High Intensity Zone Seismic Strengthening Of Reinforced Concrete Frame Ftructure Plan Study Selection Method

China is one of the most earthquake-hit countries in the world suffer from many townsin the area of high seismic intensity, occurred more strongly destructive earthquakes. Theearly days of the completion of the houses, mostly no seismic measures, a serious shortageof seismic capacity, reliability must be identified and seismic reinforcement to continueusing. Previous damage showed that does not meet the seismic requirements for seismicstrengthening of the building structure, can significantly reduce the extent of earthquakedamage. How high intensity area in accordance with the framework of structuralreinforcement design features, made scientific and rational reinforcement program, selectedthe most cost-effective solutions from multiple seismic retrofit program, has importantpractical and economic significance.In this paper, value theory, a selection method for high-intensity area frame structuralreinforcement program to (high intensity area) Tianshui City, a complex buildingreinforcement works in the background, according to the detection and identification of theconclusions formulated a comprehensive reinforcement of three targeted programs, usePKPM software modeled after the reinforcement structure, comparing before and after themain design parameters of structural reinforcement, reinforcement structure analysis meetsthe " Seismic Design of Buildings "(GB50011-2010) requirements established by the methodof strengthening works three reinforcement program was selected to give optimumreinforcement program, draw the following conclusions:(1) For the high-intensity area seismic reinforcement frame structure design, using asimple method for a certain kind of reinforcement is difficult to meet current seismicrequirements specification;(2)" Increased cross-section-the creation of shear wall "," increasing the cross-section-outsourcing steel" and " steel plate-increased cross-section-added steel support " threecomprehensive strengthening program can significantly change the structure of the naturalperiod can significantly improve the capacity and seismic performance of the original framestructure, applicable to the actual seismic capacity of the existing specification requirementsof the high intensity zone difference between the larger framework of the existing seismicreinforcement;(3)For the creation of high-intensity area frame shear reinforcement, the shear walls setthe position and number of the reinforcing effects of the seismic performance of a largestructure, so need to compare a variety of programs designed in the premise of meeting theseismic performance of under minimize the shear number; (4) Using the method established in this paper, the time frame for the high-intensityarea reinforcement scheme selection, reinforcing the program cost is not one-sidedreinforcement costs, but to reinforce the project ’s total life-cycle cost. Using this methodselected the optimal reinforcement scheme, neither the lowest total cost of the whole lifecycle of the program, nor is it the best performance of certain aspects of the program, but themost cost-effective reinforcement scheme.