Wind Loads - Guide to the Wind Load Provisions of ASCE 7-10

"This helpful guide focuses on the wind load provisions of Minimum Design Loads for Buildings and Other Structures, Standard ASCE/SEI 7-10, that affect the planning, design, and construction of buildings for residential and commercial purposes. The 2010 revision of the Standard significantly reorganized the wind load provisions, expanding them from one to six chapters. Simplified methods of performing calculations for common situations were added to the Standard, and guidelines for components and cladding were gathered in a single chapter. This book provides users with tools and insight to apply the Standard in everyday practice. This revised and updated guide introduces readers to the relevant sections of the Standard and provides a comprehensive overview of the design procedures and the new wind speed maps. Ten chapters with 14 worked examples demonstrate the appropriate use of analytical and simplified procedures for calculating wind loads for a variety of common structure types. The guide also answers more than 30 frequently asked questions, grouped by topic. This book is an essential reference for practicing structural engineers, as it offers the most authoritative and in-depth interpretation of the wind loads section of Standard ASCE/SEI 7-10"--Publisher's description Cover 1 Contents 6 Preface 8 Unit Conversions 9 General Requirements 10 1. Introduction 10 1.1 Objective of the Guide 11 1.2 Significant Changes and Additions 11 1.3 Limitations of the Standard 13 1.4 Technical Literature 15 2. Wind Load Provisions 18 2.1 Format 18 2.2 Velocity Pressure 18 2.3 Analytical Procedure 19 2.4 Simplified Procedure 21 2.5 Wind Tunnel Procedure 24 2.6 Equations for Graphs 24 3. Wind Speeds and Related Risks 32 3.1 Wind Speed Maps 32 3.2 Load Factors 34 3.3 Wind Risks 34 Examples 36 4. 160-ft-Tall Office Building 36 4.1 Analytical Procedure 38 4.2 Building Located on an Escarpment 48 4.3 Simplified Method for Buildings Less Than 160 ft Tall 50 5. Commercial/Warehouse Metal Building 60 5.1 Analytical Procedure 62 5.2 Simplified Method for Low-Rise Building 71 6. Commercial Building with Concrete Masonry Unit Walls 80 6.1 Analytical Procedure 82 6.2 Simplified Method for Low-Rise Buildings 88 7. Commercial Building with Monoslope Roof and Overhang 92 7.1 Analytical Procedure 92 8. L-Shaped House with Gable/Hip Roof 106 8.1 Analytical Procedure 106 9. U-Shaped Apartment Building 116 9.1 Analytical Procedure 116 10. Open Building with Gable Roof 130 11. Domed Roof Building 138 11.1 Analytical Procedure 138 12. Unusually Shaped Building 146 12.1 Analytical Procedure 146 13. Billboard Sign on Flexible Poles 158 13.1 Analytical Procedure 158 14. Frequently Asked Questions 166 14.1 Wind Speed 166 14.2 Load Factor 167 14.3 Terrain Exposure 168 14.4 MWFRS and C&C 169 14.5 Gust Effect Factor 169 14.6 Pressure Coefficient 170 14.7 Force Coefficient 172 14.8 Miscellaneous 173 References 176 Index 180 A 180 B 180 C 180 D 180 E 180 F 180 G 181 H 181 I 181 L 181 M 181 O 181 P 182 R 182 S 182 T 182 U 182 V 182 W 182 About the Authors 184 Cover......Page 1 Contents......Page 6 Preface......Page 8 Unit Conversions......Page 9 1. Introduction......Page 10 1.2 Significant Changes and Additions......Page 11 1.3 Limitations of the Standard......Page 13 1.4 Technical Literature......Page 15 2.2 Velocity Pressure......Page 18 2.3 Analytical Procedure......Page 19 2.4 Simplified Procedure......Page 21 2.6 Equations for Graphs......Page 24 3.1 Wind Speed Maps......Page 32 3.3 Wind Risks......Page 34 4. 160-ft-Tall Office Building......Page 36 4.1 Analytical Procedure......Page 38 4.2 Building Located on an Escarpment......Page 48 4.3 Simplified Method for Buildings Less Than 160 ft Tall......Page 50 5. Commercial/Warehouse Metal Building......Page 60 5.1 Analytical Procedure......Page 62 5.2 Simplified Method for Low-Rise Building......Page 71 6. Commercial Building with Concrete Masonry Unit Walls......Page 80 6.1 Analytical Procedure......Page 82 6.2 Simplified Method for Low-Rise Buildings......Page 88 7.1 Analytical Procedure......Page 92 8.1 Analytical Procedure......Page 106 9.1 Analytical Procedure......Page 116 10. Open Building with Gable Roof......Page 130 11.1 Analytical Procedure......Page 138 12.1 Analytical Procedure......Page 146 13.1 Analytical Procedure......Page 158 14.1 Wind Speed......Page 166 14.2 Load Factor......Page 167 14.3 Terrain Exposure......Page 168 14.5 Gust Effect Factor......Page 169 14.6 Pressure Coefficient......Page 170 14.7 Force Coefficient......Page 172 14.8 Miscellaneous......Page 173 References......Page 176 F......Page 180 O......Page 181 W......Page 182 About the Authors......Page 184 This helpful guide focuses on the wind load provisions of Minimum Design Loads for Buildings and Other Structures, Standard ASCE/SEI 7-10, that affect the planning, design, and construction of buildings for residential and commercial purposes. The 2010 revision of the Standard significantly reorganized the wind load provisions, expanding them from one to six chapters. Simplified methods of performing calculations for common situations were added to the Standard, and guidelines for components and cladding were gathered in a single chapter. Wind Loads provides users with tools and insight to apply the Standard in everyday practice. This revised and updated guide introduces readers to the relevant sections of the Standard and provides a comprehensive overview of the design procedures and the new wind speed maps. Ten chapters with 14 worked examples demonstrate the appropriate use of analytical and simplified procedures for calculating wind loads for a variety of common structure types. The guide also answers more than 30 frequently asked questions, grouped by topic. This book is an essential reference for practicing structural engineers, as it offers the most authoritative and in-depth interpretation of the wind loads section of Standard ASCE/SEI 7-10. This book examines the physical testing of textiles in the form of fibre, yarn and fabric, the emphasis throughout eing on standard and reproducible tests. After an introductory explanation of sampling and measurement, the author explores the effects of moisture on textiles, then goes on to discuss fibre dimension, yarn tests for linear density, twist, evenness and hairiness, tensile strength, and dimensional stability and serviceability. Also covered are aspects of comfort and fabric handle, colour fastness and quality assurance. The book's comprehensive coverage of the physical properties of textiles makes it an essential reference for managers in the textiles industry concerned with quality assurance, garment and fabric technologists, and students of textile science and engineering. Covers the physical testing of textiles in the form of fiber, yarn, and fabric - based mainly on British and American standard methods of testing. This work covers topics including: sampling; measurement errors; fiber length and width measurement; yarn linear density; twist; evenness; hairiness; tensile strength of all forms; and, tear strength. Mehta and Coulbourne explain the wind load provisions of Standard ASCE/SEI 7-10 as they affect the planning, design, and construction of buildings for residential and commercial purposes.