Research on Design Method of Cylindrical-Cone Steel Structure Cooling Towers

PAN Liang; CAO Jiahao; XUE Qiang; WANG Kai; LAN Xu; WANG Xiaoliang

doi:10.13204/j.gyjzG23053107

Volume 53 Issue 11

Nov. 2023

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PAN Liang, CAO Jiahao, XUE Qiang, WANG Kai, LAN Xu, WANG Xiaoliang. Research on Design Method of Cylindrical-Cone Steel Structure Cooling Towers[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(11): 145-155,138. doi: 10.13204/j.gyjzG23053107

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Research on Design Method of Cylindrical-Cone Steel Structure Cooling Towers

doi: 10.13204/j.gyjzG23053107

1. Infrastructure Department, Northwest Agriculture and Forestry University, Xianyang 712100, China;
2. School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China;
3. Prefabricated Steel Structure Research Institute Co., Ltd., of Xi'an Univ. of Arch. & Tech., Xi'an 710055, China;
4. Shaanxi Energy Linbei Power Generation Co., Ltd., Baoji 721000, China

Received Date: 2023-05-31

Abstract

Abstract

A new cylindrical-cone steel cooling tower was proposed, and the concrete cooling tower was selected as a reference for the comparison study, which verified the technical achievability and structural reliability of the steel cooling tower, the results showed that its cost and duration were less than the concrete cooling tower. The calculation formulae for the axial, flexural, shear and torsional stiffness of the four-sided angle steel lattice type members was derived, on which the equivalent substitution principle and calculation method of the box-type thin-walled units were proposed, and the correction coefficients of the stiffness parameters were optained, which were analyzed and calibrated by using the finite element model. The results showed that the equivalent substitution of cross-sectional stiffness proposed in the paper had high accuracy and could meet the requcrements of engineering accuracy. By introducing the negative stiffness of axial force, the formula of calculated length coefficient applicable to general space structures was obtained.
- cylindrical-cone steel cooling tower,
- lattice elements,
- equivalent substitution,
- negative stiffness,
- calculated length factor

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References

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