Rapportage inventarisatie enkelvoudige voegen - Curnet

Bijlage E Rapportage bevindingen in detail (Engelstalig)
Benchmark Single seal joints
Rijkswaterstaat as a government organisation in The Netherlands is the owner of the motorways, canals,
rivers and storm barriers. A survey of maintenance costs showed that after resurfacing projects, the
maintenance and replacement of single seal joints is the major origin of expenses for motorways. Therefore
Rijkswaterstaat has initiated an internal quality improvement project for single seal joints which consists of
the following fases:
1. Survey and analysis of problems
2. Discussion with neighbouring countries about their experiences
3. Proposals for better design, fabrication, installation etc. laid down in
specifications
4. Proposals for maintenance
Phase 2 consists of a benchmark study with the Ministry of transport in Flanders and Wallony and the
Landesbetrieb Strassenbau Nordrhein-Westfalen in Germany. For this benchmark a questionnaire was
drawn up with the following subjects:
1. Types of single seal joints used and experiences
2. Design
3. Manufacturing and Installation
4. Inspection and Maintenance
5. Replacement
Experience Netherlands
The Dutch experiences were compiled using:
• Reference documents expansion joints, edition 3.0
• Memo ‘product enkelvoudige voegovergangen’ 11 July 2001
• Requirements for expansion joints
• Project startup May 13th 2003
1. Types of single seal joints used and experiences
See table 1.
2. Design
Are traffic loads and movements from standards and measurements used for design calculations and
verification tests? When tests are carried out, which boundary conditions are used and do they include
the most adverse design situations? What design life is aimed at? Are the structures tested and
evaluated with respect to the brittleness and the risk of crack propagation
Traffic intensities and traffic loads are determined by extensive measurements. These have been
assessed and compared with Eurocode figures and elaborated into static design loads and axle spectrum
for fatigue loads. (Requirements for expansion joints). These loads are used for design computations of
multiple seal joints. Results of tests performed by manufacturers are used. Some parts of single seal
joints are similar to multiple seal joints. Here the same computations and tests apply. Rijkswaterstaat
does not perform tests self, neither contract out such tests.
For single seal joints standardized details specified by drawings and contract specifications are used. In
design and construct contracts these are used as reference for products proposed by contractors. In
53 Rapportage inventarisatie enkelvoudige voegen