| With the constant improvement understanding of earthquake, the continuousimprovement of the building seismic code, and the comprehensive influence of externalfactors for many years, at the present stage, whether the seismic performance of theexisting old reinforced concrete frame structure can meet the seismic requirements ornot, it is need to be research. Therefore, based on the old frame structure as the researchobject, analysis and evaluation of the seismic performance of the old buildings, thencomparison and analysis the seismic performance evaluation method.At domestic and abroad, in statistical analysis of reinforced concrete column,frame structure, on the basis of test data, the structure under seismic action are basic infive state (5levels) of performance index quantitative analyses, puts forward evaluationusing horizontal interlayer displacement angle limitation of reinforced concrete framestructure seismic performance of the five level indicators. And respectively by usingresponse spectrum method, simplified method and static elastoplastic analysis method,combining with an instance of the old frame structure, determine structure in differentintensity earthquake under the action of earthquake damage level. And analysis of thethree methods, it is concluded that, in the elastoplastic analysis, the static elastoplasticanalysis method is more accurate and response spectrum method and to simplify predictthe laws of the larger error will occur.Using the response spectrum method, combining with different periodspecification (“the seismic design code for industrial and civil buildings”(TJ11-74) and(TJ11-78),“the code for seismic design of buildings”(GBJ11-89),“the code code forseismic design of buildings”(GB50011-2001) and (GB50011-2010)), then Comparativeanalysis of the corresponding period of the building. Frame shear wall structure of the80s than modern new buildings, the weak layer are upward and lash effect moreapparent. |
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