本文選題：鋼筋混凝土結(jié)構(gòu) + 剛度調(diào)節(jié)盒��； 參考：《沈陽(yáng)建筑大學(xué)》2014年碩士論文

【摘要】：我國(guó)位于世界兩大地震帶之間,地震發(fā)生頻繁,而鋼筋混凝土結(jié)構(gòu)在我國(guó)應(yīng)用極為廣泛,因此在鋼筋混凝土結(jié)構(gòu)的抗震性能方面我國(guó)有著較高要求。目前在我國(guó)高強(qiáng)度鋼筋、高強(qiáng)度高性能混凝土等新材料的研究和使用已較為普遍,鋼筋混凝土結(jié)構(gòu)在建筑領(lǐng)域的應(yīng)用范圍更已不斷擴(kuò)大,因此研究鋼筋混凝土結(jié)構(gòu)的抗震性能具有重大的理論意義和實(shí)際意義,通過(guò)對(duì)混凝土結(jié)構(gòu)抗震性能的研究可以為框架結(jié)構(gòu)的設(shè)計(jì)提供理論依據(jù),為實(shí)際工程應(yīng)用提供技術(shù)指導(dǎo)。本項(xiàng)目以遼寧省營(yíng)口市經(jīng)濟(jì)技術(shù)開(kāi)發(fā)區(qū)建詢施工圖審查中心合作項(xiàng)目為背景,對(duì)鋼筋混凝土框架結(jié)構(gòu)的梁柱節(jié)點(diǎn)進(jìn)行抗震性能有限元分析和加載試驗(yàn),設(shè)計(jì)并加工了不同尺寸參數(shù)的剛度調(diào)節(jié)構(gòu)件以及預(yù)埋剛度調(diào)節(jié)構(gòu)件的鋼筋混凝土樓板試件,對(duì)試件進(jìn)行靜力荷載作用下的試驗(yàn)以及有限元分析,研究各項(xiàng)因素對(duì)節(jié)點(diǎn)抗震性能、延性性能以及剛度和強(qiáng)度退化的影響。本文主要介紹了翼緣削弱型鋼筋混凝土梁柱節(jié)點(diǎn)抗震性能研究中為削弱T形梁翼緣,降低T形梁剛度而設(shè)計(jì)的金屬構(gòu)件：剛度調(diào)節(jié)盒。主要內(nèi)容為對(duì)剛度調(diào)節(jié)盒試件以及預(yù)埋剛度調(diào)節(jié)盒的鋼筋混凝土樓板試件進(jìn)行有限元分析和靜力加載試驗(yàn),對(duì)有限元分析結(jié)果以及試驗(yàn)結(jié)果數(shù)據(jù)進(jìn)行分析與總結(jié),總結(jié)其受力及工作、破壞機(jī)理,得出計(jì)算表達(dá)式；有限元分析結(jié)果能夠與試驗(yàn)結(jié)果較好吻合,說(shuō)明了試驗(yàn)結(jié)果較為準(zhǔn)確可靠,同時(shí)也證明了有限元分析中構(gòu)件單元選取的正確性。試驗(yàn)結(jié)果顯示：剛度調(diào)節(jié)盒能夠有效的降低翼緣混凝土剛度并適當(dāng)降低其強(qiáng)度,能夠在外荷載較小時(shí)為結(jié)構(gòu)的正常使用功能提供足夠的強(qiáng)度與剛度,保證無(wú)震和小震作用下能夠維持結(jié)構(gòu)的正常的工作狀態(tài)；當(dāng)荷載強(qiáng)度臨近混凝土極限強(qiáng)度時(shí),即混凝土即將破壞但尚未破壞時(shí),剛度調(diào)節(jié)盒先于混凝土屈曲破壞,產(chǎn)生塑性屈曲變形,而使節(jié)點(diǎn)區(qū)T形梁翼緣剛度迅速降低,達(dá)到強(qiáng)柱弱梁的目的。
[Abstract]:China is located between the two major seismic zones in the world. Earthquake occurs frequently, but reinforced concrete structures are widely used in our country. Therefore, there are higher requirements for seismic behavior of reinforced concrete structures in China. At present, the research and application of new materials such as high strength steel bar and high strength high performance concrete have been widely used in our country, and the scope of application of reinforced concrete structure in the field of building has been expanded. Therefore, it is of great theoretical and practical significance to study the seismic behavior of reinforced concrete structures. The study of seismic behavior of concrete structures can provide theoretical basis for the design of frame structures and provide technical guidance for practical engineering applications. Based on the cooperation project of Construction drawing examination Center of Yingkou City, Liaoning Province, the seismic behavior of Liang Zhu joint of reinforced concrete frame structure is analyzed by finite element analysis and loading test. The stiffness adjusting members with different size parameters and the reinforced concrete floor specimens with embedded stiffness adjustment members are designed and processed. The static load tests and finite element analysis of the specimens are carried out to study the seismic behavior of joints due to various factors. Ductility and the effects of stiffness and strength degradation. This paper mainly introduces the design of metal member: stiffness adjusting box for weakening flange flange of reinforced concrete Liang Zhu joint in order to weaken flange of T-beam and reduce stiffness of T-beam. The main contents are the finite element analysis and static loading test of the specimens of the stiffness adjusting box and the reinforced concrete floor specimens of the embedded stiffness adjusting box, and the analysis and summary of the results of the finite element analysis and the test results. The results of finite element analysis are in good agreement with the test results, which show that the test results are accurate and reliable. At the same time, the correctness of the element selection in finite element analysis is also proved. The experimental results show that the stiffness adjusting box can effectively reduce the stiffness and strength of the flange concrete, and can provide enough strength and stiffness for the normal function of the structure when the external load is small. When the load strength is close to the ultimate strength of concrete, that is, when the concrete is about to be destroyed but not destroyed, the stiffness adjusting box is prior to the buckling failure of concrete. Due to plastic buckling deformation, the flange stiffness of T-shaped beam in the joint zone is reduced rapidly to achieve the purpose of strong column and weak beam.
【學(xué)位授予單位】：沈陽(yáng)建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU375

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