【摘要】：兩邊連接鋼板剪力墻其構(gòu)造特點(diǎn)為內(nèi)嵌鋼板只與邊框梁相連,與四邊連接鋼板墻相比,這樣的構(gòu)造特點(diǎn)消除了四邊連接內(nèi)嵌鋼板對(duì)柱產(chǎn)生的額外附加彎矩和軸力的不利影響,避免了框架柱的過(guò)早破壞;當(dāng)邊框柱為鋼管混凝土柱、型鋼混凝土柱等組合構(gòu)件時(shí),采用鋼板兩邊連接的方式可以解決內(nèi)嵌鋼板與邊框柱連接的施工困難。除此之外,在舊建筑的抗震加固中,采用兩邊連接的內(nèi)嵌鋼板也更為方便。本文首先提出兩邊連接鋼板剪力墻基于構(gòu)件承載能力的設(shè)計(jì)方法,通過(guò)設(shè)計(jì)算例和有限元模擬分析驗(yàn)證設(shè)計(jì)方法的正確性;在此基礎(chǔ)上,設(shè)計(jì)了9個(gè)不同層數(shù)、不同跨度的兩邊連接鋼板剪力墻結(jié)構(gòu),利用ABAQUS軟件建立有限元模型,進(jìn)行靜力推覆分析,研究層數(shù)和跨度對(duì)結(jié)構(gòu)性能的影響;最后設(shè)計(jì)了一個(gè)鋼框架-兩邊連接鋼板墻結(jié)構(gòu),對(duì)其進(jìn)行小震、中震和大震下的時(shí)程分析,考察結(jié)構(gòu)變形情況,基底剪力分布和破壞機(jī)理。以上研究結(jié)果表明,層數(shù)相同的模型,鋼板跨度越小,所需鋼板厚度就越大,導(dǎo)致邊緣構(gòu)件尺寸增大,使模型在鋼板屈服后仍有較大的承載能力,剛度下降較緩慢,但內(nèi)嵌鋼板抗剪能力發(fā)揮不充分,分配到的基底剪力相對(duì)較少,另外還會(huì)導(dǎo)致邊框柱軸力增大;層數(shù)越多,跨度越小,模型的彎曲作用就越明顯,導(dǎo)致結(jié)構(gòu)上部鋼板不易屈服,也使結(jié)構(gòu)不夠經(jīng)濟(jì)。在框架結(jié)構(gòu)中設(shè)置兩邊連接的鋼板可以顯著提高結(jié)構(gòu)剛度,減小結(jié)構(gòu)變形。設(shè)計(jì)合理的鋼框架-兩邊連接鋼板剪力墻結(jié)構(gòu)在小震作用下,構(gòu)件均保持彈性;中震作用下,鋼板屈服,邊緣框架保持彈性;大震作用下,鋼板屈服,梁端和柱腳進(jìn)入塑性,符合結(jié)構(gòu)抗震設(shè)計(jì)的性能目標(biāo)。
[Abstract]:The structural characteristics of the steel plate shear wall connected on both sides are that the embedded steel plate is only connected to the frame beam. Compared with the steel plate wall connected with the four sides, this kind of structural feature eliminates the adverse effect of the additional moment and axial force on the column caused by the steel plate embedded in the four sides. When the frame column is composed of concrete-filled steel tubular column and steel reinforced concrete column, the construction difficulty of the connection between the inlaid steel plate and the frame column can be solved by adopting the method of connecting the steel plate with the two sides of the steel plate. In addition, in the seismic reinforcement of the old building, it is more convenient to use the embedded steel plate connected both sides. In this paper, a design method based on the load-carrying capacity of steel plate shear wall is put forward, and the correctness of the design method is verified by the design example and finite element simulation analysis. On this basis, nine different layers are designed. The finite element model of steel plate shear wall structure with different span is established by Abaqus software, and the influence of story number and span on the structure performance is studied. Finally, a steel frame-steel plate wall structure is designed. The time-history analysis of small earthquake, moderate earthquake and large earthquake is carried out to investigate the deformation of the structure, the distribution of the base shear force and the failure mechanism. The above results show that the smaller the span of steel plate, the greater the thickness of steel plate, which leads to the increase of the size of edge member, which makes the model still have larger bearing capacity after the yield of steel plate, and the stiffness decreases slowly. However, the shear resistance of embedded steel plate is inadequate, the distribution of base shear force is relatively small, in addition, the axial force of frame column will increase; the more layers, the smaller the span, the more obvious the bending action of the model is, which leads to the steel plate of the upper part of the structure is not easy to yield. It also makes the structure uneconomical. The steel plate connected with both sides in the frame structure can significantly improve the stiffness of the structure and reduce the deformation of the structure. Reasonably designed steel frame-Shear wall structures with steel plates connected on both sides remain elastic under small earthquakes; steel plates yield under moderate earthquake, and frame edges remain elastic; under strong earthquakes, steel plates yield, and beam ends and column feet enter into plasticity. Accord with the performance target of seismic design of structure.
【學(xué)位授予單位】：廣州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TU973.16

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