非一致地震激励地下综合管廊振动台模型试验研究(Ⅰ)——试验方法
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摘要
针对浅层软土中埋设的矩形截面地下综合管廊进行了非一致地震激励下的振动台模型试验研究。作为首个此种类型结构非一致激励的振动台试验工作,本文主要介绍试验方法,重点包括试验方案设计、开洞试验模型箱与模型结构设计,根据试验的特殊要求而开发的土体滑移传感器和地下结构接头位移测量装置,以及人工合成输入地震波动时程的方法与步骤。上述试验设计方法可供今后类似试验工作参考。试验结果分析及数值模型验证结果将在后续系列论文中介绍。
A series of shaking table tests were conducted on scaled utility tunnel model with or without construction joint under non-uniform input earthquake excitation.Being the first shaking table test on utility tunnel with consideration of non-uniform excitation,details of experimental setup are first presented with special focuses on: design and fabrication of double-axis laminar shear box with a rectangular hole opened on its side walls;design fabrication of structural model with or without joint;design and verification of two devices for measuring the slippage between the interface of model ground and the structure,and finally the procedure for construction of input earthquake ground motions.Details of experimental setup presented in this paper are useful for further similar test.
A series of shaking table tests were conducted on scaled utility tunnel model with or without construction joint under non-uniform input earthquake excitation.Being the first shaking table test on utility tunnel with consideration of non-uniform excitation,details of experimental setup are first presented with special focuses on: design and fabrication of double-axis laminar shear box with a rectangular hole opened on its side walls;design fabrication of structural model with or without joint;design and verification of two devices for measuring the slippage between the interface of model ground and the structure,and finally the procedure for construction of input earthquake ground motions.Details of experimental setup presented in this paper are useful for further similar test.
引文
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[2]胡敏华,蔺宏.论市政共同沟的发展史及其意义[J].基建优化,2004,25(3):7-10.
[3]唐海华,叶礼诚,刘涛.国内外市政共同沟建设的现状与趋势[J].建筑施工,2001,23(5):346-348.
[4]钱七虎,陈晓强.国内外地下综合管线廊道发展的现状、问题及对策[J].地下空间与工程学报,2007,3(2):191-194.
[5]阪神.淡路大震災調查報告土木構造物の被害の原因分析,第五章トンネル.地下構造物[M].日本土木学会,1999.
[6]兵W県南部地震における共同溝の被災解析と耐震性能評価[R].日本交通省土木研究所資料,0386-587.
[7]王燕华,程文瀼,陆飞,等.地震模拟振动台的发展[J].工程抗震与结构加固,2007,29(5):53-56.
[8]吴华勇.地下管线-土体相互作用试验研究[D].上海:同济大学,2006.
[9]史晓军,陈隽,李杰.层状双向剪切模型箱的设计及振动台试验验证[J].地下空间与工程学报(待发表).
[10]大友敬三,末W俊夫,和井正,等.震における鉄筋コンクリ?ト製地中構造物横断面の塑性変形に関する実証研究[C]//土木学会論文集,No.724/I-62,2003:157-175.
[11]川島一.地下構造物の耐震設計[M].東京:鹿島出版社,1994.
[12]Harichandran R,Vanmarcke E.Stochastic variation of earthquake ground motion in space and time,[J].ASCE,J.EM,1986,112(2):154-174.
[13]李杰,李国强.地震工程学导论[M].北京:地震出版社,1992.
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