本文選題：鋼框架　切入點：填充墻　出處：《長安大學》2013年碩士論文

【摘要】：加氣混凝土砌塊是20世紀30年代發(fā)展起來的一種新型建筑材料，其生產(chǎn)原料主要有石灰、河砂、火山灰、粉煤灰等，是一種新型節(jié)能環(huán)保材料。其具有容重輕、強度利用率大、隔熱保溫性能好、隔音、耐久、耐火、抗震性能好等優(yōu)點，因此被越來越多的運用于現(xiàn)代建筑結(jié)構(gòu)中。 鋼結(jié)構(gòu)住宅體系是近年來住宅市場發(fā)展較為迅速的結(jié)構(gòu)形式之一，將成為我國未來住宅體系的主要發(fā)展趨勢之一，具有自重輕、材料強度高、構(gòu)件截面尺寸小、有效使用面積大、外形美觀、施工速度快、經(jīng)濟效益好、環(huán)境污染小、抗震性能好、易于產(chǎn)業(yè)化等特點。在鋼結(jié)構(gòu)住宅體系中，填充墻鋼框架結(jié)構(gòu)是目前廣泛使用的建筑結(jié)構(gòu)形式。雖然國內(nèi)外已對填充墻鋼框架結(jié)構(gòu)做了較全面的研究，但是針對加氣混凝土砌塊填充墻鋼框架結(jié)構(gòu)的研究依然不夠全面，尤其是墻體洞口對整體結(jié)構(gòu)受力性能和抗震性能影響方面的研究依然十分有限。因此，本文對開洞加氣混凝土砌塊填充墻鋼框架結(jié)構(gòu)在低周循環(huán)荷載作用下的抗震性能進行了以下幾方面的研究： 1.參照前人研究成果，利用ANSYS非線性有限元軟件建立有限元模型，并與前人試驗成果進行了比較，驗證了有限元模型的正確性和可行性。 2.在有限元模型經(jīng)過可行性驗證的基礎上，結(jié)合工程實際，設計出3個系列共9個非線性有限元足尺模型，并分別施加單調(diào)荷載和低周循環(huán)荷載作用，來研究其受力性能和破壞機理。通過改變洞口位置及洞口尺寸等參數(shù)，，研究洞口位置和洞口尺寸變化對開洞加氣混凝土砌塊填充墻鋼框架受力性能的影響，并提出對工程有參考價值的結(jié)論和設計建議。 3.通過改變框架與填充墻之間的摩擦系數(shù)和結(jié)構(gòu)的軸壓比、高跨比等參數(shù)，研究了各個參數(shù)對開洞加氣混凝土砌塊填充墻鋼框架受力性能的影響，并得出了一些對實際工程有指導意義的結(jié)論。
[Abstract]:Aerated concrete block is a new kind of building material developed in 1930s. Its main raw materials are lime, river sand, pozzolanic ash, fly ash and so on. It is a new energy saving and environmental protection material.It has the advantages of light bulk density, large utilization ratio of strength, good thermal insulation, sound insulation, durability, fire resistance, good seismic performance and so on, so it is more and more used in modern building structures.The steel structure housing system is one of the structure forms which develops rapidly in the housing market in recent years. It will become one of the main developing trends of the future housing system in our country. It has light weight, high material strength and small section size of the members.It is characterized by large effective use area, beautiful appearance, fast construction speed, good economic benefit, low environmental pollution, good seismic performance and easy industrialization.In the steel structure housing system, the infilled wall steel frame structure is widely used at present.Although the domestic and foreign has made the more comprehensive research on the filled wall steel frame structure, but the research on the aerated concrete block filled wall steel frame structure is still not comprehensive enough.Especially, the influence of the wall opening on the mechanical and seismic behavior of the whole structure is still very limited.Therefore, in this paper, the seismic behavior of the steel frame structure filled with aerated concrete block with open hole under low cyclic load is studied in the following aspects:1.According to the previous research results, the finite element model is established by using ANSYS nonlinear finite element software, and compared with the previous experimental results, the correctness and feasibility of the finite element model are verified.2.On the basis of the feasibility verification of the finite element model and the engineering practice, three series of nine nonlinear full-scale finite element models are designed, which are subjected to monotone load and low-cycle cyclic load respectively.To study its mechanical properties and failure mechanism.By changing the location and size of the hole, the influence of the location of the hole and the size of the hole on the mechanical behavior of the steel frame filled with the aerated concrete block is studied, and the conclusions and design suggestions for the engineering are put forward.3.By changing the friction coefficient between the frame and the infilled wall, the axial compression ratio and the ratio of height to span of the structure, the influence of each parameter on the mechanical behavior of the steel frame filled with the aerated concrete block is studied.Some conclusions of guiding significance to practical engineering are obtained.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU31;TU398

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本文編號：1702838