Development And Application Of Cyclic Load Test Device

According to the cyclic loading frequency, it can be divided high frequency, medium frequency and low frequency. Many researchers consider that the cyclic low repeated loading of the granary and tanks is equaled to the cyclic repeated loading of the sea waves and cyclical changes in groundwater levels.With the national social and economic development,the national storage building is developing rapadly, storage capacity is becoming increasingly. With the storage technology upgrade, whether the capacity and the loading and unloading process of the repository or the turnover library slows down a lot,so the storage capacity and cycle increase a lot. Many domestic researchers approximate considered the traffic load and the cyclic load of granary is the same. However, it does not change the treatment for the soi with the development of the times, and not paying enough attention to this deformation characteristics.Although this process of the loading and unloading is about 310?Hz, considering such large storage facilities are generally in service for a long time(50 years) and the storage capacity upgrade hugely,so the influence of foundation which is produced by the low-frequency and long-term cyclic loading can not be ignored, the research on the characteristics of this deformation is essential.By learning the soil mechanics and mechanical design knowledge, with the existing conditions, I developed the low-frequency cyclic load test device which both to meet the low-frequency characteristics, but also saves manpower, in order to achieve the purpose for studing the soft soil foundation deformation properties under cyclic loading.The main contents of this article: the test structure and working principle of dynamic triaxial and leveraged oedometer; Computing the cycle of the loading device; Designing the parameters of the loading device; The connection methods of oedometer and loading device.