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With the sustained and rapid development of China's economy, the mineable reserves and social energy demand have become increasingly intensified, forcing people to gradually shift to the exploitation of resources under the building. The same time, the increasingly serious shortage of urban development and land resources, the construction of high-rise, high-rise building more and more towards deep foundation pit excavation, the rapid development of urban underground transport, development and utilization of underground space has become a domestic cities sustainable the only way of development. Underground mining and underground space development, to a certain extent on the surrounding environment, mainly for the deformation of the surface, uneven settlement is one of the main cause of civil engineering, construction accidents, damage to the upper part of the building. The city building is a concrete structure, and uneven settlement less experimental observation of the performance of the concrete structure, and less research literature on the uneven settlement under the influence of concrete structure seismic performance, system, comprehensive study of differential settlement of concrete structures, the weak link in the master the uneven settlement of the concrete structure due to internal forces, displacement variation and structure uneven settlement conditions, damage evolution process is very important urgency and forward-looking , have important research and engineering significance. In this paper, from the uneven settlement of the dangers of the building, the SAP2000 finite element analysis software on the basis of existing research, the concrete frame structure in uneven settlement and subsidence and seismic coupling analysis, the main contents are as follows: (1) introduces the research background and significance, underground mining, urban underground space development, the nature of the foundation three aspects of the current settlement and its impact on all aspects of the superstructure Research. (2) describes the uneven settlement mechanism of surface buildings, focusing on the characteristics of injuries of the upper structure of the building, as well as a variety of structural seismic response analysis methods and theories; (3) describes the use of SAP2000 structural finite element analysis software the modeling process, the feasibility of uneven settlement load in the model according to the column foot displacement load applied research, with detailed descriptions of material nonlinearity in the model implementation and section bearing capacity calculation methods. (4) by SAP2000 analysis of internal force distribution of the structural elements in reinforced concrete frame structure in the settlement range expansion, settlement process variation. (5) to explore the settlement and the coupling of the load and seismic loads, SAP2000 is of reinforced concrete frame structure, \the variation of the internal force, displacement, acceleration, shear and other performance parameters. (6) the settlement loads and seismic coupling structure of the plastic hinge distribution of the development process, cumulative structural damage evolution law come to settlement under the influence of the weak parts of the structure as well as the weak link, and pointed out that the specification on the applicability settlement deformation control parameters.
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