SS EN 1991-1-4-2009 - Preview

     

SS EN 1991-1-4 : 2009

 

EN 1991-1-4 : 2005, IDT

 

(ICS 91.010.30) 

SINGAPORE STANDARD

Eurocode 1 : Actions on structures – Part 1-4 : General actions – Wind actions (This national standard is the identical implementation of EN 1991-1-4 : 2005 and is adopted with permission of CEN, Avenue Marnix 17, 1000 Brussels)

     

 

 

 

 

 

 

Published by 

SS EN 1991-1-4 : 2009 EN 1991-1-4 : 2005, IDT (ICS 91.010.30)

SINGAPORE STANDARD

Eurocode 1 : Actions on structures – Part 1-4 : General actions – Wind actions

All rights reserved. Unless otherwise specified, no part of this Singapore Standard may be reproduced or utilised in any form or by any means, electronic or mechanical, including photocopying and microfilming, without permission in writing from SPRING Singapore at the address below:

Standards SPRING Singapore 1 Fusionopolis Walk, #01-02 South Tower, Solaris Singapore 138628 Email : [email protected]

ISBN 978-981-4278-06-5

SS EN 1991-1-4 : 2009 This Singapore Standard was approved by the Building and Construction Standards Committee on behalf of the Standards Council of Singapore on 25 March 2009. First published, 2009 The Building and Construction Standards Committee appointed by the Standards Council consists of the following members: Name Chairman st

1 Dy Chairman 2

nd

Capacity

: Mr Goh Peng Thong

Member, Standards Council

: Mr Lee Chuan Seng

Member, Standards Council

Dy Chairman : Mr Tan Tian Chong

Member, Standards Council

Secretary

: Mr James Choo Sou Yong

SPRING Singapore

Members

: Mr Boo Geok Kwang

Singapore Civil Defence Force

Co-opted Member

Er. Chan Ewe Jin

Institution of Engineers, Singapore

Mr Chan Yew Kwong

Ministry of Manpower

Mr Paul Fok

Land Transport Authority

Mr Goh Ngan Hong

Singapore Institute of Surveyors and Valuers

Mr Anselm Gonsalves

National Environment Agency

Mr Desmond Hill

Singapore Contractors Association Limited

Mr Benedict Lee Khee Chong

Singapore Institute of Architects

Ms Andris Leong

Building and Construction Authority

Assoc Prof Leong Eng Choon

Nanyang Technological University

Dr Lim Lan-Yuan

The Association of Property and Facility Managers

Mr McDonald Low

Real Estate Developers’ Association of Singapore

Mr Larry Ng Lye Hock

Urban Redevelopment Authority

Assoc Prof Gary Ong Khim Chye

National University of Singapore

Mr Davis Ong Wee Choon

Singapore Manufacturers’ Federation

Er. Shum Chee Hoong

Housing & Development Board

Dr Tan Guan

Association of Consulting Engineers, Singapore

Mr Tang Pei Luen

JTC Corporation

: Dr Tam Chat Tim

Individual Capacity

ii

SS EN 1991-1-4 : 2009 The Technical Committee on Building Structure and Sub-structure appointed by the Building and Construction Standards Committee and responsible for the preparation of this standard consists of representatives from the following organisations: Name

Capacity

Chairman

: Dr Tan Guan

Member, Building and Construction Standards Committee

Co-Chairman

: Er. Chew Keat Chuan

Building and Construction Authority

Secretary

: Ms Lee Hiok Hoong

SPRING Singapore

Members

: Er. Chan Ewe Jin

Institution of Engineers, Singapore

Co-opted Member

Dr Chen Enyi

Cement and Concrete Association of Singapore

LTC Cheok Poh Chin

Singapore Civil Defence Force

Dr Sujit Ghosh

Ready Mix Concrete Association of Singapore

Dr Ho Nyok Yong

Singapore Contractors Association Ltd

Mr Ho Wan Boon

Singapore Structural Steel Society

Mdm Neo Bian Hong

Land Transport Authority

Assoc Prof Gary Ong Khim Chye

Singapore Concrete Institute

Mr Sze Thiam Siong

Setsco Services Pte Ltd

Er. Angeline Tan Bee Hoon

Housing & Development Board

Er. Tan Jui Teck

CPG Corporation Pte Ltd

Assoc Prof Tan Kiang Hwee

National University of Singapore

Er. Tang Pei Luen

JTC Corporation

Assoc Prof Susanto Teng

Nanyang Technological University

: Dr Tam Chat Tim

Individual Capacity

Dr Tan Teng Hooi

Individual Capacity

The following Technical Experts contributed in their individual capacity to the preparation of the Singapore National Annex to enable local adoption of the EN 1991-1-4 : 2005 Dr Tan Teng Hooi (WG Convenor) Er. Thung Sek Kwang (WG Secretary) Er. Tan See Chee (Taskforce Leader) Professor T Balendra Mr Adrian Billinghurst Er. Chan Yek Seng Er. Fred Lee Ka Wing Dr Leong Eng Choon Dr Richard Liew Jat Yuen Er. Lim Peng Hong Er. Low Kam Fook Mr Ong Yew Hing Dr Tan Kang Hai Er. Tan See Chee Er. Tay Yak Hong Er. Yang Kin Seng

iii

SS EN 1991-1-4 : 2009 The organisations in which the experts are involved are: Beca Carter Hollings Ferner (SEA) Pte Ltd Building and Construction Authority CPG Consultants Pte Ltd Defence Science & Technology Agency Jurong Consultants Pte Ltd Maunsell Consultants (Singapore) Pte Ltd Nanyang Technological University National Environment Agency National University of Singapore TYH Consulting Engineers TY Lin International Pte Ltd Worley Parsons Pte Ltd

iv

SS EN 1991-1-4 : 2009

National Foreword This Singapore Standard was prepared by the Technical Committee on Building Structure and Substructure under the direction of the Building and Construction Standards Committee. This SS EN is the identical implementation of EN 1991-1-4 : 2005 ‘Eurocode 1 – Actions on structures – Part 1-4: General actions – Wind actions’ and is adopted with permission of CEN, Rue de Stassart 36, B-1050 Brussels. Attention is drawn to the following: –

The comma has been used throughout as a decimal marker whereas in Singapore Standards, it is a practice to use a full point on the baseline as the decimal marker.

–

The Singapore Standards which implement international or European publications referred to in this document may be found in the SS Electronic Catalogue at: http://www.singaporestandardseshop.sg

–

The terrain categories in EN 1991-1-4 are not applicable in Singapore. For simplicity and to avoid the difficulties of assessing the loads when the structures are in the transition region between rural to suburban terrains, the committee decided that all structures are to be designed using rural/country terrain (Category II in EN 1991-1-4) except the low rise roof structures up to 25 m height within 2 km from the sea coast. To safeguard against uplift forces, these low rise roof structures (such as hanger and warehouse) within 2 km from the sea coast are to be designed using the terrain for sea (Category 0 in EN 1991-1-4)] (see guidelines given in the Singapore National Annex).

Where a normative part of this EN allows for a choice to be made at national level, the range and possible choice will be given in the normative text, and a note will qualify it as a Nationally Determined Parameter (NDP). NDPs can be a specific value for a factor, a specific level or class, a particular method or a particular application rule if several are proposed in the EN. The requirements of this SS EN 1991-1-4 : 2009 are to be read in conjunction with the Singapore National Annex (NA) to SS EN 1991-1-4 : 2009 which contains information on the Singapore Nationally Determined Parameters (NDP) and is published separately. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. At the time of publication, this standard is expected to be used as a reference in the Building and Construction Authority’s ‘Approved Document – Acceptable Solutions’. Attention is drawn to the possibility that some of the elements of this Singapore Standard may be the subject of patent rights. SPRING Singapore shall not be held responsible for identifying any or all of such patent rights.

NOTE 1.

Singapore Standards are subject to periodic review to keep abreast of technological changes and new technical developments. The changes in Singapore Standards are documented through the issue of either amendments or revisions.

2.

Compliance with a Singapore Standard does not exempt users from legal obligations.

v

SS EN 1991-1-4 : 2009

(blank page)

vi

EN 1991-1-4

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM

April 2005

ICS 91.010.30

Supersedes ENV 1991-2-4:1995

English version

Eurocode 1: Actions on structures - Part 1-4: General actions Wind actions Eurocode 1: - Actions sur les structures - Partie 1-4: Actions générales - Actions du vent

Eurocode 1: Einwirkungen auf Tragwerke - Teil 1-4: Allgemeine Einwirkungen - Windlasten

This European Standard was approved by CEN on 4 June 2004. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36

© 2005 CEN

All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

B-1050 Brussels

Ref. No. EN 1991-1-4:2005: E

   





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