本文關(guān)鍵詞：方鋼管柱裝配式鋼結(jié)構(gòu)梁柱節(jié)點(diǎn)性能研究　出處：《吉林建筑大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 方鋼管柱 桁架梁 有限元分析 彎矩-轉(zhuǎn)角曲線 破壞形態(tài)

【摘要】：眾所周知,裝配式結(jié)構(gòu)具有建設(shè)周期短、材料利用率高、工程污染小等一系列優(yōu)點(diǎn),對(duì)于一個(gè)框架結(jié)構(gòu)來(lái)說(shuō),節(jié)點(diǎn)的性能顯得尤為重要。方鋼管柱表面積較小、強(qiáng)軸和弱軸的抗彎剛度相差不大,目前我國(guó)主要針對(duì)方鋼管柱-H型梁和方鋼管柱-工字鋼梁節(jié)點(diǎn)性能的研究,有關(guān)方鋼管柱-桁架梁節(jié)點(diǎn)的研究寥寥無(wú)幾,對(duì)于方鋼管柱-桁架梁節(jié)點(diǎn)的推廣受到一定限制。因此,研發(fā)方鋼管柱-桁架梁節(jié)點(diǎn)對(duì)節(jié)點(diǎn)新構(gòu)造的推廣具有較高的實(shí)際價(jià)值。本文用有限元軟件建立了邊柱無(wú)斜撐、邊柱有斜撐、中柱無(wú)斜撐和中柱有斜撐四種節(jié)點(diǎn)形式的模型,對(duì)節(jié)點(diǎn)在單調(diào)荷載作用下進(jìn)行非線性分析,并對(duì)比分析了斜撐的設(shè)置所帶來(lái)的影響。研究得出了節(jié)點(diǎn)的極限承載力、初始剛度、破壞形態(tài)、節(jié)點(diǎn)轉(zhuǎn)角以及梁柱夾角隨軸向荷載變化的情況。非線性模擬分析表明節(jié)點(diǎn)的強(qiáng)度、剛度和轉(zhuǎn)動(dòng)能力隨著軸力的增大逐漸增大而后減小,斜撐的存在不僅有效的轉(zhuǎn)移了塑性鉸,而且還提高了節(jié)點(diǎn)的強(qiáng)度、剛度和轉(zhuǎn)動(dòng)能力。整理了三類方法對(duì)節(jié)點(diǎn)類別的確定,本文采用非線性M-θ_r關(guān)系曲線理論,對(duì)四種類型的節(jié)點(diǎn)進(jìn)行剛度類別確定。結(jié)果表明節(jié)點(diǎn)的剛性隨著軸力的變化而變化。另外,采用反彎點(diǎn)法對(duì)已建的建筑物進(jìn)行計(jì)算分析,分析得出該建筑物滿足要求,有足夠的安全儲(chǔ)備。最后,提出了有關(guān)方鋼管柱-桁架梁節(jié)點(diǎn)還需要更深層次的研究的問(wèn)題。
[Abstract]:As everyone knows, the assembly structure has a short construction period, high utilization rate of materials, a series of merits of little pollution, for a frame structure, node performance is very important. The smaller surface area of the steel tube column, stiffness difference of flexural strength and weak axis, the current research focused in our country each other -H type steel column and beam square steel tubular column - beam joints, research on scanty square steel tubular column truss beam joint, for the promotion of square steel tube truss column beam joint is restricted. Therefore, the actual value has high promotion and R & D square steel tubular column truss beam joint of new tectonic node. In this paper, using the finite element software to establish a side column without brace, a side column brace, column and column without brace in a diagonal four node model, the nodes are nonlinear analysis under monotonic loading, and comparative analysis of cable Impact of braces. Studied the ultimate bearing capacity of the joint, the initial stiffness, failure modes, joint angle and beam angle changes with axial loading. Nonlinear simulation analysis show that the strength of joint, increase the stiffness and rotation capacity with axial force increases gradually and then decreases, the bracing there is not only the effective transfer of the plastic hinge, and the node strength is improved, the stiffness and rotation capacity. Three kinds of finishing methods to determine the node category, this paper adopts nonlinear M- theta _r curve theory of four types of nodes are determined. The results show that the stiffness of category nodes change with rigid the axial force changes. In addition, calculation and analysis of the buildings have been built by the inflection point method, analysis of the building to meet the requirements, there is enough safety. Finally, put forward the square steel tubular column truss beam joint There is also a need for deeper research.

【學(xué)位授予單位】：吉林建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TU391

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 韓慶華;劉銘R，

本文編號(hào)：1415045