To assure seismic isolation performance against design and beyond basis earthquakes in the nuclear facility components, lead inserted small-sized laminated rubber bearings (LRB), which has a 10 kN vertical load, have been designed quasi-statically tested to validate their mechanical properties previous studies. Following this study, shaking tests of these full-scale LRBs are performed discussed...

In this paper, new formulations to predict the change in mechanical properties, namely, post-yield stiffness and characteristic strength of lead rubber bearings (LRBs) at low ambient temperatures, are proposed based on test results. Proposed consider not only effect temperature but also exposure time temperature. Accordingly, a full-scale LRB was tested dynamically after being conditioned tempe...

in this article the transient heat transfer in rubber parts has been studied. this study is usefull for estimation of the minimum curing time of the rubber parts and thereby to ensure the quality of the rubber. also is the temperature distribution during the rubber curing is well know, then the curing time could accurately be estimated, which will lead to a better curing process. in this regard...

Soft storey buildings are characterized by having a storey which has a lot of open spaces. This soft storey creates a major weak point in an earthquake. Since soft stories are classically associated with retail spaces and parking garages, they are often on the lower stories of a building, which means that when they collapse, they can take the whole building down with them, causing serious struc...