BS EN 14843:2007 PDF Download

The BS EN 14843:2007 standard focuses on precast concrete products specifically related to stairs. It provides detailed specifications for materials, production methods, properties, and requirements for precast concrete monolithic stairs and precast concrete elements used in reinforced and/or prestressed concrete stairs. The standard is applicable to both indoor and outdoor structural stairs.

It covers various aspects such as terminology, performance criteria, verification methods, tolerances, physical properties, special test methods, and transportation, erection, and connection considerations. However, it does not cover geometrical properties related to the functionality of stairs, as these may be regulated by national rules or local practices.

The standard categorizes precast concrete stairs into two main families: monolithic stairs consisting of precast concrete components like flights and landings, with the possibility of including vertical supporting elements, and stairs constructed from individual steps that are assembled on-site using carriages or a central column. The shape of the stairs can be straight or winding, and they may include parapets and landings. The connection methods can range from simple bearings to bolted connections or the use of reinforcement and in situ concrete. The precast elements' surfaces can either be exposed or covered by finishes.