Abstract
Critically analyzes the total safety coefficient and the partial random and determined safety coefficients used in mine component calculations by the semi-probabilistic method of limit states. Values of safety coefficients for construction steels, partial and calculated total safety coefficient for cages (skips), ropes, rope pulley and tower type head frames are shown in tables and compared with safety coefficients required by regulations. It is suggested to represent the total safety coefficient as a product of three partial coefficients: the coefficient for transition from the immediate strength of steel to the yield point, the coefficient for transition from static to dynamic loads and a safety margin for unforeseen effects (imperfect calculation models, human error, etc.). The conclusion is reached that the safety coefficients required by regulations are not correlated with the degree of accuracy (adequacy) of the calculation model used. 5 refs.
Mendera, Z
[1]
- Politechnika Krakowska (Poland)
Citation Formats
Mendera, Z.
Safety coefficients of mine winders.
Poland: N. p.,
1990.
Web.
Mendera, Z.
Safety coefficients of mine winders.
Poland.
Mendera, Z.
1990.
"Safety coefficients of mine winders."
Poland.
@misc{etde_5984112,
title = {Safety coefficients of mine winders}
author = {Mendera, Z}
abstractNote = {Critically analyzes the total safety coefficient and the partial random and determined safety coefficients used in mine component calculations by the semi-probabilistic method of limit states. Values of safety coefficients for construction steels, partial and calculated total safety coefficient for cages (skips), ropes, rope pulley and tower type head frames are shown in tables and compared with safety coefficients required by regulations. It is suggested to represent the total safety coefficient as a product of three partial coefficients: the coefficient for transition from the immediate strength of steel to the yield point, the coefficient for transition from static to dynamic loads and a safety margin for unforeseen effects (imperfect calculation models, human error, etc.). The conclusion is reached that the safety coefficients required by regulations are not correlated with the degree of accuracy (adequacy) of the calculation model used. 5 refs.}
journal = []
volume = {28:3/4}
place = {Poland}
year = {1990}
month = {Mar}
}
title = {Safety coefficients of mine winders}
author = {Mendera, Z}
abstractNote = {Critically analyzes the total safety coefficient and the partial random and determined safety coefficients used in mine component calculations by the semi-probabilistic method of limit states. Values of safety coefficients for construction steels, partial and calculated total safety coefficient for cages (skips), ropes, rope pulley and tower type head frames are shown in tables and compared with safety coefficients required by regulations. It is suggested to represent the total safety coefficient as a product of three partial coefficients: the coefficient for transition from the immediate strength of steel to the yield point, the coefficient for transition from static to dynamic loads and a safety margin for unforeseen effects (imperfect calculation models, human error, etc.). The conclusion is reached that the safety coefficients required by regulations are not correlated with the degree of accuracy (adequacy) of the calculation model used. 5 refs.}
journal = []
volume = {28:3/4}
place = {Poland}
year = {1990}
month = {Mar}
}