sdutil2

Eventually will document sdutil2 - for now just some examples.

NOTE: The slope-deflection sign convention may seem strange to those used to matirx stiffness analysis, but it makes sense. None of the slope deflection equations explicitly state a member 'direction' and it doesn't matter. For example, whether you consider the column AB as going from A to B or as going from B to A, a +ive shear at end A is still directed toward the left. In matrix analysis, that direction matters.



In [1]:

    
import sys
m = 'sdutil2'
if m in sys.modules:
    del sys.modules[m]   # so we can easily re-import the library if it changes during debugging
import sdutil2 as sd



In [2]:

    
sd.FEF.udl(4,72)









    Out[2]:





EF(4,-96.0,96.0,144.0,-144.0)



In [3]:

    
x = sd.FEF.lvl(4,72,0)
x









    Out[3]:





EF(4,-57.6,38.4,100.8,-43.2)



In [4]:

    
y = sd.FEF.lvl(4,0,72)
y









    Out[4]:





EF(4,-38.4,57.6,43.19999999999999,-100.80000000000001)



In [5]:

    
x+y









    Out[5]:





EF(4,-96.0,96.0,144.0,-144.0)



In [6]:

    
(x+y)*10









    Out[6]:





EF(4,-960.0,960.0,1440.0,-1440.0)



In [7]:

    
10*x + y









    Out[7]:





EF(4,-614.4,441.6,1051.2,-532.8)



In [8]:

    
s1 = sd.FEF.lvl(4,72,0,a=0,b=2.5)
s2 = sd.FEF.lvl(4,0,72,a=0,b=2.5)
s3 = sd.FEF.lvl(4,72,0,a=2.5,b=1.5)
s4 = sd.FEF.lvl(4,0,72,a=2.5,b=1.5)
s1+s2+s3+s4









    Out[8]:





EF(4,-96.0,96.0,144.0,-144.0)



In [9]:

    
s1 = sd.FEF.lvl(4,72,0,a=0,b=1.5)
s2 = sd.FEF.lvl(4,0,72,a=0,b=1.5)
s3 = sd.FEF.lvl(4,62,10,a=1.5,b=1)
s4 = sd.FEF.lvl(4,10,62,a=1.5,b=1)
s5 = sd.FEF.lvl(4,72,0,a=2.5,b=1.5)
s6 = sd.FEF.lvl(4,0,72,a=2.5,b=1.5)
s1+s2+s3+s4+s5+s6









    Out[9]:





EF(4,-96.0,96.0,144.0,-144.0)



In [10]:

    
sd.FEF.lvl(10,15,a=0,b=8)









    Out[10]:





EF(10,-121.6,102.4,73.92,-46.08)



In [11]:

    
sd.FEF.lvl(10,15,a=0,c=2)









    Out[11]:





EF(10,-121.6,102.4,73.92,-46.08)



In [12]:

    
sd.FEF.lvl(10,15,b=8,c=2)









    Out[12]:





EF(10,-121.6,102.4,73.92,-46.08)



In [13]:

    
sd.FEF.lvl(10,15,a=0,b=8,c=2)









    Out[13]:





EF(10,-121.6,102.4,73.92,-46.08)



In [14]:

    
try:
    sd.FEF.lvl(10,15,a=0,b=8,c=3)
except Exception as e:
    print('***** Error:',str(e))









    



***** Error: Cannot specify all of a, b & c



In [ ]:



In [ ]: