Download User`s Guide

VK STEEL
DESCRIPTION AND ANALYSIS OF STEEL CONSTRUCTIONS
DIN Eurocode EC3, no obvious change will take place on the
code tabs, but the contents of “Material Properties” tab will
change.
CHOICES FOR NEAK-CYPRUS CODE
1.
Choose a method of distributing the horizontal seismic
load. You have the
following options:
a. Equivalent Static Analysis -Equation 3.7(NEAK) or 3.15 (EAK)
b.Equivalent Static Analysis -Equation 3.6(NEAK) or 3.14 (EAK)
c. Response Spectrum Method (Gr.Code)
d. Cyprus Code (Distribution of seismic load according to
equation 4.2.4.1.1, paragraph 4.2.4.1 of the Cyprian Seismic
Code).
3.
LC Factor (Live). It is the factor of the live load’s
participation the moment the earthquake is taking place.
This value enters into the seismic factor’s estimation
as well as into the live load’s safety factors but in seismic
loading combination
exclusively. According to NEAK
requirements, at the time of the earthquake, we
should consider that a 30% of the live load is participating.
Therefore, the value usually typed is 0, 3.
4.
Thermal Loading Value (Celsius)Type in the value of the
suggested thermal loading in the form of temperature
difference. The unit in use is Celsius degrees ºC (e.g.
∆Θ=30).
•
On the vertical right side of the tab you will find the antiseismic factor equation’s parameters.
At this stage, the seismic factors Rd(t)g on the main directions X
and Y are calculated as well as the ratio Rd(t)/Bd(t) which is
irrelevant to the period (see equation 2.1 of
NEAK). These
parameters are analytically explained in NEAK’s chapter 2.
5.
96
Zone: the seismically dangerous zone from which factor a
results automatically (factor a: soil acceleration due to
gravity accelogram, see Table 2.2 of NEAK). Factor’s a
CHAPTER 4 “PARAMETERS” Menu