本文關(guān)鍵詞：裝配式鋼框架—節(jié)能復(fù)合墻板結(jié)構(gòu)體系的滯回性能研究　出處：《山東大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 鋼框架 節(jié)能復(fù)合墻板 滯回性能 試驗研究 有限元分析

【摘要】：近年來,隨著住宅產(chǎn)業(yè)化的推行,鋼結(jié)構(gòu)作為裝配式住宅的優(yōu)良結(jié)構(gòu)形式,已被廣泛應(yīng)用于住宅建筑中。與鋼框架結(jié)構(gòu)配套的墻體材料的選用,也成為鋼結(jié)構(gòu)住宅推廣應(yīng)用的關(guān)鍵所在。在國家提倡綠色節(jié)能建筑等相關(guān)政策的引導(dǎo)下,新型節(jié)能復(fù)合墻體應(yīng)運(yùn)而生。這些墻體具有輕質(zhì)高強(qiáng)、保溫性能好等優(yōu)點,能滿足人們對安全、舒適、環(huán)保、節(jié)能等多功能的需求,是理想的節(jié)能建筑材料。國內(nèi)外大量研究發(fā)現(xiàn),墻板與鋼框架通過一定的方式連接,當(dāng)結(jié)構(gòu)體系承受水平地震作用時,墻板和鋼框架便作為一個整體共同抵抗水平力,墻板不僅對鋼框架結(jié)構(gòu)起到圍護(hù)和分隔作用,同時在結(jié)構(gòu)承受水平荷載作用時也參與了受力。墻板的存在加強(qiáng)了對鋼框架梁、柱變形的限制,兩者形成一種相互約束的結(jié)構(gòu)體系,有效的提高了結(jié)構(gòu)的抗側(cè)承載力與抗側(cè)剛度,也改善了結(jié)構(gòu)的抗震性能。 目前對帶有節(jié)能復(fù)合墻板鋼框架的抗震性能研究還剛剛起步,加上復(fù)合墻板的種類眾多,墻板與鋼框架的連接形式也有所差異,研究成果遠(yuǎn)未達(dá)到成熟的階段。本文結(jié)合住宅產(chǎn)業(yè)化與建筑節(jié)能的核心理念,提出了裝配式節(jié)能建筑結(jié)構(gòu)體系——“裝配式鋼框架—節(jié)能復(fù)合墻板結(jié)構(gòu)體系”。主體框架采用鋼結(jié)構(gòu)形式,梁柱節(jié)點采用半剛性端板連接,節(jié)能復(fù)合墻板采用預(yù)制鋼絲網(wǎng)架混凝土夾心板。墻板與鋼框架的連接方式采用點掛式連接。 本文通過開展低周往復(fù)荷載試驗,對該結(jié)構(gòu)體系的滯回性能進(jìn)行了深入研究,并利用大型通用有限元分析軟件ABAQUS進(jìn)行了數(shù)值模擬分析。最后結(jié)合試驗與有限元分析的相關(guān)結(jié)論,給出了該結(jié)構(gòu)體系的滯回性能參數(shù)及設(shè)計建議。所開展的主要工作和研究結(jié)論如下： (1)設(shè)計制作了6榀單層、單跨的縮尺模型試件,對其進(jìn)行了低周反復(fù)加載試驗。通過試驗系統(tǒng)研究了該結(jié)構(gòu)的破壞模式、滯回性能、剛度退化、變形及延性、耗能能力等。 (2)在試驗的基礎(chǔ)上,采用ABAQUS對該結(jié)構(gòu)體系進(jìn)行了建模與計算分析,提出了該結(jié)構(gòu)體系的有限元模型,鋼框架與墻板均采用三維殼單元,帶鋼板斜向支撐的墻板支撐部分采用復(fù)合材料層模擬,梁柱端板連接及墻板與鋼框架的連接均采用彈簧單元。并進(jìn)行了對比驗證分析與相關(guān)參數(shù)分析。 (3)試驗研究結(jié)果表明：該結(jié)構(gòu)具有良好的抗側(cè)力性能與抗震性能,“先墻板,后框架”的破壞模式對結(jié)構(gòu)抗震來說較為安全,且墻板的整體性能較好；帶鋼板斜向支撐的墻板能明顯提高結(jié)構(gòu)的承載能力和極限位移,其延性性能與耗能能力較好；陶�；炷蠅Π迤洹拜p質(zhì)高強(qiáng)”的特點有利于結(jié)構(gòu)的抗震；墻板與鋼框架梁柱連接的結(jié)構(gòu)形式其抗震性能更加優(yōu)越：該結(jié)構(gòu)體系的初始剛度為空框架結(jié)構(gòu)的2.2～2.9倍,結(jié)構(gòu)延性系數(shù)較高,在3.23～4.54范圍內(nèi),該結(jié)構(gòu)的肯有良好的牦能性能(能量耗散系數(shù)E在0.65左右)。 (4)有限元研究結(jié)果表明：數(shù)值模擬應(yīng)力應(yīng)變云圖以及結(jié)構(gòu)的變形與試驗結(jié)果較為一致,墻板要先于鋼框架達(dá)到其材料的極限強(qiáng)度；數(shù)模擬與試驗得到滯回曲線形式基本一致,兩者的骨架曲線也吻合較好,誤差在10%左右。墻板厚度對結(jié)構(gòu)整體的抗側(cè)剛度影響較小；墻板與鋼框架相對“柔性”的連接方式,即可以提高結(jié)構(gòu)的抗側(cè)剛度,又能保證結(jié)構(gòu)在較大水平位移時墻板仍有有效的承載能力。
[Abstract]:In recent years, with the development of housing industrialization, steel structure as a good kind of prefabricated structure, has been widely used in residential buildings. And the selection of wall materials of steel frame supporting, but also has become the key to the application of steel structure residence. In the country to promote green building policy under the guidance of, a new energy-saving composite wall emerged. These walls have high strength, good insulation performance and other advantages, can satisfy the safety, comfort, environmental protection, energy saving and other functional requirements, is the ideal energy-saving building materials. A large number of domestic and foreign research, wall panels and steel frame connected in a certain way, when the structure withstand level earthquake, wall panels and steel frame as a whole the level of resistance force, not only to the wall surrounding and separating effect of steel frame structure, while the structure under horizontal load When loading is applied, it also takes part in the force. The existence of wall panels strengthens the restriction on the deformation of steel frame beams and columns. They form a mutually constrained structural system, which effectively improves the lateral bearing capacity and lateral stiffness of the structure, and also improves the seismic performance of the structure.
The current research on seismic performance of steel frame with energy-saving composite panels has just started, with diverse types of composite panel, connection panel and steel frame are also different, research results are far from mature. Combining with the core concept of residential industrialization and building energy-saving, proposed assembled energy-saving building structure system "the assembly type steel frame composite panel structure system. The main frame adopts steel structure, beam column joints with semi-rigid end plate connection, energy-saving composite wall with precast concrete sandwich plate of steel wire net. Connection panel and steel frame adopts hanging type connection.
This paper through the low cyclic loading test, the structural hysteretic behavior is studied, and using the finite element analysis software ABAQUS numerical simulation analysis is carried out. Combined with the results of experiment and finite element analysis, the structure of the hysteretic performance parameters and design suggestions. Conclusion the main work and research are as follows:
(1) 6 pieces of single story and single span scale model specimens were designed and manufactured for low cyclic loading test. The failure mode, hysteretic behavior, stiffness degradation, deformation and ductility, energy dissipation capacity of the structure were studied through test system.
(2) on the basis of the experiment, ABAQUS is used to modeling and analysis of the structure of the system, put forward the system structure of the finite element model of steel frame and wall adopts three-dimensional shell element, steel plate with oblique wall supporting part supported by composite material layer simulation, connecting beam column end plate connections and siding with the steel frame using spring element. Analyzed and compared the verification and analysis of the relevant parameters.
(3) the experimental results show that this structure has the lateral force resisting performance and good anti-seismic performance, "the first wall failure mode after the framework of seismic safety for more, and better overall performance of wall plate; the inclined support plates can significantly improve the bearing capacity and ultimate displacement of the structure. The ductility and energy dissipation capacity of ceramsite concrete wall is better; the" lightweight "features is conducive to structural seismic structure; slab and beam column connections of steel frame and its seismic performance is more superior: the initial stiffness of the structure system for space frame structure of 2.2 ~ 2.9 times higher ductility coefficient at 3.23 ~ 4.54 range, the structure would have good performance of Yak (energy dissipation coefficient E is about 0.65).
(4) the results show that the finite element numerical simulation of stress strain nephogram and deformation of the structure are consistent with the experimental results, the ultimate strength of the first wall in the steel frame to the material; the number of simulation and test hysteretic curve skeleton curve form is basically the same, both are also in good agreement with the error, smaller at around 10%. Effect of lateral wall thickness on the structure of the overall stiffness; wall and steel frame relative to "flexible" connections, which can improve the lateral stiffness of the structure, but also can ensure the structure wall in the larger horizontal displacement is carrying capacity effectively.

【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU398

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