“Prepared by the Wind Tunnel Testing for Buildings and Other Structures Standards Committee of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE. Wind Tunnel Studies for Buildings and Other Structures, Standard ASCE/SEI 49-12, provides the minimum requirements for conducting and interpreting wind tunnel tests to determine wind loads on buildings and other structures. Wind tunnel tests are used to predict the wind loads and responses of a structure, structural components, and cladding to a variety of wind conditions. This Standard includes commentary that elaborates on the background and application of the requirements. Topics include:
simulation of wind in boundary-layer wind tunnels; local and area-averaged winds loads; overall wind effects; aeroelastically active structures; extreme wind climate; and snow load model studies.

The requirements outlined in this Standard satisfy requirements for wind tunnel testing set out in Minimum Design Loads for Buildings and Other Structures, Standard ASCE/SEI 7. The loads produced by these tests are suitable for use in building codes and standards. This Standard will be useful to those who design, conduct, and interpret wind tunnel tests for buildings, including structural engineers, architects, and building code officials.”

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PDF Pages	PDF Title
1	Cover
10	Contents
14	1 General 1.1 Scope 1.2 Report Content 1.3 Coordinate Systems 1.4 Definitions 1.5 Symbols and Notation
16	2 Simulation of Wind in Boundary-Layer Wind Tunnels 2.1 General 2.2 Requirements for Simulation of the Approach Flow 2.2.1 General 2.2.2 The Reference Approach Flow 2.2.3 Simulation of the Approach Flow
17	2.3 Geometric Scale Considerations
18	3 Local and Area-Averaged Wind Loads 3.1 General 3.2 Local Pressures 3.3 Area-Averaged Pressures 3.4 Internal Pressures
20	4 Overall Wind Loads (Excluding Aeroelastic Effects) 4.1 Force Balance Technique 4.2 Instantaneous Spatial Pressure Integration
22	5 Aeroelastically Active Structures 5.1 General 5.2 Aeroelastic Modeling Procedure 5.3 Scaling of the Wind 5.4 Testing
24	6 Extreme Wind Climate 6.1 General 6.2 Analysis of Wind Data 6.3 Hurricanes 6.4 Other Winds 6.5 Combination of Wind and Wind Tunnel Data
26	7 Snow Load Model Studies
28	8 Accuracy, Precision, and Quality Assurance
30	COMMENTARY
32	C1 General C1.4 Definitions C1.5 Symbols and Notation
34	C2 Simulation of Wind in Boundary-Layer Wind Tunnels C2.1 General C2.2 Requirements for Simulation of the Approach Flow C2.2.1 General C2.2.2 The Reference Approach Flow
36	C2.2.3 Simulation of the Approach Flow C2.3 Geometric Scale Considerations
38	C3 Local and Area-Averaged Wind Loads C3.2 Local Pressures C3.3 Area-Averaged Pressures C3.4 Internal Pressures
40	C4 Overall Wind Loads (Excluding Aeroelastic Effects) C4.1 Force-Balance Technique C4.1.1 High-Frequency Force-Balance C4.1.2 Principles and Assumptions C4.1.3 Adjustments for Base-Balance Mechanical Admittance
41	C4.1.4 Adjustments for Mode Shape C4.1.5 Treatment of Coupled Degrees of Freedom C4.1.6 Multilevel Force-Balance C4.1.7 Forced Oscillation C4.2 Instantaneous Spatial Pressure Integration
42	C5 Aeroelastically Active Structures C5.1 General C5.1.1 Types of Aeroelastic Instability
43	C5.1.2 Effects of Turbulence C5.2 Aeroelastic Modeling Procedure C5.2.1 Requirements for Dynamic Similarity
44	C5.2.2 Types of Aeroelastic Models
46	C6 Extreme Wind Climate C6.1 General C6.1.1 Wind Types and Their Effects on the Wind Database C6.1.2 Extratropical Storm Systems C6.1.3 Thunderstorms C6.1.4 Hurricanes C6.2 Analysis of Wind Data C6.2.1 Background
47	C6.2.2 Hourly Wind Speed Data: The Parent Distribution Approach C6.2.3 Wind Speed and Response Prediction Using Extreme Value Analysis C6.2.4 Comparison of Wind Climate Models C6.3 Hurricanes C6.4 Other Winds
48	C6.5 Combination of Wind and Wind Tunnel Data
50	C7 Snow Load Model Studies C7.1 Introduction
51	C7.2 Mechanisms of Snow Drifting C7.3 Scaling Requirements for Particle Methods
52	C7.4 Application of Particle Methods
53	C7.5 Application of the Time Step Simulation Method
54	C8 Accuracy, Precision, and Quality Assurance C8.1 General C8.2 Precision
55	C8.3 Accuracy C8.4 Quality Assurance
56	C8.5 Conduct of Tests and Analyses C8.6 Sources of Error
58	REFERENCES
62	INDEX A B C D E F G H I J L M N P
63	Q R S T U V W

Published By	Publication Date	Number of Pages
ASCE	2012	63


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Standard Title	ASCE 49 Wind Tunnel Testing for Buildings and Other Structures
Published Code	ASCE
Publication Date	2012
Pages Count	63

ASCE 9780784476901 2012

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