| Base sliding isolation is put forward and the application in practice of isolation ways, its principle is in the basement to set the level isolation layer, make the upper structure and basal decoupling, greatly reduce the seismic response of the upper, ensure the safety of the building. Because of its security, low cost and practical, is recognized by the engineering. At present, our country rural area houses has become the weakest link, in order to reduce the state and society losses, the rural areas application friction sliding isolation system is imminent. Based on this reason, this paper based on some research of the elder,work on friction-sliding system in rural low-rise building in the popularization and application and make the following research:First, reviewed the research and application of the present situation of base sliding isolation, proposed the facing problems at the moment, and determined the main work of this paper.Secondly, used the finite element software SAP2000to analyzed three layers of isolation framework and no isolated framework, from the acceleration, displacement response and interlayer shear forces comparative, the results show that:the isolation framework of seismic response far less than no isolated framework, greatly improved the construction safety.On this basis, researched seven kinds of sliding bearings of isolation properties. For isolation structure overturning problem under the great earthquake, this paper proposed an resistance to the overturning of structural measures design, analyzed the work principle、reinforced stress、ascension of the whole isolation and so on.Finally, faced the weak housing shockproof capability of villages, gave some countermeasures to improve the ability of earthquake resistance village houses, and suggested the friction isolation scheme for the building of villages in application, put forward the construction and completion need notices.Figure57table3reference64... |
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