Final reduction of dimensions in the cross-section
Last modified by Fredrik Lagerström on 2020/05/28 17:45
Contents
This chapter covers the theory behind reduction of the cross-section.
Rectangular cross-section
bred = b - (δV + δH) a
hred = h - (δT + δB) a
Plate section and hollowcore
hred = h - (δT + δB) a
Circular cross-section
dred = d - 2a
T-type cross-section and F-type cross-section
hf,red = hf - (δT + δB) aflange
bf,red = bf - (δL + δR) aflange
As an approximation, bf increases/decreases according to the strength parameters between the flange and the body.
L-type cross-section
bred = b - (δL + δB) abody
hred = h - δT abody - δB aflange
bf,red = bf - (δL abody + δR aflange)
As an approximation, bf increases/decreases according to the strength parameters between the flange and the body.
For the entire cross-section the reduced parameters of the body are used.
fcd(θM) = kc(θM,body) fcd
Ecd(θM) = kc(θM,body)2 Ecd(θM)