ACTIONS ON STRUCTURES　WIND LOADS
CIB Report Publication 193

＜この本の概要＞ 研究ないしは実務上必要な、風荷重に関する知識、主要な理論及び数式が簡潔に、かつ具体的に述べられている。たとえば、３.１風の性状では、プロファイル、乱れ強さ、乱れスケール、パワースペクトル、コヒーレンスなど、また、４.１風力モデルではラティスモデル、ストリップッモデル、ブラッフボデーモデル等が簡潔に分かりやすく解説してあります。

以下に簡単に目次だけ紹介します。

１ 序

２ 気象概論

２.１ 大気
２.２ 前線
２.３ 代表的なサイクローン（ハリケーンあるいは台風）
２.４ トルネイド（竜巻）
２.５ ダストデュビルス
２.６ サンダーストーム
２.７ 山岳風

３ 風の構造

３.１ 序
３.２ 長期間の確率モデル（期待値）
３.３ 風の性状

４ 風圧，風力と応答

４.１ 風力モデル
４.２ 変動風圧力と風力係数
４.３ 建物の空力上のモデル

５ ブラッフボデーモデル

５.１ 確率モデル

６ 風荷重の工学モデル

６.１ 静的構造物
６.２ 動的構造物
６.３ 空力弾性
６.４ モデルの不確定性

CONTENTS

1.INTRODUCTION
2.CLIMATIC BACKGROUND
2.1 Atmosfsferic circulation
2.2 Depressions
2.3 Tropical cyclones
2.4 Tomadoes
2 5 Dustdevils
2 6 Thunderstorms
2.7 Katabatic winds and lce waves
3.WINDSTRUCTURE
3.1 Introduction
3.2 Longterm stationary model (Macrometeorologic model)
3.3 Short term model (Micrometeorologic model)
4.PRESSURES, FORCES AND RESPONSE OF STRUCTURE
4 1 Wind Force models
4.2 Kinetic pressure and loading coefficient
4.3 Models for building areodynamics
5.THE BLUFF BODY MODEL
5.1 Probabilistic model
5.2 Codification
6.ENGINEERING MODEL
6.1 Static structures
6.2 Dynamic structures
6.3 Aeroelasticity
6.4 Model uncertainties
REFERENCES
APPENDIX A: MEASUREMENT OF LOADING DATA (GENERAL)
APPENDIX B: THE VON KARMAN SPECTRUM
APPENDIX C: GENERAL DESCRIPTION OF THE ENGlNEERING MODEL

1. INTRODUCTION

Wind Engineering covers a wide field of engineering including the subject of the forces on buildings and structures, wind flows around buildings (environmental winds) and the dispersal of pollutants. In this CIB report we shall be concerned only with the first of these.

That part of the subject of Wind Engineering concerned with the design of structures to resist wind forces can be divided into three distinct sub-parts corresponding to the physical processes involved.

l. The first concerns the mechanisms which produce strong winds and the description of the characteristics of these winds when blowing over the surface of the Earth. This part of the subject is treated in Chapters 2 and 3.

2. The second concerns the forces and pressures which the wind exerts on structures over which it flows. These forces are fluctuating, not only because the incident flow is turbulent, but also because of the detailed flows induced by the structure itself. Since the forces are intimately related to flows over the surface of the structure, which are in turn determined both by the characteristics of the incident flow and the shape of the structure, another large body of experimental data is required to provide comprehensively for the many situations met with in design. This part of the subject is treated in Chapters 4 and 5.

3. The third part concerns the static and dynamic response of the structure to these wind forces. In many cases the dynamic part of the response is negligible and design is then concerned only with ensuring the stability of the structure and its component parts under the action of the most severe quasi static wind loading expected in the lifetime of the structure. In a smaller number of cases the dynamic response of the structure is not negligible. Then the design must achieve control of the response so as to produce a serviceable structure. Here design may be concerned with the problems of human comfort and tolerance, with compliance with performance criteria and sometimes with fatigue. In a very small class of structures the dynamic response is such that it actually alters significantly the forces which are producing the response and then the designer is dealing with so-called 'Aeroelastic' structures. The subject of structural response is covered in Chapter 6. This is done by the description of a commonly used engineering model.

紹介者：石橋龍吉, 住宅・都市整備公団　建築技術試験場
　

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CIB出版物の価格：ACTIONS ON STRUCTURES　WIND LOADS CIB Report Publication 193
・CIBメンバー：HFI.(Dutch Guilders)60.-
・メンバー以外：HFI.(Dutch Guilders)75.-

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