Abstract
Measurements of the axial force variation in guys of mast model subjected to wind load of three different wind structures are presented in the paper. The measurements have been carried out in the wind tunnel of Wind Engineering Laboratory at Cracow University of Techn ology. The subjects of the research are two guyed masts of triangular and square shaft cross-sections. Mean values of forces and standard deviations as functions of wind parameters and wind attack angle have been calculated. Significant influence of wind structure on the forces in guys has been confirmed as the result. Additionally there has been noticed possibility of mast vibrations at critical velocities.
Highlights
Guyed masts are used as supporting structures for radio and television antennas and mobile phone transmitters
The paper presents a study of axial force variation in guys of flexible mast models under the wind load, and indicates that the structure of the wind has significant effect on their values
The research was conducted on mast models with a height of 1.0 m, with two levels of guys and two types of shaft cross-sections: square and triangular (Fig.1)
Summary
Guyed masts are used as supporting structures for radio and television antennas and mobile phone transmitters These media are still being developed and we can expect more and more masts to be built. The paper presents a study of axial force variation in guys of flexible mast models under the wind load, and indicates that the structure of the wind has significant effect on their values. This issue and others (see [1, 2, 3]) related to the wind action on masts, are very important for designers of such structures. HBM Hottinger S2/100 force transducer with the range of measured forces: -100 ÷ +100 N
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