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  本文選題：方鋼管混凝土框架 + 斜加勁薄鋼板剪力墻�。� 參考：《西安建筑科技大學》2013年碩士論文

【摘要】：鋼板剪力墻是一種經(jīng)濟有效的水平抗側(cè)力構(gòu)件。與傳統(tǒng)的鋼筋混凝土剪力墻相比，具有自重輕；減小基礎尺寸和地震作用；施工速度快；增加使用空間等優(yōu)點，在多、高層建筑中得到越來越廣泛的應用。非加勁薄鋼板剪力墻的滯回曲線在零位移附近存在“捏縮”現(xiàn)象，，且柱子要承受較大拉力帶作用，容易導致柱子過早破壞，為了解決上述問題，本文提出了方鋼管混凝土框架-斜加勁薄鋼板剪力墻。利用大型通用有限元軟件ABAQUS進行數(shù)值計算，結(jié)合理論分析，研究了方鋼管混凝土框架-斜加勁薄鋼板剪力墻的抗震性能。 AISC給出了鋼板剪力墻中梁剪力計算公式，但未考慮作用在梁上的拉力帶水平分量對梁產(chǎn)生的剪力作用。本文基于鋼板剪力墻理想破壞模式，分析了中間梁所受剪力，對AISC提出的剪力計算公式進行了修正，提出了中梁剪力近似計算公式，采用大型通用有限元軟件ABAQUS驗證了計算方法的可靠性。 通過理論分析和有限元計算，分析了鋼板剪力墻的受力過程，研究了剪力分配以及內(nèi)填板與周邊框架之間的相互作用。結(jié)果表明，內(nèi)填板在層間位移角0.17%時出現(xiàn)初始屈服，在層間位移角0.51%時基本完全屈服，周邊框架出現(xiàn)初始屈服。 利用有限元軟件對斜加勁鋼板墻的抗震性能進行了分析，研究了肋板剛度比、內(nèi)填板高厚比、軸壓比、柱子剛度等對方鋼管混凝土框架-斜加勁薄鋼板剪力墻滯回曲線和耗能性能的影響，提出了適合于方鋼管混凝土框架-斜加勁薄鋼板剪力墻的恢復力模型。 鋼板剪力墻的傳統(tǒng)設計方法假定由內(nèi)填板承擔所有的層間剪力，由于忽略邊緣構(gòu)件屈服時所提供的抵抗力，極限狀態(tài)下邊緣構(gòu)件將為鋼板墻提供超過水平荷載設計值的抵抗力。盡管這種設計方法對鋼板剪力墻抗震性能起著有利的作用，但目前尚沒有表達周邊框架所提供的超強抵抗力的通用方式。本文基于鋼板剪力墻塑性分析，提出了利用周邊框架屈服時所提供的抵抗力的設計過程；利用有限元軟件ABAQUS6.10進行了非線性分析。結(jié)果表明，本文所提出的鋼板剪力墻設計方法，既能滿足承載力的要求，而且具有良好的經(jīng)濟性。
[Abstract]:Steel plate shear wall is an economical and effective horizontal lateral force resistant member.Compared with the traditional reinforced concrete shear wall, it has many advantages, such as light weight, reducing foundation size and earthquake action, fast construction speed, increasing use space and so on. It has been more and more widely used in high-rise buildings.The hysteretic curve of non-stiffened thin steel plate shear wall has the phenomenon of "pinch" near zero displacement, and the column has to bear the action of larger tension band, which will easily lead to premature destruction of the column. In order to solve the above problem,In this paper, a concrete filled square steel tube frame-inclined stiffened steel sheet shear wall is presented.The seismic behavior of concrete-filled square steel tube frame and inclined stiffened steel plate shear wall is studied by using the finite element software ABAQUS and theoretical analysis.AISC gives the calculation formula of beam shear force in steel plate shear wall, but does not consider the shear force caused by the horizontal component of the tension band on the beam.In this paper, based on the ideal failure mode of steel plate shear wall, the shear force of the middle beam is analyzed, the formula of shear force calculated by AISC is modified, and the approximate formula of shear force of middle beam is put forward.The reliability of the method is verified by using a large universal finite element software ABAQUS.Through theoretical analysis and finite element calculation, the stress process of steel plate shear wall is analyzed, and the shear force distribution and the interaction between the inner filling plate and the surrounding frame are studied.The results show that the initial yield occurs at the interstory displacement angle of 0.17, the initial yield occurs at the interstory displacement angle of 0.51and the initial yield occurs at the peripheral frame.The seismic behavior of inclined stiffened steel plate wall is analyzed by using finite element software. The stiffness ratio of ribbed plate, the ratio of height to thickness of inner filling plate, the ratio of axial compression to axial compression are studied.The effects of column stiffness on hysteretic curve and energy dissipation performance of concrete filled steel tubular frame-oblique stiffened thin steel plate shear wall are discussed. A restoring force model suitable for square steel tube concrete frame and oblique stiffened thin steel plate shear wall is proposed.The traditional design method of steel plate shear wall assumes that all the interstory shear forces are borne by the inner fill. Because of ignoring the resistance provided by the edge member when yielding, the edge member in the limit state will provide the steel plate wall with resistance exceeding the design value of the horizontal load.Although this design method is beneficial to the seismic behavior of steel plate shear wall, there is no universal way to express the super resistance provided by the surrounding frame.Based on the plastic analysis of steel plate shear wall, this paper presents the design process of resistance provided by using the peripheral frame when yielding, and uses the finite element software ABAQUS6.10 to carry out nonlinear analysis.The results show that the design method of steel plate shear wall presented in this paper can not only meet the requirements of bearing capacity, but also have good economy.
【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】：TU398.9

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