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US 6,553,320 B1Granted
Method for testing the stability of vertically braced masts
OwnerMathias Roch, Oliver Rochinventors
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OwnerMathias Roch, Oliver Rochinventors
Estimating the term…
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 a maximum pre-set testing force above its bracing, the mast thereby being laterally displaced. The load is then removed from the mast and is subjected to a restoring force which reduces to zero. The mast is evaluated in conjunction with the load removal procedure to determine damage to the mast and/or its bracing. The mast is subjected to an additional bending force in the opposite direction of the first bending force, and the load is once again removed from the mast in a second test procedure. A possible remaining displacement of the mast/bracing system is evaluated in conjunction with the highest mast loads to determine the type of possible damage to the mast.
A method for testing the stability of vertically anchored masts in which the mast above its anchoring is loaded with an increasing bending force F1 proceeding from a defined initial value until a maximum, predetermined test force FPmax and at the same time is laterally deflected and in which the mast after completion of the loading procedure is unloaded and with this is subjected to a restoring force F2 reducing to zero, wherein in combination with the unloading procedure exclusively a lateral deflection S2 of the mast remaining at F2=zero is ascertained and is evaluated as damage to the mast and/or its anchoring;
A method for testing the stability of vertically anchored masts in which the mast above its anchoring in a first testing procedure is loaded with an increasing bending force F1 measured from a defined initial value until a maximum predetermined test force FPmax at the same time is laterally deflected and in which the mast after completion of the loading procedure is unloaded and with this is subjected to a restoring force F2 reducing to zero, and in which the mast after the first testing procedure in the same testing plane in a second testing procedure is loaded with a second test force F3 directed oppositely to the first test force F1 and with this is laterally deflected, whereupon the mast is again unloaded and with this is subjected to a reducing restoring force F4 reducing to zero, wherein in combination with the loading procedures at least one of the highest test force FP or at least a part course of the loading characteristic curve of the second testing procedure is determined, wherein in combination with the unloading procedures exclusively a possible lateral deflection S2, S4 of the mast remaining at F2=0 and/or F4=0 is ascertained and wherein the results of both ascertainings are evaluated as damage to the mast and/or as a damage to its anchoring.
Dependencies are inferred from the claim text.