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(1 清華大學(xué)土木工程系, 北京 100084; 2 東南大學(xué)土木工程學(xué)院, 南京 210096; 3 華中科技大學(xué)土木與水利工程學(xué)院, 武漢 430074; 4 中國建筑設(shè)計(jì)研究院有限公司, 北京 100044;5 江蘇湯臣新材料科技有限公司, 泰興 225542)
摘要: 有機(jī)玻璃具有質(zhì)量輕、無自爆、可本體聚合等優(yōu)點(diǎn),在建筑領(lǐng)域有廣泛的應(yīng)用前景. 為了研究結(jié)構(gòu)用有機(jī)玻璃的基本物理性能和材料力學(xué)性能,對不同環(huán)境溫度下結(jié)構(gòu)有機(jī)玻璃拉伸性能、壓縮性能、平面應(yīng)變斷裂韌性、熱膨脹系數(shù)和硬度進(jìn)行了系統(tǒng)的試驗(yàn)研究,測得了結(jié)構(gòu)有機(jī)玻璃的彈性模量、抗拉強(qiáng)度、泊松比、抗壓強(qiáng)度、斷裂韌性、熱膨脹系數(shù)、硬度性能參數(shù)等指標(biāo),研究了以上參數(shù)隨溫度的變化規(guī)律. 研究表明:在-20~60℃內(nèi),溫度升高時(shí),有機(jī)玻璃材料的彈性模量、抗拉強(qiáng)度、抗壓強(qiáng)度、斷裂韌性、硬度均降低,熱膨脹系數(shù)增大,泊松比的變化不明顯. 最后,介紹了有機(jī)玻璃在建筑和結(jié)構(gòu)領(lǐng)域的工程應(yīng)用. 研究成果可為結(jié)構(gòu)有機(jī)玻璃應(yīng)用及相關(guān)規(guī)范編制提供參考.
關(guān)鍵詞: 有機(jī)玻璃; 力學(xué)性能; 斷裂韌性; 熱膨脹系數(shù); 硬度
中圖分類號:TU532 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2023)08-0001-06
DOI:10. 19701 / j. jzjg. ZJ230001
Mechanical properties and engineering application of structural acrylic
WANG Yuanqing1, ZHENG Baofeng2, SHU Ganping2, WANG Zongyi3, SUN Zhou4, TANG Yuesheng5
(1 School of Civil Engineering, Tsinghua University, Beijing 100084, China; 2 School of Civil Engineering,Southeast University, Nanjing 210096, China; 3 School of Civil and Hydraulic Engineering, Huazhong Universityof Science and Technology, Wuhan 430074, China; 4 China Architecture Design and Research Institute Co. , Ltd. ,Beijing 100044, China; 5 Jiangsu Donchamp New Materials Technology Co. , Ltd. , Taixing 225542, China)
Abstract: Acrylic has the advantages of light weight, no self-explosion and bulk polymerization, which has broadapplication prospects in building constructions. In order to study the basic physical properties and mechanical properties ofthe material, the tensile behavior, compression behavior, plan strain fracture toughness, thermal expansion coefficient, andhardness of structural acrylic at various ambient temperatures were systematically tested and studied. The elastic modulus,tensile strength, Poisson’ s ratio, compressive strength, fracture toughness, thermal expansion coefficient, hardness ofstructural acrylic, and the changing laws of the above parameters with temperature were studied. The results show that, inthe range from -20 to 60 ℃ , when increasing the temperature, the elastic modulus, tensile strength, compressive strength,fracture toughness, and hardness decrease, while the thermal expansion coefficient increases. The variation of Poisson’ sratio is not pronounced. At last, the applications of acrylic in architectural and structural engineering were introduced. Theresearch results can provide references for the application of structural acrylic and the preparation of relevant specifications.
Keywords:acrylic; mechanical properties; fracture toughness; thermal expansion coefficient; hardness
∗住房和城鄉(xiāng)建設(shè)部研究開發(fā)項(xiàng)目“有機(jī)玻璃在建筑與結(jié)構(gòu)領(lǐng)域的應(yīng)用技術(shù)研究” (K20200452),國家自然科學(xué)基金(52208169).
第一作者:王元清,博士,教授,主要從事鋼結(jié)構(gòu)、新材料結(jié)構(gòu)研究,Email: wang-yq@ mail. tsinghua. edu. cn.
[引用本文] 王元清,鄭寶鋒,舒贛平,等. 結(jié)構(gòu)用有機(jī)玻璃的力學(xué)性能及其工程應(yīng)用[ J]. 建筑結(jié)構(gòu),2023,53(8):1-6,35. WANG Yuanqing,ZHENG Baofeng,SHU Ganping,et al. Mechanical properties and engineering applicationof structural acrylic [J]. Building Structure,2023,53(8):1-6,35.
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