What is PD CEN/TR 15728 - Inserts for lifting and handling of precast concrete elements about?
PD CEN/TR 15728 is an international standard on inserts and insert systems for rapid and safe lifting and handling operations of precast concrete components that are crucial for their fast and economic transport and erection.
PD CEN/TR 15728 provides recommendations for the choice and use of cast-in steel lifting inserts, hereafter called 'inserts' for the handling of precast concrete elements.
They are intended for use only during transient situations for lifting and handling, and not for the service life of the structure.
The choice of the insert is made according to the lifting capacity of their part embedded in the concrete or may be limited by the capacity of the insert itself and the corresponding key declared by the insert manufacturer.
PD CEN/TR 15728 applies only to precast concrete elements made of normal weight concrete and manufactured in a factory environment and under a factory production control (FPC) system.
PD CEN/TR 15728 is prepared based on the fact that the anchorage in the concrete of parts of the lifting assembly is governed by the Construction Products Regulation. Lifting accessories independently placed on the market are governed by the Machinery Directive.
Note 1: PD CEN/TR 15728 covers commonly used applications (walls/beams/columns and solid slabs and pipes). The range of these applications is further limited to prevent other types of failure than concrete breakout failure (cone failure), bond failure, failure of reinforcement or failure in the steel insert.
Note 2: PD CEN/TR 15728 does not cover:
- The design of the lifting inserts independently placed on the market
- Lifting inserts for permanent and repeated use.
Who is PD CEN/TR 15728 - Inserts for lifting and handling of precast concrete elements for?
PD CEN/TR 15728 on precast concrete elements is useful for:
- Builders
- Architects
- Precast product designers
- Mechanical and civil engineers
Why should you use PD CEN/TR 15728 - Inserts for lifting and handling of precast concrete elements?
The lifting insert is cast in the concrete component and used only for the transport and assembling process of the precast element on site.
PD CEN/TR 15728 provides the basis for designs of inserts for lifting and handling as well as required verifications and design principles.
PD CEN/TR 15728 specifies the effect of lifting procedures on load directions and actions on inserts from adhesion and form friction.
The design of lifting inserts and anchorage in concrete by calculation can be determined by PD CEN/TR 15728.
Design of lifting inserts and anchorage in concrete by testing of specimen and load and support conditions are specified in PD CEN/TR 15728.
PD CEN/TR 15728 navigates you through certain tests to verify prior knowledge about the resistance properties of an insert to be used in a certain application.
Assessment of test results and verification of design model is set out in PD CEN/TR 15728 along with the lifting and handling instructions available at the precast plant and on-site for each type of precast element.
Furthermore, PD CEN/TR 15728 assists you in developing a foundation for the consistent and safe use and design of lifting and handling inserts that are subject to a quality assurance process in building commercial and industrial structures.
As a result, precast concrete is widely used in the construction industry due to its versatility in shape, texture, colour and structural stability, durability and integrity.