两类新型简易隔震支座的试验性能对比研究
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摘要
本文提出采用复合材料工程塑料板替代传统橡胶支座中的钢板,形成一种简易隔震支座。选用树脂纤维加强复合材料工程塑料板与不饱和聚酯纤维加强复合材料板这两类板材,分别对其进行了拉伸和弯曲性能试验。试验表明两种纤维加强的工程塑料板其弯曲强度和拉伸强度均满足隔震支座对加劲材料的力学性能要求。在此基础上,本文研发了采用这两类工程塑料板的新型简易隔震支座,也称隔震砖,并对其进行了系统的力学性能试验。试验结果表明:这两类简易隔震支座均性能稳定,具有良好的阻尼特性;树脂型隔震砖的性能要优于不饱和聚酯型隔震砖。该新型简易隔震支座具有重量轻、造价低、便于运输与施工等优点,可望在不发达村镇地区普及推广,具有重要的现实意义与应用前景。
This paper presents a novel simple isolator,in which the resin or the unsaturated polyester fiber reinforcement engineering plastic sheet are used to replace steel sheet within rubber bearing to produce lightweight and low cost isolator for application to rural buildings. Bending and tensile tests of both types of engineering plastic plates have been carried out to investigate their characteristics. Results show that the mechanical properties of both engineering plastic plates are able to meet the requirements as a replacing stiffening material for rubber isolator. A systematical experiment of the new isolators is performed to investigate the mechanical characteristics of the proposed isolators. Experimental results show that the proposed simple isolators have stable mechanical properties and high damping characteristics,and the mechanical properties of the resin fiber-reinforced isolator is better than the unsaturated polyester fiber-reinforced isolator. The proposed simple isolator provides scientific and technological support for popularizing seismic isolation technology in underdeveloped rural area,which is of theoretical and practical significance.
This paper presents a novel simple isolator,in which the resin or the unsaturated polyester fiber reinforcement engineering plastic sheet are used to replace steel sheet within rubber bearing to produce lightweight and low cost isolator for application to rural buildings. Bending and tensile tests of both types of engineering plastic plates have been carried out to investigate their characteristics. Results show that the mechanical properties of both engineering plastic plates are able to meet the requirements as a replacing stiffening material for rubber isolator. A systematical experiment of the new isolators is performed to investigate the mechanical characteristics of the proposed isolators. Experimental results show that the proposed simple isolators have stable mechanical properties and high damping characteristics,and the mechanical properties of the resin fiber-reinforced isolator is better than the unsaturated polyester fiber-reinforced isolator. The proposed simple isolator provides scientific and technological support for popularizing seismic isolation technology in underdeveloped rural area,which is of theoretical and practical significance.
引文
[1]王兰民,袁中夏,等.西北农居抗震设防技术指南[M].北京:地震出版社,2011.
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[3]Kelly J M.Analysis of fiber-reinforced elastomeric isolators[J].Journal of Seismol Earthquake Engineering,1999,2(1):19-34.
[4]Kelly J M.Taldairov S.M.Analytical and experiment study of fiber-reinforced elastomeric isolators[PEER Report][R].America:University of California,2001.
[5]Gyung Ju Kang,Beom Soo Kang.Dynamic analysis of fiber-reinforced elastomeric isolation structures[J].Journal of Mechanical Science and Technology,2009,(23):1132-1141.
[6]Toopchi-Nezhad H,Tait MJ,Drysdale RG.Testing and modeling of square carbon fiber-reinforced elastomeric seismic isolators[J].Structural Control&Health Monitoring,2008,15(6):876-900.
[7]Ghasem Dehghani Ashkezaria,Ali Akbar Aghakouchaka,Mehrdad Kokabib.Design,manufacturing and evaluation of the performance of steel like fiber reinforced elastomeric seismic isolators[J].Journal of Materials Processing Technology,2008(197):140-150.
[8]Hamid Toopchi-Nezhad,Michael J.Tait,Robert G.Drysdale.Bonded versus unbonded strip fiber reinforced elastomeric isolators:Finite element analysis[J].Composite Structures,2011,(93):850-859.
[9]Samaneh Khanlari,Ghasem Dehghani Ashkezari,Mehrdad Kokabi,Mehdi Razzaghi Kashani.Fiber-Reinforced Nanocomposite Seismic Isolators:Design and Manufacturing[J].Polymer Composites,2010:209-306.
[10]张华,彭天波,李建中,等.FRP橡胶支座压缩性能分析[J].地震工程与工程振动,2011,31(3):154-160.ZHANG Hua,PENG Tianbo,LI Jianzhong,et al.Study on compression performance of FRP rubber isolator[J].Journal of Earthquake Engineering and Engineering Vibration,2011,31(3):154-160.(in Chinese)
[11]黄襄云,周福霖.纤维橡胶隔震结构模拟地震振动台试验研究及仿真分析[J].广州大学学报:自然科学版,2010(5):21-26.HUANG Xiangyun,ZHOU Fulin.Simulating earthquake shaking table of isolation structure with fiber-reinforced isolator and finite element analysis[J].Journal of Guangzhou Unversity(Natural Science Edtion),2010(5):21-26.(in Chinese)
[12]王斌,谭平,徐凯,等.新型纤维增强工程塑料板夹层橡胶隔震支座力学性能试验研究[J].土木工程学报(增刊),2012,45:187-191.WANG Bin,TAN Ping,XU Kai,et al.Mechanical performance tests of a novel fiber-reinforced-plastic plate isolation isolator[J].China Civil Engineering Journal,2012,45:187-191.(in Chinese)
[13]谭平,徐凯,王斌,等.基于新型简易隔震支座的村镇建筑隔震性能研究[J].土木工程学报,2013,46:64-70.TAN Ping,XU Kai,WANG Bin,et al.Performance study of isolated rural buildings using novel simple isolators[J].China Civil Engineering Journal,2013,46:64-70.(in Chinese)
[14]GB/T20688.1-2007橡胶支座—第1部分:隔震橡胶支座试验方法[S].北京:标准出版社,2007.GB/T20688.1-2007 Rubber bearings-Part 1:Elastomeric Seismic-Protection Isolators Test Methods[S].Beijing:Standards Press of China,2007.(in Chinese)
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[3]Kelly J M.Analysis of fiber-reinforced elastomeric isolators[J].Journal of Seismol Earthquake Engineering,1999,2(1):19-34.
[4]Kelly J M.Taldairov S.M.Analytical and experiment study of fiber-reinforced elastomeric isolators[PEER Report][R].America:University of California,2001.
[5]Gyung Ju Kang,Beom Soo Kang.Dynamic analysis of fiber-reinforced elastomeric isolation structures[J].Journal of Mechanical Science and Technology,2009,(23):1132-1141.
[6]Toopchi-Nezhad H,Tait MJ,Drysdale RG.Testing and modeling of square carbon fiber-reinforced elastomeric seismic isolators[J].Structural Control&Health Monitoring,2008,15(6):876-900.
[7]Ghasem Dehghani Ashkezaria,Ali Akbar Aghakouchaka,Mehrdad Kokabib.Design,manufacturing and evaluation of the performance of steel like fiber reinforced elastomeric seismic isolators[J].Journal of Materials Processing Technology,2008(197):140-150.
[8]Hamid Toopchi-Nezhad,Michael J.Tait,Robert G.Drysdale.Bonded versus unbonded strip fiber reinforced elastomeric isolators:Finite element analysis[J].Composite Structures,2011,(93):850-859.
[9]Samaneh Khanlari,Ghasem Dehghani Ashkezari,Mehrdad Kokabi,Mehdi Razzaghi Kashani.Fiber-Reinforced Nanocomposite Seismic Isolators:Design and Manufacturing[J].Polymer Composites,2010:209-306.
[10]张华,彭天波,李建中,等.FRP橡胶支座压缩性能分析[J].地震工程与工程振动,2011,31(3):154-160.ZHANG Hua,PENG Tianbo,LI Jianzhong,et al.Study on compression performance of FRP rubber isolator[J].Journal of Earthquake Engineering and Engineering Vibration,2011,31(3):154-160.(in Chinese)
[11]黄襄云,周福霖.纤维橡胶隔震结构模拟地震振动台试验研究及仿真分析[J].广州大学学报:自然科学版,2010(5):21-26.HUANG Xiangyun,ZHOU Fulin.Simulating earthquake shaking table of isolation structure with fiber-reinforced isolator and finite element analysis[J].Journal of Guangzhou Unversity(Natural Science Edtion),2010(5):21-26.(in Chinese)
[12]王斌,谭平,徐凯,等.新型纤维增强工程塑料板夹层橡胶隔震支座力学性能试验研究[J].土木工程学报(增刊),2012,45:187-191.WANG Bin,TAN Ping,XU Kai,et al.Mechanical performance tests of a novel fiber-reinforced-plastic plate isolation isolator[J].China Civil Engineering Journal,2012,45:187-191.(in Chinese)
[13]谭平,徐凯,王斌,等.基于新型简易隔震支座的村镇建筑隔震性能研究[J].土木工程学报,2013,46:64-70.TAN Ping,XU Kai,WANG Bin,et al.Performance study of isolated rural buildings using novel simple isolators[J].China Civil Engineering Journal,2013,46:64-70.(in Chinese)
[14]GB/T20688.1-2007橡胶支座—第1部分:隔震橡胶支座试验方法[S].北京:标准出版社,2007.GB/T20688.1-2007 Rubber bearings-Part 1:Elastomeric Seismic-Protection Isolators Test Methods[S].Beijing:Standards Press of China,2007.(in Chinese)
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