本文選題：鋼-混凝土組合結(jié)構(gòu) + ABAQUS��； 參考：《中南大學(xué)》2013年碩士論文

【摘要】：國(guó)內(nèi)外對(duì)鋼-混凝土組合結(jié)構(gòu)的靜力性能已經(jīng)進(jìn)行了大量的試驗(yàn)研究和理論研究,但對(duì)鋼-混凝土組合結(jié)構(gòu)在地震波作用下的抗震性能的研究多以試驗(yàn)為主,理論為輔。本文運(yùn)用有限元法對(duì)鋼-混凝土組合結(jié)構(gòu)的抗震性能以及靜力性能進(jìn)行研究。主要研究?jī)?nèi)容如下： (1)選擇一種在反復(fù)加載和循環(huán)加載下的適合運(yùn)用于ABAQUS軟件分析的混凝土塑性損傷本構(gòu)模型和鋼材混合強(qiáng)化模型,并通過(guò)利用ABAQUS軟件對(duì)循環(huán)荷載下圓鋼管混凝土柱、鋼混凝土組合梁、鋼管混凝土柱-鋼梁組合節(jié)點(diǎn)、鋼管混凝土柱-鋼梁組合框架進(jìn)行非線性有限元分析,建立三維有限元模型,將計(jì)算結(jié)果與試驗(yàn)結(jié)果進(jìn)行對(duì)比,驗(yàn)證所選擇的本構(gòu)模型適用于鋼-混組合結(jié)構(gòu)的抗震性能分析； (2)利用ABAQUS軟件對(duì)兩層一跨圓鋼管混凝土柱-鋼混凝土組合樓蓋框架進(jìn)行非線性有限元分析,在此基礎(chǔ)上建立鋼-混凝土組合框架在不同峰值加速度的地震波作用下的三維有限元模型,將計(jì)算結(jié)果與試驗(yàn)結(jié)果進(jìn)行對(duì)比分析,通過(guò)典型的算例分析鋼-混凝土組合框架在地震波作用下的時(shí)程分析；分析剪力連接件構(gòu)件數(shù)量對(duì)鋼-混凝土組合框架抗震性能的影響； (3)利用ABAQUS軟件對(duì)啞鈴型鋼管混凝土軸壓中長(zhǎng)柱進(jìn)行非線性有限元分析,建立啞鈴型鋼管混凝土柱的三維有限元模型,主要考慮長(zhǎng)細(xì)比、含鋼率、鋼材強(qiáng)度和混凝土強(qiáng)度對(duì)啞鈴型鋼管混凝軸壓中長(zhǎng)度穩(wěn)定性的影響,提出考慮了長(zhǎng)細(xì)比和含鋼率因素的啞鈴型鋼管混凝土軸壓中長(zhǎng)柱的承載力實(shí)用計(jì)算公式。
[Abstract]:The static behavior of steel-concrete composite structures has been studied in many experiments and theories at home and abroad, but the seismic behavior of steel-concrete composite structures under the action of seismic waves is mainly studied by experiments, and the theory is secondary. In this paper, finite element method is used to study the seismic and static behavior of steel-concrete composite structures. The main contents of the study are as follows: 1) selecting a concrete plastic damage constitutive model and steel mixed strengthening model suitable for the analysis of ABAQUS software under repeated and cyclic loading, and using ABAQUS software to analyze the circular concrete-filled steel tube columns under cyclic load. The nonlinear finite element analysis of steel reinforced concrete composite beam, concrete-filled steel tubular column-steel beam composite joint and concrete-filled steel tubular column steel beam composite frame is carried out, and the three-dimensional finite element model is established, and the calculated results are compared with the experimental results. It is verified that the selected constitutive model is suitable for the seismic performance analysis of steel-concrete composite structures. Using ABAQUS software, the nonlinear finite element analysis of the composite floor frame with two stories and one span circular concrete-filled steel tube column and steel concrete is carried out. On this basis, the three-dimensional finite element model of steel-concrete composite frame subjected to seismic waves with different peak accelerations is established, and the calculated results are compared with the experimental results. The time-history analysis of steel-concrete composite frame under the action of seismic wave and the influence of the number of shear connection members on the seismic behavior of steel-concrete composite frame are analyzed through typical examples. In this paper, the nonlinear finite element analysis of concrete filled dumbbell concrete filled steel tube columns under axial compression is carried out by using ABAQUS software, and the three-dimensional finite element model of concrete filled steel tube columns is established, which mainly considers the aspect ratio and steel content. The influence of steel strength and concrete strength on the stability of the length of concrete filled dumbbell-shaped steel tube under concrete-bearing axial compression is studied. A practical formula for calculating the bearing capacity of concrete filled dumbbell-shaped steel tube under axial compression is presented, which takes into account the factors of aspect ratio and steel ratio.
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU398.9;TU311.3

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本文編號(hào)：1815091