高溫下鋼化玻璃承重樓板抗彎性能研究
發(fā)布時間：2019-02-15 09:42
【摘要】：跟隨著我國不斷前進(jìn)的建設(shè)步伐,玻璃承重結(jié)構(gòu)也開始普遍應(yīng)用于現(xiàn)代建筑中,但目前我國對玻璃承重構(gòu)件的研究較少,火災(zāi)下玻璃承重構(gòu)件的承重性能研究就顯得更為匱乏,火災(zāi)下玻璃承重構(gòu)件的安全性是亟需解決的首要問題。本文針對建筑中鋼化玻璃樓板的抗火性能進(jìn)行部分研究,主要內(nèi)容包括:(1)通過閱讀和整理國內(nèi)外對玻璃、鋼化玻璃、鋼化玻璃構(gòu)件、鋼化玻璃樓板研究的相關(guān)文獻(xiàn),分析了鋼化玻璃的研究和使用現(xiàn)狀,簡要介紹了玻璃的力學(xué)性能和熱工性能。(2)理論聯(lián)系實(shí)際,通過實(shí)體的過火試驗(yàn)及ABAQUS有限元數(shù)值模擬,檢驗(yàn)了某特定設(shè)計(jì)方式的防火玻璃和鋼化玻璃組合樓板在標(biāo)準(zhǔn)升溫條件下的抗火性能。在試驗(yàn)和模擬中,鋼化玻璃樓板均滿足設(shè)計(jì)要求的半小時耐火極限,為實(shí)際項(xiàng)目的實(shí)施提供了依據(jù)和參考。(3)本文重點(diǎn)通過穩(wěn)態(tài)加載試驗(yàn)研究了不同厚度鋼化玻璃在常溫到300℃之間彎曲強(qiáng)度的變化。試驗(yàn)選取了8mm和12mm厚度的鋼化玻璃試件(共150個),測試了其在不同溫度段下(25℃、60℃、100℃、200℃、300℃)的抗彎強(qiáng)度、撓度、應(yīng)變的變化。通過數(shù)據(jù)分析得到不同厚度鋼化玻璃在溫度升高后強(qiáng)度的降低系數(shù),為鋼化玻璃的抗火研究提供了參考。本文的研究成果將為火災(zāi)下玻璃承重結(jié)構(gòu)的防火性能設(shè)計(jì)提供借鑒,這將促進(jìn)玻璃承重構(gòu)件在現(xiàn)代結(jié)構(gòu)中的應(yīng)用,并為相關(guān)工程提供技術(shù)支持,為未來相關(guān)規(guī)范的制定提供基礎(chǔ)數(shù)據(jù)與經(jīng)驗(yàn)。文章最后對鋼化玻璃結(jié)構(gòu)研究趨勢進(jìn)行了展望,提出了玻璃結(jié)構(gòu)抗火研究尚需解決的問題。
[Abstract]:With the development of our country, glass load-bearing structure has been widely used in modern architecture. However, there are few researches on glass load-bearing components in our country at present, so the research on the load-bearing performance of glass load-bearing members under fire is even more scarce. The safety of glass bearing components under fire is the most important problem to be solved. The main contents of this paper are as follows: (1) through reading and finishing the domestic and foreign literature on glass, tempered glass components, tempered glass floor, The present research and application of toughened glass are analyzed, and the mechanical and thermal properties of the glass are briefly introduced. (2) through the over-fire test of solid and ABAQUS finite element numerical simulation, The fire resistance of fire proof glass and toughened glass composite floor with a certain design method was tested under the standard temperature rising condition. In the test and simulation, the tempered glass floor meets the design requirement of the half-hour fire resistance limit, It provides the basis and reference for the implementation of practical projects. (3) the change of bending strength of tempered glass with different thickness between room temperature and 300 鈩，
本文編號：2423206
[Abstract]:With the development of our country, glass load-bearing structure has been widely used in modern architecture. However, there are few researches on glass load-bearing components in our country at present, so the research on the load-bearing performance of glass load-bearing members under fire is even more scarce. The safety of glass bearing components under fire is the most important problem to be solved. The main contents of this paper are as follows: (1) through reading and finishing the domestic and foreign literature on glass, tempered glass components, tempered glass floor, The present research and application of toughened glass are analyzed, and the mechanical and thermal properties of the glass are briefly introduced. (2) through the over-fire test of solid and ABAQUS finite element numerical simulation, The fire resistance of fire proof glass and toughened glass composite floor with a certain design method was tested under the standard temperature rising condition. In the test and simulation, the tempered glass floor meets the design requirement of the half-hour fire resistance limit, It provides the basis and reference for the implementation of practical projects. (3) the change of bending strength of tempered glass with different thickness between room temperature and 300 鈩，
本文編號：2423206
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