發(fā)布時(shí)間：2018-05-17 11:58

  本文選題：保溫功能 + 圍護(hù)結(jié)構(gòu)�。� 參考：《天津大學(xué)》2014年碩士論文

【摘要】：在住宅建設(shè)的全過程中,時(shí)時(shí)刻刻涉及到環(huán)保的問題。石膏是一種綠色材料,玻璃纖維石膏速成空心墻板最早由澳大利亞生產(chǎn),在工廠生產(chǎn)出空心墻板,到現(xiàn)場在空心處澆注混凝土作為承重結(jié)構(gòu),我國曾對此種構(gòu)件抗震性能進(jìn)行了大量的試驗(yàn)研究,對其結(jié)構(gòu)形式等進(jìn)行了相應(yīng)的理論分析,而這些研究均是在單板的前提下進(jìn)行的。為了研究新開發(fā)的具有保溫功能的混凝土密柱石膏外墻板抗震性能,本文對3塊外墻板進(jìn)行了低周反復(fù)荷載試驗(yàn)。分析比較了主體石膏板與具有圍護(hù)功能的石膏單板的受力特性及圍護(hù)功能石膏板的參與度;分析了構(gòu)件的抗剪承載能力、變形能力、破壞特征、構(gòu)件的延性、耗能能力等受力特性,表明該新型板材與一般鋼筋混凝土試件的塑性變形能力相當(dāng),且圍護(hù)功能的石膏單板與聚苯板一起有一定的耗能作用。通過試驗(yàn)及數(shù)據(jù)分析,得出具有保溫功能的混凝土密柱石膏外墻板具有良好的抗震性能,為此板應(yīng)用于實(shí)際工程提供了依據(jù)。最后,本文利用非線性有限元方法對結(jié)構(gòu)進(jìn)行力學(xué)分析,建立了切實(shí)有效的力學(xué)分析模型,通過建立適用于反復(fù)荷載作用下的具有保溫功能的混凝土密柱石膏外墻板的本構(gòu)關(guān)系,考慮材料非線性和剛度退化等因素的影響,對構(gòu)件在低周反復(fù)荷載作用下受力性能進(jìn)行了有限元分析,計(jì)算所得結(jié)果與試驗(yàn)結(jié)果吻合較好,滿足工程精度要求,為今后對各種結(jié)構(gòu)尺寸的具有保溫功能的混凝土密柱石膏外墻板進(jìn)行計(jì)算機(jī)模擬試驗(yàn)提供了參考依據(jù)。
[Abstract]:In the whole process of housing construction, environmental protection is always involved. Gypsum is a kind of green material. Glass fiber gypsum hollow wall board was first produced in Australia. Hollow wall board was produced in the factory, and concrete was poured into the hollow place as load-bearing structure. In China, a large number of experimental studies have been carried out on the seismic behavior of this kind of members, and corresponding theoretical analysis has been carried out on the structural forms of such members, all of which have been carried out under the premise of veneer. In order to study the aseismic performance of the newly developed concrete dense column gypsum outer wall slab with thermal insulation function, the low cycle cyclic loading tests were carried out on three external wall panels in this paper. The mechanical characteristics of the main gypsum board and the gypsum veneer with envelope function are analyzed and compared, and the participation degree of the gypsum board is analyzed, and the shear bearing capacity, deformation capacity, failure characteristics and ductility of the component are analyzed. The mechanical properties such as energy dissipation capacity show that the plastic deformation capacity of the new type of plate is equivalent to that of the normal reinforced concrete specimen, and that the gypsum veneer with envelope function has a certain energy dissipation effect with polystyrene board. Through the test and data analysis, it is concluded that the concrete dense column gypsum outer wall slab with insulation function has good seismic performance, which provides the basis for the application of the board in practical engineering. Finally, the nonlinear finite element method is used to analyze the mechanics of the structure, and a practical and effective mechanical analysis model is established. By establishing the constitutive relation of concrete dense column gypsum outer wall slab which is suitable for repeated load, considering the influence of material nonlinearity and stiffness degradation, etc. The finite element analysis of the mechanical behavior of the members under low cyclic loading is carried out. The calculated results are in good agreement with the experimental results and meet the requirements of engineering precision. The results provide a reference for the computer simulation test of concrete dense column gypsum wall panels with various structural sizes.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU398

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