本文關(guān)鍵詞： 窗間墻 混凝土塑性損傷模型 砌體本構(gòu) ABAQUS 應(yīng)力云圖 滯回曲線　出處：《太原理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：本文研究課題屬于國家自然基金項目(50978177)和山西省科技攻關(guān)項目,對一種典型的砌體墻試件進行了試驗及模擬分析,該墻體屬于常見的窗間墻,配有構(gòu)造柱以及水平鋼筋網(wǎng)片,通過對其進行擬靜力往復(fù)試驗以及ABAQUS有限元分析,對二者結(jié)果進行對比,探討模擬的適用性。首先,對砌體結(jié)構(gòu)的特點,通常的破壞、典型破壞模式,目前的研究現(xiàn)狀以及本文研究內(nèi)容進行了綜述,并闡述了本次試驗的試件設(shè)計制作,設(shè)備安裝加載,試件的破壞以及對應(yīng)的定量分析結(jié)果。最后得出墻體發(fā)生彎曲破壞,通過滯回曲線及骨架曲線可知試件具有良好的延性。之后,為建模準備,按上一章的試驗為基礎(chǔ),對試驗中涉及到的各個部件對應(yīng)的材料性能參數(shù)做出了定義,采用混凝土損傷塑性模型按照試驗標定的混凝土的各個參數(shù)計算出本構(gòu)模型需要的應(yīng)力、應(yīng)變以及損傷等數(shù)值�？偨Y(jié)具有代表性的砌體材料的本構(gòu)關(guān)系,包括經(jīng)驗型和損傷型,其中損傷型的本構(gòu)關(guān)系是在混凝土損傷塑性本構(gòu)的基礎(chǔ)上修改得到。對眾多的本構(gòu)關(guān)系進行對比驗證,得出利用砌體損傷本構(gòu)進行模擬是可行的。并求得本構(gòu)模型需要的相關(guān)數(shù)值。最后,通過ABAQUS有限元軟件在單向加載以及循環(huán)加載條件下對試驗墻體進行模擬。與試驗得到的相應(yīng)數(shù)據(jù)和結(jié)果進行定性以及定量對比,以驗證軟件分析的準確性以及適應(yīng)性。對比包括:應(yīng)力云圖、滯回曲線、骨架曲線以及延性等參數(shù)。
[Abstract]:This paper belongs to the National Natural Fund project 50978177) and Shanxi Province science and technology research project, a typical masonry wall test specimens were tested and simulated. The wall is a common window wall with structural columns and horizontal steel mesh. The results are compared by quasi-static reciprocating test and ABAQUS finite element analysis. First of all, the characteristics of masonry structure, the usual damage, the typical failure mode, the current research situation and the research content of this paper are summarized. The design and manufacture of the test piece, the installation and loading of the equipment, the failure of the specimen and the corresponding quantitative analysis results are described. Finally, the bending failure of the wall is obtained. According to the hysteretic curve and skeleton curve, the specimen has good ductility. Then, in order to prepare the model, according to the test in the previous chapter, the corresponding material performance parameters of each component involved in the test are defined. The damage plastic model of concrete is used to calculate the stress, strain and damage value of the constitutive model according to the parameters of concrete, and the constitutive relations of typical masonry materials are summarized. Including empirical and damage type, the damage constitutive relationship is modified on the basis of concrete damage plastic constitutive model. A lot of constitutive relations are compared and verified. It is concluded that it is feasible to simulate the damage of masonry by using the constitutive model. Finally, the relevant values of the constitutive model are obtained. The test wall was simulated by ABAQUS finite element software under unidirectional loading and cyclic loading, and compared qualitatively and quantitatively with the corresponding data and results obtained from the test. In order to verify the accuracy and adaptability of the software, the comparison includes: stress cloud map, hysteretic curve, skeleton curve and ductility.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU364

【參考文獻】

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1 董廣萍;楊衛(wèi)忠;樊o，

本文編號：1461855