A New Method for Analyzing the Dimension Error of Marine Steel Structures
International Journal of Oil, Gas and Coal Engineering
Volume 7, Issue 1, January 2019, Pages: 33-39
Received: Oct. 10, 2018; Accepted: Jan. 23, 2019; Published: Feb. 15, 2019
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Meng Linghe, Surveying Department, Offshore Oil Engineering Co., Ltd., Tianjin, China
Zhang Shijian, Surveying Department, Offshore Oil Engineering Co., Ltd., Tianjin, China
Xiao Liquan, Surveying Department, Offshore Oil Engineering Co., Ltd., Tianjin, China
Wang Xuelian, Tianjin Ruiyang Offshore Engineering Co., Ltd., Tianjin, China
Yang Zilong, Surveying Department, Offshore Oil Engineering Co., Ltd., Tianjin, China
Wang Zhihong, Surveying Department, Offshore Oil Engineering Co., Ltd., Tianjin, China
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With the strengthening of offshore oil exploitation, the construction of marine steel structures such as offshore oil platforms has been carried out on a large scale. During the construction process, the dimensional control and error analysis of marine steel structures is an important point. The dimensional error of marine steel structure is an important indicator reflecting the quality of marine steel structure construction. The marine steel structure is completed from structural design to offshore installation. The structural dimensional error must be strictly controlled and analyzed at each stage. It has important guiding significance for the design and construction of marine steel structure, ensuring final installation and safe production. Based on the summary of traditional size control and analysis methods, this paper introduces a new method of size control and analysis. The new method introduced in this paper uses the minimum two-passenger fitting technique, that is, the sum of all the deviation values is the smallest, so that the measured data can best match the design data, and the size error of the marine steel structure is represented by the magnitude and direction of the three-dimensional deviation. The three-dimensional deviation of each node is reflected objectively and actually, intuitive and reasonable, and the calculation program is written by AUTOCAD VBA, and the deviation value is quickly calculated, which has a good effect on on-site construction adjustment and error analysis.
Least Squares Coordinate Fitting, Design Data, Measured Data, Three-Dimensional Precision
To cite this article
Meng Linghe, Zhang Shijian, Xiao Liquan, Wang Xuelian, Yang Zilong, Wang Zhihong, A New Method for Analyzing the Dimension Error of Marine Steel Structures, International Journal of Oil, Gas and Coal Engineering. Vol. 7, No. 1, 2019, pp. 33-39. doi: 10.11648/j.ogce.20190701.16
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