## Design Of Conecylinder Intersections [2

Notation

Pe = equivalent internal pressure, psi

P = internal pressure, psi

Px = external pressure, psi

P!_2 = longitudinal force due to internal or external pressure, lb/in.-circumference

A = ASME external pressure factor

Aa = cross-sectional area of ring, in.2

Af, — excess metal area available, in.2

AT = equivalent area of composite shell, cone, and ring, in.2

As = required area of reinforcement at small end of cone, in.2

Al = required area of reinforcement at large end of cone, in.2

Ar = minimum required cross-sectional area of ring, in.2

B = allowable longitudinal compressive stress, psi

M!_2 = longitudinal bending moment due to wind or seismic at Elevation 1 or 2, in.-Ib

M = equivalent radius of large end, in.

N = equivalent radius of small end, in.

Vi_4 = longitudinal loads due to weight plus moment, lb/in.-circumference

Hpi_2 = radial thrust due to internal or external pressure, lb/in.-circumference

Hi_4 = radial thrust due to weight and moment, lb/ in.-circumference

Hc = circumferential load due to internal or external pressure, lb/in.-circumference

FL1_2= total longitudinal load on cylinder at Elevation 1 or 2, lb/in.-circumference

Flo = longitudinal load in cone, lb/in.-circumference fs = equivalent axial load at junction of small end, lb/in.

fL = equivalent axial load at junction of large end, lb/in.

E[_2 = joint efficiency of longitudinal welded joints in shell or cone

Es,Ec,Er = modulus of elasticity of shell, cone and ring, respectively, at design temperature, psi

Ss,Sc,Sr = allowable stress, tension, of shell, cone and ring, respectively, at design temperature, psi

Wj.2 = dead weight at Elevation 1 or 2, lb

CTl = longitudinal stress in shell, psi alc = longitudinal stress in cone, psi ctc = circumferential stress, psi

I = moment of inertia of ring, in.4

Ir = moment of inertia required of ring, in.4

te = excess metal thickness available for reinforcement, in.

t^ = thickness required, shell, in.

trc = thickness required, cone, in.

A,m,K,X,Y = factors as defined herein

Elevation 1

Elevation 2

^mri

Dimensions

For intermediate stitleners on cone

Figure 4-4. Dimension and forces of cone-cylinder intersections.

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