What is BS EN 16727-2-2 - Mechanical performance of noise barriers caused by passing trains about?
BS EN 16727-2-2 defines the loading, the relevant load model positions, and the internal forces acting on noise barriers, due to the air pressure wave set out in BS EN 1991-2:2003.
The calculation method described in BS EN 16727-2-2 has been developed for noise barriers having a post-and-panel structure with piled foundations. BS EN 16727-2-2 can also be used where cladding is attached to a rigid structure. For structures with piled foundations, an empirical formula for the determination of the natural frequency is given in Annex A.
Note1: The vertical and horizontal shapes of the air pressure wave and the dynamic effects have been taken into account.
Note2: BS EN 16727-2-2 contains an example of the application of the calculation method for the determination of internal forces and moments acting on a mid-post. The design of noise barriers (e.g., to fatigue resistance) of part of BS EN 16727-2-2.
Who is BS EN 16727-2-2 - Mechanical performance of noise barriers caused by passing trains for?
BS EN 16727-2-2 on mechanical performance under dynamic loadings caused by passing trains - Calculation method is useful for:
- Railway infrastructure regulatory bodies
- Noise barriers and related devices manufacturers
- Railway engineer
- Operators
- Designers
- Mechanical engineer
Why should you use BS EN 16727-2-2 - Mechanical performance of noise barriers caused by passing trains?
Passing trains generate pressure variations in the shape of air pressure waves which impact on noise barriers installed alongside the track. In circumstances where there is a lack of design information or doubt about the parameters required to undertake tests or calculation for noise barriers having a post-and-panel structure with piled foundations, verification of a design, additional surveys, and geotechnical investigations are essential so as to obtain the required values in order to ensure the safety and serviceability of the complete noise barrier.
BS EN 16727-2-2 presents a calculation method to assess the capacity of noise barriers having a post-and-panel structure with piled foundations to resist this pressure variation including an allowance for dynamic response of the structure.
BS EN 16727-2-2 will ensure that noise barriers withstand the impact without any part of them becoming detached or displaced in a way that creates a safety hazard for passing trains or people.