"EXPERIENCE, SERVICE, SOLUTIONS"

CASPER, PHILLIPS & ASSOCIATES

Example Module

20. CPA/STAYS FORESTAY & BACKSTAY WORKBOOK

EXPLANATION OF CELLS (Stays worksheet), Continued

Cell Description

I2 Units (either Metric, SI or English).
F3 Modulus of elasticity, E, 20500 kN/cm2 for Metric or SI units or 29600 ksi for English units.
C6 Steel density, 0.000077 kN/cm3 for Metric or SI units or 0.0002836 kips/in3. The member dead load per unit length is calculated by multiplying the density x the area.

I3 Allowable stress (read from stress output file), F allow.

L3 Total length of the catenary member, L total.

L4 Horizontal length of the catenary member, L horiz.

L5 Pin-to-pin length of an individual member, L indiv.

I4 Maximum offset of eccentric bearing, e.

I6 Length from pin to end of the connection plate (start of the member), L end.

F6 Wind load in X direction on the forestay, W wl.

B8 Fatigue code governing the design of the member. Programmed codes are "BS2573", "BS5400", "FEM" and "JIS".

F8 Name of the spectrum file.

G8 Class of details on the members. Classes vary depending on the fatigue code.

Code
------
BS2573

Acceptable Classes
-------------------
A, B, C, D, E, F, G.
Notes: Only detail classes F and G have been programmed, so values for classes A-E are the same as class F.

BS5400

A, B, C, D, E, F, F2, G.

FEM

K0, K1, K2, K3, K4.

JIS

a, b, c, d.

[I9] Yield stress of stay, Fy, [required for JIS Fatigue only].
If not present, the workbook prompts for input.

Cell	Description
I2	Units (either Metric, SI or English). F3 Modulus of elasticity, E, 20500 kN/cm2 for Metric or SI units or 29600 ksi for English units. C6 Steel density, 0.000077 kN/cm3 for Metric or SI units or 0.0002836 kips/in3. The member dead load per unit length is calculated by multiplying the density x the area.
I3	Allowable stress (read from stress output file), F allow.
L3	Total length of the catenary member, L total.
L4	Horizontal length of the catenary member, L horiz.
L5	Pin-to-pin length of an individual member, L indiv.
I4	Maximum offset of eccentric bearing, e.
I6	Length from pin to end of the connection plate (start of the member), L end.
F6	Wind load in X direction on the forestay, W wl.
B8	Fatigue code governing the design of the member. Programmed codes are "BS2573", "BS5400", "FEM" and "JIS".
F8	Name of the spectrum file.
G8	Class of details on the members. Classes vary depending on the fatigue code.

EXPLANATION OF CELLS - MAIN PORTION OF TABLE

Code ------ BS2573	Acceptable Classes ------------------- A, B, C, D, E, F, G. Notes: Only detail classes F and G have been programmed, so values for classes A-E are the same as class F.
BS5400	A, B, C, D, E, F, F2, G.
FEM	K0, K1, K2, K3, K4.
JIS	a, b, c, d.