软土地基上交通荷载振动的处理方法探究
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摘要
本文以软土地基上某住宅为研究对象,现场实测了在交通荷载作用下采用水泥搅拌桩隔离墙处理前后该住宅的振动响应,并根据加速度峰值与速度峰值对房屋的舒适性及安全性进行评价。研究结果表明,地面交通荷载引起的振动未对该房屋的安全性造成影响,但会使居民产生不适感;场地卓越周期与建筑自振周期接近,在交通荷载作用下场地与房屋产生共振或类共振现象,水泥搅拌桩隔离墙可以有效地降低交通荷载引起的房屋振动响应。
In this paper,separating wall of cement slurry mixing pile was built to reduce the vibration response of residential building located on soft soil under traffic load. The comfort and safety of the building was evaluated according to the peak of acceleration and speed. The results showed that traffic load did not affect the safety of residential building,but it could make the residents feel discomfort.Site predominant period and building natural vibration period was so similar that made the site and building appear resonance and pseudo-resonance phenomenon under traffic load. The separating wall of cement slurry mixing pile wall could reduce the vibration response of building effectively.
In this paper,separating wall of cement slurry mixing pile was built to reduce the vibration response of residential building located on soft soil under traffic load. The comfort and safety of the building was evaluated according to the peak of acceleration and speed. The results showed that traffic load did not affect the safety of residential building,but it could make the residents feel discomfort.Site predominant period and building natural vibration period was so similar that made the site and building appear resonance and pseudo-resonance phenomenon under traffic load. The separating wall of cement slurry mixing pile wall could reduce the vibration response of building effectively.
引文
[1]闫维明,聂晗,等.地铁交通引起的环境振动的实测与分析[J].地震工程与工程振动,2006(4)
[2]徐建.建筑振动工程手册[M].北京:中国建筑工业出版社,2002
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[4]章东强,谢伟平,于艳丽.交通荷载引起的环境振动实测与分析[J].武汉理工大学学报,2004(9)
[5]楼梦麟,谭广宝.公路交通运行引起的振动实测及其衰减分析[J].力学季刊,2013(4)
[6]章定文,刘松玉.深层搅拌桩隔离墙应用于软基高速公路扩建工程的数值分析[J].公路交通科技,2005(11)
[7]杨涛,李磊,等.高速公路扩建工程软基隔离墙加固机理的数值分析[J].公路交通科技,2011(8)
[8]徐超,徐泽中.高速公路拼接段地基处理设计分析方法与工程实践[J].工程地质学报,2000(1)
[9]JGJ 79-2012建筑地基处理技术规范[S]
[10]本书编委会.地基处理手册(第3版)[M].北京:中国建筑工业出版社,2008
[11]GB 50011-2010建筑抗震设计规范[S]
[12]GB 50292-2015民用建筑可靠性鉴定标准[S]
[13]GB T 50355-2005住宅建筑室内振动限值及其测量方法标准[S]
[2]徐建.建筑振动工程手册[M].北京:中国建筑工业出版社,2002
[3]马骏,袁灯平.道路行车对房屋振动影响评价方法的探讨[J].住宅科技,2011(S1)
[4]章东强,谢伟平,于艳丽.交通荷载引起的环境振动实测与分析[J].武汉理工大学学报,2004(9)
[5]楼梦麟,谭广宝.公路交通运行引起的振动实测及其衰减分析[J].力学季刊,2013(4)
[6]章定文,刘松玉.深层搅拌桩隔离墙应用于软基高速公路扩建工程的数值分析[J].公路交通科技,2005(11)
[7]杨涛,李磊,等.高速公路扩建工程软基隔离墙加固机理的数值分析[J].公路交通科技,2011(8)
[8]徐超,徐泽中.高速公路拼接段地基处理设计分析方法与工程实践[J].工程地质学报,2000(1)
[9]JGJ 79-2012建筑地基处理技术规范[S]
[10]本书编委会.地基处理手册(第3版)[M].北京:中国建筑工业出版社,2008
[11]GB 50011-2010建筑抗震设计规范[S]
[12]GB 50292-2015民用建筑可靠性鉴定标准[S]
[13]GB T 50355-2005住宅建筑室内振动限值及其测量方法标准[S]