铸铁管道胶圈承插接口抗震性能试验研究
|
摘要
铸铁管道是城市供水工程常用的管材,其接口的抗震性能是地震多发地区供水管网设计必须考虑的因素之一。为研究胶圈承插接口的力学性能参数,采用了原型拉拔试验,测定了管道胶圈接口拉拔力与接口变形量,通过试验数据分析,证明了胶圈承插接口具有良好的抗震性能,接头最大允许变形量可达3～4 cm,测定出铸铁管胶圈承插接口单位接触面积弹簧系数值在32～125 N/(cm.cm-2)之间、单位接触面积接头最大抗力为45～75 N/cm2。
Ductile cast iron pipe is a tubular product,which is frequently used in city water-supply project.The seismic capability of joints is one of the factors,which must be considered in the design of water-supply network in seismic areas.To study the mechanical parameters of rubber gasket joints,a series of prototype drawing experiment are performed to investigate the regularity of joints drawing force and the joints displacement.The experimental results show that,rubber gasket joints for ductile cast iron pipe is favorable for earthquake-resistance;the allowed maximum joints displacement is about 3~4cm;the joints spring coefficient is between 32N/cm·cm-2 to 125 N/cm·cm-2and the maximum resistance is about 45~75N/cm2.
Ductile cast iron pipe is a tubular product,which is frequently used in city water-supply project.The seismic capability of joints is one of the factors,which must be considered in the design of water-supply network in seismic areas.To study the mechanical parameters of rubber gasket joints,a series of prototype drawing experiment are performed to investigate the regularity of joints drawing force and the joints displacement.The experimental results show that,rubber gasket joints for ductile cast iron pipe is favorable for earthquake-resistance;the allowed maximum joints displacement is about 3~4cm;the joints spring coefficient is between 32N/cm·cm-2 to 125 N/cm·cm-2and the maximum resistance is about 45~75N/cm2.
引文
[1]侯忠良.地下管线抗震[M].北京:学术书刊出版社,1990:1-36.HOU Zhongliang.Seismic research on buried pipelines[M].Beijing:Xueshushukan Press,1990:1-36.(in Chinese)
[2]吴少艳,吴德军,陈东.地震对市政管道的破坏及管道的抗震处理[J].地震工程与工程振动,2006,26(3):200-202.WU Shaoyan,WU Dejun,CHEN Dong.Earthquake damage to municipal pipes and seismic treatment[J].Journal of Earthquake Engineering andEngineering Vibration,2006,26(3):200-202.(in Chinese)
[3]王绍伟,王永,钱正华,等.“5.12"地震灾区供水系统受损及恢复调研与分析[J].中国给水排水,2009,25(20):1-5.WANG Shaowei,WANG Yong,QIAN Zhenghua,et al.Investigation and analysis about damage and recovery of water supply system in 5.12 Earth-quake areas[J].China Water&Wastewater,2009,25(20):1-5.(in Chinese)
[4]Rourke T D,Grigoriu M D,Khater M M.Seismic response of buried pipelines[M].Pressure Vessel Piping Technol,ASME,1985:281-323.
[5]王汝樑.地下管线的震害、抗震验算、设计与措施[M].北京:地震出版社,2007:125-146.WANG Ruliang.Buried lifeline earthquake engineering and related research[M].Beijing:Seismological Press,2007:125-146.(in Chinese)
[6]周静海,李宏男,宋阳.埋地球墨铸铁供水管道轴向拉拔试验[J].沈阳建筑大学学报:自然科学版,2009,25(3):474-477.ZHOU Jinghai,LI Hongnan,SONG Yang.Pullout test research on the underground water pipelines[J].Journal of Shenyang Jianzhu University:Natural Science,2009,25(3):474-477.(in Chinese)
[2]吴少艳,吴德军,陈东.地震对市政管道的破坏及管道的抗震处理[J].地震工程与工程振动,2006,26(3):200-202.WU Shaoyan,WU Dejun,CHEN Dong.Earthquake damage to municipal pipes and seismic treatment[J].Journal of Earthquake Engineering andEngineering Vibration,2006,26(3):200-202.(in Chinese)
[3]王绍伟,王永,钱正华,等.“5.12"地震灾区供水系统受损及恢复调研与分析[J].中国给水排水,2009,25(20):1-5.WANG Shaowei,WANG Yong,QIAN Zhenghua,et al.Investigation and analysis about damage and recovery of water supply system in 5.12 Earth-quake areas[J].China Water&Wastewater,2009,25(20):1-5.(in Chinese)
[4]Rourke T D,Grigoriu M D,Khater M M.Seismic response of buried pipelines[M].Pressure Vessel Piping Technol,ASME,1985:281-323.
[5]王汝樑.地下管线的震害、抗震验算、设计与措施[M].北京:地震出版社,2007:125-146.WANG Ruliang.Buried lifeline earthquake engineering and related research[M].Beijing:Seismological Press,2007:125-146.(in Chinese)
[6]周静海,李宏男,宋阳.埋地球墨铸铁供水管道轴向拉拔试验[J].沈阳建筑大学学报:自然科学版,2009,25(3):474-477.ZHOU Jinghai,LI Hongnan,SONG Yang.Pullout test research on the underground water pipelines[J].Journal of Shenyang Jianzhu University:Natural Science,2009,25(3):474-477.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心