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
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摘要
本文研究开发了一种适用于经济欠发达地区的低造价新型隔震装置———纤维增强工程塑料板夹层橡胶隔震支座(SFRPB)。这种新型隔震支座选用不饱和聚酯玻璃纤维增强塑料板代替普通叠层橡胶隔震支座中的钢板,使之具有重量轻,造价低,性能好,隔震效果明显,运输和施工安装方便的优点。本文对SFRPB支座进行了压缩特性、极限压缩性能、剪切特性、剪切应变相关性及轴向面压相关性等力学性能试验。研究表明:不饱和聚酯玻璃纤维增强塑料板满足隔震支座对加劲材料力学性能的要求,可作为加劲板替代普通叠层橡胶隔震支座中的钢板。SFRPB支座性能稳定,竖向刚度远大于水平向刚度,是一种理想的隔震装置。
This paper presents a new type of low-cost isolation device—fiber-reinforced-plastic plate isolation bearing(SFRPB).It use the unsaturated polyester resin glass-fiber reinforced plastics plate instead of the steel plate of the traditional steel-reinforced isolator.Compared with the traditional steel-reinforced isolator,it has the advantage of lightweight,low-cost,good performance,convenience installation and simple production process.The test of SFRPB is presented,such as the test for its compression characteristics,shear properties,compression and shear properties of relevance,and ultimate mechanical properties.Results show that the unsaturated polyester resin glass-fiber reinforced plastics plate meets the demands of what the isolation bearings need,and it is feasible to replace the steel reinforcement with it.SFRPB is an ideal type of isolation bearing with stable performance,and compression stiffness which is much higher than the horizontal shear stiffness.
This paper presents a new type of low-cost isolation device—fiber-reinforced-plastic plate isolation bearing(SFRPB).It use the unsaturated polyester resin glass-fiber reinforced plastics plate instead of the steel plate of the traditional steel-reinforced isolator.Compared with the traditional steel-reinforced isolator,it has the advantage of lightweight,low-cost,good performance,convenience installation and simple production process.The test of SFRPB is presented,such as the test for its compression characteristics,shear properties,compression and shear properties of relevance,and ultimate mechanical properties.Results show that the unsaturated polyester resin glass-fiber reinforced plastics plate meets the demands of what the isolation bearings need,and it is feasible to replace the steel reinforcement with it.SFRPB is an ideal type of isolation bearing with stable performance,and compression stiffness which is much higher than the horizontal shear stiffness.
引文
[1]周福霖.工程结构减震控制[M].北京:地震出版社,1997(Zhou Fulin.Seismic control of structureseismological[M].Beijing:Seismological Press,1997(inChinese))
[2]Kelly J M.Analysis of fiber-reinforced elastomeric isolator[J].Journal of Seismology and Earthquake Engineering,1999,2(1):19-34
[3]Tsai H C.Compression stiffness of infinite-strip bearings oflaminated elastic material interleaving with flexiblereinforcements[J].International Journal of Solids andStructures,2004,41(6):6647-6660
[4]Tsai H C,Kelly J M.Buckling load of seismic isolatorsaffected by flexibility of reinforcement[J].InternationalJournal of Solid and Structures,2005,42(7):255-269
[5]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 oncompression performance of FRP rubber bearing[J].Journal of Earthquake Engineering and EngineeringVibration,2011,31(3):154-160(in Chinese))
[6]Moon B Y,Kang G J,Kang B S,et al.Design andmanufacturing of fiber reinforced elastomeric isolator forseismic isolation[J].Journal of Materials ProcessingTechnology,2002,130(2):145-150
[7]Kang G J,Kang B S.Dynamic analysis of fiber-reinforcedelastomeric isolation structures[J].Journal of MechanicalScience and Technology,2009,23(8):1132-1141
[8]GB/T20688.1—2007橡胶支座—第1部分:隔震橡胶支座试验方法[S].2007(GB/T20688.1—2007Rubberbearings—Part 1:Seismic-protection isolators test methods[S].2007(in Chinese))
[2]Kelly J M.Analysis of fiber-reinforced elastomeric isolator[J].Journal of Seismology and Earthquake Engineering,1999,2(1):19-34
[3]Tsai H C.Compression stiffness of infinite-strip bearings oflaminated elastic material interleaving with flexiblereinforcements[J].International Journal of Solids andStructures,2004,41(6):6647-6660
[4]Tsai H C,Kelly J M.Buckling load of seismic isolatorsaffected by flexibility of reinforcement[J].InternationalJournal of Solid and Structures,2005,42(7):255-269
[5]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 oncompression performance of FRP rubber bearing[J].Journal of Earthquake Engineering and EngineeringVibration,2011,31(3):154-160(in Chinese))
[6]Moon B Y,Kang G J,Kang B S,et al.Design andmanufacturing of fiber reinforced elastomeric isolator forseismic isolation[J].Journal of Materials ProcessingTechnology,2002,130(2):145-150
[7]Kang G J,Kang B S.Dynamic analysis of fiber-reinforcedelastomeric isolation structures[J].Journal of MechanicalScience and Technology,2009,23(8):1132-1141
[8]GB/T20688.1—2007橡胶支座—第1部分:隔震橡胶支座试验方法[S].2007(GB/T20688.1—2007Rubberbearings—Part 1:Seismic-protection isolators test methods[S].2007(in Chinese))
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