本标准规定了预制混凝土整体楼梯的材料，生产，性能，要求和测试方法以及用于制造加固和/或预应力混凝土楼梯的预制混凝土构件（例如各个步骤）。 本标准适用于室内或室外结构楼梯。 本标准包括预制混凝土楼梯和相关联的单片设计的着陆或由梁或柱支撑的单个步骤构建。支撑元件可以包括原位混凝土。 本标准涵盖术语，性能标准，验证方法，公差，相关物理特性，特殊测试方法以及运输，安装和连接的具体方面。 与楼梯功能有关的几何属性不在本标准的范围内，可以在国家规定或当地惯例中找到。 预制混凝土楼梯分为两大类: ï,¾由预制混凝土构件构成的整体式楼梯，由飞行，着陆或其组合组成。它们可以包括垂直支撑元件; 由独立的步骤构建的楼梯，无论是否承载，在现场与例如车厢或中央柱组装在一起。 他们的形状

This standard gives specifications for materials, production, properties, requirements and methods of testing for precast concrete monolithic stairs, and for precast concrete elements (e.g. individual steps) used to make reinforced and/or prestressed concrete stairs. This standard is applicable to structural stairs for indoor or outdoor use. This standard covers precast concrete stairs and associated landings of monolithic design or constructed from individual steps supported by beams or columns. Supporting elements may include in situ concrete. This standard covers terminology, performance criteria, verification methods, tolerances, relevant physical properties, special test methods and specific aspects of transport, erection and connection. Geometrical properties related to functionality of stairs are not covered by this standard and can be found in National regulations or local practice. Precast concrete stairs are classified into two main product families :  monolithic stairs constructed from precast concrete components consisting of flights, landings or a combination of these. They may include vertical supporting elements;  stairs constructed from individual steps, whether load bearing or not, assembled on site with, for example, carriages or a central column. Their shape may be straight or winding. Stairs may incorporate parapets (on one or both sides) and landings. Stairs may have simple bearings (e.g. on corbels, walls or beams), bolted connections or they may be connected with reinforcement and in situ concrete. The surfaces of the precast elements may be exposed or covered by finishes.