【摘要】：隨著經(jīng)濟(jì)的快速發(fā)展,城市空間日趨緊張,城市高層建筑日益增多。鋼筋混凝土剪力墻結(jié)構(gòu)作為高層建筑的主要形式也得到了廣泛使用。剪力墻結(jié)構(gòu)中的連梁聯(lián)系各片墻肢,是為剪力墻提供剛度和耗散能量的重要構(gòu)件。然而,鋼筋混凝土連梁滯回性能及耗能能力不強(qiáng)。地震中,鋼筋混凝土連梁會(huì)出現(xiàn)損傷,震后修復(fù)困難。本文提出了一種耗能能力強(qiáng)、性能穩(wěn)定、震后可修復(fù)、施工方便的耗能連梁。本文的主要研究?jī)?nèi)容及成果如下:通過(guò)有限元模擬并對(duì)多種開(kāi)洞形式的阻尼器性能進(jìn)行比較后提出了兩種耗能連梁阻尼器(Ⅰ型、Ⅱ型阻尼器)。分別研究了Ⅰ型、Ⅱ型阻尼器的滯回性能、剛度,得出了Ⅰ型、Ⅱ型阻尼器的骨架曲線,并對(duì)這兩種阻尼器的本構(gòu)關(guān)系進(jìn)行了簡(jiǎn)化。研究了普通鋼筋混凝土連梁及截?cái)嗍胶哪苓B梁剛度。分別給出了普通鋼筋混凝土連梁和截?cái)嗍胶哪苓B梁剛度計(jì)算公式。依據(jù)等剛度思路,提出了截?cái)嗍胶哪苓B梁等剛度替換設(shè)計(jì)方法。使用Perform-3D建立一片聯(lián)肢墻模型。分別對(duì)使用普通鋼筋混凝土連梁的墻肢及安裝了耗能連梁的墻肢進(jìn)行時(shí)程分析,各地震波作用下結(jié)構(gòu)最大層間位移角均一定程度減小。隨后研究了耗能連梁屈服力對(duì)阻尼器的影響。分析結(jié)果表明,隨著阻尼器屈服力的減小,耗能連梁耗能比增加,墻肢最大層間位移角以及墻肢基底剪力呈現(xiàn)下降趨勢(shì)。
[Abstract]:With the rapid development of economy, urban space is increasingly tense, and urban high-rise buildings are increasing day by day. Reinforced concrete shear wall structure is also widely used as the main form of high-rise building. Connecting beam in shear wall structure is an important component to provide stiffness and energy dissipation for shear wall. However, the hysteretic behavior and energy dissipation capacity of reinforced concrete connecting beams are not strong. During the earthquake, reinforced concrete beams will be damaged, and it is difficult to repair them after the earthquake. In this paper, a kind of energy dissipation connecting beam with strong energy dissipation ability, stable performance, repairable after earthquake and convenient construction is proposed. The main contents and achievements of this paper are as follows: two kinds of energy dissipation connected beam dampers (type I and type 鈪，

本文編號(hào)：2443108