本文選題：粘鋼加固　切入點(diǎn)：靜力彈塑性分析　出處：《河北聯(lián)合大學(xué)》2014年碩士論文

【摘要】：2008年汶川地震以后，抗震設(shè)防問題成為專家和研究人員所關(guān)注的熱點(diǎn)。通過資料調(diào)查顯示，早期的建筑物由于當(dāng)時(shí)設(shè)計(jì)的標(biāo)準(zhǔn)低，，不能滿足現(xiàn)在抗震設(shè)防能力，導(dǎo)致震害損失嚴(yán)重�；谝陨显�，隨后國(guó)家頒布了新的抗震設(shè)計(jì)規(guī)范，早期的建筑物無法滿足現(xiàn)今規(guī)范關(guān)于抗震設(shè)防的要求，需要對(duì)早期的建筑物按照新規(guī)范進(jìn)行抗震能力評(píng)估，不能滿足要求的，需要對(duì)其進(jìn)行加固處理，從而最大限度的減少人員的傷亡和財(cái)產(chǎn)的損失。 近年來，加固技術(shù)在國(guó)內(nèi)外快速發(fā)展，而鋼板加固具有硬化時(shí)間短、所占空間小、工藝簡(jiǎn)單、施工方便、粘貼牢固、受力均衡以及加固效果明顯等的優(yōu)勢(shì)，得到了廣大科研人員和施工人員的青睞。 對(duì)混凝土結(jié)構(gòu)加固的幾種常用方法進(jìn)行了詳細(xì)介紹。通過對(duì)一棟2005年設(shè)計(jì)的二層幼兒園框架結(jié)構(gòu)進(jìn)行粘鋼加固設(shè)計(jì)，再現(xiàn)了加固設(shè)計(jì)的基本假定、計(jì)算理論、計(jì)算方法、加固方案的選擇以及加固構(gòu)造方法等。結(jié)合加固工程實(shí)例，首先利用有限元分析軟件SAP2000分別建立了粘貼鋼板加固前后的鋼筋混凝土結(jié)構(gòu)的模型，對(duì)其進(jìn)行了靜力彈塑性分析，對(duì)其抗震能力進(jìn)行了評(píng)估，并對(duì)其進(jìn)行了對(duì)比分析。然后將模型導(dǎo)入Perform-3D中，在Perform-3D中進(jìn)行了動(dòng)力彈塑性分析，對(duì)其抗震能力進(jìn)行了評(píng)估。最后選擇了層間位移和樓層位移兩個(gè)參數(shù)對(duì)靜力彈塑性分析和動(dòng)力彈塑性分析進(jìn)行了對(duì)比，得出動(dòng)力彈塑性分析的結(jié)果較靜力彈塑性分析的結(jié)果偏大。
[Abstract]:After the Wenchuan earthquake in 2008, seismic fortification has become the focus of attention of experts and researchers.The investigation shows that the early buildings could not meet the present seismic fortification capacity due to the low design standards at that time, resulting in serious damage to the earthquake.For the above reasons, the country subsequently issued a new seismic design code. The early buildings could not meet the requirements of the current code for seismic fortification, so it is necessary to assess the seismic capacity of the early buildings according to the new code.If it can not meet the requirements, it should be strengthened to minimize casualties and property losses.In recent years, the reinforcement technology has developed rapidly at home and abroad, and the steel plate reinforcement has the advantages of short hardening time, small space, simple technology, easy construction, firm bonding, balanced force and obvious reinforcement effect, etc.By the majority of scientific research and construction personnel favor.Several common methods of strengthening concrete structures are introduced in detail.Through the design of a two-story kindergarten frame structure designed in 2005, the basic assumption, calculation theory, calculation method, reinforcement scheme selection and reinforcement construction method of the reinforcement design are reappeared.Combined with the example of strengthening engineering, the model of reinforced concrete structure before and after strengthening with steel plate is established by using finite element analysis software SAP2000, and the static elastic-plastic analysis is carried out, and its seismic capacity is evaluated.A comparative analysis was made on it.Then the model is introduced into Perform-3D, and the dynamic elastic-plastic analysis is carried out in Perform-3D, and its seismic capacity is evaluated.Finally, the static elastoplastic analysis and the dynamic elastoplastic analysis are compared between the floor displacement and the floor displacement. The results of the dynamic elastoplastic analysis are larger than that of the static elastoplastic analysis.
【學(xué)位授予單位】：河北聯(lián)合大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU352.11;TU375

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