本文關(guān)鍵詞：多層鋼板剪力墻自復(fù)位結(jié)構(gòu)性能研究　出處：《蘇州科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 自復(fù)位 蝴蝶形鋼板 有限元 滯回性能 能量耗散系數(shù) 剛度 延性

【摘要】：蝴蝶形鋼板剪力墻自復(fù)位結(jié)構(gòu)是近幾年發(fā)展起來的一種新型抗側(cè)力結(jié)構(gòu),它將梁柱自復(fù)位節(jié)點(diǎn)技術(shù)和蝴蝶形鋼板剪力墻技術(shù)結(jié)合,使用常規(guī)鋼材和預(yù)應(yīng)力鋼絞線,具有優(yōu)越的抗震性能,且能有效控制結(jié)構(gòu)的殘余變形,降低震后修復(fù)成本,越來越受到國內(nèi)外學(xué)者的關(guān)注。為了進(jìn)一步明確結(jié)構(gòu)的性能,本文先從結(jié)構(gòu)的性能目標(biāo)出發(fā),闡述性能目標(biāo)的設(shè)定,接著,從理論上分析了結(jié)構(gòu)的傳力路徑和破壞機(jī)理,介紹結(jié)構(gòu)剛度計(jì)算和理論設(shè)計(jì)方法。運(yùn)用經(jīng)驗(yàn)證有效的有限元軟件對鋼板高厚比、高寬比、柱剛度系數(shù)、初始預(yù)拉力、框架跨高比和鋼板豎向錯位布置展開研究,從耗能、能量耗散系數(shù)、剛度退化、延性系數(shù)和自復(fù)位性能等方面系統(tǒng)分析了各參數(shù)對結(jié)構(gòu)性能的影響。得到了一些有益的結(jié)論:(1)蝴蝶形鋼板剪力墻自復(fù)位結(jié)構(gòu)在當(dāng)前結(jié)構(gòu)抗震領(lǐng)域和新型結(jié)構(gòu)中具有代表性和前瞻性。(2)運(yùn)用有限元軟件數(shù)值模擬蝴蝶形鋼板剪力墻自復(fù)位結(jié)構(gòu)具有可行性和有效性。從理論上分析蝴蝶形鋼板剪力墻自復(fù)位結(jié)構(gòu)的耗能、破壞機(jī)理和推導(dǎo)結(jié)構(gòu)的剛度計(jì)算方法,對優(yōu)化蝴蝶形鋼板剪力墻自復(fù)位結(jié)構(gòu)具有指導(dǎo)意義。(3)設(shè)計(jì)合理的蝴蝶形鋼板剪力墻自復(fù)位結(jié)構(gòu)抗震性能優(yōu)越,殘余變形可控。設(shè)計(jì)時鋼板高厚比宜控制在300左右;高寬比控制在1.25左右;框架柱應(yīng)保證在大震作用下保持彈性,但框架柱過大不利于發(fā)揮結(jié)構(gòu)的整體抗震性能;預(yù)應(yīng)力鋼絞線初始預(yù)拉力不宜過大,可按理論公式估算,并使自復(fù)位節(jié)點(diǎn)在小震作用下脫開。減小框架的跨高比將小幅提高結(jié)構(gòu)的強(qiáng)度,結(jié)構(gòu)剛度、延性和自復(fù)位性能趨同。蝴蝶形鋼板錯位布置時,結(jié)構(gòu)滯回性能穩(wěn)定,有利于滿足建筑空間布置的要求,鋼板同向錯位布置和反向錯位布置各有利弊,須加強(qiáng)構(gòu)造。
[Abstract]:The butterfly shaped steel plate shear wall self centering structure is a new type of anti lateral force structure developed in recent years, it will be Liang Zhu self centering connection technology and the butterfly shaped steel plate shear wall technology, the use of conventional steel and prestressed steel strand, with excellent seismic performance, and can effectively control the residual deformation of the structure, reduce the earthquake repair costs, more and more attention of domestic and foreign scholars. In order to further clarify the performance of the structure, this paper first from the performance goal structure of this performance target setting, then the force transmission path and the failure mechanism of structure is analyzed theoretically, the structure stiffness calculation theory and design method. By using finite element method software validation of plate height to thickness ratio, aspect ratio, column stiffness coefficient, initial prestress, frame span and plate vertical dislocation arrangement study, from energy consumption, the energy dissipation coefficient, stiffness of the back , ductility coefficient and self reduction performance, analyzed the influence of parameters on structural properties. Some useful conclusions are obtained: (1) the butterfly shaped steel plate shear wall self resetting structure in the current seismic field and new structure of representative and prospective. (2) by using the finite element numerical simulation software the butterfly shaped steel plate shear wall self centering structure is feasible and effective. Energy consumption analysis of the butterfly shaped steel plate shear wall self centering structure theoretically, damage stiffness calculation method and mechanism of derivation structure, optimization of the butterfly shaped steel plate shear wall structure with self reset significance. (3) the butterfly shaped steel plate shear wall design since the seismic reduction structure of superior performance, residual deformation control. Design of plate height to thickness ratio should be controlled at around 300; the ratio of height to width is controlled at about 1.25; the frame column should ensure to maintain flexibility in the large earthquake, but the box Frame column is too large is not conducive to the overall structure of the seismic performance of prestressed steel strand; initial tensile force should not be too large, according to the theoretical formula to estimate, and from self centering connection under small earthquakes. The decrease of the span depth ratio framework will be slightly improve the structural strength, structural stiffness, ductility and self reduction performance of convergence the butterfly shaped plate. The dislocation arrangement, structure stable hysteretic performance, to meet the requirements of architectural space layout, the same plate dislocation arrangement and reverse dislocation arrangement have advantages and disadvantages, to strengthen the structure.

【學(xué)位授予單位】：蘇州科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU398.2

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