Products
Bearings
Structural Bearings
Structural bearings transmit vertical and horizontal loads and permit rotations around any axis between the structure and the foundations. Therefore, they have an extremely wide range of applications.
Design and manufacturing
Our bearings can be designed and manufactured for practically any load and displacement in a working temperature range between -20ºC and 70ºC and have actually been tested for vertical loads up to 100.000 Kn.
MK4 bearings are widely used in structural, marine and civil engineering applications, particularly in bridges. Bearings are available in carbon steel as standard and in stainless steel for applications where corrosion is a potential problem. Each particular project has specific needs that require a tailored bearing for maximum efficiency at minimum maintenance.
MK4 bearings bearings are designed to meet the requirements of the European Standard EN 1337 and have consistently achieved the quality certification of the CE mark. Nevertheless, MK4 can also supply bearings complying with other international standards upon request, such as AASHTO or BS 5400.
Structural Expansion Joints
Structural expansion joints ensure a continuous surface for traffic on structures regardless of the deformations induced by temperature conditions, wind, traffic, or any other effect while maintaining the water tightness of the rest of concrete or steel deck.
A wide array of types and models ensures that every structural work situation anywhere in the World can find a suitable solution within MK4 catalogue.
Design and manufacturing
Our structural joints can be designed and manufactured for any load and displacement required by international standards like ETAG or AASHTO LRFD and have been approved by road authorities all over the World
MK4 joints are widely used in structural, marine and civil engineering applications, mainly in bridges. Joints are available in rubber and carbon steel as standard, and can have components made in aluminum or stainless steel for applications where corrosion is a potential problem. Each particular project has specific needs that require a tailored joint for maximum efficiency at minimum maintenance.
Structural Isolation Products
Structural isolation products protect structures from the effects of big cyclic displacements such as those induced by an earthquake by isolating and damping the movement of the elements above them.
A careful selection of materials and designs ensures that the vertical loads are still transmitted between the structure and the terrain while the device recenters by itself after the cycles cease.
Design and manufacturing
Our isolators are usually designed and manufactured following European (EN15129) standard and the indications from Eurocode 8. The effective stiffness and the efective damping depend on the design displacement (dmax); an iterative procedure is carried out until the difference between the assumed and calculated value of (dmax) are less than 5% of the assumed value. Protoype test of curved surfaces sliding material have been perfomed by acreditted laboratories like Eucentre.
Histeric force and displacement relationship of PDL 6000/430/5
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