|
|
|
| Experimental study of field vibration influence induced by large shaking-table operation |
| LIU Bideng, GUO Xun, ZHOU Yang, WANG Wei, YU Miao |
| Institute of Disaster Prevention, Sanhe, Hebei 065201, China |
|
|
|
Abstract The free-field vibration induced by large shaking-table was studied by analysis and measurement. The mass-spring-damping model is reasonable that the lumped mass is afforded by shaking-table foundation while the restoring force and damping force are afforded by foundation soil. Based on the displacement frequency response curve by using sweep experiment, the natural frequency of the foundation was obtained. The shaking-table induced free-field acceleration is only 5 gal while the table acceleration is 1.5 g. The vibration attenuation law with distance follows the exponential relationship. The full load operation of the shaking table is no significant impact on human bodies’ health and safety of buildings without layout of precise instruments and high-tech facilities.
|
|
Received: 28 September 2015
Published: 25 June 2016
|
|
|
|
[1]黄菊花，何成宏，扶名福等. 关于动力机器基础激发的地面振动衰减公式的讨论[J].塑性工程学报，2001，Vol8(3)： 85-88.
HUANG Ju-hua, HE Chen-hong, FU Ming-fu, et al. Discussion on formula calculating the attenuation of the ground vibration by dynamic machine foundation[J]. Journal of Plasticity Engineering, 2001, Vol8(3) : 85-88.
[2]曹艳梅.列车引起的自由场地及建筑物振动的理论分析和试验研究[D].北京：北京交通大学，2006.
CAO Yan-mei. Theoretical analysis and experimental study of ground and building vibrations induced by moving train[D]. Beijing: Beijing Jiaotong University, 2006.
[3]黄浩华.地震模拟振动台的设计与应用技术[M]. 北京：地震出版社，2008.
HUANG Hao-hua. Design and application of simulating earthquake shaking table [M]. Beijing: Seismological Press, 2008.
[4]侯兴民，廖振鹏，黄浩华. 动力基础频域响应分析[J]. 工程力学，2003，20(4)：122-127.
HOU Xing-min, LIAO Zhen-peng, HUANG Hao-hua. Dynamic response analysis of foundation in the frequency domain [J]. Enginerring Mechnacis, 2003, 20(4): 122-127.
[5]葛新权.应用数理统计. 北京：中国铁道出版社，1995.
Ge Xin-quan. Applied mathematical statistics. Beijing: China Railway Publishing House, 1995.
[6]防灾科技学院大型振动台实验用房岩土工程勘察报告[R].廊坊：华冠岩土公司，2007.
Geotechnical engineering investigation for engineering feild of large shaking-table in CIDP [R]. Langfang: Huaguan Geotechnical Company, 2007.
[7]GB50040-96.动力机器基础设计规范[S].北京：中国计划出版社，1996.
GB50040-96. Code for design of dynamic machine foundation [S]. Beijing: China Planning Press, 1996.
[8]徐建.建筑振动工程手册[M].北京：中国建筑工业出版社，2002.
XU Jian. Manual for building’s vibration engineering [M]. Beijing: China Architecture and Building Press, 2002.
|
|
|
|
