Research On The Safety Identification After The Earthquake Of The Kindergarden Of Yunnan Ludian Longtoushan Town Based On The Damage Index

How to evaluate the extent of damage suffered by the structure under earthquake, has been a key issue in the field of earthquake engineering research.Rapid, timely and accurate assessment of earthquake damaged by the earthquake do building during the earthquake emergency is one of the main basis for the identification of housing safety,and is an effective way to make proper arrangements for victims,and also can avoid a lot of residential earthquake victims shed potential safety problems,and it can prevent unsafe to live freely under strong aftershocks caused by the construction of secondary disasters, and it strongly protects the lives and property of people in disaster areas, and it reduces casualties and economic losses; and it can restore normal social order and safeguard social stability plays an important role,.It’s a more accurate determination of human, material and financial resources into the emergency period, provide the basis to avoid unnecessary waste. Affected by the earthquake to earthquake damaged buildings accurately identified for security, economic and reasonable manner to provide a reliable basis for the Reinforcement of information during the post-earthquake reconstruction.In summary, because of the detailed processes and indicators to follow, there is a clear detailed illustrations for reference, so the structural safety assessment of seismic site personnel do not have to have a very rich experience in safety evaluation can be given relatively objective, accurate assessment of the structure of the conclusions, after the earthquake safety assessment of reinforced concrete structures based on damage indicators may improve after the earthquake safety assessment of reinforced concrete structures of objectivity and efficiency after the earthquake scene structural safety assessment work for the people of earthquake provide more scientific, accurate and efficient post-earthquake structural safety assessment services.This paper is to study the safety assessment methods of the reinforced concrete frame structure after the earthquake by OpenSEES, containing the following main research contents:(1) For the current construction of earthquake damaged by the earthquake are mostly visual assessment of earthquake damage, judging experience, the lack of theoretical basis of the problem, by nine reinforced concrete frame column static hysteresis test to identify earthquake damaged reinforced concrete frame columns phenomenon correspondence between the earthquake damaged the state; and examine a variety of common factors (such as axial compression ratio, stirrup ratio, longitudinal reinforcement ratio, shear span ratio, etc.) on the framework of the phenomenon of post earthquake damage, injury status; for the subsequent establishment of the earthquake Legend set loss, provide the basis for material identification techniques for security training and promotion.(2) To test the above reinforced concrete columns, we select correction Park-Ang damage index finger injury calculated test and simulation platforms to give OpenSEES made frame columns, modeling to simulate the load point displacement resulting level-horizontal force curves were compared with the test. Based on the classification of the proposed state of shock damage, degradation of the relationship between the bearing capacity and damage indicators and provide technical support for building safety appraisal by the earthquake after earthquake emergency period.(3)Based on the OpenSEES platform is proposed based on the earthquake damaged grading standards and methods of analysis of the state of damage concrete frame structure by earthquake damage leading Ludian Town Centre Nursery frame structure (the actual project and actual damages) analysis established phenomenon of earthquake damaged component-component seismic damage extent and distribution the relationship between the structure of the overall extent of earthquake damage, and so gives a basis for discrimination based on seismic damage grade of reinforced concrete structures and security framework for the identification of the desired behavior.