Calculate the index Jiangmen steel

　　Index Calculation
E - modulus of elasticity of steel;
Ec-- elastic modulus of concrete;
G - shear modulus of steel;
Tension capacity design value Nat-- one anchor;
Nbt, Nbv, tensile Nbc-- a bolt, shear and pressure bearing capacity design value;
Nrt, Nrv, Nrc-- a rivet tensile, shear and pressure-bearing capacity design value;
Ncv-- composite structures design value of shear bearing capacity of a shear connector member;
NpjtNpjc-- tension and compression in the branch pipe bearing capacity design value at the node;
Sb-- lateral stiffness of the support structure (roll angle producing unit horizontal forces);
F - steel tensile, compressive and flexural strength design value;
fv-- design value of shear strength of steel;
Fce-- end surface bearing strength steel design value;
The design value of the tensile strength of steel fst--;
Fy-- yield strength steel (or yield point);
Tensile strength design value fat-- anchor;
Fbtfbvfbc-- tensile bolts, shear and bearing strength design value;
frtfrvfrc-- rivet tensile, shear and bearing strength Hang design value;
fwtfwvfwc-- butt weld tensile, shear and compressive strength design value;
fwt-- fillet weld tensile, shear and compressive strength design value;
fc - design value of compressive strength of concrete;
Δu-- floor layer between displacement;
[ΥQ] - considering only variable load deflection standard value generated allowable value;
[ΥT] - taking account of the permissible value of permanent and variable load standard value generated deflection;
σ - normal stress;
σc-- local compressive stress;
σf-- perpendicular to the longitudinal direction of the fillet welds, the weld stress by effective section calculated;
Δσ-- calculated stress amplitude fatigue or stress amplitude conversion;
Δσ-- amplitude fatigue equivalent stress amplitude;
[Δσ] - fatigue allowable stress amplitude;
Σcrσc.crτcr-- plate in bending stress, critical stress local compression and shear stresses acting alone when;
τ - shear stress;
τf-- fillet weld along the longitudinal direction of the shear stress calculated by the effective cross section of weld;
ρ - mass density.