本文選題：雙鋼板混凝土組合剪力墻 + 開洞　； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：開洞雙鋼板混凝土組合剪力墻結(jié)構(gòu)以其高承載力和良好的抗震性能在高層和超高層建筑中得到初步應(yīng)用。本文結(jié)合一字型多腔雙鋼板混凝土組合剪力墻和開洞雙鋼板混凝土組合剪力墻構(gòu)建一種新型多腔開洞雙鋼板混凝土組合剪力墻結(jié)構(gòu)(簡稱普通開洞雙鋼板組合剪力墻),在此基礎(chǔ)上,將鋼管約束混凝土的概念引入普通開洞雙鋼板組合剪力墻,通過在每層組合剪力墻頂與樓板交接處將外包鋼板切斷并預(yù)留一定寬度的縫隙形成一種新型組合剪力墻結(jié)構(gòu)(簡稱為約束型開洞雙鋼板組合剪力墻)。兩種結(jié)構(gòu)均能夠滿足結(jié)構(gòu)承載能力和剛度的要求,抗震性能良好,還能夠滿足建筑預(yù)留門窗洞口的要求,外側(cè)鋼板使墻體表面平整且可兼做模板,加快施工速度,內(nèi)部混凝土也可起到保溫、隔音的作用,在高層和超高層建筑結(jié)構(gòu)中有良好的應(yīng)用前景。但如何對其進行參數(shù)優(yōu)化,約束型開洞雙鋼板混凝土組合剪力墻結(jié)構(gòu)在不同地震波作用下的抗震性能如何,是其應(yīng)用于工程實際之前需要解決的問題。圍繞這一問題,本文進行了以下幾方面具體工作:1.為驗證利用ABAQUS模擬開洞雙鋼板混凝土組合剪力墻結(jié)構(gòu)抗震性能的可行性與合理性,本文利用ABAQUS建立與既有試驗中的開洞雙鋼板混凝土組合剪力墻模型相同的有限元模型,在相同受力情況下有限元模型與試驗?zāi)Ｐ偷某跏紕偠�、屈服荷載和峰值承載力最大誤差均在可接受的范圍內(nèi),因此本文認為利用ABAQUS模擬開洞雙鋼板混凝土組合剪力墻結(jié)構(gòu)抗震性能是可行的。2.為對開洞雙鋼板混凝土組合剪力墻進行參數(shù)優(yōu)化,本文利用ABAQUS建立單層單片開洞雙鋼板組合剪力墻有限元模型,通過對比分析應(yīng)力云圖、面外位移圖、滯回曲線和骨架曲線研究鋼板厚度、鋼材強度、混凝土強度、洞口形式、軸壓比、鋼板高度、隔板間距、混凝土板厚度和高厚比對其在水平往復(fù)荷載作用下滯回性能的影響,其中改變鋼板高度旨在研究約束型開洞雙鋼板組合剪力墻中預(yù)留縫隙的最優(yōu)寬度。分析結(jié)果表明:鋼板厚度、混凝土板厚度和高厚比對組合剪力墻的初始剛度與承載力影響顯著,混凝土強度等級、洞口形式、軸壓比、鋼板高度和隔板間距對組合剪力墻初始剛度和承載力影響不大,鋼材強度對組合剪力墻的初始剛度和延性基本沒有影響,但對組合剪力墻的承載力影響較大。3.為研究約束型開洞雙鋼板組合剪力墻在不同地震波作用下的抗震性能,本文利用ABAQUS建立不同墻體厚度的十層普通開洞雙鋼板組合剪力墻結(jié)構(gòu)與十層約束型開洞雙鋼板組合剪力墻結(jié)構(gòu)有限元模型,采用時程分析法對其在不同8度多遇、8度罕遇和9度罕遇地震波作用下的抗震性能進行對比分析。分析結(jié)果表明:在不同地震波作用下,結(jié)構(gòu)地震響應(yīng)曲線的變化規(guī)律與輸入地震波相近,但出現(xiàn)了峰值滯后的現(xiàn)象;結(jié)構(gòu)的地震響應(yīng)不僅與地震強度和結(jié)構(gòu)形式有關(guān),還和輸入地震波波形有關(guān);在多遇地震波作用下墻體厚度對結(jié)構(gòu)的地震響應(yīng)影響不是很大,在罕遇地震波作用下墻體厚度對約束型開洞雙鋼板組合剪力墻結(jié)構(gòu)的地震響應(yīng)影響不是很大,對普通開洞雙鋼板組合剪力墻結(jié)構(gòu)的地震響應(yīng)較為明顯;不同地震波作用下的同一墻體厚度的約束型開洞雙鋼板組合剪力墻結(jié)構(gòu)的加速度響應(yīng)峰值小于普通開洞雙鋼板組合剪力墻結(jié)構(gòu),說明約束型開洞雙鋼板組合剪力墻抗震性能更好;結(jié)構(gòu)在不同地震波作用下均未發(fā)生破壞。
[Abstract]:With its high bearing capacity and good seismic performance, the open double steel concrete composite shear wall structure is preliminarily applied to high rise and super high-rise buildings. In this paper, a new type of composite shear wall with multiple cavity and double steel plate concrete composite shear walls and double steel plate concrete composite shear walls is built in this paper. On this basis, the concept of steel tube confined concrete is introduced into a general open double steel plate composite shear wall, and a new type of composite shear wall structure is formed by cutting off the steel plate and retaining a certain width at the junction of each composite shear wall top to the floor. The two structures can meet the requirements of the bearing capacity and stiffness of the structure. It has good seismic performance and can meet the requirements of the opening of the opening doors and windows of the building. The outer steel plate makes the wall surface smooth and can be used as a template to speed up the construction speed. The internal concrete can also play the role of insulation and sound insulation. There is a good application prospect in high-rise and super high-rise building structures. However, how to optimize its parameters and how the seismic performance of the constrain open double steel concrete composite shear wall structure under the action of different seismic waves is a problem that needs to be solved before it is applied to the engineering practice. The specific work: 1. is to verify the feasibility and rationality of using ABAQUS to simulate the seismic performance of the composite shear wall structure with open double steel plate concrete. This paper uses ABAQUS to establish the same finite element model as the model of the open double steel concrete composite shear wall model in the existing experiment, and the initial finite element model and the experimental model under the same stress condition. The maximum error of the initial stiffness, the yield load and the peak load capacity are all acceptable. Therefore, this paper considers that the seismic performance of the double steel reinforced concrete composite shear wall structure with ABAQUS is feasible and.2. is the parameter optimization for the double steel plate concrete composite shear wall with open holes. In this paper, a single single layer single hole double hole double shear wall is established in this paper. The finite element model of steel plate composite shear wall is made to study the influence of steel plate thickness, steel strength, concrete strength, hole form, axial compression ratio, steel plate height, partition spacing, thickness and thickness ratio of concrete plate under horizontal reciprocating load by comparison and analysis of stress cloud, surface displacement diagram, hysteresis curve and skeleton curve. The results show that the thickness of the steel plate, the thickness of the concrete plate and the high thickness ratio have significant influence on the initial stiffness and bearing capacity of the composite shear wall, and the strength grade of the concrete, the form of the hole, the axial compression ratio, the height of the steel plate and the spacing of the baffle plate. The initial stiffness and bearing capacity of the composite shear wall have little influence. The strength of steel has no effect on the initial stiffness and ductility of the composite shear wall, but the bearing capacity of the composite shear wall is greatly influenced by.3. as the seismic performance of the confined double steel plate composite shear wall under the action of different seismic waves. In this paper, different walls are established by using ABAQUS. The finite element model of ten layers of composite shear wall structure with body thickness and ten layer restrained open double steel plate combined shear wall structure is used to analyze the seismic performance of the composite shear wall structure under the action of different 8 degrees, 8 degrees and 9 rare earthquake waves by time history analysis. The variation of structural seismic response curve is similar to that of the input seismic wave, but there is a phenomenon of peak lag. The seismic response of the structure is not only related to the earthquake intensity and structure form, but also related to the waveform of the input seismic wave. The thickness of the wall is not very important to the seismic response of the structure under the action of many seismic waves. The influence of the thickness of the lower wall on the seismic response of the composite shear wall structure with restricted open double steel plate is not great. The seismic response of the composite shear wall structure with the ordinary opening double steel plate is more obvious, and the acceleration response peak of the double steel plate composite shear wall with the same wall thickness under the action of different seismic waves is less than that of the universal shear wall structure. The composite shear wall structure with open hole double steel plate shows that the seismic performance of the restrained open double steel plate composite shear wall is better, and the structure has not been damaged under the action of different seismic waves.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU398.2;TU352.11

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