2022年1月2日 · Expansion Joint Systems USL Ekspan T-Mat DB/ST are made in accordance with the EN ISO 9001 2008. The T-Mat expansion joint transition is available in four different types. The T-Mat 30, 80 and 130 models have a single joint arrangement. The T-Mat 160 and 260 models have a double joint arrangement. EKSPAN …
BOA Expansion Joints
We offer a wide range of expansion joints, suitable for numerous specific applications. The BOA expansion joints portfolio basically consists of three main series: The heart of all expansion joints is the metal bellows. Thanks to modern design and manufacturing facilities, all BOA expansion joints offer the following advantages:
Expansion joints are the dynami cally heaviest loaded members of a brid-ge structure. They are directly expo-sed to traffic and thus subjected to forces and aggressions whose ma-gnitudes or combinations are rarely found in structural engineering.
Modular expansion joint assemblies are subjected to millions of high dynamic stress cycles due to passing vehicle loads. Recognizing the significance of these dynamic loads on the long-term performance of expansion joint systems, D.S. Brown became the first North American company to introduce fatigue-resistant design principles
BOA universal expansion joints are used wherever large movements are to be compensated for in both axial and lateral direction. Their struc-ture consists of two multi-ply, corrosion resistant bellows, which are connected to an intermediate tube. They are either available with welded-on flanges or with weld ends.
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Expansion Joints Variations in temperature and traffic load may change the length of larger bridges in the meter range. This is why bridge ends are equipped with a so-called “roadway expansion joint” that can expand and contract.
Our expansion joints are designed to last as long as the system. They are maintenance-free. Sealing problems and large space requirements of other expansion devices are eliminated with bellows expansion joints. All units meet the Standards of the Expansion Joint Manufacturers Association (EJMA) and military specification MIL-E-17813.
Axial expansion joints are suited to compen-sate for axial movements in straight pipeline sections. Additionally, axial expansion joints are used: – to dampen mechanical vibrations and reduce sound conducted through solids on pumps and compressors – as flexible seals at the end of jacketed pipes in district heating systems
There are a variety of techniques for preparing expansion joints in epoxy grout. Different joint designs are appropriate for different types of installations. Two basic types of joints are discussed below. Standard Single Seal Expansion Joint Grooves must be placed in the grout for this design. It is preferable to create the groove with the ...
Steelflex Modular Expansion Joint Systems
Steelflex Modular Expansion Joint Systems: Highly engineered system comprised of dynamic load bearing center beams welded to multiple support bars and cast-in-place into expansion joint. Steel center and edge beams with mechanically locked elastomeric sealing elements. Robust rubber support bar springs and bearings.
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