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formula_4_4n

codes.eurocode.en_1992_1_1_2004.chapter_4_durability_and_cover.formula_4_4n

Formula 4.4N from EN 1992-1-1:2004: Chapter 4 - Durability and cover to reinforcement.

Classes:

codes.eurocode.en_1992_1_1_2004.chapter_4_durability_and_cover.formula_4_4n.Form4Dot4nCheckExecutionTolerances 

Form4Dot4nCheckExecutionTolerances(delta_cdev: MM)

Bases: Formula

Class representing formula 4.4N for calculating the allowance in design for execution tolerances [\(\Delta c_{dev}\)] [\(mm\)]. Used, where it can be assured that a very accurate measurement device is used for monitoring and non conforming members are rejected (e.g. precast elements).

EN 1992-1-1:2004 art.4.4.1.3 (3) - formula (4.4N)

Parameters:

  • delta_cdev (MM) –

    [\(\Delta c_{dev}\)] Concrete cover including execution tolerances [\(mm\)].

Source code in blueprints/codes/eurocode/en_1992_1_1_2004/chapter_4_durability_and_cover/formula_4_4n.py 
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def __init__(
    self,
    delta_cdev: MM,
) -> None:
    super().__init__()
    self.delta_cdev = delta_cdev

codes.eurocode.en_1992_1_1_2004.chapter_4_durability_and_cover.formula_4_4n.Form4Dot4nCheckExecutionTolerances.latex 

latex(n: int = 3) -> LatexFormula

Returns LatexFormula object for formula 4.3N.

Source code in blueprints/codes/eurocode/en_1992_1_1_2004/chapter_4_durability_and_cover/formula_4_4n.py 
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def latex(self, n: int = 3) -> LatexFormula:
    """Returns LatexFormula object for formula 4.3N."""
    _equation: str = r"0 \leq \Delta c_{dev} \leq 10"
    _numeric_equation: str = latex_replace_symbols(
        _equation,
        {
            r"\Delta c_{dev}": f"{self.delta_cdev:.{n}f}",
        },
        False,
    )
    return LatexFormula(
        return_symbol=r"CHECK",
        result="OK" if self.__bool__() else "\\text{Not OK}",
        equation=_equation,
        numeric_equation=_numeric_equation,
        comparison_operator_label="\\to",
        unit="",
    )