本文選題：干砌墻框架 + 尺寸效應(yīng)��； 參考：《哈爾濱工業(yè)大學(xué)》2014年碩士論文

【摘要】：作為我國(guó)應(yīng)用最廣泛的建筑結(jié)構(gòu)形式之一，，填充墻框架結(jié)構(gòu)，具有建筑平面布置靈活、室內(nèi)空間大等優(yōu)點(diǎn)。鋼框架具有施工方便、抗側(cè)剛度大、延性高等優(yōu)點(diǎn)，目前越來(lái)越多地在實(shí)際工程中得到應(yīng)用。作為一種新型的填充墻結(jié)構(gòu)，干砌體填充墻具有良好的延性、耗能性和較小的附加剛度等優(yōu)點(diǎn)，并能夠有效提高結(jié)構(gòu)的抗側(cè)力。干砌體填充墻框架結(jié)構(gòu)的研究對(duì)實(shí)際工程具有重要的意義。本論文以研究砌塊尺寸、墻體尺寸以及梁柱尺寸為主要研究?jī)?nèi)容，對(duì)干砌填充墻鋼框架整體的力學(xué)性能進(jìn)行研究，主要包括以下幾個(gè)方面： 利用有限元軟件ANSYS對(duì)干砌填充墻框架進(jìn)行擬靜力試驗(yàn)仿真，通過(guò)課題組已有的試驗(yàn)數(shù)據(jù)對(duì)有限元模型進(jìn)行調(diào)整，并對(duì)比驗(yàn)證了仿真模型的合理性。對(duì)干砌墻框架結(jié)構(gòu)的力學(xué)性能進(jìn)行分析，得出干砌墻能有效提高整體抗側(cè)力以及墻體應(yīng)力分布符合層位移滑動(dòng)情況的結(jié)論，提出干砌墻框架抗側(cè)剛度和水平抗側(cè)力的理論公式。 建立不同尺寸工況的砌塊和墻體模型，繪制出不同工況下結(jié)構(gòu)的荷載-位移曲線、剛度退化曲線、滯回曲線和骨架曲線等。結(jié)合結(jié)構(gòu)的應(yīng)力分布等力學(xué)特性，系統(tǒng)的分析和研究了小型、中型、大型砌塊尺寸參數(shù)以及不同高跨比墻體尺寸參數(shù)對(duì)鋼框架干砌墻力學(xué)性能的影響，發(fā)現(xiàn)高跨比是影響結(jié)構(gòu)受力機(jī)理的主要因素。對(duì)三種砌塊工況模型進(jìn)行對(duì)比分析，發(fā)現(xiàn)砌塊尺寸大小對(duì)墻體應(yīng)力分布、剛度退化以及墻體抗側(cè)力貢獻(xiàn)均有不同程度的影響，得出一些結(jié)論為實(shí)際工程提供一定的參考。 建立不同尺寸大小墻體和梁柱的干砌墻框架模型，從結(jié)構(gòu)的承載力、剛度、應(yīng)力分布和耗能大小方面對(duì)模型進(jìn)行分析研究，研究發(fā)現(xiàn)墻體尺寸的大小以及梁柱慣性矩比值的大小對(duì)干砌墻框架整體力學(xué)性能有著重要的影響。通過(guò)對(duì)精細(xì)的單層單跨干砌墻框架模型進(jìn)行組合，建立雙層、三層干砌墻框架模型，進(jìn)行水平位移加載，觀察和分析干砌墻框架的應(yīng)力分布等力學(xué)特性，研究組合情況不同，框墻受力時(shí)整體力學(xué)性能的變化，并對(duì)模型進(jìn)行相關(guān)參數(shù)的分析，研究結(jié)構(gòu)的力學(xué)發(fā)展性能和受力機(jī)理，從而達(dá)到優(yōu)化結(jié)構(gòu)的目的。
[Abstract]:As one of the most widely used building structures in China, the infilled wall frame structure has the advantages of flexible layout and large interior space.Steel frame has the advantages of convenient construction, high lateral stiffness and high ductility, so it has been applied more and more in practical engineering.As a new type of infilled wall structure, dry masonry infill wall has the advantages of good ductility, energy dissipation and small additional stiffness, and can effectively improve the lateral force of the structure.The study of dry-masonry infilled wall frame structure is of great significance to practical engineering.Based on the research of block size, wall size and Liang Zhu size, the mechanical properties of dry filled wall steel frame are studied in this paper, including the following aspects:The finite element software ANSYS is used to simulate the quasi-static test of the dry-filled wall frame. The finite element model is adjusted by the existing test data, and the rationality of the simulation model is verified by comparison.The mechanical properties of the frame structure of dry masonry wall are analyzed. It is concluded that dry masonry wall can effectively improve the overall lateral force and the stress distribution of the wall accords with the sliding of floor displacement. The theoretical formulas of lateral stiffness and horizontal lateral resistance of the frame are put forward.The load-displacement curve, stiffness degradation curve, hysteretic curve and skeleton curve of the structure under different working conditions were drawn by building blocks and wall models with different sizes.Based on the stress distribution and other mechanical properties of the structure, the effects of small, medium and large block size parameters and different high span ratio wall size parameters on the mechanical properties of steel frame dry masonry wall are systematically analyzed and studied.It is found that the ratio of height to span is the main factor affecting the stress mechanism of the structure.Through the comparison and analysis of three kinds of block model, it is found that the size of block has different effects on the stress distribution, stiffness degradation and lateral force contribution of the wall, and some conclusions are provided for the practical engineering.The frame model of dry masonry wall with different size and size is established, and the model is analyzed from the aspects of bearing capacity, stiffness, stress distribution and energy consumption of the structure.It is found that the size of wall and the ratio of Liang Zhu's moment of inertia have an important influence on the overall mechanical properties of dry masonry wall frame.Through the combination of fine single-story single-span dry masonry wall frame model, the double-layer and three-story dry masonry wall frame model is established, the horizontal displacement loading is carried out, and the stress distribution of the dry masonry wall frame is observed and analyzed.In order to optimize the structure, the mechanical properties of the frame wall are studied by analyzing the parameters of the model and studying the mechanical development performance and the mechanical mechanism of the structure.
【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】：2014
【分類號(hào)】：TU398;TU311

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