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The Design of Simple Roof-trusses in Wood and Steel: With an Introduction to ...

 By Malverd Abijah Howe
Read this book
By Malverd Abijah Howe
Published 1912
J. Wiley & sons
Roof trusses
179 pages
Original from the University of California
Digitized Oct 25, 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
Vertical Loads on a Horizontal Beam Reactions and Moments of the Outside Forces
14
Whole
15
closing line, pole, horizontal
Inclined Loads on a Simple RooftrussStructure considered as a Whole
16
Internal Equilibrium and Stresses
18
inside stress, point Ul, stress diagram
AST PAGE 19 Inside Forces Treated as Outside Forces
20
CHAPTER III
22
Metal
27
safe unit stress, Pin and Square, quiescent loads
End Bearing of Wood
29
SQUARE INCH, Pin and Square, safe load
23a Bearing of Wood for Surfaces Inclined to the Fibers
30
White Oak, Pine, inches
End Bearing of Wood against Round Metal Pins
31
normal intensity, Pine, IIOO
23c Splitting Effect of Round Pins
32
Bearing of Steel
33
soft-medium steel, R1vet, SAFE BEARING VALUES
Bearing across the Fibers of Wood
34
Steel
35
White Pine, LONGITUDINAL SHEARING VALUES, SAFE LONGITUDINAL SHEARING
Transverse Strength of Wood
36
Red Fir, purlin, Yellow Pine
Steel Beams
39
moment of inertia, principal axes, outermost fiber
Special Case of the Bending Strength of Metal Pins
43
Shearing Across the Grain of Wood
45
CHAPTER IV
46
Wind Loads
47
Transmission of Loads to Rooftrusses
48
Steel Shapes
49
Rivets
50
CONTENTS Vii
23
factor of safety, Norway Pine, Red Fir
CHAPTER V
51
Allowable Unit Stresses
52
Purlins
53
Purlins, per linear foot, weight
Loads at Truss Apexes
54
Stresses in Truss Members
55
apex load, Vertical Loads, stress due
Sizes of Compression Members of Wood
57
splice, piece LoUi, 41.3 square inches
Sizes of Tension Members of Wood
59
number of square, square inches required, unsupported length
Sizes of Steel Tension Members
60
bottom chord, square inches, Tension Members
Design of Joint L0 with 1J Bolts
61
corbel, bottom chord, white oak
56z Bolts and Metal Plates
66
component of 34500, top chord, tooth
Nearly all Wood
68
and Pin
70
stirrup, saddle, stress
Plate Stirrup and Pin
72
Stirrup, entire load, stress
Steel Angle Block
73
Special
74
diameter, plate, square
Plank Members
76
Design of Wall Bearing
77
chord, plates, vertical
Design of Joint C
78
corbel or bolster, bearing area, center lines
Ut
81
DESIGN
Z
82
angle-block, brace, show the application
L3 and Hook Splice
85
chord, washer, brace
L3 Fishplate Splice of Wood
86
splice, shearing area, total end bearing
is Fishplate of Metal
88
metal fish-plate, Splice, nuts
Metal Splices for Tension Members of Wood
90
Design of Joint Us
91
The Complete Design
92
metal, Plate, length
CHAPTER IV
96
ABT JAGB 82 Design of Joint L
100
gusset, number of rivets, 2.12 square inches
L 101 85 U
102
Expansion
103
End Cuts of AnglesShape of Gusset Plates
107
Gusset-plates, riveting, shipped
Weights of Various Substances
109
Cubic Foot, square of roof, Terra-cotta
RivetsStandard Spacing and Sizes
115
FLANGES, RIVET, Depth of Weight
RivetsAreas to be Deducted for
117
RIVETS, Size of Hole, I.OO
Roundheaded Rivets and BoltsWeights
118
Diameter of Rivet, ROUND-HEADED, Inches
Bolt Heads and NutsWeights and Dimensions
119
hexagon, diameter of bolt, Short Diameter Long
Upset Screw Ends for Round BarsDimensions
120
Sq.In, DIMENSIONS
Right and Left NutsDimensions and Weights
121
1j af, 1f If 4i, 4i H
Properties of Standard I Beams
122
PROPERTIES OF STANDARD, Inches Inches, BEAMS
Properties of Standard Channels
125
Properties of Standard Angles with Equal Legs
126
iit i iit, t j i t j i t j i, Axis
Properties of Standard Angles with Unequal Legs
128
Radius of Gyration, Moment of Inertia, Centre of Gravity
Least Radii of Gyration for Two Angles Back to Back
134
LEAST RADII, Gyration, Inch
Properties of T Bars
135
Flange, Modulus Axis, Section Number
Standard Sizes of Yellow Pine Lumber and Corresponding Areas and Section Moduli
137
yellow pine, Bending Moments, Short-leaf
Average Safe Allowable Working Unit Stresses for Wood
139
ooooooo
Castiron WashersWeights of
140
Safe Shearing and Tensile Strength of Bolts
141
Single Tension, per Sq, Shear
APPENDIX ABT 1 Length of Keys Spacing of Notches and Spacing of Bolts
143
bearing and longitudinal, longitudinal shear, end bearing
Plate Washers and Metal Hooks for Trusses of Wood
145
Oregon, Northern or Short-leaf, Spruce and Eastern
A Graphical Solution of the Kneebrace Problem
148
knee-braces, given forces, vertical components
Trusses which may have Inclined Reactions
151
OOOOOIlS, scissors-truss, horizontal thrust
Tests of Joints in Wooden Trusses
155

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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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