Sections

Created on Wed Jan 16 18:02:25 2019

@author: lpaone

`ConcreteSection`

Class that instantiate a general concrete section

Reference for geometry is:

             ----------------
             |              |
             |              |
             |    Y ^       |
             |      |       |
             |      |   X   |
             |      O--->   |
             |              |
             |              |
             |              |
             ----------------

for forces and moments (N compression negative)

             ----------------
             |              |
             |              |
             |      --.     |
             |  My     \    |
             |  <<--O   ;   |
             |      |  /    |
             |     <--      |
             |  N = Fx < 0  |
             |              |
             ----------------

`calBarycenter(alphaWeight=False, weights=False)`

Calculate barycenter for ideal section using homogeneization

Calculate barycenter for ideal section using homogeneization. For normal use and not for design alphaWeight and weights should be left False.

Parameters:

Name	Type	Description	Default
`alphaWeight`			`False`
`weights`			`False`

Returns:

Type	Description
`Point2d`	A point 2D that represent barycenter

`calProp_Ihx(alphaWeight=False, weights=False, barycenter=False)`

Function calculates moment of inertia along x-axis where x-axis is horizontal axis that goes through xhg-axis. This axis is the barycenter axis of homogeneized section Args: barycenter: if True prop will be calculated on barycentric axis alphaWeight: moltiplication factor for all rebars weights: TODO

Returns:

Name	Type	Description
`float`	`float`	barycenter axis of homogeneized section

`getConcrStress()`

Retrive concrete stresses ordered as shape vertex order

For example in rectangular shape order will be:

index	shape vertex
i=0	'BL'
i=1	'BR'
i=2	'TL'
i=3	'TR'

Returns: