ÖNORM EN 1993-4-1|Silos

EN 1993-4-1 provides principles and application rules for the structural design of steel silos of circular or rectangular plan-form, being free standing or supported. This part is concerned only with the requirements for resistance and stability of steel silos. For other requirements (such as operational safety, functional performance, fabrication and erection, quality control, details like man-holes, flanges, filling devices, outlet gates and feeders etc.), see the relevant standards.

Provisions relating to special requirements of seismic design are provided in EN 1998-4, which complements or adapts the provisions of EN 1993-4-1 specifically for this purpose.

The design of supporting structures for the silo are dealt with in EN 1993-1-1. The supporting structure is deemed to consist of all structural elements beneath the bottom flange of the lowest ring of the silo.

Foundations in reinforced concrete for steel silos are dealt with in series EN 1992 and EN 1997.

Numerical values of the specific actions on steel silos to be taken into account in the design are given in EN 1991-4.

This EN 1993-4-1 does not cover:

  • resistance to fire;
  • silos with internal subdivisions and internal structures;
  • silos with capacity less than 10 tonnes;
  • cases where special measures are necessary to limit the consequences of accidents.

The circular planform silos covered by this Standard are restricted to axisymmetric structures, but the actions on them may be unsymmetrical, and their supports may induce forces in the silo that are not axisymmetrical.

Current Document

ÖNORM EN 1993-4-1
EUROCODE 3: Design of steel structures - Part 4-1: Silos

Current status:

ÖNORM

Publication

2010-06-01

Further Information & Order:

EN 1993-4-1

National Annex (German only)

ÖNORM B 1993-4-1
EUROCODE 3: Design of steel structures - Part 4-1: Silos - National specifications concerning ÖNORM EN 1993-4-1

Current status:

ÖNORM

Publication:

2008-12-01

National Specifications:

Overview

Further Information & Order:

B 1993-4-1