Prediction and mitigation of train-induced vibrations of large-scale building constructed on subway tunnel

Yang, Jianjin; Zhu, Shengyang; Zhai, Wanming; Kouroussis, Georges; Wang, Yue; Wang, Kaiyun; Lan, Kai; Xu, Fangzheng

doi:10.1016/j.scitotenv.2019.02.397

Cited by 141 publications

(41 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Based on this state-of-the-art review of VBI systems, existing research has progressed, with algorithms to save computing time, but does not reflect strong earthquakes' effects. 18 Herein, it is recommended that the influences of nonlinear behaviors observed in earthquake levels be considered to assess the safety of train-crossing events using the VBI system to earthquakes. Researchers have identified that frequent earthquakes threaten the safety of train-crossing events on bridges.…”

Section: Introductionmentioning

confidence: 99%

A simplified iterative approach for testing the pulse derailment of light rail vehicles across a viaduct to near-fault earthquake scenarios

Chen

Liu

Zhu

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part F:

View full text Add to dashboard Cite

Near-fault (NF) earthquakes cause severe bridge damage, particularly urban bridges subjected to light rail transit (LRT), which could affect the safety of the light rail transit vehicle (“light rail vehicle” or “LRV” for short). Now when a variety of studies on the fault fracture effect on the working protection of LRVs are available for the study of cars subjected to far-reaching soil motion (FFGMs), further examination is appropriate. For the first time, this paper introduced the LRV derailment mechanism caused by pulse-type near-fault ground motions (NFGMs), suggesting the concept of pulse derailment. The effects of near-fault ground motions (NFGMs) are included in an available numerical process developed for the LRV analysis of the VBI system. A simplified iterative algorithm is proposed to assess the stability and nonlinear seismic response of an LRV-reinforced concrete (RC) viaduct (LRVBRCV) system to a long-period NFGMs using the dynamic substructure method (DSM). Furthermore, a computer simulation software was developed to compute the nonlinear seismic responses of the VBI system to pulse-type NFGMs, non-pulse-type NFGMs, and FFGMs named Dynamic Interaction Analysis for Light-Rail-Vehicle Bridge System (DIALRVBS). The nonlinear bridge seismic reaction determines the impact of pulses on lateral peak earth acceleration (Ap) and lateral peak land (Vp) ratios. The analysis results quantify the effects of pulse-type NFGMs seismic responses on the LRV operations' safety. In contrast with the pulse-type non-pulse NFGMs and FFGMs, this article's research shows that pulse-type NFGM derail trains primarily via the transverse velocity pulse effect. Hence, this study's results and the proposed method can improve the LRT bridges' seismic designs.

show abstract

Section: Introductionmentioning

confidence: 99%

A simplified iterative approach for testing the pulse derailment of light rail vehicles across a viaduct to near-fault earthquake scenarios

Chen

Liu

Zhu

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part F:

View full text Add to dashboard Cite

show abstract

“…As road networks grow increasingly dense and urban lands grow increasingly scarce, many over-track buildings have been constructed along urban rail routes. [1][2][3][4] Rail travel provides citizens with convenient transportation and improves the usage rate of urban lands, but the vibration caused by trains spreads through the surrounding soil and affects nearby buildings. Residents living along these routes are affected daily by this vibration and secondary noise.…”

Section: Introductionmentioning

confidence: 99%

Isolation effects of vehicle-induced vibration tested by integral floating method

Yang

Liu

et al. 2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

A set of integral floating vibration isolation methods was developed in this study to remedy the lack of effective measures for over-track buildings. The effect of vibration isolation pads was investigated experimentally; the resulting field measurements were used to determine the time-frequency dynamic responses of vehicle-induced vibration and isolation effects. The characteristics of the vibration source appear to significantly affect the frequency domain distribution of vibration inside the building. When no vibration isolation measures are taken, the internal vibration of the cultural center exceeds the limit. BSW vibration isolation pads R480, R550, and R800 are effective in the frequency range of 16–80 Hz. The vibration isolation level in the Z direction is between 5.6 and 7.3 dB. After floating vibration isolation treatment, the maximum Z vibration level of the cultural center is 56.4 dB in daytime hours and 52.9 dB at night, which satisfies the relevant standard. The proposed method is shown to effectively hinder the structural vibration caused by subways on surrounding buildings.

show abstract

“…These risks may be based on weather reasons such as the wind, earthquakes, or artificial phenomena such as traffic. We can also find more examples in underground railway infrastructures [ 6 ]. In this case, the authors used the signals in the time domain to study the accelerations produced in a railway tunnel.…”

Section: Introductionmentioning

confidence: 99%

Study on the Vibration Characteristics of the Telescope T80 in the Javalambre Astrophysical Observatory (JAO) Aimed at Detecting Invalid Images

Martínez

Ferrer

Palacios-Navarro

et al. 2020

Sensors

View full text Add to dashboard Cite

The location of large telescopes, generally far from the data processing centers, represents a logistical problem for the supervision of the capture of images. In this work, we carried out a preliminary study of the vibration signature of the T80 telescope at the Javalambre Astrophysical Observatory (JAO). The study analyzed the process of calculating the displacement that occurs because of the vibration in each of the frequencies in the range of interest. We analyzed the problems associated with very low frequencies by means of simulation, finding the most critical vibrations below 20 Hz, since they are the ones that generate greater displacements. The work also relates previous studies based on simulation with the real measurements of the vibration of the telescope taken remotely when it is subjected to different positioning movements (right ascension and/or declination) or when it performs movement actions such as those related to filter trays or mirror cover. The obtained results allow us to design a remote alarm system to detect invalid images (taken with excess vibration).

show abstract

Prediction and mitigation of train-induced vibrations of large-scale building constructed on subway tunnel

Cited by 141 publications

References 41 publications

A simplified iterative approach for testing the pulse derailment of light rail vehicles across a viaduct to near-fault earthquake scenarios

A simplified iterative approach for testing the pulse derailment of light rail vehicles across a viaduct to near-fault earthquake scenarios

Isolation effects of vehicle-induced vibration tested by integral floating method

Study on the Vibration Characteristics of the Telescope T80 in the Javalambre Astrophysical Observatory (JAO) Aimed at Detecting Invalid Images

Contact Info

Product

Resources

About