SP RK EN 1991-1-4:2005/2011 PDF
Name in English:
SP RK EN 1991-1-4:2005/2011
Name in Russian:
СП РК EN 1991-1-4:2005/2011
Actions on structures. Part 1-4. General actions. Wind actions (including cor. as of July 2009 and January 2010)
Full title and description
SP RK EN 1991-1-4:2005/2011 — "Actions on supporting structures. Part 1-4: General actions — Wind actions" (national adoption for the Republic of Kazakhstan of EN 1991-1-4:2005, with national application dated 2011). This document is the Kazakhstan (СП РК) national version/adoption of Eurocode 1 — Part 1-4 and sets rules and procedures for determining wind actions on buildings, civil engineering works, components and cladding, and for assessing dynamic and aeroelastic effects where relevant.
Abstract
This standard gives harmonised methods for calculating characteristic wind actions used in structural design: basic wind velocity, terrain and orography effects, pressure coefficients and zoning (including roof zoning), procedures for global and local wind-load determination, and guidance on dynamic phenomena (vortex shedding, buffeting) and structural amplification. It relies on Nationally Determined Parameters to be specified in a National Annex; the Kazakhstan version provides national application information consistent with the EN text.
General information
- Status: Active (national СП РК adoption in force); based on EN 1991-1-4:2005 with national application 2011.
- Publication date: EN parent standard published 12 April 2005; EN amendment A1 published 2010 (A1:2010). National designation shown as 2005/2011; Kazakhstan effective date listed as 01 July 2015 for the national publication.
- Publisher: National developer/publisher listed as RGP "KazНИИССА" (Kazakh research/development body) and the national standards/technical regulation authority for СП РК publications.
- ICS / categories: Structural Eurocodes / actions on structures — ICS classes referenced in listings: 91.010.30 and national listing 91.040.
- Edition / version: SP RK national edition: SP RK EN 1991-1-4:2005/2011 (reflects EN 1991-1-4:2005 with later amendments / national application).
- Number of pages: Approximately 186 pages (national publication metadata).
Scope
The standard applies to wind actions on land-based structures (whole structures, parts and attached elements such as cladding, canopies, fixings and barriers), and to bridges and other long-span structures within prescribed dynamic-response limits (typical EN guidance limits are up to about 200 m height or span subject to dynamic criteria). It defines procedures to obtain characteristic wind pressures and forces for global and local design, prescribes terrain, orography and roughness treatment, and requires Nationally Determined Parameters in a National Annex for values left to national choice.
Key topics and requirements
- Definition and determination of the basic wind velocity and characteristic wind actions for design.
- Terrain categories, roughness, displacement height and orography effects (rules and illustrative annexes).
- External pressure coefficients and zoning recommendations for roof and façade elements, including tabulated values and interpolation rules.
- Procedures for global and local wind-load calculation, including alternative calculation methods and structural factors (cscd) in annexes.
- Guidance on dynamic and aeroelastic effects (vortex-induced vibration, buffeting) and use of dynamic analysis where required.
- Requirement for National Annex / Nationally Determined Parameters (NDPs) to specify national choices and maps (wind zones) where applicable.
Typical use and users
Used by structural and civil engineers, bridge designers, façade and cladding specialists, geotechnical engineers (when relevant), building control authorities and standards committees in Kazakhstan and by software vendors implementing national load modules. It is applied at the design stage to determine wind loads for structural sizing, stability checks, fatigue/aeroelastic assessments and for selection of appropriate cladding/fastening details.
Related standards
Related documents include other parts of EN 1991 (e.g., EN 1991-1-3 for snow loads), the National Annex (NP / НП / НП к СП РК EN 1991-1-4) and national technical provisions (NTP RK) that provide complementary rules for application in Kazakhstan. National application documents such as NP 2.2.1 to SP RK EN 1991-1-4 and other SP RK Eurocode-adoption documents are commonly used together with this standard.
Keywords
Wind actions; wind load; Eurocode 1; EN 1991-1-4; СП РК; Kazakh national application; pressure coefficients; terrain categories; orography; dynamic effects; vortex shedding; roof zoning; National Annex.
FAQ
Q: What is this standard?
A: SP RK EN 1991-1-4:2005/2011 is the Republic of Kazakhstan's national adoption of Eurocode 1 — Part 1-4, the code that sets out methods to determine wind actions on structures and associated procedures for design.
Q: What does it cover?
A: It covers calculation of characteristic wind actions (basic wind velocity, terrain and orography effects), external pressure coefficients and zoning for roofs/facades, procedures for global and local wind-loads, and guidance on dynamic/aeroelastic phenomena — together with requirements for national parameters to be set in the National Annex.
Q: Who typically uses it?
A: Structural and wind engineers, bridge designers, façade/cladding specialists, building authorities and software implementers in Kazakhstan and neighbouring markets that adopt SP RK Eurocode documents.
Q: Is it current or superseded?
A: The underlying EN 1991-1-4 was published in 2005 and amended (A1) in 2010; the Kazakhstan national designation is shown as 2005/2011 and national listings indicate the СП РК version is active (effective national application date referenced as 01 July 2015 in catalog metadata). Users should always check the latest national annexes and any subsequent national amendments before design.
Q: Is it part of a series?
A: Yes — it is Part 1‑4 of EN 1991 (Eurocode 1: Actions on structures). Designers normally use it together with other parts of EN 1991 (snow, imposed loads, etc.), the other Eurocodes (EN 1990–1999) as applicable, and the Kazakh National Annex / SP RK implementation documents.
Q: What are the key keywords?
A: Wind actions, wind load calculations, pressure coefficients, terrain categories, National Annex, EN 1991-1-4, SP RK, aeroelastic effects, roof zoning.