![]() ![]() SLIDING BEARINGS A variety of isolation devices including elastomeric bearings, frictional/sliding bearings and roller bearings have been developed and employed for aseismic design of buildings. CHOICE OF BASE ISOLATOR: RUBBER BEARINGS VS. With the existence of a local factory, Prototype Test & Factory Production Control Test is carried out domestically. Donato Cancellara, Fabio De Angelis, Mario Pasquino, (2013), ' A novel seismic base isolation system consisting of a lead rubber bearing in series with a friction slider ', J. used base isolation method of Lead Rubber Bearings are used in the analysis and design. Purpose and Importance on the Research A lead-rubber bearing (LRB) is commonly used as a seismic isolator for the seismic protection of bridges. Magdatama also has an In-house Laboratory, in the form of a Rubber Laboratory as R&D and to maintain consistency of quality and quality of production. Determination of Design Parameters of Lead-Rubber Bearings by Characterization Tests II. Magdatama has advantages for its LRB products, raw material components are sourced from local products, besides that the rubber used is 100% Indonesian Natural Rubber with rubber quality that meets the Indonesian Rubber Standard (SIR). It is very soft laterally but very stiff vertically. The rubber in the isolator acts as a spring. All isolators have an energy dissipating lead core. This lead layer aids in boosting the bearing dampening. With its components, namely the Lead Core, LRB can dissipate earthquake energy. Base Isolation Lead Rubber Bearings (LRB) consists of a laminated rubber and steel bearing with steel flange plates for mounting to the structure. Similar to rubber bearing, lead rubber bearing include a layer of lead encased within the rubber. LRB also provides lateral flexibility that can increase the period of the structure and can also produce “Restoring Force” or what is called Re-centering capability. The isolating pad is formed by alternate layers of rubber and steel vulcanized together to form a laminated rubber bearing. Seismic Rubber Bearing and Isolators basis of type(Natural and Synthetic Rubber Bearing (NRB), Elastomeric bearing device (Isolator), Lead Rubber Bearing. The main function of the LRB is to carry the load vertically. A rubber vulcanizing layer with steel plate will provide high vertical stiffness and low horizontal stiffness so it is able to withstand vertical forces and provide large horizontal movements. Lead Rubber Bearing (LRB) is one of a type of Seismic Isolator consisting of rubber layer, steel plate, and lead core. ![]()
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