| In order to help Lhasa city government implement residential seismic safety project deployed by the National Earthquake Hazards Reduction working group meeting in 2010, China Seismology Bureau coordinated by China Development Research Foundation assigns IEM to undertake the seismic strengthening experiments of housing project for farming herdsmen in Tibet Autonomous Region. As the China Seismological Bureau-funded construction projects built for Tibet, the goal is to help Lhasa evaluate the seismic capacity of existing and planning traditional masonry bungalows, not only to improve the seismic performance and withstand a strong earthquake of masonry bungalows, but also to reduce earthquake losses. But more importantly to protect the safety of our compatriots in Tibet.Structural columns and ring beam is the main measures of multi-storey masonry building, China's Code for Seismic Design of Buildings GB50011-2001 on structural column and ring beam settings are clearly defined, while the single-storey housing does not require setting. Tibet is a earthquake-prone area, Damxung county is one of the 10 domains at earthquake intensity 9 in mainland, this place is located in Bangor-Damxung fault interchange, seismic fortification intensity is not Lower than 9 and design basic acceleration of ground motion is not less than 0.4g locally in seismic design of constructional engineering. It is difficult for the single-storey dwellings in the local level to determine the maximum security, this earthquake-proof houses for Tibet.This paper uses computer software to study and simulate, the main research contents include the followings:Firstly, this article based on the the seismic strengthening experiments of housing project for farming herdsmen in Tibet Autonomous Region, by shake-table testing, and analyses test results of two models, and, based on the similarity relationship between the prototype structure and its model, gives the assessment of seismic capacity and seismic damage for the structure. This paper extracts seismic knowledge and establishes the seismic fuzzy sets from a large amount of test data and graphics, so as to provide estimate basis how to adopt structure type and seismic measures to withstand a strong earthquake for housing project for farming herdsmen in high quake intensity of Tibet.Secondly, fundamental frequency for models is solved by means of White noise and formula computing, and the prediction according to seismic assessment of buildings housing the prototype Seismic capacity, and predict the damage in order to enhance the prototype housing forecast model 2-2 results, for example, found that the process of shaking table model test and the results are consistent with three seismic fortification level goals from Code for Seismic Design of Buildings GB50011-2001[1], That is, when the place is subjected to frequently earthquake influence which intensity is lower than the local fortification objective of buildings will not be damaged or only slightly damaged, with continued service without repair; When the place is subjected to local fortification intensity earthquake influence, the building will be damaged, with continued service after ordinary repair or without repair; When the place is subjected to rarely earthquake influence which intensity is expected to higher than the local fortification intensity, the buildings will not collapse nor suffer damage that would endanger human lives.Finally, with the help of ABAQUS, mode and dynamic analysis are as mush as possible to simulate test models, and to assess the seismic capacity of one-storey dwellings. Futher, the experimental model is whether the middle of the wall or not, assessed its seismic capacity comparatively.
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