本文關(guān)鍵詞： 自復(fù)位結(jié)構(gòu)體系 殘余變形控制原則 滯回矯正 新型加載制度 滯回曲線　出處：《蘇州科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著人們對(duì)性能抗震設(shè)計(jì)的關(guān)注,可恢復(fù)功能結(jié)構(gòu)體系的研究逐漸被重視。自復(fù)位結(jié)構(gòu)體系作為其中的一類,不僅可以有效地減小結(jié)構(gòu)震后的永久變形,還能夠?qū)⒂谰米冃蜗拗圃诳筛鼡Q的耗能器上,震后結(jié)構(gòu)僅需替換耗能器即可繼續(xù)使用,擁有很好的工程應(yīng)用前景。自復(fù)位結(jié)構(gòu)體系滯回曲線的理想形狀是雙旗幟形,反映出了該結(jié)構(gòu)體系嚴(yán)格的殘余變形過(guò)程控制原則。該原則導(dǎo)致的高抗側(cè)剛度與低滯回面積,不僅不利于結(jié)構(gòu)耗能能力的發(fā)展,還影響到柱截面尺寸的控制。因此有必要對(duì)自復(fù)位結(jié)構(gòu)體系殘余變形控制原則進(jìn)行改進(jìn)。在參考國(guó)內(nèi)外自復(fù)位結(jié)構(gòu)體系與殘余變形相關(guān)文獻(xiàn)的基礎(chǔ)上,文章首次提出滯回矯正猜想,并設(shè)計(jì)出與之匹配的新型加載制度。分別利用有限元軟件ABAQUS與OpenSEES建立自復(fù)位鋼板剪力墻單層與三層結(jié)構(gòu)模型,進(jìn)行低周往復(fù)模擬試驗(yàn)與地震彈塑性時(shí)程分析,采用新型加載制度與基準(zhǔn)加載制度的對(duì)比,對(duì)滯回矯正現(xiàn)象的有效性與客觀性進(jìn)行模擬驗(yàn)證,然后結(jié)合相關(guān)力學(xué)理論對(duì)滯回矯正原理進(jìn)行理論分析,研究表明:1)過(guò)度追求復(fù)位性能帶來(lái)的問(wèn)題是耗能能力不足或柱截面設(shè)計(jì)過(guò)大。因此,要求加載過(guò)程中每一循環(huán)殘余變形都能很小的雙旗幟形滯回曲線并不完美。2)新型加載制度可以很好地反映出滯回矯正現(xiàn)象,從而有效減小自復(fù)位結(jié)構(gòu)體系的最終殘余側(cè)移,提高了自復(fù)位結(jié)構(gòu)的抗震性能。因此,該加載制度適合在自復(fù)位結(jié)構(gòu)的研究和設(shè)計(jì)中考慮。3)滯回矯正現(xiàn)象在塑性金屬耗能器中可以有效的減小殘余側(cè)移,該現(xiàn)象出現(xiàn)的前提還與自復(fù)位結(jié)構(gòu)中要求主體結(jié)構(gòu)保持彈性的設(shè)計(jì)理念很好契合,適合用于自復(fù)位結(jié)構(gòu)體系的殘余變形控制原則研究。4)引入滯回矯正現(xiàn)象,參考國(guó)內(nèi)外研究成果,取消對(duì)自復(fù)位結(jié)構(gòu)體系殘余變形的過(guò)程控制。改進(jìn)后的殘余變形控制原則為基于性能目標(biāo)的層間位移控制:首先限制最大彈塑性層間位移角在2%以內(nèi),而后將震后的殘余位移角按照地震超越概率分為四個(gè)階段控制。
[Abstract]:With the attention to seismic design, the research of recoverable functional structure system has been paid more and more attention. As a kind of structure system, self-reset structure system can not only effectively reduce the permanent deformation of the structure after earthquake. It is also possible to limit permanent deformation to replaceable energy absorbers, which can continue to be used only by replacing the dampers after the earthquake. The ideal shape of hysteretic curve of self-reset structure system is double banners. It reflects the strict residual deformation process control principle of the structure system, which results in high lateral stiffness and low hysteretic area, which is not conducive to the development of the energy dissipation capacity of the structure. Therefore, it is necessary to improve the control principle of residual deformation of self-reset structural system. The hysteretic correction conjecture is proposed for the first time. A new loading system matching with it is designed. Using the finite element software ABAQUS and OpenSEES, the single-layer and three-story structure models of self-reset steel plate shear wall are established respectively. The low cycle reciprocating simulation test and seismic elastoplastic time history analysis were carried out. The validity and objectivity of hysteretic correction were verified by comparing the new loading system with the reference loading system. Then the hysteretic correction principle is analyzed with the relevant mechanics theory. The research shows that the problem caused by the excessive pursuit of reposition performance is insufficient energy consumption or the design of column section is too large. It is required that every residual deformation in the loading process can be very small double banner hysteretic curve is not perfect. 2) the new loading system can well reflect the hysteretic correction phenomenon. Therefore, the ultimate residual lateral shift of the self-reset structure system is effectively reduced, and the seismic performance of the self-reset structure is improved. The loading scheme is suitable for the study and design of the self-reset structure. 3) hysteretic correction can effectively reduce the residual lateral shift in the plastic metal dampers. The premise of this phenomenon is also in good agreement with the design concept of the main body structure which requires the flexibility of the main body structure, which is suitable for the study of residual deformation control principle of the self-reset structure system. 4) the hysteretic correction phenomenon is introduced. Reference to domestic and foreign research results. The improved residual deformation control principle is layer displacement control based on performance objectives: firstly, the maximum elastic-plastic interlayer displacement angle is limited to 2%. Then the residual displacement angle after the earthquake is divided into four stages according to the seismic transcendence probability.
【學(xué)位授予單位】：蘇州科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU352.11

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本文編號(hào)：1469069