本文選題：裝配式結(jié)構(gòu) + 組合結(jié)構(gòu)��； 參考：《華北理工大學(xué)》2017年碩士論文

【摘要】：裝配式鋼-混凝土組合剪力墻結(jié)構(gòu)是一種新型結(jié)構(gòu)體系,存在大量的節(jié)點(diǎn)、水平接縫、豎向接縫連接,這些接縫的受力性能直接決定結(jié)構(gòu)的整體性能。目前國(guó)內(nèi)相關(guān)研究多集中在試驗(yàn)研究,按現(xiàn)有規(guī)范“等同現(xiàn)澆”理念進(jìn)行設(shè)計(jì),然而在數(shù)值計(jì)算方面通常未考慮“裝配”的因素,與現(xiàn)澆建模方法一致進(jìn)行分析。文中建立裝配式結(jié)構(gòu)的分段纖維模型,通過(guò)截面有效面積減少、粘結(jié)滑移等參數(shù)變化,考慮“裝配”因素對(duì)結(jié)構(gòu)抗震性能分析的影響,基于Open SEES計(jì)算平臺(tái)和現(xiàn)有試驗(yàn)研究,校核和確認(rèn)模型關(guān)鍵參數(shù),并進(jìn)行參數(shù)分析,進(jìn)一步拓寬模型的適用范圍和驗(yàn)證其合理性。1)選取GB50010-2010、JGJ1-2014、JGJ1-91、DB11/1003—2013、DB23/T-2010與美國(guó)、歐洲等國(guó)外規(guī)范,結(jié)合實(shí)例,對(duì)比研究規(guī)范中關(guān)于裝配式混凝土結(jié)構(gòu)水平接縫承載力計(jì)算方法的異同,結(jié)果表明各國(guó)規(guī)范計(jì)算結(jié)果存在不同程度差異,驗(yàn)證了裝配式混凝土結(jié)構(gòu)設(shè)計(jì)方法與數(shù)值分析中,考慮接縫存在、粘結(jié)滑移及構(gòu)造措施等因素影響的必要性。2)建立裝配式鋼筋混凝土剪力墻結(jié)構(gòu)的分段纖維模型(Multi-section Fiber Model,即MFM),結(jié)合5片裝配式混凝土剪力墻構(gòu)件試驗(yàn)研究,進(jìn)行數(shù)值分析研究,將試驗(yàn)結(jié)果與數(shù)值分析結(jié)果進(jìn)行對(duì)比分析,驗(yàn)證模型及關(guān)鍵參數(shù)的合理性。為考慮“裝配”的因素,通過(guò)鋼筋粘結(jié)滑移、剪切效應(yīng)以及約束混凝土面積減少等方面予以參數(shù)研究,結(jié)果表明考慮參數(shù)對(duì)鋼筋混凝土剪力墻結(jié)構(gòu)的數(shù)值分析結(jié)果影響較小,數(shù)值分析時(shí)可不考慮。3)基于OpenSEES有限元分析計(jì)算平臺(tái),建立裝配式鋼管混凝土組合剪力墻結(jié)構(gòu)的分段纖維模型,分別基于足尺與考慮豎縫影響的試驗(yàn)研究,校核和確認(rèn)模型的關(guān)鍵參數(shù),試驗(yàn)結(jié)果與數(shù)值結(jié)果吻合較好,驗(yàn)證模型及關(guān)鍵參數(shù)的合理性。通過(guò)數(shù)值分析,結(jié)果表明考慮鋼筋粘結(jié)滑移、剪切效應(yīng)以及約束混凝土面積減少等參數(shù)對(duì)鋼管混凝土組合剪力墻結(jié)構(gòu)的數(shù)值分析結(jié)果影響較小,數(shù)值分析時(shí)可不考慮。
[Abstract]:The fabricated steel-concrete composite shear wall structure is a new type of structural system, which has a large number of joints, horizontal joints and vertical joints. The mechanical properties of these joints directly determine the overall performance of the structure.At present, most domestic researches focus on experimental research and design according to the concept of "equal cast-in-place" in existing codes. However, the "assembly" factor is usually not considered in numerical calculation, which is consistent with the cast-in-place modeling method.In this paper, the segmented fiber model of assembly structure is established. Through the change of effective area of section, bond slip and other parameters, considering the influence of "assembly" factors on seismic performance analysis of the structure, based on the Open SEES calculation platform and the existing experimental research.Check and confirm the key parameters of the model, and carry out parameter analysis, further widen the applicable scope of the model and verify its rationality. 1) choose GB50010-2010 / JGJ1-2014 / JGJ1-91 / DB11 / 1003-2013 DB23 / T-2010 and other foreign norms such as the United States, Europe, etc.The differences and similarities of calculation methods of horizontal joint bearing capacity of prefabricated concrete structures in the code are compared. The results show that the calculation results of each country are different to different degrees, which verifies the design method and numerical analysis of prefabricated concrete structures.Considering the existence of joints, the necessity of bond-slip and structural measures, etc. (2) to establish the segmented fiber model of prefabricated reinforced concrete shear wall structure, which is called Multi-section Fiber Model, combining with the experimental study of 5 fabricated concrete shear wall members.The results of numerical analysis are compared with the results of numerical analysis to verify the rationality of the model and the key parameters.In order to consider the factors of "assembly", the parameters are studied in the aspects of bond slip, shear effect and the reduction of confined concrete area. The results show that the effect of considering parameters on the numerical analysis results of reinforced concrete shear wall structures is relatively small.In numerical analysis, based on OpenSEES finite element analysis and calculation platform, the segmented fiber model of composite shear wall structure of concrete-filled steel tubular (CFST) is established, which is based on full-scale and experimental research considering the effect of vertical joint, respectively.The key parameters of the model are checked and confirmed. The experimental results agree well with the numerical results, and the rationality of the model and the key parameters is verified.Through numerical analysis, the results show that the influence of the parameters such as bond slip of steel bar, shear effect and reduction of confined concrete area on the numerical results of CFST composite shear wall structure is small, which can not be taken into account in numerical analysis.
【學(xué)位授予單位】：華北理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TU398.2

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