本文關(guān)鍵詞：窗下墻對預制混凝土剪力墻結(jié)構(gòu)抗震性能影響的試驗研究　出處：《合肥工業(yè)大學》2017年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 填充墻 窗下墻 預制混凝土剪力墻 擬靜力試驗 抗震性能 數(shù)值模擬

【摘要】：在預制裝配式混凝土剪力墻結(jié)構(gòu)中,為進一步提高施工效率,往往采用將填充墻以及窗洞下方的墻與預制剪力墻作為一個整體共同在工廠內(nèi)進行預制的方法。此時,為了減輕結(jié)構(gòu)自重,并降低填充墻和窗下墻的強度和剛度,以減小其對主體結(jié)構(gòu)抗震性能的影響,可在填充墻和窗下墻內(nèi)設(shè)置一定厚度的減重材料(如泡沫塑料板等)。然而,采用這種構(gòu)造方式能否實現(xiàn)預制混凝土剪力墻結(jié)構(gòu)預期的抗震性能目標有待通過研究加以驗證。為研究填充量和窗下墻對預制混凝土剪力墻結(jié)構(gòu)抗震性能的影響,本文進行了一個單層帶填充墻預制混凝土剪力墻試件和兩個兩層帶窗下墻預制混凝土剪力墻試件的擬靜力試驗。兩個兩層帶窗下墻預制混凝土剪力墻試件的主要區(qū)別是二層窗下墻的高度。試驗結(jié)果表明:填充墻在與預制剪力墻作為整體預制后改變了結(jié)構(gòu)的受力性能,試件受力性能和破壞模式與聯(lián)肢剪力墻有較大差別,按照填充墻作為非結(jié)構(gòu)構(gòu)件計算模型不能真實反映試件的受力狀態(tài);兩個兩層帶窗下墻試件在初始受力階段,窗下墻與下層連梁作為一根整體連梁共同工作,此后二者逐漸脫開,形成兩根并列布置的雙連梁;兩個兩層帶窗下墻試件的破壞形態(tài)均為墻肢底部和雙連梁兩端形成塑性鉸,最終塑性鉸區(qū)混凝土被壓碎;窗下墻較高的試件W-2承載力和初始剛度均大于W-1,延性和耗能能力則小于W-1;預制剪力墻構(gòu)件中的窗下墻可顯著提高該類構(gòu)件的剛度、承載力和耗能能力,對帶窗下墻的預制剪力墻結(jié)構(gòu)進行抗震設(shè)計時應對窗下墻予以考慮。在試驗的基礎(chǔ)上,采用ABAQUS軟件對兩個兩層帶窗下墻開洞預制混凝土剪力墻試件W-1和W-2進行了數(shù)值模擬分析,分析結(jié)果與試驗結(jié)果對比表明該模型可以較好地反映窗下墻對預制剪力墻構(gòu)件抗震性能的影響,具有一定的可靠性。
[Abstract]:In the prefabricated concrete shear wall structure, in order to further improve the construction efficiency. It is often used to prefabricate the infilled wall and the wall under the window hole with the prefabricated shear wall as a whole in the factory. At this time, in order to reduce the structural weight. The strength and stiffness of the infilled wall and the wall under the window can be reduced to reduce the influence on the seismic performance of the main structure, and a certain thickness of weight-reducing materials (such as foam plastic board, etc.) can be set up in the infilled wall and the wall under the window. Whether we can achieve the expected seismic performance target of precast concrete shear wall structure by this construction method needs to be verified by research. To study the effect of filling quantity and wall under window on seismic performance of precast concrete shear wall structure. . In this paper, quasi static test of precast concrete shear wall specimen with single layer filled wall and two prefabricated concrete shear wall specimens with two two layer windows are carried out. The main results of precast concrete shear wall specimen with two layers with windows. The difference is the height of the wall under the two-story window. The test results show that:. The mechanical behavior of the structure is changed after the prefabricated wall and the prefabricated shear wall as a whole. The mechanical behavior and failure mode of the specimens are different from those of the shear walls, and the calculation model based on the infilled walls as non-structural members can not truly reflect the stress state of the specimens. In the initial loading stage, the wall under the window and the connecting beam under the window work together as a whole connecting beam, and then they are gradually separated and formed two parallel double connected beams. The failure patterns of the specimens under the two layers with windows are plastic hinge formed at the bottom of the wall limb and the two ends of the double beam, and the concrete in the plastic hinge zone is crushed. The higher W-2 bearing capacity and initial stiffness of the wall under the window are larger than W-1, but the ductility and energy dissipation capacity are smaller than W-1. The window wall in the precast shear wall members can significantly improve the stiffness, bearing capacity and energy dissipation capacity of this kind of members. In the seismic design of precast shear wall structures with windows, consideration should be given to the wall under windows. ABAQUS software was used to simulate and analyze the specimens W-1 and W-2 of precast concrete shear wall with two layers of windows. The comparison between the analysis results and the experimental results shows that the model can well reflect the influence of the wall under the window on the seismic performance of the precast shear wall members and has certain reliability.
【學位授予單位】：合肥工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU352.11;TU398.2

【參考文獻】

相關(guān)期刊論文 前10條

1 胡文博;翟希梅;姜洪斌;;預制裝配式鋼筋混凝土一體化剪力墻抗震性能研究及構(gòu)造方案優(yōu)化[J];建筑結(jié)構(gòu)學報;2016年08期

2 張家兵;;我國住宅產(chǎn)業(yè)化現(xiàn)狀與發(fā)展前景[J];墻材革新與建筑節(jié)能;2016年02期

3 焦安亮;張鵬;李永輝;支旭東;;環(huán)筋扣合錨接連接預制剪力墻抗震性能試驗研究[J];建筑結(jié)構(gòu)學報;2015年05期

4 張錫治;韓鵬;李義龍;王金成;凌光榮;;帶現(xiàn)澆暗柱齒槽式預制鋼筋混凝土剪力墻抗震性能試驗[J];建筑結(jié)構(gòu)學報;2014年08期

5 李國強;黃小坤;李然;李剛;劉tD;李哲龍;;帶底部后澆區(qū)的裝配式剪力墻水平拼縫性能試驗及有限元分析[J];建筑科學;2014年05期

6 聶建國;王宇航;;ABAQUS中混凝土本構(gòu)模型用于模擬結(jié)構(gòu)靜力行為的比較研究[J];工程力學;2013年04期

7 紀振鵬;劉群星;忻劍春;;日本住宅產(chǎn)業(yè)化特點及其啟示[J];住宅科技;2011年12期

8 張戰(zhàn)廷;劉宇鋒;;ABAQUS中的混凝土塑性損傷模型[J];建筑結(jié)構(gòu);2011年S2期

9 陸建忠;郭正興;董年才;朱張峰;;全預制裝配整體式剪力墻結(jié)構(gòu)抗震性能研究[J];施工技術(shù);2011年11期

10 錢稼茹;彭媛媛;張景明;秦珩;李建樹;劉國權(quán);趙豐東;李祿榮;;豎向鋼筋套筒漿錨連接的預制剪力墻抗震性能試驗[J];建筑結(jié)構(gòu);2011年02期

相關(guān)碩士學位論文 前1條

1 秦鵬;框架填充墻結(jié)構(gòu)的動力試驗與研究[D];湖南大學;2006年

，

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