Wind Engineering 1983. Proceedings of the Sixth international Conference on Wind Engineering, Gold Coast, Australia, March 21–25, And Auckland, New Zealand, April 6–7 1983; held under the auspices of the International Association for Wind Engineering PDF
Preview Wind Engineering 1983. Proceedings of the Sixth international Conference on Wind Engineering, Gold Coast, Australia, March 21–25, And Auckland, New Zealand, April 6–7 1983; held under the auspices of the International Association for Wind Engineering
Studies in Wind Engineering and Industrial Aerodynamics Vol. 1 Engineering Meteorology: Fundamentals of Meteorology and Their Application to Problems in Environmental and Civil Engineering (Plate, Editor) Vol. 2 Wind Effects on Civil Engineering Structures (KolouSek, Pirner, Fischer and Näprstek) Vol. 3 Wind Engineering 1983, Parts A—C. Proceedings of the Sixth International Conference on Wind Engineering (Holmes, Jackson and Melbourne, Editors) Studies in Wind Engineering and Industrial Aerodynamics, 3C Wind Engineering 1983 Proceedings of the Sixth International Conference on Wind Engineering, Gold Coast, Australia, March 21—25, and Auckland, New Zealand, April 6—7, 1983; held under the auspices of the International Association for Wind Engineering edited by J.D. HOLMES C.S.I.R.O. Division of Building Research, Highett, Victoria, Australia P.S. JACKSON Mechanical Engineering Department, University of Auckland, New Zealand W.H.MELBOURNE Department of Mechanical Engineering, Monash University, Clayton, Victoria, Australia PARTC (Sessions 17-24) This set of pages has been published as a special issue of Journal of Wind Engineering and Industrial Aerodynamics, Vol. 15 ELSEVIER Amsterdam — Oxford — New York — Tokyo 1984 ELSEVIER SCIENCE PUBLISHERS B.V. 1, Molenwerf P.O. Box 211, 1000 AE Amsterdam, The Netherlands Distributors for the United States and Canada: ELSEVIER SCIENCE PUBLISHING COMPANY INC. 52, Vanderbilt Avenue New York, N.Y. 10017 ISBN 0-444-42342-7 (Vol. 3C) ISBN 0-444-42344-3 (Set) ISBN 0-444-41973-X (Series) © Elsevier Science Publishers B.V., 1984 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or other- wise, without the prior written permission of the publisher, Elsevier Science Publishers B.V., P.O. Box 330, 1000 AH Amsterdam, The Netherlands Printed in The Netherlands V FOREWORD The Sixth International Conference on Wind Engineering was held in two Sections. The First Section was held at Australia's Gold Coast on 21-25 March 19Ö3 and the Second Section was held at Auckland, New Zealand on 6-7 April 19Ö3. Previous Conferences in this series were held as follows: first in Teddington, England (June 1963)i second in Ottawa, Canada (September 1967); third in Tokyo, Japan (September 1971); fourth in Heathrow, England (September 1975); and the fifth in Fort Collins, USA (July 1979). The first four conferences were held under the title "International Conference on Wind Effects on Buildings and Structures". Since the formation of the International Association for Wind Engineering in 1975 the conferences have been held under the title "International Conference on Wind Engineering". In I98O the International Association for Wind Engineering became formally associated with (what then became renamed) the Journal of Wind Engineering and Industrial Aerodynamics, published by Elsevier Scientific Publishing Company, Amsterdam, and which became the official organ of the Association. XV INTRODUCTION INTERNATIONAL ASSOCIATION FOR WIND ENGINEERING The International Association fo Wind Engineering (IAWE) came into being on 10 September 1975 through action of the Steering Committee for the International Study Group on Wind Effects on Buildings and Structures. Primary purposes of the IAWE are: (1) organize and maintain continuity of international conferences on wind engineering that began with the International Conference on Wind Effects on Buildings and Structures held at Teddington, UK, in 1963 and (2) establish liaison with national and international organizations working in related fields. At the Fifth International Conference on Wind Engineering held at Colorado State University in Fort Collins, Colorado, USA on 8-lU July 1979 the Steering Committee of the International Association accepted an invitation from Australia and New Zealand to host the Sixth International Conference on Wind Engineering. In particular it was decided to include the topic of wind energy into the programme. Minutes of the Steering Committee of the International Association for Wind Engineering which met during the Sixth International Conference on Wind Engineering are presented in Appendix 1 of these proceedings. THE CONFERENCE The conference was held in two sections Section 1 was held at Australia's Gold Coast near Brisbane, Queensland, 21-25 March 19Ö3, and contained topics related to the characteristics of wind, the aerodynamics, design, economics, full scale measurement and modelling of buildings and other structures, for wind loading effects, and environmental effects arising from wind, including the dispersion of atmospheric polllutants. Section 2 was held in Auckland, New Zealand, 6-7 April 19&3, and contained topics related to wind energy, in particular covering wind generator aerodynamics and performance, wind characteristics, site studies and flow over hills. Two hundred and eight delegates from twenty three countries attended the Conference at which 100 papers were presented. These papers, chosen from a total of 173 offered, are presented in these Proceedings along with the Session Discussions and editorial comments of Session Chairmen and Rapporteurs. PROGRAMME SUMMARY A pre-conference four day tour of North Queensland and the Great Barrier Reef was attended by some 2k Delegates. It started by a tour of inspection of Wind Engineering Research at James Cook University and of tropical cyclone resistant housing construction, and then on through North Queensland and the Great Barrier Reef with a tour finale dinner on Saturday 19 March. The Conference Sessions of Section 1 were held in the Convention Centre of the Chevron Surfers Paradise Hotel. Monday 21 March Morning Opening/Technical Session 1 Welcome by Professor W.H. Melbourne, Chairman of the IAWE and Conference Organising Committee Opening Address by Mr. J. McG. Mclntyre, President of The Institution of Engineers, Australia Keynote Address by Professor A.G. Davenport, Director Boundary Layer Wind Tunnel Laboratory, University of Western Ontario Technical Session 2 Wind Characteristics: Strong Winds & Tropical Cyclones Afternoon Technical Session Wind Characteristics: Long Term Wind Statistics Technical Session Wind Loading of Tall Buildings (a) Evening Hawaiian Luau Tuesday 22 March Morning Technical Session 5 Wind Loading of Tall Buildings (b) Technical Session 6 Wind Loading of Low Rise Structures (a) Afternoon Technical Session 7 Wind Loading of Low Rise Structures (b) Technical Session 8 Instrumentation and Experimental Techniques for Wind Loading Evening IAWE Steering Committee Meeting Wednesday 23 March Morning Technical Session 9 Safety and Risk: Wind Codes Technical Session 10 Low Rise Building Wind Resistant Design Afternoon Technical Session 11 Wind Loading of Chimneys and Cooling Towers Evening Cruise to Sea World and Conference Dinner Thursday 2h March Morning Technical Session 12 Wind Loading of Bridges Technical Session 13 Wind Loading of Cables and Transmission Lines Afternoon Technical Session ik Wind Loading of Towers and Offshore Platforms Technical Session 15 Fundamentals of Bluff Body Aerodynamics Friday 25 March Morning Technical Session l6 Bluff Body Aerodynamics and Mathematical Models of Wind Loading Technical Session 17 Internal Pressures, Natural Ventilation and Heat Losses Due to Wind Afternoon Technical Session 18 Topographic Modelling, Disperison of Gaseous Pollutants Technical Session 19 Wind Environment and Shelter Closure The foregoing programme was supplemented by a Guest Programme of tours in the Brisbane, Gold Coast regions. In addition to the formal techniacl programme, informal workshops were held on the topics of : the International Aylesbury Collaborative Experiment, design wind speeds in tropical-cyclone-prone locations, wind loading codes and standards. XV11 On Saturday 26th March about 50 Delegates commenced a Study Tour to Sydney, Canberra and Melbourne and then across to Christchurch and Wellington to the commencement of Section 2 of the Conference in Auckland, New Zealand. Centres visited were the University of Sydney, Centre Point Tower, Monash University, CSIRO Division of Buidling Research, University of Christchurch and Lincoln College, University of Wellington and the Central Laboratory of the Government Ministry of Works Programme on wind engineering and the University of Auckland. The Conference Sessions of Section 2 were held in the University of Auckland Conference Centre. Tuesday 5 April Evening Registration and Welcome Cocktail Party Wednesday 6 April Morning Opening/Technical Sessions Welcome by Associate Professor D.H Freeston, Geothermal Institute, University of Auckland. Opening Address by Professor R.F. Meyer, Dean of Engineering, University of Auckland and Chairman of the New Zealand Energy Research and Development Committee and of the Energy Advisory Committee. Technical Session 20 Wind Characteristics: Structure and Statistics (a) Technical Session 21 Wind Characteristics: Structure and Statistics (b) Afternoon Technical Session 22 Wind Characteristics: Flow Over Hills and Ridges Thursday 7 April Morning Technical Session 23 Wind Power Systems (a) Technical Session 2k Wind Power Systems (b) Afternoon Closing Session Evening Conference Dinner ACKNOWLEDGEMENTS The Sixth International Conference on Wind Engineering covered a great deal of territory both scholastically and physically. The Conference will be remembered as one in which a larger number of people than usual contributed to and shared in the work of organisation and it is to all of these people that I wish to express my sincere thanks. Members of the Conference Commitee from Australia and New Zealand are listed in Appendix 2. Of those, our Conference Secretary, Mrs. Irene Cody played a major role from the very first contacts with Preliminary Registrants right through the Conference to the completion of those thousand and one tasks and interactions with authors which produce the final Proceedings; to her we give very special thanks for the smooth running of the Conference. At the Gold Coast our Guest Delegates were very grateful for the preparations of Dr. & Mrs. Simmons and the personal hostessing of the Tours by Mrs. Meredith Melbourne. We are indebted to the fine organisation of the University of Auckland Continuing Education Department for the hosting of the New Zealand Conference Sessions. XVUl SPONSORS Grateful acknowledgement and thanks are expressed to the following sponsors who gave either support from their resources or direct financial support. Department of Mechanical Engineering, Monash University Division of Building Research, C.S.I.R.O. Department of Mechanical Engineering, University of Auckland Department of Civil and Systems Engineering, James Cook University Department of Civil Engineering, University of Sydney Department of Mechanical Engineering, University of Queensland Department of Mechanical Engineering, Canterbury University The Institution of Engineers, Australia Central Laboratories, Ministry of Works, New Zealand Civil Engineering Consultants in Australia Dulmison (Australia ) Pty. Ltd. Qantas Airways Limited Trans Australia Airlines W.H. Melbourne Chairman. SESSION IT IHTERNAL PRESSURES, HATURAL VENTILATION AMD HEAT LOSSES DUE TO WIND CHAIRMAN C. Kramer Professor, Fluid Mechanics Laboratory Fachhochschule, Aachen West Germany CO-CHAIRMAN H. van Koten Institute TNO for Building Material and Structures, Netherlands RAPPORTEUR L. Pham Division of Building Research CSIRO Melbourne, Australia Journal of Wind Engineering and Industrial Aerodynamics, 15 (1983) 3—13 3 Elsevier Science Publishers B.V., Amsterdam — Printed in The Netherlands PRESSURE RESPONSE INSIDE DOUBLE GLAZED WINDOWS T. YAMAUCHI, S. KAWABATA, T. MOCHIZUKI NIPPON SHEET GLASS CO., LTD. Product and Engineering Dpt. SUMMARY Concerning the response characteristics of air pressure inside of double glazed window, theoretical analysis and experiment have been investigated. Analysis method is a combination of a Helmholtz resonator model and a vibration model of glass, and could get a good correspondence with the experimental result. When the frequency range in which glass comes up to resonance point, is divided into three steps, in low frequency range, friction force of leading tube, glass rigidity and volume of air space are related to response charac- teristics, and in middle frequency range, only glass rigidity and volume of air space are related. In third step, resonance phenomenon is equivalent to spring system which consists of the spring by rigidity of glass itself and airspring which occurs in air space between two glasses. It is considered that in actual double glazed windows Helmholtz resonance will not occur in most cases. NOTATION A area of leading tube S area of glass plate a half width of glass plate t time b half length of glass plate V volume of air space a C capacity of air space X,x displacement of air slug E Young's modulus of glass y equivalent displacement of glass e plate f frequency a deflection coeff. of glass plate h thickness of glass plate ß discharge coeff. of leading tube j imaginary unit Smax maximum deflection of glass K equivalent rigidity of glass plate e plate Le equivalent length of leading tube ζ friction loss coeff. Me equivalent mass of glass plate η coordinate n polytropic constant y viscosity of air Pa pressure of air space V Poisson's ratio of glass Pi internal pressure ξ coordinate Po external pressure pa. density of air R friction coeff. of leading tube pg density of glass r damping coeff. of glass plate ω angular frequency 0167-6105/83/$03.00 © 1983 Elsevier Science Publishers B.V.
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