G/TBT/N/CHL/403  
29 May 2017  
(17-2840) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  Spanish  
 
  NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6.  
 
1. Notifying Member : CHILE 
If applicable, name of local government involved (Articles 3.2 and 7.2):   
2. Agency responsible : Ministerio de Obras Públicas  (Ministr y of Public Works)  
Name and address (including telephone and fax numbers, email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:  
Dirección Gener al de Relaciones Económicas Internacionales  (Directorate -General of 
International Economic Relations), Ministerio de Relaciones Exteriores  (Ministry of Foreign 
Affairs)  
3. Notified under Article 2.9.2 [ ], 2.10.1 [ ], 5.6.2 [X], 5.7.1 [ ], other:  
4. Prod ucts covered (HS or CCCN where applicable, otherwise national tariff 
heading . ICS numbers may be provided in addition, where applicable) : Steel 
structures  
5. Title, number of pages and language(s) of the notified document : NCh 427/1 : 2016 
Construcción - Estructuras de acero - Parte 1 : Requisitos para el cálculo de estructuras de 
acero para edificios  (Chilean Standard No. 427/1:2016, Construction - Steel structures - 
Part 1 : Requirements for calculating steel structures for buildings) (299 pages, in Spanish )  
6. Description of content : This Standard covers the design of steel structural systems in 
structures made of reinforced concrete and structural steel, which contain the steel 
components defined in Chilean Standard No. 428 (see Annex 4).  The Standard co ntains a 
section on symbols, a glossary, Chapters A to N, and Annexes 1 to 8 . Comments and notes 
are also included . It establishes criteria governing the design  and construction of structural 
steel buildings and other structures (where other structures are  defined as those designed  
and constructed  in a way similar to buildings, meaning their elements resistant to vertical 
and lateral loads are similar to resistant systems in buildings) . Where this Standard refers 
to the applicable building code, and such a code does not exist, the loads, load 
combination, structural limitations, and general design requirements will be those specified 
in ASCE/SEI 7 . For all purposes, it should be understood that the applicable building code 
corresponds to the General Ordinanc e on Urban Planning and Construction and existing 
Chilean Standards . Where the requirements are not covered by this Standard, the design 
may be based on tests or analysis, where approved by the competent authority . 
Alternative analysis and design methods m ay be used, provided that they are accepted by 
the competent authority.  Please note that for the design of cold -formed structural 
members less than 25mm thick (with the exception of HSS tubular sections), it is 
recommended that the provisions of Chilean St andard No. 427/2 be applied (Standard 
under review, see Annex 4).  
7. Objective and rationale, including the nature of urgent problems where 
applicable : Protection of human health and safety ; Quality requirements.  G/TBT/N/CHL/403  
- 2 - 
  8. Relevant documents:  
  Ordenanza General  de Urbanismo y Construcciones  (General Ordinance on Urban 
Planning and Construction)  
  Norma Chilena NCh 428  (Chilean Standard No. 428) 
  ANSI/ AISC 360 -10: Specification for Structural Steel Buildings  
9. Proposed date of adoption : - 
Proposed date of entry  into force : - 
10. Final date for comments : 60 days from the date of notification.  
11. Texts available from : National enquiry point [ ] or address, telephone and fax 
numbers and email and website addresses, if available, of other body:  
Ministerio de Rela ciones Exteriores  
Teatinos 180, piso 11  
Tel.: (+56)-2-22827 -5250 
Fax: (+56)-2-22380 -9494 
Email: tbt_chile@direcon.gob.cl  
Note: To view the above -mentioned Chilean Standard, go to https://www.inncoleccion.cl/  
and enter the following data:  
Company : DIRECON -015 
Username : direcon  
Password : direcon  
Email: tbt_chile@direcon.gob .cl