ASCE Manual 111 06:2006 Edition

$53.08

Manual of Practice No. 111: Reliability-Based Design of Utility Pole Structures

Published By	Publication Date	Number of Pages
ASCE	2006	119

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Category: ASCE

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Description

Reliability-Based Design of Utility Pole Structures provides state-of-the-art technical information on the design of utility pole structures. Among other useful features, this manual demonstrates how poles differing in material can be designed to equivalent reliability levels, provides means for quantifying adjusting reliability, offers design incentives for more reliable poles, and facilitates innovation and introduction of new material. With its technically innovative subject matter and detailed design examples, this manual will benefit pole manufacturers as well as electrical, structural, and transmission and distribution engineers.

PDF Catalog

PDF Pages	PDF Title
6	CONTENTS
10	ACKNOWLEDGMENTS
12	FIGURES TABLES
14	1 INTRODUCTION 1.1 Current Practice
16	1.2 Reliability-Based Design
18	1.3 Objective 1.4 Scope
19	1.5 Benefits
20	1.6 Relation to National Electrical Safety Code and Other ASCE Guides
22	2 RELIABILITY-BASED DESIGN METHODOLOGY 2.1 Introduction 2.2 Structural Systems
23	2.3 Design of Wire System 2.4 Types of Load-Producing Events and Return Period 2.4.1 Weather-Related Events
24	2.4.2 Accidental Events 2.4.3 Construction and Maintenance Events
25	2.5 Limit State Design 2.5.1 Loads and Load Effects 2.5.2 Component Strength
27	2.5.3 Load and Resistance Factor Design Format
29	2.6 Reliability-Based Design
30	2.6.1 Target Reliability Levels and Corresponding Load Factors
32	2.6.2 Selection of Strength Factor
34	2.7 Moment Magnification Consideration for Flexible Poles
35	2.8 Coordination of Failure Sequences 2.8.1 Structures versus Foundations
36	2.8.2 Wire System versus Support System 2.8.3 Tangent versus Dead-End Structures
38	3 LOADS 3.1 Introduction
39	3.1.1 Weather-Related Load Events
40	3.1.2 Construction and Maintenance Events 3.1.3 Failure Containment Loads
41	3.1.4 Longitudinal Loads 3.2 References to Appropriate Load Documents 3.2.1 Weather-Related Loads
42	3.2.2 Construction and Maintenance Loads 3.2.3 Failure Containment Loads
43	3.3 Regional and Local Weather-Related Loads 3.3.1 Extreme Wind Loads
44	3.3.2 Combined Ice and Wind Loads 3.4 Effects of Load Factors or Load Return Periods
48	4 STRENGTH OF SINGLE-POLE UTILITY STRUCTURES 4.1 Introduction
49	4.2 Objective
50	4.3 Scope 4.4 Characterizing Pole Strength
51	4.4.1 Loads 4.4.2 Nominal Resistance
63	4.5 Proof Loading
66	APPENDIX A: DESIGN EXAMPLES A.1 Introduction
67	A.2 Example Load Requirements
74	A.3 Example 1: Wood Transmission Pole
76	A.4 Example 2: Wood Distribution Pole
78	A.5 Example 3: Steel Transmission Pole
79	A.6 Example 4: Steel Distribution Pole
81	A.7 Example 5: Spun Concrete Transmission Pole
83	A.8 Example 6: Fiber-Reinforced Polymer Distribution Pole
85	A.9 Example Calculation of P-Δ Effect Using the Gere-Carter Method
88	APPENDIX B: EXAMPLES FOR CHAPTER 4: ASSESSING NOMINAL VALUE (R[sub(n)]) B.1 Method 1: Empirical Assessment of R[sub(n)] B.1.1 Example 1: Wood Poles
91	B.1.2 Example 2: Evaluation of Yield Strength of Steel Using Material Test Data
92	B.2 Method 2: Monte Carlo Simulations with Mechanics-Based Models B.2.1 Example 1: Custom-Designed Steel Poles (Range of Pole Sizes)
97	B.2.2 Example 2: Commodity Steel Poles (Single-Size Round Pole)
102	APPENDIX C: REFERENCES
106	APPENDIX D: NOTATION AND SI CONVERSION FACTORS D.1 Notation
110	D.2 SI Conversion Factors
112	INDEX A B
113	C D
114	E F G
115	H I L
116	M N
117	O P R
118	S T
119	V W