axial_compression_force: Calculate the axial compression force
In shadowboxingskills/civilR: Civil Engineering R package

Description Usage Arguments Details Value

Compute Axial Compression Force, N_{ed} [kN], for member without including Temperature effect. Used as trial for the top level strut where temperature changes could not be neglected. As well can be used to calculate final N_{ed} for struts from low levels of excavation, where temperature effect could be neglected.

axial_compression_force(
  isTopLevel = T,
  DL = 1,
  LL = 1,
  L = 12.5,
  P = 247,
  theta = 90,
  spacing = 6,
  Lcry = 12.7,
  Lcrz = 1,
  steel_grade = "S355",
  member_type = "UB",
  alpha_T = 1.2e-05,
  delta_T = 10,
  k_T = 0.8,
  E = 210,
  AL = 50,
  gamma = 1.35,
  list_reference_tables
)

`isTopLevel`	Is member located at top level? [boolean]
`DL`	Dead load / self-weight of member [kN/m]
`LL`	Live load / imposed load [kN/m]
`L`	Total length of member [m]
`P`	Axial compression force of member per meter [kN/m]
`theta`	Angle to wall [deg]
`spacing`	spacing [m]
`Lcry`	critical length major axis [m]
`Lcrz`	critical length minor axis [m]
`steel_grade`	steel_grade [N/{mm}^2], categorical: 'S355' or 'S275'
`member_type`	member_type, categorical: 'UC' or 'UB'
`alpha_T`	Thermal coef. of expansion [degC]
`delta_T`	Change in temperature from the Installation temperature [degC]
`k_T`	Coefficient Of Temperature Effect [dimensionless]
`E`	Young's Modulus of Elasticity [GPa]
`AL`	Accidental Impact Load [kN/m]
`gamma`	Partial factor for action [dimensionless], as per EN 1990:2002 standard
`list_reference_tables`	List of reference tables

First of all function check which combination govern in ULS (Ultimate Limit State) without including Temperature load, TL [kN]. Then include TL calculations for Load Combinations applying partial factors based on the Table A1.2(B), EN1990-2002, p53 Compare maximum from ULS and ALS to define which mistake could govern.