本文選題：震損鑒定 + 框架-剪力墻結(jié)構(gòu)��； 參考：《中國地震局工程力學研究所》2014年碩士論文

【摘要】：震后重建期間對受震建筑進行準確的震損鑒定可為安全、經(jīng)濟合理地進行房屋加固提供可靠的基礎(chǔ)信息。目前，結(jié)構(gòu)地震現(xiàn)場損傷鑒定工作還主要依據(jù)專家的視覺判斷，并依據(jù)經(jīng)驗給出判斷結(jié)果。這樣的方法難以避免由于鑒定者對結(jié)構(gòu)震害現(xiàn)象的理解不同而導致的鑒定結(jié)果的偏差，鑒定結(jié)論客觀性不足。本文針對典型的框架-剪力墻結(jié)構(gòu)，以損傷指標為關(guān)鍵指標對結(jié)構(gòu)震后的安全性鑒定進行研究，為鑒定人員進行安全性鑒定提供定量的理論依據(jù)。并分別從部分構(gòu)件損傷指標未知和部分樓層損傷指標未知兩個方面來研究其對結(jié)構(gòu)整體損傷評定的影響。論文主要工作如下： （1）對國內(nèi)外計算鋼筋混凝土各構(gòu)件的損傷指標計算方法進行了歸納和總結(jié)，以一典型的18層框架-剪力墻結(jié)構(gòu)為研究對象，，建立起ABAQUS有限元模型，研究不同類型構(gòu)件損傷指標計算方法。 （2）研究根據(jù)各構(gòu)件的損傷指標計算整體結(jié)構(gòu)的損傷指標的方法，對框架-剪力墻結(jié)構(gòu)算例進行IDA分析求出其對應的整體損傷指標，并與基于層間最大變形的結(jié)構(gòu)損傷評定方法進行比較，確定基于構(gòu)件損傷指標量化整體結(jié)構(gòu)損傷指標的方法的合理性。 （3）研究當無法觀察到結(jié)構(gòu)全部構(gòu)件或全部樓層損傷狀態(tài)的情況下，如何計算結(jié)構(gòu)整體損傷指標的方法，并將其結(jié)果與用全部構(gòu)件求出的整體損傷指標相比較，根據(jù)比較得到的變化率來判斷其合理性，為震后現(xiàn)場結(jié)構(gòu)損傷鑒定提供理論依據(jù)。 本方法可改善鋼筋混凝土結(jié)構(gòu)震后安全性鑒定的客觀性、準確性，同時提高該項工作的效率，具有非常重要的實際意義和很好的應用前景。
[Abstract]:Accurate identification of earthquake damage during post-earthquake reconstruction can provide reliable basic information for building strengthening safely and economically. At present, the work of structural damage identification is mainly based on the visual judgment of the experts, and the result is given according to the experience. This method is difficult to avoid the deviation of identification results caused by the different understanding of earthquake damage phenomenon of structures, and the objectivity of identification conclusions is insufficient. Aiming at the typical frame-shear wall structure, the damage index is taken as the key index to study the safety identification of the structure after the earthquake, which provides a quantitative theoretical basis for the safety appraisal of the appraiser. The influence of the damage index of some members and the damage index of part floor on the whole damage assessment of the structure is studied respectively from two aspects: the damage index of some members is unknown and the damage index of part floor is unknown. The main work of this paper is as follows: (1) the methods for calculating damage index of reinforced concrete members at home and abroad are summarized and summarized. A typical 18-story frame-shear wall structure is taken as the research object. Abaqus finite element model is established to study the methods of calculating damage index of different types of components. (2) the method of calculating damage index of whole structure according to damage index of each component is studied. The whole damage index of frame-shear wall structure is obtained by IDA analysis and compared with the damage assessment method based on the maximum deformation between floors. The rationality of the method of quantifying the damage index of the whole structure based on the damage index of the component. (3) the method of calculating the damage index of the whole structure is studied when the damage state of all the components or all floors of the structure can not be observed. The result is compared with the whole damage index calculated by all the components, and the rationality of the damage index is judged according to the rate of change, which provides a theoretical basis for the field structural damage identification after the earthquake. This method can improve the objectivity and accuracy of post-earthquake safety appraisal of reinforced concrete structures and improve the efficiency of the work. It has very important practical significance and good application prospect.
【學位授予單位】：中國地震局工程力學研究所
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU317

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相關(guān)期刊論文 前2條

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