本文選題：鋼框架-鋼板剪力墻 + 栓焊連接　； 參考：《西安建筑科技大學(xué)》2014年博士論文

【摘要】：鋼板剪力墻是一種有效的抗側(cè)力體系,具有初始側(cè)向剛度大,能量耗散能力好,延性大等優(yōu)點(diǎn)。鋼板剪力墻與鋼框架兩者可以組成鋼框架-鋼板剪力墻結(jié)構(gòu)雙重抗側(cè)力體系,目前,對(duì)該結(jié)構(gòu)體系的研究很不充分。本文針對(duì)栓焊連接的鋼框架-鋼板剪力墻結(jié)構(gòu)體系,對(duì)其抗震性能展開試驗(yàn)研究和理論分析,主要做了以下幾個(gè)方面的工作。按照我國(guó)相關(guān)設(shè)計(jì)規(guī)范,設(shè)計(jì)了一幢9層鋼框架-鋼板剪力墻結(jié)構(gòu),作為試驗(yàn)研究模型結(jié)構(gòu)設(shè)計(jì)的主要依據(jù)。并分析了鋼板墻的存在對(duì)框架梁、柱內(nèi)力分布的影響規(guī)律,以及雙重抗側(cè)力體系的有效性。選取原型結(jié)構(gòu)底部?jī)蓪又虚g跨的鋼板剪力墻,按幾何相似系數(shù)為1/3進(jìn)行縮尺試件設(shè)計(jì)。為了利用墻板屈曲后的強(qiáng)度,對(duì)縮尺試件的墻板厚度進(jìn)行適當(dāng)減小,并考慮不同墻板加勁形式,得到了3榀兩層單跨栓焊連接鋼框架-鋼板剪力墻結(jié)構(gòu)試件。通過水平低周往復(fù)加載試驗(yàn),重點(diǎn)研究試件的破壞過程、破壞模式、承載力、變形性能、滯回性能、耗能能力以及剛度退化規(guī)律等;對(duì)比分析薄鋼板、十字加勁板和斜加勁板對(duì)試件整體抗震性能的影響。通過對(duì)3個(gè)試件應(yīng)變測(cè)量結(jié)果的分析,計(jì)算了鋼框架和鋼板剪力墻各自承擔(dān)的水平荷載和傾覆力矩比例,梁端的軸力和彎矩,深入探討了鋼框架-鋼板剪力墻結(jié)構(gòu)作為雙重抗側(cè)力體系的受力機(jī)理。利用有限元分析軟件ABAQUS和SAP2000,分別采用殼單元和等效斜拉桿模型,對(duì)3個(gè)試件進(jìn)行有限元建模和分析,研究結(jié)構(gòu)的破壞過程、破壞形態(tài)、承載力和變形性能等,分析不同加勁形式對(duì)試件拉力帶的形成、塑性鉸的形成的影響。通過對(duì)比模擬結(jié)果與試驗(yàn)結(jié)果,驗(yàn)證了有限元建模和結(jié)果的有效性,為結(jié)構(gòu)抗震性能的進(jìn)一步分析提供依據(jù)�？紤]墻板屈曲后的強(qiáng)度,提出了基于剪力墻板承載力的鋼框架-鋼板剪力墻結(jié)構(gòu)抗震設(shè)計(jì)方法和步驟。該方法利用美國(guó)AISC的相關(guān)公式計(jì)算鋼板墻的抗剪承載力,基于等效斜拉桿模型,建立結(jié)構(gòu)的有限元模型,并根據(jù)非線性靜力分析得到的結(jié)構(gòu)破壞過程和破壞形態(tài),判斷鋼板剪力墻設(shè)計(jì)的合理性。通過算例分析,驗(yàn)證了所提方法的可行性和有效性�；谠隽縿�(dòng)力分析法,提出了計(jì)算鋼框架-鋼板剪力墻結(jié)構(gòu)體系的結(jié)構(gòu)影響系數(shù)和位移放大系數(shù)的計(jì)算方法和步驟。利用等效斜拉桿模型模擬鋼板墻,利用SAP2000軟件建立分析模型,依據(jù)一定的地震波選取方法,對(duì)6榀鋼框架-鋼板剪力墻結(jié)構(gòu)進(jìn)行了非線性時(shí)程分析。利用IDA分析結(jié)果,進(jìn)而求出結(jié)構(gòu)影響系數(shù)R和位移放大系數(shù)Cd。此外,還分析了結(jié)構(gòu)層數(shù)和結(jié)構(gòu)跨數(shù)對(duì)結(jié)構(gòu)影響系數(shù)和位移放大系數(shù)的影響規(guī)律,并給出了栓焊連接鋼框架-鋼板剪力墻結(jié)構(gòu)體系結(jié)構(gòu)影響系數(shù)和位移放大系數(shù)的建議值。
[Abstract]:Steel plate shear wall is an effective anti lateral force system, which has the advantages of large initial lateral stiffness, good energy dissipation capacity and large ductility. Both steel frame shear wall and steel frame can form a dual anti lateral force system of steel frame steel plate shear wall structure. At present, the research on this structure is not sufficient. This paper is aimed at the steel frame connected by bolt welding. The seismic performance of steel plate shear wall structure is studied and theoretical analysis is carried out. A 9 story steel frame steel plate shear wall structure is designed according to the relevant design standards of our country, which is the main basis for the design of the model structure of the experimental research model. The influence law of the internal force distribution and the effectiveness of the double side resistance system are selected. The steel plate shear walls with two layers in the bottom of the prototype structure are selected according to the geometric similarity coefficient of 1/3. In order to make use of the flexion strength of the wall panels, the wall thickness of the scale specimen is reduced properly, and the stiffening shape of the different wallboard is considered. 3 specimens of steel frame steel plate shear wall structures with two layers of single span bolt welding were obtained. The failure process, failure mode, bearing capacity, deformability, hysteretic behavior, energy dissipation capacity and stiffness degradation law of the specimens were emphatically studied by low level Zhou Wangfu loading test, and the test of steel plate, cross stiffening plate and stiffening plate were compared and analyzed. Through the analysis of the strain measurement results of 3 specimens, the ratio of horizontal load and overturning moment of steel frame and steel plate shear wall, the axial force and bending moment of Liang Duan are calculated, and the mechanical mechanism of steel frame steel plate shear wall structure as a dual anti lateral force system is deeply discussed. The finite element analysis is used. The software ABAQUS and SAP2000, using the shell element and the equivalent slant rod model respectively, make the finite element modeling and analysis of the 3 specimens, and study the failure process, the failure form, the bearing capacity and the deformation performance of the structure, and analyze the influence of different stiffening forms on the formation of the tensile force belt and the formation of the plastic hinge. It proves the validity of the finite element modeling and results, and provides the basis for further analysis of the structural seismic performance. Considering the strength of the wall plate after buckling, the seismic design method and steps of steel frame steel plate shear wall structure based on the bearing capacity of the shear wall plate are proposed. The method uses the relevant formula of AISC in the United States to calculate the shear bearing capacity of the steel plate wall. Based on the equivalent slanting rod model, the finite element model of the structure is established, and the structural failure process and failure form obtained by nonlinear static analysis are used to judge the rationality of the design of the steel plate shear wall. The feasibility and effectiveness of the proposed method are verified by an example. Based on the incremental dynamic analysis method, a calculating steel frame is proposed. The calculation method and steps of the structural influence coefficient and displacement magnification coefficient of the steel plate shear wall structure system are used to simulate the steel plate wall with the equivalent cable-stayed bar model and use the SAP2000 software to establish the analysis model. According to a certain seismic wave selection method, the nonlinear time history analysis is carried out on the 6 steel frame steel plate shear wall structure. The IDA analysis junction is used. The influence coefficient R and the displacement magnification coefficient Cd. are also obtained. The influence of structure layer number and structure span on the influence coefficient of structure and displacement magnification coefficient is also analyzed, and the suggested value of the influence coefficient and the displacement magnification coefficient of the steel frame steel plate shear wall structure with the bolt welding is given.

【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU352.11;TU391

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本文編號(hào)：1809454