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The Design of Simple Roof-trusses in Wood and Steel

 By Malverd Abijah Howe
Read this book
By Malverd Abijah Howe
Published 1902
J. Wiley & sons; [etc
., etc.]
Roof trusses
129 pages
Original from the University of Michigan
Digitized Dec 4, 2007
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Contents

Application of the Equilibrium Polygon in Finding Moments of Forces
9
equilibrium polygon, load line, multiplied by H
Graphical Multiplication
12
CHAPTER II
14
Vertical Loads on a Simple RooftrussStructure considered as a Whole
15
closing line, pole, horizontal
Inclined Loads on a Simple RooftrussStructure considered as a Whole
16
Internal Equilibrium and Stresses
18
inside stress, piece Aa, stress diagram
AHT PAOK 19 Inside Forces Treated as Outside Forces
20
CHAPTER III
22
Metal
25
ULTIMATE STRENGTH, Pin and Square, STRENGTH IN POUNDS
End Bearing of Wood
28
Pine, safe load, square inch
Bearing of Steel
29
SAFE BEARING VALUES, rivets, POUNDS PER SQUARE
Bearing across the Fibers of Wood
30
TABLE OF SAFE, SAFE BEARING, Pine
Steel
31
Transverse Strength of Wood
32
Red Fir, Factor of safety, Red Pine
Steel Beams
34
outermost fiber, inch-pounds, pocket-books
Special Case of the Bending Strength of Metal Pins
35
Shearing Across the Grain of Wood
37
CHAPTER IV
38
Wind Loads
39
Transmission of Loads to Rooftrusses
40
Steel Shapes
41
Rivets
42
CHAPTER V
43
Allowable Unit Stresses
44
Purlins
45
along the rafter, inch-pounds, per linear foot
ART PAOK 52 Stresses in Truss Members
47
apex, vertical load, stress due
Sizes of Compression Members of Wood
48
quired, 56 square inches, However
Sizes of Tension Members of Wood
51
square inches required, number of square, Tension Members
Sizes of Steel Tension Members
52
56a Bolts and Metal Plates
57
chord, tooth, Metal
Nearly all Wood
60
and Pin
63
Castiron Angle Block
64
Plank Members
66
Large bolts, type of joint, per square inch
Design of Wull Bearing
67
stress, bolster, Wall
Remarks concerning the Design of Joint La
68
U
70
angle-block, cast-iron, notch ij
L 72 70 L3 and Hook Splice
74
brace, stress, method
L3 Fishplate Splice of Wood
75
splice, shearing area, total end bearing
L Fishplate Splice of Metal
77
Fish-plate Splice, vertical rod, bear against
Metal Splices for Tension Members of Wood
79
Design of Joint U
80
The Complete Design
81
ROOF-TRUSS, metal, computed
CHAPTER IV
84
Tension Members
87
compression members, rivets, rivet-holes
Design of Joint I
88
2.12 square inches, inches net section, 1.68 square inches
U
89
gusset, number of rivets, L0L2 requires
Ii 89 85 U
90
Expansion
91
TABLES PAOE
34
compression members, corbel, radius of gyration
Weights of Various Substances
93
Sandstone, Zinc, Weight in Lbs
Roof CoveringsWeights of
95
square of roof, Terra-cotta, CORRUGATED IRON
RivetsStandard Spacing and Sizes
99
Size of Rive, Rive Inches, FLANGES
RivetsAreas to be Deducted for
101
RIVETS, Inches, Areas
Roundheaded Rivets and Bolts Weights
102
Rivet Heads, Diameter of Rivet, ROUND-HEADED
Bolt Heads and NutsWeights and Dimensions
103
hexagon, diameter of bolt, Short Diameter Long
Upset Screw Ends for Round BarsDimensions
104
PrCt, DIMENSIONS, TABLE
Right and Left NutsDimensions and Weights
105
2ft 2ft, Diam, eter
Properties of Standard I Beams
106
STANDARD I BEAMS, PROPERTIES OF STANDARD, IO IO
Properties of Standard Channels
108
PROPERTIES OF STANDARD, STANDARD CHANNELS, IO IO
Properties of Standard Angles with Equal Legs
110
n Modulus, Sq.ln, STANDARD ANGLES
Properties of Standard Angles with Unequal Legs
112
Radius of Gyration, Moment of Inertia, Centre of Gravity
Least Radii of Gyration for Two Angles Back to Back
118
LEAST RADII, RADII OF GYRATION, Inch
Properties of T Bars
119
Radius of Gyration, Moment of Inertia, Flange
Commercial Sizes and Relative Costs of Timbers
121
YELLOW PINE, Size in Inches, Joists
Average Safe Allowable Working Unit Stresses for Wood
123
ooo ooo oooooooo, oooo, oooooooo ooo ooo
Castiron WashersWeights of
124
morocco, Strength of Materials, World's Columbian Exposition

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References from web pages

Internet Archive: Details: THE DESIGN OF SIMPLE ROOF-TRUSSES IN ...
THE DESIGN OF SIMPLE ROOF-TRUSSES IN WOOD AND STEEL (1915). Author: MALVERD A. HOWE Book Contributor: CARNEIGE MELON UNIVERSITY Language: English ...
www.archive.org/ details/ designofsimplero004229mbp

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