Zaoqiang Dacheng Rubber Co.,Ltd. products

Dacheng elastomeric laminated bearing pads with simple reinforcement are made up of multiple elastomer layers separated by reinforcing steel plates, sulfurized and moulded together can be manufactured in a rectangular or circular shape to meet individual engineering requirements. G eneral laminated bearings suits to bridges with span less than 30m and small displacement.Different flat shape suits to different bridge span structures : orthogonal bridges adopt rectangular bearing; curvilinear bridges, oblique crossing bridges and cylindrical pier bridges adopt circular bearing.

Laminated elastomeric bearings with PTFE sheet bonded on the elastomer:a virgin PTFE layer is bonded to the elastomer to reduce the friction coefficient with the stainless steel welded to the top steel plate. Tetrafluoro plate type rubber bearing suits to bridges with large span,several spans in continuous, with simply supported beam and continuous plates structure, and large displacement.It can still used as the sliding block in purchasing of continuours beam and cross sliding of T-shape beam. The application of rectangular and circular tetrafluoro plate type rubber bearings are the same with rectangular and circular general plate type rubber bearing, separately.  

Plain Elastomeric Bearing Pads can be used in many construction and civil engineering applications to support concrete and steel structures, and where a simple, low-cost rubber separation strip is capable of carrying compressive loads, while at the same time providing translational movement and rotational capacity. Plain pad bearings have a large and varied range of possible applications though these bearings are more typically used in prefabricated structures. Materials : EPDM, natural rubber or neoprene. Design examples that illustrate some of the concepts discussed are included in this section.Summarizes the major design requirements used in these examples.

Lead Rubber Bearing is an isolation system which combines laminated layers rubber bearing with lead plugs; the former bears the load and isolates vibration, and the latter absorbs energy as a damper. Size Ranges : Lead Rubber Bearing from 200mm to 1500mm in diameter with capacities of up to 4,000 tons are manufactured. Custom dimensions are available for special applications. Application : Lead rubber bearing find wide applications in structures, such as Civil constructions, Hospitals, The museum, Schools etc.

Dacheng bridge elastomeric expansion joints are structural components designed to provide smooth passage over the gap between adjacent sides of a deck joint, while also permitting relative translation and/or rotation of the two sides of a bridge deck (deck movement joint).

Modular expansion joint are the most frequently employed types of expansion joints in road bridges. By special steel welding elements arranged side by side and equally controlled they are supported on special load carrying and control systems, intermediate sealing elements with form- and force-fit clamping  as well as marked by a continuous anchorage in the structure with permanent connection to seal and coating.

Finger type expansion joint are designed to handle displacements of up to 250 mm between the bridge decks they are fastened to.Finger-type joints comprise two separate elements (male and female) with a steel structure entirely bonded with vulcanised rubber,which are then secured to the structure with suitable anchor bolts.Surface water can drain away easily due to special elastic membranes positioned under the joint’s finger-type structure.

Rubber water-stop and water stop: rubber is the natural rubber and various kinds of synthetic rubber as the main raw material, adding various additives and fillers, the plastication, mixing, pressing forming.The water stop material has good elasticity, wear resistance, aging resistance and tensile properties, adapt to the deformation ability strong, waterproof properties is good, the temperature range of application for - 45 ? - + 60?. When the temperature more than 70 ?, and rubber water-stop by strong oxidation or the oil and organic solvent erosion, shall not use rubber water-stop.

Hydrophilic water stop is made from water-swelling rubber water line to the basis of the ordinary rubber water-stop. The product will swell when contacted with the structures. As a result, the tightness is fastened between them water stop and water-proof performance is improved and the problem of circle seepage which puzzles people in a long time is solved. This series of products have been used widely in some key projects and have gotten excellent results.

Steel side water stop:The sections divided into high-strength area, water-proof area and the installation area can take unequal thickness structures according to the unique function of every area. So each part of the sections can get uniform and reasonable force. The outer wall surface of the stretch shrinkage is plane, the construction of the formwork folder system is not easy dislocation; Steel plate connected to additional mounting holes and reinforced rigid fixation is not easy displacement. Good adhesion between galvanized steel and concrete makes the waterproof performance better.