Vibration isolation performance is defined by:
Each compliant mount must be permanently marked with:
The Plate Bearing Test is the gold standard for determining the settlement characteristics and ultimate bearing capacity of the ground. It is particularly vital for calculating the capacity of crane outriggers, temporary works pads, and shallow foundations. bs 1337 part 9
A mass spectrometer requiring <0.03 g vibration levels. Solution: High-deflection (12 mm) rubber mounts using low-stiffness natural rubber (35 IRHD). Floor vibration frequency 18 Hz; mounted natural frequency 5 Hz – effectively isolated.
Performed once per product family:
Crucial for designing temporary crane mats, piling platforms, or permanent road foundations. Other Included Tests In-situ Density:
Measures to prevent premature wear and ensure the bearing reaches its intended working life. 🛠️ Key Protection Measures Other Included Tests In-situ Density: Measures to prevent
| Feature | BS 1337 Part 9 | BS EN 1337 (general elastomeric) | |--------|----------------|----------------------------------| | Primary function | Vibration isolation | Load-bearing (bridges/buildings) | | Shear deformation | Limited | Significant (up to 50% of height) | | Dynamic testing | Required | Not typically required | | Damping spec | Explicit loss factor | No provision | | Mount height | Low (10–50 mm) | Thick (30–200 mm) |
While no longer actively maintained, remains an essential reference for vibration isolation in buildings and civil engineering applications across the UK and Commonwealth. Its test methods, material requirements, and design rules are practical, proven, and referenced in thousands of existing specifications. exploring its scope
Specifies the use of paint or metallic coatings to prevent rust on steel components.
This article provides a deep dive into BS 1377 Part 9, exploring its scope, the specific tests it governs, why it matters for modern construction projects, and how it interfaces with European standards.