發(fā)布時(shí)間：2018-05-14 13:18

  本文選題：鋼框架 + 箱型柱　； 參考：《哈爾濱工業(yè)大學(xué)》2015年碩士論文

【摘要】：目前,鋼框架結(jié)構(gòu)已經(jīng)在多層和高層建筑中得到了非常廣泛地應(yīng)用。在鋼框架結(jié)構(gòu)體系中,連接框架梁柱的節(jié)點(diǎn)是影響框架整體強(qiáng)度和工作性能的核心因素。節(jié)點(diǎn)的構(gòu)造和工作性能決定了鋼結(jié)構(gòu)的經(jīng)濟(jì)指標(biāo)、施工方法、安全性以及適用范圍等。相比于傳統(tǒng)的剛接鋼結(jié)構(gòu)節(jié)點(diǎn),半剛性具有更加優(yōu)秀的轉(zhuǎn)動(dòng)能力和更好的延性,可以通過(guò)自身的變形在地震中更好地消耗能量,而避免脆性破壞。半剛性節(jié)點(diǎn)具有多種多樣的構(gòu)造形式。當(dāng)前各國(guó)學(xué)者正致力于研發(fā)出力學(xué)性能優(yōu)良、施工更簡(jiǎn)便以及具有更高性價(jià)比的新型鋼結(jié)構(gòu)節(jié)點(diǎn)。提出一種符合上述條件的節(jié)點(diǎn)連接方式,探索新節(jié)點(diǎn)在靜荷載和動(dòng)荷載作用下的力學(xué)性能,進(jìn)而優(yōu)化節(jié)點(diǎn)的構(gòu)造和抗震設(shè)計(jì)方案,具有重要的理論和實(shí)際意義。本文對(duì)一種新型鋼框架梁柱節(jié)點(diǎn)連接形式—箱型柱—工字型梁頂?shù)捉卿摴?jié)點(diǎn)進(jìn)行了有限元模擬研究,建立足尺模型分別模擬節(jié)點(diǎn)靜載試驗(yàn)和低周往復(fù)荷載試驗(yàn)。觀察并總結(jié)節(jié)點(diǎn)的應(yīng)力分布和應(yīng)力發(fā)展規(guī)律;探討節(jié)點(diǎn)的破壞機(jī)理和破壞方式;確定組成節(jié)點(diǎn)各構(gòu)件的參數(shù)變化對(duì)節(jié)點(diǎn)工作性能的影響;提取節(jié)點(diǎn)彎矩—轉(zhuǎn)角曲線和滯回曲線;歸納節(jié)點(diǎn)的初始轉(zhuǎn)動(dòng)剛度、強(qiáng)度以及耗能性能等;對(duì)比無(wú)隔板箱型柱—工字型梁頂?shù)捉卿摴?jié)點(diǎn)與內(nèi)置橫縱隔板箱型柱—工字型梁頂?shù)捉卿撨B接節(jié)點(diǎn)工作性能。采用簡(jiǎn)化分析方法,討論了節(jié)點(diǎn)彎矩承載力的計(jì)算方法。本文的研究結(jié)果表明:1)箱型柱—工字型梁頂?shù)捉卿摳邚?qiáng)螺栓節(jié)點(diǎn)是一種典型的半剛性連接方式,同時(shí)兼?zhèn)淞己玫某跏紕偠群蛷澗爻休d力,在地震荷載的作用下具有良好的延性和耗能能力;2)頂?shù)捉卿摰暮穸群吐菟�孔開設(shè)位置是影響節(jié)點(diǎn)剛度和承載能力的主要因素;3)箱型柱—工字型梁頂?shù)捉卿摴?jié)點(diǎn)在有軸力影響的工作狀態(tài)下仍能夠保持良好的工作性能;4)內(nèi)置橫縱隔板可以有效地提高箱型柱—工字型梁節(jié)點(diǎn)抗震性能;5)采用簡(jiǎn)化分析方法計(jì)算可以求得較為合理的節(jié)點(diǎn)彎矩承載力。
[Abstract]:At present, steel frame structures have been widely used in multi-storey and high-rise buildings. In the steel frame structure system, the joint of the frame Liang Zhu is the core factor which affects the overall strength and the working performance of the frame. The construction and working performance of the joint determine the economic index, construction method, safety and applicable range of steel structure. Compared with the traditional steel joints semi-rigid has better rotation ability and better ductility which can consume energy better and avoid brittle failure through its own deformation. Semi-rigid joints have a variety of structural forms. At present, scholars all over the world are devoting themselves to the development of new steel structural joints with excellent mechanical properties, simpler construction and higher cost performance. It is of great theoretical and practical significance to propose a joint connection mode which meets the above conditions, to explore the mechanical properties of the new joint under static and dynamic loads, and to optimize the joint structure and seismic design scheme. In this paper, the finite element simulation of a new type of steel frame Liang Zhu joint connection, box column-I-beam angle joint, is carried out, and a full-scale model is established to simulate the static load test and low-cycle reciprocating load test respectively. Observe and summarize the stress distribution and stress development law of the joint; discuss the failure mechanism and failure mode of the joint; determine the influence of the parameter change of each component of the joint on the joint performance; extract the moment-rotation curve and hysteretic curve of the joint; The initial rotational stiffness, strength and energy dissipation performance of the joint are summarized, and the working performance of the connection joint between the top and bottom angle steel joint of the box column and I-shaped beam without partition plate is compared with that of the top-bottom angle steel joint of the built-in transverse mediastinal box-I-shaped beam. A simplified analysis method is used to calculate the moment bearing capacity of joints. The research results of this paper show that the high strength bolt joint of box column and I-shaped beam is a typical semi-rigid connection, and it also has good initial stiffness and bending moment bearing capacity. The thickness of top and bottom angle steel and the opening position of bolt hole are the main factors influencing the joint stiffness and bearing capacity. 4) the built-in transverse plate can effectively improve the seismic performance of box column-I-shaped beam joints. 5) the simplified analysis method can be used to calculate the seismic behavior of the joints of box column-I-shaped beams. The moment bearing capacity of the joint.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU391

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本文編號(hào)：1888009