FibersIShape Class Reference

Class that stores funcions, material properties, geometric and mechanical parameters for a steel I shape (non double symmetric) fiber section. More...

Inheritance diagram for FibersIShape:

Public Member Functions
def	__init__ (self, int ID, d, bf_t, bf_b, tf_t, tf_b, tw, int top_flange_mat_ID, int bottom_flange_mat_ID, int web_mat_ID, list discr_top_flange, list discr_bottom_flange, list discr_web, GJ=0.0)
	Constructor of the class. More...
def	CreateFibers (self)
	Method that initialise the fiber by calling the OpenSeesPy commands. More...
def	ReInit (self)
	Implementation of the homonym abstract method. More...
def	ShowInfo (self, plot=False, block=False)
	Implementation of the homonym abstract method. More...
def	UpdateStoredData (self)
	Implementation of the homonym abstract method. More...

Public Attributes
	bf_b
	bf_t
	bottom_flange_mat_ID
	d
	data
	discr_bottom_flange
	discr_top_flange
	discr_web
	fib_sec
	GJ
	ID
	Initialized
	section_name_tag
	tf_b
	tf_t
	top_flange_mat_ID
	tw
	web_mat_ID

Detailed Description

Class that stores funcions, material properties, geometric and mechanical parameters for a steel I shape (non double symmetric) fiber section.

Coordinates: plotting coordinte (x, y) = fiber section coordinate (z, y) = (-x, y). For more information, see the OpenSeesPy documentation.

Parameters

Fibers

Parent abstract class.

Definition at line 465 of file Fibers.py.

Constructor & Destructor Documentation

__init__()

def __init__	(		self,
		int	ID,
			d,
			bf_t,
			bf_b,
			tf_t,
			tf_b,
			tw,
		int	top_flange_mat_ID,
		int	bottom_flange_mat_ID,
		int	web_mat_ID,
		list	discr_top_flange,
		list	discr_bottom_flange,
		list	discr_web,
			GJ = 0.0
	)

Constructor of the class.

Parameters

ID	(int): Unique fiber section ID.
d	(float): Depth of the section.
bf_t	(float): Top flange's width of the section
bf_b	(float): Bottom flange's width of the section
tf_t	(float): Top flange's thickness of the section
tf_b	(float): Bottom flange's thickness of the section
tw	(float): Web's thickness of the section
top_flange_mat_ID	(int): ID of material model that will be assigned to the top flange fibers.
bottom_flange_mat_ID	(int): ID of material model that will be assigned to the bottom flange fibers.
web_mat_ID	(int): ID of material model that will be assigned to the web fibers.
discr_top_flange	(list): List with two entries: discretisation in IJ (x/z) and JK (y) for the top flange.
discr_bottom_flange	(list): List with two entries: discretisation in IJ (x/z) and JK (y) for the bottom flange.
discr_web	(list): List with two entries: discretisation in IJ (x/z) and JK (y) for the web.
GJ	(float, optional): Linear-elastic torsional stiffness assigned to the section. Defaults to 0.0, assume no torsional stiffness.

Exceptions

NegativeValue	ID needs to be a positive integer.
NegativeValue	d needs to be positive.
NegativeValue	bf_t needs to be positive.
NegativeValue	bf_b needs to be positive.
NegativeValue	tf_t needs to be positive.
NegativeValue	tf_b needs to be positive.
NegativeValue	tw needs to be positive.
NegativeValue	top_flange_mat_ID needs to be a positive integer.
NegativeValue	bottom_flange_mat_ID needs to be a positive integer.
NegativeValue	web_mat_ID needs to be a positive integer.
WrongDimension	discr_top_flange has a length of 2.
WrongDimension	discr_bottom_flange has a length of 2.
WrongDimension	discr_web has a length of 2.
NegativeValue	GJ needs to be positive.
InconsistentGeometry	The sum of the flanges thickness can't be bigger than d.

Reimplemented in FibersIShapeSteelIShape.

Definition at line 472 of file Fibers.py.

        discr_top_flange: list, discr_bottom_flange: list, discr_web: list,  GJ = 0.0):
        """
        Constructor of the class.
 
        @param ID (int): Unique fiber section ID.
        @param d (float): Depth of the section.
        @param bf_t (float): Top flange's width of the section
        @param bf_b (float): Bottom flange's width of the section
        @param tf_t (float): Top flange's thickness of the section
        @param tf_b (float): Bottom flange's thickness of the section
        @param tw (float): Web's thickness of the section
        @param top_flange_mat_ID (int): ID of material model that will be assigned to the top flange fibers.
        @param bottom_flange_mat_ID (int): ID of material model that will be assigned to the bottom flange fibers.
        @param web_mat_ID (int): ID of material model that will be assigned to the web fibers.
        @param discr_top_flange (list): List with two entries: discretisation in IJ (x/z) and JK (y) for the top flange.
        @param discr_bottom_flange (list): List with two entries: discretisation in IJ (x/z) and JK (y) for the bottom flange.
        @param discr_web (list): List with two entries: discretisation in IJ (x/z) and JK (y) for the web.
        @param GJ (float, optional): Linear-elastic torsional stiffness assigned to the section. Defaults to 0.0, assume no torsional stiffness.
 
        @exception NegativeValue: ID needs to be a positive integer.
        @exception NegativeValue: d needs to be positive.
        @exception NegativeValue: bf_t needs to be positive.
        @exception NegativeValue: bf_b needs to be positive.
        @exception NegativeValue: tf_t needs to be positive.
        @exception NegativeValue: tf_b needs to be positive.
        @exception NegativeValue: tw needs to be positive.
        @exception NegativeValue: top_flange_mat_ID needs to be a positive integer.
        @exception NegativeValue: bottom_flange_mat_ID needs to be a positive integer.
        @exception NegativeValue: web_mat_ID needs to be a positive integer.
        @exception WrongDimension: discr_top_flange has a length of 2.
        @exception WrongDimension: discr_bottom_flange has a length of 2.
        @exception WrongDimension: discr_web has a length of 2.
        @exception NegativeValue: GJ needs to be positive.
        @exception InconsistentGeometry: The sum of the flanges thickness can't be bigger than d.
        """
        # Check
        if ID < 1: raise NegativeValue()
        if d < 0: raise NegativeValue()
        if bf_t < 0: raise NegativeValue()
        if bf_b < 0: raise NegativeValue()
        if tf_b < 0: raise NegativeValue()
        if tf_t < 0: raise NegativeValue()
        if tw < 0: raise NegativeValue()
        if top_flange_mat_ID < 1: raise NegativeValue()
        if bottom_flange_mat_ID < 1: raise NegativeValue()
        if web_mat_ID < 1: raise NegativeValue()
        if len(discr_top_flange) != 2: raise WrongDimension()
        if len(discr_bottom_flange) != 2: raise WrongDimension()
        if len(discr_web) != 2: raise WrongDimension()
        if GJ < 0: raise NegativeValue()
        if tf_t+tf_b >= d: raise InconsistentGeometry()
 
        # Arguments
        self.ID = ID
        self.d = d
        self.bf_t = bf_t
        self.bf_b = bf_b
        self.tf_t = tf_t
        self.tf_b = tf_b
        self.tw = tw
        self.top_flange_mat_ID = top_flange_mat_ID
        self.bottom_flange_mat_ID = bottom_flange_mat_ID
        self.web_mat_ID = web_mat_ID
        self.discr_top_flange = copy(discr_top_flange)
        self.discr_bottom_flange = copy(discr_bottom_flange)
        self.discr_web = copy(discr_web)
        self.GJ = GJ
 
        # Initialized the parameters that are dependent from others
        self.section_name_tag = "None"
        self.Initialized = False
        self.ReInit()
 

Member Function Documentation

CreateFibers()

def CreateFibers

(

self

)

Method that initialise the fiber by calling the OpenSeesPy commands.

Definition at line 631 of file Fibers.py.

    def CreateFibers(self):
        """
        Method that initialise the fiber by calling the OpenSeesPy commands.
        """
        create_fiber_section(self.fib_sec)
        self.Initialized = True
        self.UpdateStoredData()
 
 

ReInit()

def ReInit

(

self

)

Implementation of the homonym abstract method.

See parent class DataManagement for detailed information.

Definition at line 546 of file Fibers.py.

    def ReInit(self):
        """
        Implementation of the homonym abstract method.
        See parent class DataManagement for detailed information.
        """
        # Memebers
        if self.section_name_tag != "None": self.section_name_tag = self.section_name_tag + " (modified)"
        
        # Parameters
        z1 = self.tw/2
        y1 = (self.d - self.tf_t - self.tf_b)/2
 
        # Create the flange top
        flange_top = [y1, -self.bf_t/2, y1+self.tf_t, self.bf_t/2]
        flange_top_cmd = ['patch', 'rect', self.top_flange_mat_ID, *self.discr_top_flange, *flange_top]
 
        # Create the flange bottom
        flange_bottom = [-y1-self.tf_b, -self.bf_b/2, -y1, self.bf_b/2]
        flange_bottom_cmd = ['patch', 'rect', self.bottom_flange_mat_ID, *self.discr_bottom_flange, *flange_bottom]
 
        # Create the web
        web = [-y1, -z1, y1, z1]
        web_cmd = ['patch', 'rect', self.web_mat_ID, *self.discr_web, *web]
 
        self.fib_sec = [['section', 'Fiber', self.ID, '-GJ', self.GJ], 
            flange_top_cmd, web_cmd, flange_bottom_cmd]
 
        # Data storage for loading/saving
        self.UpdateStoredData()
 
 

ShowInfo()

def ShowInfo	(		self,
			plot = False,
			block = False
	)

Implementation of the homonym abstract method.

See parent class DataManagement for detailed information.

Parameters

plot	(bool, optional): Option to show the plot of the fiber. Defaults to False.
block	(bool, optional): Option to wait the user command 'plt.show()' (avoiding the stop of the program everytime that a plot should pop up). Defaults to False.

Definition at line 602 of file Fibers.py.

    def ShowInfo(self, plot = False, block = False):
        """
        Implementation of the homonym abstract method.
        See parent class DataManagement for detailed information.
        
        @param plot (bool, optional): Option to show the plot of the fiber. Defaults to False.
        @param block (bool, optional): Option to wait the user command 'plt.show()' (avoiding the stop of the program everytime that a plot should pop up). Defaults to False.
        """
        print("")
        print("Requested info for FibersRect, ID = {}".format(self.ID))
        print("Section associated: {} ".format(self.section_name_tag))
        print("Depth d = {} mm and web thickness tw = {} mm".format(self.d/mm_unit, self.tw/mm_unit))
        print("Top flange width bf_t = {} mm and thickness tf_t = {} mm".format(self.bf_t/mm_unit, self.tf_t/mm_unit))
        print("Bottom flange width bf_b = {} mm and thickness tf_b = {} mm".format(self.bf_b/mm_unit, self.tf_b/mm_unit))
        print("Web material model ID = {}".format(self.web_mat_ID))
        print("Top flange material model ID = {}".format(self.top_flange_mat_ID))
        print("Bottom flange material model ID = {}".format(self.bottom_flange_mat_ID))
        print("Discretisation in the web [IJ or x/z dir, JK or y dir] = {}".format(self.discr_web))
        print("Discretisation in the top flange [IJ or x/z dir, JK or y dir] = {}".format(self.discr_top_flange))
        print("Discretisation in the bottom flange [IJ or x/z dir, JK or y dir] = {}".format(self.discr_bottom_flange))
        print("")
 
        if plot:
            plot_fiber_section(self.fib_sec, matcolor=['r', 'b', 'g', 'k'])
            
            if block:
                plt.show()
 
 

UpdateStoredData()

def UpdateStoredData

(

self

)

Implementation of the homonym abstract method.

See parent class DataManagement for detailed information.

Definition at line 578 of file Fibers.py.

    def UpdateStoredData(self):
        """
        Implementation of the homonym abstract method.
        See parent class DataManagement for detailed information.
        """
        self.data = [["INFO_TYPE", "FibersIShape"], # Tag for differentiating different data
            ["ID", self.ID],
            ["section_name_tag", self.section_name_tag],
            ["d", self.d],
            ["bf_t", self.bf_t],
            ["bf_b", self.bf_b],
            ["tf_t", self.tf_t],
            ["tf_b", self.tf_b],
            ["tw", self.tw],
            ["GJ", self.GJ],
            ["top_flange_mat_ID", self.top_flange_mat_ID],
            ["bottom_flange_mat_ID", self.bottom_flange_mat_ID],
            ["web_mat_ID", self.web_mat_ID],
            ["discr_top_flange", self.discr_top_flange],
            ["discr_bottom_flange", self.discr_bottom_flange],
            ["discr_web", self.discr_web],
            ["Initialized", self.Initialized]]
 
 

Member Data Documentation

bf_b

bf_b

Definition at line 529 of file Fibers.py.

bf_t

bf_t

Definition at line 528 of file Fibers.py.

bottom_flange_mat_ID

bottom_flange_mat_ID

Definition at line 534 of file Fibers.py.

d

d

Definition at line 527 of file Fibers.py.

data

data

Definition at line 583 of file Fibers.py.

discr_bottom_flange

discr_bottom_flange

Definition at line 537 of file Fibers.py.

discr_top_flange

discr_top_flange

Definition at line 536 of file Fibers.py.

discr_web

discr_web

Definition at line 538 of file Fibers.py.

fib_sec

fib_sec

Definition at line 570 of file Fibers.py.

GJ

GJ

Definition at line 539 of file Fibers.py.

ID

ID

Definition at line 526 of file Fibers.py.

Initialized

Initialized

Definition at line 543 of file Fibers.py.

section_name_tag

section_name_tag

Definition at line 542 of file Fibers.py.

tf_b

tf_b

Definition at line 531 of file Fibers.py.

tf_t

tf_t

Definition at line 530 of file Fibers.py.

top_flange_mat_ID

top_flange_mat_ID

Definition at line 533 of file Fibers.py.

tw

tw

Definition at line 532 of file Fibers.py.

web_mat_ID

web_mat_ID

Definition at line 535 of file Fibers.py.

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The documentation for this class was generated from the following file:

• /media/carmine/DATA/Programmi/OpenSeesPyAssistant/Fibers.py