本文選題：高層框架-剪力墻隔震結(jié)構(gòu) + 基于性能的隔震設(shè)計(jì)�。� 參考：《廣州大學(xué)》2017年碩士論文

【摘要】：框架-剪力墻結(jié)構(gòu)因具有較大的抗側(cè)剛度和承載力,且具有多道抗震防線被廣泛應(yīng)用于我國的高層建筑之中。隨著我國經(jīng)濟(jì)實(shí)力和隔震技術(shù)日益成熟,隔震技術(shù)也越來越多的被應(yīng)用到高層框剪結(jié)構(gòu)之中,對(duì)其進(jìn)行更深層次的理論與試驗(yàn)研究顯得尤為重要。本文針對(duì)高層框架-剪力墻隔震結(jié)構(gòu)設(shè)計(jì)理論與試驗(yàn)進(jìn)行了研究,主要研究內(nèi)容成果如下:(1)采用PKPM軟件建立了8度抗震設(shè)防烈度下的三種高層框架-剪力墻結(jié)構(gòu)抗震模型,它們分別是按照地震作用不降度,折減30%和降一度三種方法進(jìn)行抗震設(shè)計(jì),各項(xiàng)指標(biāo)均滿足規(guī)范要求。在此基礎(chǔ)上應(yīng)用ETABS有限元軟件對(duì)三種結(jié)構(gòu)進(jìn)行基于性能的隔震設(shè)計(jì)和非線性時(shí)程分析,對(duì)三種情況下隔震效果進(jìn)行了對(duì)比,結(jié)果表明基于性能的隔震設(shè)計(jì)能夠適應(yīng)高性能的抗震目標(biāo),逐步推動(dòng)隔震設(shè)防水準(zhǔn)的提高。(2)應(yīng)用ABAQUS軟件,分別對(duì)設(shè)防烈度地震、罕遇地震和極罕遇地震下高層框架-剪力墻抗震結(jié)構(gòu)和隔震結(jié)構(gòu)進(jìn)行動(dòng)力彈塑性分析,比較了內(nèi)力、層間位移角,并對(duì)損傷破壞以及耗能情況進(jìn)行了研究,找到了結(jié)構(gòu)的薄弱部位和損傷破壞機(jī)理。(3)選取兩條天然波和一條人工波,分別對(duì)一個(gè)4層的鋼框架-剪力墻抗震結(jié)構(gòu)和隔震結(jié)構(gòu)進(jìn)行了多遇地震,設(shè)防烈度地震和罕遇地震下的振動(dòng)臺(tái)試驗(yàn)研究,試驗(yàn)結(jié)果表明隔震減小了上部結(jié)構(gòu)的動(dòng)力響應(yīng);罕遇地震下隔震層位移是9.918mm,但尚未達(dá)到鉛芯橡膠支座100%剪切變形值,隔震層還可以進(jìn)行優(yōu)化設(shè)計(jì),并將試驗(yàn)值與MATLAB理論值進(jìn)行了對(duì)比,兩者相差不大,試驗(yàn)結(jié)果可靠。(4)提出了一種可應(yīng)用于結(jié)構(gòu)隔震設(shè)計(jì)的直接設(shè)計(jì)法,并給出了設(shè)計(jì)流程圖,介紹了隔震層等效阻尼比和隔震支座等效剛度的迭代方法,與現(xiàn)行的分部設(shè)計(jì)法進(jìn)行了比較,對(duì)比了內(nèi)力、位移,并統(tǒng)計(jì)了鋼筋用量。研究結(jié)果表明:該方法能夠滿足安全性和經(jīng)濟(jì)性的要求,將過去兩階段的分部設(shè)計(jì)變?yōu)橹苯釉O(shè)計(jì),一步到位,方便隔震設(shè)計(jì)的推廣,本文介紹的直接設(shè)計(jì)法是在編的《建筑隔震設(shè)計(jì)規(guī)范》建議采用的隔震設(shè)計(jì)方法。
[Abstract]:The frame-shear wall structure is widely used in high-rise buildings in our country because of its large lateral stiffness and bearing capacity, and has many seismic lines. With the increasing maturity of economic strength and isolation technology in our country, isolation technology has been applied to high-rise frame-shear structures more and more, and it is particularly important to carry out deeper theoretical and experimental research on them. In this paper, the design theory and experiment of high-rise frame-shear wall isolated structures are studied. The main research results are as follows: 1) using PKPM software, three seismic models of high-rise frame-shear wall structures with 8 degree seismic fortification are established. They are designed according to the three methods of seismic action, reduction by 30% and degree by one degree respectively, and all the indexes meet the requirements of the code. On this basis, the performance based isolation design and nonlinear time history analysis of three kinds of structures are carried out by using ETABS finite element software, and the results of isolation under three conditions are compared. The results show that the performance-based seismic isolation design can adapt to the high performance seismic target, and gradually promote the improvement of seismic isolation level. Dynamic elastic-plastic analysis of high-rise frame-shear wall seismic structure and isolated structure is carried out under rare and extremely rare earthquakes. The internal force, interstory displacement angle, damage, failure and energy dissipation are compared. The weak position and damage failure mechanism of the structure are found. (3) two natural waves and one artificial wave are selected, and a four-story steel frame-shear wall seismic structure and isolated structure are subjected to frequent earthquakes, respectively. The test results of shaking table under earthquake intensity and rare earthquake show that isolation reduces the dynamic response of superstructure, the displacement of isolation layer is 9.918 mm, but the shear deformation value of 100% shear of lead rubber bearing is not reached. The isolation layer can also be optimized and compared with the theoretical value of MATLAB. The test results are reliable, and a direct design method can be applied to the isolation design of the structure is proposed, and the design flowchart is given. This paper introduces the iterative method of equivalent damping ratio of isolation layer and equivalent stiffness of isolation support, compares it with the existing method of divisional design, compares the internal force and displacement, and counts the amount of steel bar. The research results show that this method can meet the requirements of safety and economy, and change the past two stages of divisional design into direct design, one step in place, and facilitate the spread of isolation design. The direct design method introduced in this paper is recommended by the Building isolation Design Code.
【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
【分類號(hào)】：TU973.16;TU352.12

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