本文選題：偏心支撐 + 鋼板剪力墻�。� 參考：《西安建筑科技大學》2013年碩士論文

【摘要】：偏心支撐鋼框架結(jié)構(gòu)體系在罕遇地震作用時，因耗能梁段的屈服而進入塑性，結(jié)構(gòu)表現(xiàn)出良好的延性和較強的能量耗能能力。大量的國內(nèi)外學者通過對各種類型的鋼板剪力墻試驗和理論分析研究表明：鋼板剪力墻是一種優(yōu)異的抗側(cè)力構(gòu)件，，具有較高的側(cè)向剛度、良好的延性、較強的能量耗能能力和較高的極限承載力等諸多優(yōu)點的。結(jié)合支撐及剪力墻兩種體系的特點，提出兩端連接偏心支撐鋼板剪力墻，并利用有限元程序研究分析，主要內(nèi)容如下： 對一榀足尺的兩端連接偏心支撐鋼板剪力墻(SBT模型)和兩端連接鋼板剪力墻(ST模型)，通過有限元軟件ANSYS進行循環(huán)加載的模擬。對比分析了二者的滯回曲線、骨架曲線、延性系數(shù)、剛度退化和能量耗散系數(shù)。得出有限元模擬的SBT模型在彈性階段和彈塑性階段的承載力要高于ST模型，表明SBT模型具有較好的塑性變形能力。 本文共選取了72個不同參數(shù)的模型，應用有限元軟件ANSYS，針對計算模型在不同高厚比、寬高比、柱子的彈性剛度和耗能梁段的長度下對兩端連接偏心支撐剪力墻的鋼板墻的彈性屈曲荷載和極限承載力的影響。通過分析得出以下結(jié)論：由于薄板和厚板的破壞時原理上的不同，導致高厚比變化對SBT模型的彈性屈曲和抗剪性能的影響顯著；寬高比變化對SBT模型的彈性屈曲和抗剪性能的影響較大；柱子的彈性剛度變化對SBT模型的彈性屈曲影響很小，但是對SBT模型的抗剪性能的影響卻較大；耗能梁段的長度變化對SBT模型的彈性屈曲和抗剪性能的影響不顯著。 本文在有限元理論分析的基礎上，得出了兩端連接偏心支撐鋼板剪力墻不僅具有很高的承載能力，而且還有很好的延性，對抗震設計具有有一定的指導意義，奠定了理論基礎。
[Abstract]:The eccentrically braced steel frame structure system is plastic due to the yield of the energy dissipation beam section under the rare earthquake. The structure shows good ductility and strong energy dissipation ability. A large number of domestic and foreign scholars through the various types of steel plate shear wall test and theoretical analysis show that steel plate shear wall is an excellent lateral force resistance member, with high lateral stiffness and good ductility. It has many advantages, such as strong energy dissipation ability and high ultimate bearing capacity. Combined with the characteristics of two kinds of systems of bracing and shear wall, the paper puts forward two ends connecting eccentrically braced steel plate shear wall, and makes use of finite element program to study and analyze, the main contents are as follows: In this paper, the cyclic loading simulation of a full-scale shear wall with eccentrically braced steel plate (SBT model) and St model with steel plate shear wall (St) is carried out by means of finite element software ANSYS. The hysteretic curve, skeleton curve, ductility coefficient, stiffness degradation and energy dissipation coefficient are compared and analyzed. It is concluded that the bearing capacity of the SBT model simulated by the finite element method is higher than that of the St model in the elastic stage and the elastoplastic stage, which indicates that the SBT model has better plastic deformation ability. In this paper, 72 models with different parameters are selected, and the finite element software ANSYS is used to calculate the ratio of height to thickness and width to height. The effects of the elastic stiffness of columns and the length of energy-dissipation beams on the elastic buckling load and ultimate bearing capacity of steel plate walls with eccentric braced shear walls at both ends. The conclusions are as follows: due to the difference in the principle of the failure of thin plate and thick plate, the effect of the ratio of high to thick on the elastic buckling and shear properties of SBT model is significant; The ratio of width to height has a great effect on the elastic buckling and shear resistance of SBT model, and the change of elastic stiffness of columns has little effect on the elastic buckling of SBT model, but has a great effect on the shear performance of SBT model. The effect of the length of the energy dissipation beam on the elastic buckling and shear properties of the SBT model is not significant. Based on the theoretical analysis of finite element method, it is concluded in this paper that the shear wall with eccentrically braced steel plate at both ends not only has high bearing capacity, but also has good ductility, which has certain guiding significance for seismic design and lays a theoretical foundation.
【學位授予單位】：西安建筑科技大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU313;TU391

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