本文關(guān)鍵詞：抗震加固后砌體結(jié)構(gòu)的抗震性能分析　出處：《中國石油大學(xué)（華東）》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 抗震加固 砌體結(jié)構(gòu) 時(shí)程分析 抗震性能

【摘要】：近年來，隨著砌體結(jié)構(gòu)使用時(shí)間的增長和抗震設(shè)防烈度的提高，我國一部分既有砌體結(jié)構(gòu)強(qiáng)度不夠或者不滿足現(xiàn)有抗震規(guī)范的要求，需進(jìn)行抗震加固工作。唐山地震后，人們意識(shí)到了結(jié)構(gòu)抗震的重要性，漸漸開始在全國范圍內(nèi)進(jìn)行建筑物的抗震鑒定和加固。汶川地震后，很多學(xué)者對(duì)汶川地震中建筑結(jié)構(gòu)的震害進(jìn)行調(diào)查統(tǒng)計(jì)分析，砌體的破壞率是最高的，中小學(xué)砌體房屋倒塌導(dǎo)致眾多師生喪生，引起了人們對(duì)于中小學(xué)建筑的高度重視。國務(wù)院近年來，統(tǒng)一部署實(shí)施了“百萬校舍安全工程”，旨在提高中小學(xué)建筑的安全性，保證廣大師生的生命財(cái)產(chǎn)安全。 經(jīng)過多年的大量的試驗(yàn)研究，砌體結(jié)構(gòu)取得了一定的成果。 本人在前人研究的基礎(chǔ)上，通過有限元分析軟件ASNYS分析多遇和罕遇地震作用下結(jié)構(gòu)加固前后的振型和自振頻率，以及最大位移及最大層間位移角，研究中小學(xué)砌體結(jié)構(gòu)的地震反應(yīng)和規(guī)律，，主要內(nèi)容如下： 1闡述了既有建筑的特點(diǎn)、既有建筑鑒定加固的重要性和發(fā)展歷程以及課題的背景和意義。 2分述了砌體結(jié)構(gòu)的力學(xué)特性，羅列了砌體結(jié)構(gòu)的震害及影響因素。 3介紹了目前常用的砌體結(jié)構(gòu)的加固方法以及地震分析的反應(yīng)譜分析和時(shí)程分析的理論及方法。 4對(duì)工程實(shí)際進(jìn)行有限元分析，假定砌體結(jié)構(gòu)無柱無圈梁，采用圈梁+構(gòu)造柱的整體加固方法，分析比較加固前后砌體抗震性能變化。 結(jié)果表明圈梁+構(gòu)造柱的加固方法對(duì)結(jié)構(gòu)加固起到了較好的作用，值得廣泛推廣。
[Abstract]:In recent years, with the increase of masonry structure usage time and the increase of seismic fortification intensity, some of the masonry structures in China are not strong enough or do not meet the requirements of the existing seismic code. After the Tangshan earthquake, people realized the importance of earthquake resistance of structures, and gradually began to carry out seismic identification and reinforcement of buildings throughout the country. After the Wenchuan earthquake. Many scholars investigate and analyze the earthquake damage of building structure in Wenchuan earthquake. The damage rate of masonry is the highest. The collapse of masonry buildings in primary and secondary schools results in the death of many teachers and students. In recent years, the State Council has unified the implementation of the "million school building safety project", aimed at improving the safety of primary and secondary school buildings. To ensure the safety of life and property of teachers and students. After many years of experimental research, masonry structure has achieved certain results. On the basis of previous studies, the finite element analysis software ASNYS is used to analyze the vibration pattern and natural vibration frequency of the structure before and after reinforcement under rare and rare earthquakes, as well as the maximum displacement and the maximum displacement angle between layers. The seismic response and regularity of masonry structures in primary and secondary schools are studied. The main contents are as follows: The main contents are as follows: 1. The characteristics of the existing buildings, the importance and development course of the existing building appraisal and reinforcement, and the background and significance of the subject are expounded. 2. The mechanical properties of masonry structure are described, and the earthquake damage and influencing factors of masonry structure are listed. 3. The strengthening method of masonry structure, the theory and method of response spectrum analysis and time history analysis of seismic analysis are introduced. 4 the finite element analysis is carried out on the engineering practice, assuming that the masonry structure has no column and no ring beam, the seismic behavior of masonry before and after reinforcement is analyzed and compared by using the integral reinforcement method of ring beam structure column. The results show that the reinforcement method of ring beam and column plays a good role in strengthening the structure, and it is worth popularizing widely.
【學(xué)位授予單位】：中國石油大學(xué)（華東）
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU364;TU352.11

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