[1] XING Yunlin, ZENG Xianhong, WU Han, LOU Yu, et al. Improved inversion of highway traffic loads by eliminating usual environmental microvibrations [J]. Journal of Southeast University (English Edition), 2026, 42 (2): 198-205. [doi:10.3969/j.issn.1003-7985.2026.02.006]

Copy

Improved inversion of highway traffic loads by eliminating usual environmental microvibrations()

消除常时微动的改进公路交通荷载反演

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

42

Issue:

2026 2

Page:

198-205

Research Field:

Publishing date:

2026-05-29

Info

Title:

Improved inversion of highway traffic loads by eliminating usual environmental microvibrations

消除常时微动的改进公路交通荷载反演

Author(s):

XING Yunlin¹, ZENG Xianhong², WU Han³, LOU Yu¹

1.China Electronics Engineering Design Institute, Beijing 100142, China
2.School of Rail Transportation, Wuyi University, Jiangmen 529020, China
3.Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

邢云林¹, 曾宪鸿², 吴晗³, 娄宇¹

1.中国电子工程设计院股份有限公司, 北京 100142
2.五邑大学轨道交通学院, 江门 529020
3.中国科学院力学研究所, 北京 100190

Keywords:

inverse pseudoexcitation method;  usual environmental microvibrations(UEMs);  highway traffic loads;  microvibration-sensitive sites

逆虚拟激励法;  常时微动;  公路交通荷载;  微振动敏感场地

PACS:

TU435

DOI:

10.3969/j.issn.1003-7985.2026.02.006

Abstract:

Usual environmental microvibrations (UEMs) can introduce inaccuracies for field-measured traffic-induced vibration responses, leading to significant errors in the inversion of highway traffic loads. This study proposed a method for eliminating UEMs in combination with the inverse pseudoexcitation method to invert highway traffic loads. The real vibration response caused by traffic loads was obtained by separating the UEM component from the measured ground vibration response of a site through a frequency-domain transformation. The frequency response function was subsequently derived using finite element simulation technology. Finally, the traffic load spectrum was inversely identified by performing a matrix inversion operation on the frequency response function matrix. The vibration response at a measurement point was calculated using the inverted traffic load spectrum from a synchrotron radiation light source project and compared with field measurements. The relative error decreased from 21.15% to 6.82%, validating the effectiveness of the proposed method. This approach avoided a complex vehicle-road coupling analysis and provided a reliable technical means for load inversion at sites sensitive to microvibration.

常时微动会对现场实测的交通引起的振动响应造成影响,从而导致公路交通荷载反演结果存在较大误差。为此,本文提出了一种消除常时微动的改进公路交通荷载反演方法,该方法与逆虚拟激励法相结合,用于公路交通荷载的反演。通过频域变换将场地实测地面振动响应中的常时微动分离出来,从而获得由交通荷载引起的真实振动响应。随后,采用有限元仿真技术求取频率响应函数。最后,通过对频率响应函数矩阵进行矩阵求逆运算,反演得到交通荷载谱。以某同步辐射光源工程为例,利用反演得到的交通荷载谱计算测点处的振动响应,并与现场实测结果进行对比。结果表明,相对误差由21.15%降低至6.82%,验证了所提方法的有效性。该方法避免了复杂的车-路耦合分析,为微振动敏感场地的荷载反演提供了一种可靠的技术手段。

References:

[1]LIAO M H, LIANG S, LUO R, et al. The moving load identification method on asphalt roads based on the BP neural network and FBG sensor monitoring[J]. Construction and Building Materials, 2023, 378: 131216.
[2]ZHU X Q, LAW S S. Recent developments in inverse problems of vehicle-bridge interaction dynamics[J]. Journal of Civil Structural Health Monitoring, 2016, 6(1): 107-128.
[3]LIU J, SUN X S, HAN X, et al. Dynamic load identification for stochastic structures based on Gegenbauer polynomial approximation and regularization method[J]. Mechanical Systems and Signal Processing, 2015, 56/57: 35-54.
[4]LI X W, ZHAO H T, CHEN Z, et al. Force identification based on a comprehensive approach combining Taylor formula and acceleration transmissibility[J]. Inverse Problems in Science and Engineering, 2018, 26(11): 1612-1632.
[5]PAN C D, YU L. Identification of external forces via truncated response sparse decomposition under unknown initial conditions[J]. Advances in Structural Engineering, 2019, 22(15): 3161-3175.
[6]PENG S X, PAN C D, CHEN X D, et al. Applying matrix regularization to identification of traffic-induced equivalent loads and multi-vehicle weight on beam-like bridge[J]. Journal of Sound and Vibration, 2024, 590: 118592.
[7]SUN H, BÜYÜKÖZTÜRK O. Identification of traffic- induced nodal excitations of truss bridges through heterogeneous data fusion[J]. Smart Materials and Structures, 2015, 24(7): 075032.
[8]WU S Q, HE Z H, YIN J, et al. Identification of annularly distributed random dynamic load between satellite and rocket in frequency domain[J]. Journal of Southeast University (Natural Science Edition), 2022, 52(5): 825-832. (in Chinese)
[9]GAO S C, XIE M W, ZHANG X Y, et al. Research on vibration characteristics of cantilevered dangerous rock mass[J]. Mining Research and Development, 2023, 43(6): 147-153. (in Chinese)
[10]ZHANG X, SUN W B, ZHANG Q X, et al. Study on the application of passive seismic interferometric imaging technology in the detection of goaf in coalfield[J]. Geological Review, 2024, 70(5): 1899-1905. (in Chinese)
[11]ZHANG T, LI T, FENG S. Elastoplastic two-surface model for describing strain-softening behavior of saturated cohesive soils[J]. Rock and Soil Mechanics, 2022, 43(10): 2757-2767. (in Chinese)
[12]GU Y Q, CAO W Z, YUAN S F, et al. Inverse finite element method based shape reconstruction for spaceborne antenna structures under thermal load[J]. Journal of Southeast University (Natural Science Edition), 2024, 54(4): 997-1004. (in Chinese)
[13]FENG D M, WANG B Q, XIA Y, et al. Analysis on driving comfort of large-span girder bridges considering traffic flow load[J]. Journal of Southeast University (Natural Science Edition), 2025, 55(2): 468-476. (in Chinese)
[14]ZHI H, GUO X L, LIN J H. Inverse virtual excitation method for stationary random vibration load identification (Ⅱ)[J]. Chinese Journal of Computational Mechanics, 1998, 15(4): 395-400.
[15]LOU Y, XING Y L, LÜ Z C, et al. Inversion method for soil dynamics parameters of high energy photon source[J]. Journal of Southeast University (Natural Science Edition), 2023, 53(6): 973-978. (in Chinese)
[16]LIU J B, GU Y, DU Y X. Consistent viscous-spring artificial boundaries and viscous-spring boundary elements[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(9): 1070-1075. (in Chinese)
[17]DUCARNE L, AINALIS D, KOUROUSSIS G. Assessing the ground vibrations produced by a heavy vehicle traversing a traffic obstacle[J]. Science of the Total Environment, 2018, 612: 1568-1576.
[18]ZHANG Z J, LI X Z, ZHANG X, et al. Measurements and evaluation of road traffic-induced micro-vibration in a workshop equipped with precision instruments[J]. Buildings, 2024, 14(4): 1142.

Memo

Memo:

Received: 2025-08-01; Revised: 2025-11-27.
Biography: XING Yunlin (1987—), male, doctor, professorate senior engineer, xingyunlin@sdic.com.cn.
Foundation item: The National Key Research and Development Program of China(No.2023YFF0616500).
Citation: XING Yunlin, ZENG Xianhong, WU Han, et al. Improved inversion of highway traffic loads by eliminating usual environmental microvibrations[J]. Journal of Southeast University (English Edition), 2026, 42(2): 198-205. DOI: 10. 3969/j. issn. 1003-7985. 2026. 02. 006.

Common functions