| 摘要 |
The invention relates to a method for testing the stability of vertically braced masts wherein the relevant mast is subjected to the load of a bending force starting from a defined initial value, and increasing to, at most, a maximum pre-set testing force above its bracing, said mast thereby being laterally displaced. Subsequently, on termination of the load test procedure, said load is removed from the mast, whereby it is subjected to a restoring force which reduces to zero. Possible remaining lateral displacement of the mast as the restoring force returns to zero is determined and evaluated in conjunction with the load removal procedure to determine damage to the mast and/or its bracing. In order to further determine the type of damage to the mast, the mast is subjected to an additional bending force in the opposite direction of the first bending force, and then the load is once again removed from the mast in a second test procedure. In this case a possible remaining displacement of the mast/bracing system must be determined. The determined remaining displacements are evaluated in conjunction with the highest mast loads to determine the type of possible damage to the mast.
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