Span:
Member size:
Stress grade and species:
Unbraced length:
Moisture content:
Sel. Str.
SP
l, = 0
MC < 19 percent
Allow. Afree end < L2/180
Allow. Apetween supports = L1/360
Deflection limit:
a. Size category (Dimension lumber, B&S, or P&T)
b. Reference design values: F,, F, and E
c. Adjusted ASD values: F', F',, and E'
d. Actual stresses (ASD) and deflection: fo, fu, and A
e. Compare the actual stresses and adjusted design values, and determine
if the member is adequate (ASD).
Find:
Lz
Figure 6.C

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