Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region

Shijie Wang; Quansheng Sun; Hongshuai Gao; Hongxiang Xia

doi:doi:10.11648/j.ajce.20200802.12

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Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region

Shijie Wang, Quansheng Sun, Hongshuai Gao, Hongxiang Xia

Published in American Journal of Civil Engineering (Volume 8, Issue 2)

Received: 30 March 2020 Accepted: 14 April 2020 Published: 23 April 2020

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Abstract

According to similar criteria, the on-site lattice support on-site in the typhoon area is 62m high and scaled down at 1: 150 to produce an aeroelastic scaled model of the lattice support. Based on the specifications and the characteristics of the wind field in the area where the project is located, a type A landform is used for wind tunnel tests. Through the measured structural dynamic characteristics combined with the help of the finite element analysis software Ansys, the dynamic characteristics of the lattice support under typhoon wind field were studied. The test results showed that under wind load, the lattice support itself is dominated by second-order low-frequency vibrations. The top end of the bracket is excited with a lower first-order frequency. The difference between the first-order and second-order natural frequencies is small. The support is about H / 3 height or more, which is greatly affected by wind load and speed, and is less affected below 30m; at each wind direction angle, the acceleration response of each measurement point of the support generally increases non-linearly with the increase of wind speed. The response of the measuring point shows a quadratic curve relationship with the wind speed. The acceleration of the measuring point gradually decreases from the top to the bottom. At the same wind speed, the closer to the top, the larger the acceleration. The positive change is more than H / 2, and the change period is unstable. Below 20m, the positive and negative acceleration changes relatively uniformly, the closer to the bottom, the smaller the acceleration period; the maximum value of the wind vibration response at each measurement point occurs under the wind angle of 0 ° and 90 °, the wind resistance generated by the box girder cross section has little effect on the support; at a wind angle of 45 °, the response value of the crosswind and windward wind vibration is similar, and the effect of the crosswind cannot be ignored.

Published in	American Journal of Civil Engineering (Volume 8, Issue 2)
DOI	10.11648/j.ajce.20200802.12
Page(s)	30-36
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Steel Tubular Lattice Support System, Wind Load, Wind Tunnel Test, Wind Direction Angle, Root Mean Square Acceleration

References

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[2]	Cao, S.; Tamura, Y.; Kikuchi, N.; Saito, M.; Nakayama, I.; Matsuzaki, Y. Wind characteristics of a strong typhoon. J. Wind Eng. Ind. Aerodyn. 2009, 97, 11–21.
[3]	CHOI E C C. Characteristics of typhoons over the south China sea [J]. Journal of Industrial Aerodynamics, 1978, 3 (4): 353-365.
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[5]	Shao Demin, Duan Yihong, Zhang Wei. Observation and analysis of typhoon wind speed profile characteristics in Shanghai. The Eleventh National Structural Engineering-Wind Engineering Conference Proceedings [C]. Hainan Sanya, 2004: 87-91 (in Chinese).
[6]	Fang Pingzhi, Zhao Bingke, Shao Demin, etc. Characteristics of atmospheric turbulence near the ground before and after “Sepat” typhoon. The Forteenth National Structural Engineering-Wind Engineering Conference Proceedings [C]. Beijing, 2009: 7-62 (in Chinese).
[7]	SONG Lili, MAO Huiqin, HUANG Haohui, et ai. Analysis on boundary layer turbulent features of landfalling typhoon [J]. Acta Meteorological Sinica, 2005, 63 (6): 915-921 (in Chinese).
[8]	LI Jie, YAN Qi, XIE Qiang, et al. Wind field measurements and wind-induced vibration responses of transmission tower during typhoon wipha [J]. Journal of Building Structures, 2009, 26 (2): 1-8 (in Chinese).
[9]	LOU Wenjuan, SUN Binnan, TANG Jinchun. Wind tunnel test and numerical computation on wind-induced vibration for tall lattice tower [J]. Journal of Vibration Engineering, 1996, 19 (3): 318-322 (in Chinese).
[10]	LIANG Shuguo, ZOU Lianghao, HAN Yinquan, etal. Study of wind tunnel tests of a full aero-elastic model of electrical transmission tower-line systems [J]. China Civil Engineering Journal, 2010, 43 (5): 70-78. (in Chinese).
[11]	ZHAO Gguifeng, XIE Qiang, LIANG Shuguo, et al. Wind tunnel test on Wind-induced response of transmission tower and tower line coupling system [J]. Journal of Building Structures, 2010, 32 (2): 69-77 (in Chinese).
[12]	LIANG Shuguo, ZOU Lianghao, ZHAO Lin, GE Yaojun. Analytical Model of Dynamic Wind Loads on Lattice Towers. Journal of Tongji University (Natural Science) [J].2008, 36 (2): 166-171. (in Chinese).
[13]	Chen, Junfan. Study on The Three-component Coefficients of Latticed Tower Constructed from Cylindrical Members under The Static Wind [D]. Chongqing University, 2016, 2-4. (in Chinese).
[14]	Cheng J, Xu H. Inner mass impact damper for attenuating structure vibration [J]. International Journal of Solids and Structures, 2006, 43 (17): 5355-5369.
[15]	Li K, Darby A P. An experimental investigation into the use of a buffered impact damper [J]. Journal of Sound and Vibration, 2006, 291 (3-5): 844-860.
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APA Style

Shijie Wang, Quansheng Sun, Hongshuai Gao, Hongxiang Xia. (2020). Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region. American Journal of Civil Engineering, 8(2), 30-36. https://doi.org/10.11648/j.ajce.20200802.12

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ACS Style

Shijie Wang; Quansheng Sun; Hongshuai Gao; Hongxiang Xia. Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region. Am. J. Civ. Eng. 2020, 8(2), 30-36. doi: 10.11648/j.ajce.20200802.12

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AMA Style

Shijie Wang, Quansheng Sun, Hongshuai Gao, Hongxiang Xia. Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region. Am J Civ Eng. 2020;8(2):30-36. doi: 10.11648/j.ajce.20200802.12

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@article{10.11648/j.ajce.20200802.12,
  author = {Shijie Wang and Quansheng Sun and Hongshuai Gao and Hongxiang Xia},
  title = {Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region},
  journal = {American Journal of Civil Engineering},
  volume = {8},
  number = {2},
  pages = {30-36},
  doi = {10.11648/j.ajce.20200802.12},
  url = {https://doi.org/10.11648/j.ajce.20200802.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20200802.12},
  abstract = {According to similar criteria, the on-site lattice support on-site in the typhoon area is 62m high and scaled down at 1: 150 to produce an aeroelastic scaled model of the lattice support. Based on the specifications and the characteristics of the wind field in the area where the project is located, a type A landform is used for wind tunnel tests. Through the measured structural dynamic characteristics combined with the help of the finite element analysis software Ansys, the dynamic characteristics of the lattice support under typhoon wind field were studied. The test results showed that under wind load, the lattice support itself is dominated by second-order low-frequency vibrations. The top end of the bracket is excited with a lower first-order frequency. The difference between the first-order and second-order natural frequencies is small. The support is about H / 3 height or more, which is greatly affected by wind load and speed, and is less affected below 30m; at each wind direction angle, the acceleration response of each measurement point of the support generally increases non-linearly with the increase of wind speed. The response of the measuring point shows a quadratic curve relationship with the wind speed. The acceleration of the measuring point gradually decreases from the top to the bottom. At the same wind speed, the closer to the top, the larger the acceleration. The positive change is more than H / 2, and the change period is unstable. Below 20m, the positive and negative acceleration changes relatively uniformly, the closer to the bottom, the smaller the acceleration period; the maximum value of the wind vibration response at each measurement point occurs under the wind angle of 0 ° and 90 °, the wind resistance generated by the box girder cross section has little effect on the support; at a wind angle of 45 °, the response value of the crosswind and windward wind vibration is similar, and the effect of the crosswind cannot be ignored.},
 year = {2020}
}

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TY  - JOUR
T1  - Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region
AU  - Shijie Wang
AU  - Quansheng Sun
AU  - Hongshuai Gao
AU  - Hongxiang Xia
Y1  - 2020/04/23
PY  - 2020
N1  - https://doi.org/10.11648/j.ajce.20200802.12
DO  - 10.11648/j.ajce.20200802.12
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 30
EP  - 36
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20200802.12
AB  - According to similar criteria, the on-site lattice support on-site in the typhoon area is 62m high and scaled down at 1: 150 to produce an aeroelastic scaled model of the lattice support. Based on the specifications and the characteristics of the wind field in the area where the project is located, a type A landform is used for wind tunnel tests. Through the measured structural dynamic characteristics combined with the help of the finite element analysis software Ansys, the dynamic characteristics of the lattice support under typhoon wind field were studied. The test results showed that under wind load, the lattice support itself is dominated by second-order low-frequency vibrations. The top end of the bracket is excited with a lower first-order frequency. The difference between the first-order and second-order natural frequencies is small. The support is about H / 3 height or more, which is greatly affected by wind load and speed, and is less affected below 30m; at each wind direction angle, the acceleration response of each measurement point of the support generally increases non-linearly with the increase of wind speed. The response of the measuring point shows a quadratic curve relationship with the wind speed. The acceleration of the measuring point gradually decreases from the top to the bottom. At the same wind speed, the closer to the top, the larger the acceleration. The positive change is more than H / 2, and the change period is unstable. Below 20m, the positive and negative acceleration changes relatively uniformly, the closer to the bottom, the smaller the acceleration period; the maximum value of the wind vibration response at each measurement point occurs under the wind angle of 0 ° and 90 °, the wind resistance generated by the box girder cross section has little effect on the support; at a wind angle of 45 °, the response value of the crosswind and windward wind vibration is similar, and the effect of the crosswind cannot be ignored.
VL  - 8
IS  - 2
ER  -

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Author Information

Shijie Wang

School of Civil Engineering, Northeast Forestry University, Harbin, China
Quansheng Sun

School of Civil Engineering, Northeast Forestry University, Harbin, China
Hongshuai Gao

School of Civil Engineering, Northeast Forestry University, Harbin, China
Hongxiang Xia

School of Civil Engineering, Northeast Forestry University, Harbin, China

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Plain Text BibTeX RIS

APA Style

Shijie Wang, Quansheng Sun, Hongshuai Gao, Hongxiang Xia. (2020). Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region. American Journal of Civil Engineering, 8(2), 30-36. https://doi.org/10.11648/j.ajce.20200802.12

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ACS Style

Shijie Wang; Quansheng Sun; Hongshuai Gao; Hongxiang Xia. Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region. Am. J. Civ. Eng. 2020, 8(2), 30-36. doi: 10.11648/j.ajce.20200802.12

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AMA Style

Shijie Wang, Quansheng Sun, Hongshuai Gao, Hongxiang Xia. Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region. Am J Civ Eng. 2020;8(2):30-36. doi: 10.11648/j.ajce.20200802.12

Copy | Download

@article{10.11648/j.ajce.20200802.12,
  author = {Shijie Wang and Quansheng Sun and Hongshuai Gao and Hongxiang Xia},
  title = {Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region},
  journal = {American Journal of Civil Engineering},
  volume = {8},
  number = {2},
  pages = {30-36},
  doi = {10.11648/j.ajce.20200802.12},
  url = {https://doi.org/10.11648/j.ajce.20200802.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20200802.12},
  abstract = {According to similar criteria, the on-site lattice support on-site in the typhoon area is 62m high and scaled down at 1: 150 to produce an aeroelastic scaled model of the lattice support. Based on the specifications and the characteristics of the wind field in the area where the project is located, a type A landform is used for wind tunnel tests. Through the measured structural dynamic characteristics combined with the help of the finite element analysis software Ansys, the dynamic characteristics of the lattice support under typhoon wind field were studied. The test results showed that under wind load, the lattice support itself is dominated by second-order low-frequency vibrations. The top end of the bracket is excited with a lower first-order frequency. The difference between the first-order and second-order natural frequencies is small. The support is about H / 3 height or more, which is greatly affected by wind load and speed, and is less affected below 30m; at each wind direction angle, the acceleration response of each measurement point of the support generally increases non-linearly with the increase of wind speed. The response of the measuring point shows a quadratic curve relationship with the wind speed. The acceleration of the measuring point gradually decreases from the top to the bottom. At the same wind speed, the closer to the top, the larger the acceleration. The positive change is more than H / 2, and the change period is unstable. Below 20m, the positive and negative acceleration changes relatively uniformly, the closer to the bottom, the smaller the acceleration period; the maximum value of the wind vibration response at each measurement point occurs under the wind angle of 0 ° and 90 °, the wind resistance generated by the box girder cross section has little effect on the support; at a wind angle of 45 °, the response value of the crosswind and windward wind vibration is similar, and the effect of the crosswind cannot be ignored.},
 year = {2020}
}

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TY  - JOUR
T1  - Dynamic Characteristics Analysis of High Pier Steel Pipe Lattice Support System in Typhoon Region
AU  - Shijie Wang
AU  - Quansheng Sun
AU  - Hongshuai Gao
AU  - Hongxiang Xia
Y1  - 2020/04/23
PY  - 2020
N1  - https://doi.org/10.11648/j.ajce.20200802.12
DO  - 10.11648/j.ajce.20200802.12
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 30
EP  - 36
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20200802.12
AB  - According to similar criteria, the on-site lattice support on-site in the typhoon area is 62m high and scaled down at 1: 150 to produce an aeroelastic scaled model of the lattice support. Based on the specifications and the characteristics of the wind field in the area where the project is located, a type A landform is used for wind tunnel tests. Through the measured structural dynamic characteristics combined with the help of the finite element analysis software Ansys, the dynamic characteristics of the lattice support under typhoon wind field were studied. The test results showed that under wind load, the lattice support itself is dominated by second-order low-frequency vibrations. The top end of the bracket is excited with a lower first-order frequency. The difference between the first-order and second-order natural frequencies is small. The support is about H / 3 height or more, which is greatly affected by wind load and speed, and is less affected below 30m; at each wind direction angle, the acceleration response of each measurement point of the support generally increases non-linearly with the increase of wind speed. The response of the measuring point shows a quadratic curve relationship with the wind speed. The acceleration of the measuring point gradually decreases from the top to the bottom. At the same wind speed, the closer to the top, the larger the acceleration. The positive change is more than H / 2, and the change period is unstable. Below 20m, the positive and negative acceleration changes relatively uniformly, the closer to the bottom, the smaller the acceleration period; the maximum value of the wind vibration response at each measurement point occurs under the wind angle of 0 ° and 90 °, the wind resistance generated by the box girder cross section has little effect on the support; at a wind angle of 45 °, the response value of the crosswind and windward wind vibration is similar, and the effect of the crosswind cannot be ignored.
VL  - 8
IS  - 2
ER  -

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