阿拉伯联合酋长国Ras-Al-Khaimah纪录跨土钢埋地结构施工过程中的壳变形

IF 0.7 Q4 MECHANICS Studia Geotechnica et Mechanica Pub Date : 2023-09-01 DOI:10.2478/sgem-2023-0007
Czesław Machelski, Piotr Tomala
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引用次数: 0

摘要

摘要:本文提出的算法是对结构周边的测量点坐标形式的数据进行处理。这里研究钢壳变形的几何参数是曲率的变化。它用于估计波纹钢壳的弯矩,从而估计波纹钢壳的法向应力。所分析结构的算例计算结果表明,有可能确定极值位置。为此,密集布置测点和采用精密大地测量技术是必要的。在应力估计中,重要的是大地测量基础的校正。这是由于这样一个事实,即在初始测量点不位于圆的一部分作为参考曲线,用于确定壳的变形。
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Shell Deformation During the Construction of Record Span Soil-steel Buried Structure in Ras-Al-Khaimah (UAE)
Abstract The algorithm presented in this paper concerns the processing of data in the form of coordinates of measurement points located around the structure periphery, obtained from the geodetic measurements. The geometric parameter used here to study the deformation of the steel shell is the change of curvature. It is used to estimate the bending moment and hence the normal stress in the corrugated steel shell. The results given in the examples of calculations of the analyzed structure show the possibility of determining places with extreme values. For this purpose, a dense layout of measuring points and use the precision geodesy technique is necessary. Of significant importance in stress estimation is the correction of the geodetic measurement base. This is due to the fact that the points in the initial measurement do not lie on a section of the circle as a reference curve, used to determine the deformation of the shell.
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来源期刊
CiteScore
1.30
自引率
16.70%
发文量
20
审稿时长
16 weeks
期刊介绍: An international journal ‘Studia Geotechnica et Mechanica’ covers new developments in the broad areas of geomechanics as well as structural mechanics. The journal welcomes contributions dealing with original theoretical, numerical as well as experimental work. The following topics are of special interest: Constitutive relations for geomaterials (soils, rocks, concrete, etc.) Modeling of mechanical behaviour of heterogeneous materials at different scales Analysis of coupled thermo-hydro-chemo-mechanical problems Modeling of instabilities and localized deformation Experimental investigations of material properties at different scales Numerical algorithms: formulation and performance Application of numerical techniques to analysis of problems involving foundations, underground structures, slopes and embankment Risk and reliability analysis Analysis of concrete and masonry structures Modeling of case histories
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