1 files changed, 240 insertions, 0 deletions
diff --git a/Connections/Shear/Finplate/finPlateCalc.py b/Connections/Shear/Finplate/finPlateCalc.py
new file mode 100644
index 0000000..7a8acc9
--- /dev/null
+++ b/Connections/Shear/Finplate/finPlateCalc.py
@@ -0,0 +1,240 @@
+'''
+Created on 07-Aug-2014
+
+@author: subhrajit
+'''
+    
+import math
+from model import *
+from PyQt4.Qt import QString
+import logging
+flag  = 1
+logger = None
+
+def module_setup():
+    
+    global logger
+    logger = logging.getLogger("osdag.finPlateCalc")
+
+module_setup()
+
+def finConn(uiObj):
+    global flag
+    global logger
+    '''(Dictionary) --> Dictionary
+    '''
+    
+    beam_sec = uiObj['Member']['beamSection']
+    column_sec = uiObj['Member']['columSection']
+    connectivity = uiObj['Member']['connectivity']
+    f_u = uiObj['Member']['fu(MPa)']
+    f_y = uiObj['Member']['fy(MPa)']
+    
+    F = uiObj['Load']['shearForce(kN)']
+    	
+    bolt_dia = uiObj['Bolt']['diameter(mm)']
+    bolt_type  = uiObj["Bolt"]["type"]
+    bolt_grade = uiObj['Bolt']['grade']
+    
+    plate_thk = uiObj['Plate']['thickness(mm)']
+    plate_width = uiObj['Plate']['width(mm)']
+    plate_len = uiObj['Plate']['height(mm)']
+    
+    weld_thk = uiObj["Weld"]['size(mm)']
+    FOS_u = 1.25
+    FOS_n = 1.1
+    k_b = 0.5
+    dictbeamdata  = get_beamdata(beam_sec)
+    print dictbeamdata
+    t_wb = float(dictbeamdata[QString("tw")])
+    d_web_b = float(dictbeamdata[QString("D")])
+    mu_f = 0.55
+    
+    #------- tw of beamt_wb = 8.9      # Thickness of web of the connected member ISMB 400
+    #-----D of beam d_web_b = 380   #column Clear depth of web of the connected member ISMB 400
+    no_row_b = 3
+    no_col_b = 1
+#------------------------------------------------------------------------------ 
+    #---------------------------------------------------------- # Fin plate data
+    #------------------------------------------------------------ plate_thk = 10
+    #--------------------------------------------------------- plate_width = 100
+    #----------------------------------------------------------- plate_len = 300
+#------------------------------------------------------------------------------ 
+    #------------------------------------------------------------------- F = 140
+    # your calculations
+    '''
+    Design of bolts
+    '''
+    logger.info("Starting Design Calculations ")
+    # Shearing capacity of bolt
+    V_dsb = (0.78*math.pi*bolt_dia**2/4 * math.floor(float(bolt_grade))*100)/(math.sqrt(3)*1000*FOS_u) 
+    V_dsb = round(V_dsb,3)
+    
+    
+    # Bearing capacity of bolt
+    V_dpb = 2.5*k_b*bolt_dia*t_wb*f_u/(FOS_u*1000)
+    V_dpb = round(V_dpb,3)
+    if V_dsb > V_dpb:
+       V_db = V_dpb
+    else:
+       V_db = V_dsb
+      
+    #number of bolts
+    no_b = math.ceil(F/V_db)
+    if no_b <= 2:
+        no_b = 3 
+           
+    # Hole diameter
+    if bolt_dia == 12 or bolt_dia == 14:
+        dia_h = bolt_dia + 1
+    elif bolt_dia == 16 or bolt_dia == 18 or bolt_dia == 20 or bolt_dia == 22 or bolt_dia == 24:
+        dia_h = bolt_dia + 2
+    else:
+        dia_h = bolt_dia + 3    
+    
+    # End and edge distance
+    d_edge = 2 * dia_h
+    d_end = 2 * dia_h
+    if d_edge < 50 or d_end < 50:
+        d_edge = 50
+        d_end = 50
+    else:
+        d_edge = math.ceil(d_edge)
+        d_end = math.ceil(d_end)
+    
+    # Web side plate length and width input
+    if plate_len == 0:
+        plate_len = d_web_b - 60
+    elif plate_len > d_web_b - 60:
+        logger.error("The length of the plate is more than the available depth of %2.2f mm " % (plate_len))
+        print('Re-enter Length')
+    plate_width_min = 2*d_end
+    if plate_width == 0:
+        plate_width_min = 2*d_end
+    if plate_width < plate_width_min:
+        logger.error(" Plate width is less than the minimum width required of %2.2f mm " % (plate_width_min))
+        #print('Re-enter Width')
+    #.......................................................................
+        
+    plate_len_b = plate_len - 2*d_edge # Length available for bolt group
+    pitch_min = 1.5*bolt_dia
+    pitch = plate_len_b/(no_b-1)
+    pitch = round(pitch,3)
+    if no_col_b == 1:
+       gauge = 0
+    else:
+       gauge = 50 
+    
+    # Deciding on arrangement of bolts    
+    no_b_oneline = (plate_len_b//pitch_min) + 1
+    
+    
+        
+    if pitch < pitch_min:
+        logger.warning("Pitch distance is less than the minimum required")
+        #print('Pitch distance is insufficient') 
+    
+   
+        
+    
+    #.......................................................................
+    '''
+    Web side plate design
+    '''
+    
+    #if plate_len > d_web_b:
+        #print('Reselect the length of plate less than depth of the connected web')
+    
+    thk_min = round((5*F*1000)/(f_y*plate_len),3)
+    
+    if thk_min > plate_thk:
+        logger.error("The selected thickness of finplate is less than the minimun required")
+        flag = 0
+        #print('Thickness of fin plate is insufficient')
+        
+    #d_clear = 20
+    x = int(no_b//2)
+    M_ext = 0
+    for i in range(1,x+1):
+        if no_b%2 == 1: 
+            M_ext += 2*(i*(pitch**2)/pitch)*V_dsb
+        elif no_b%2 == 0:
+            M_ext = i*((pitch/2)**2)/(pitch/2)*V_dsb    
+    M_ext = round(M_ext/1000,3)
+    #print(M_ext) 
+        
+    M_cap = 1.2*(f_y/FOS_n)*(plate_thk*plate_len**2)/(6*1000)
+    M_cap = round(M_cap/(1000),3)
+    #print(M_cap) 
+    
+    if M_cap < M_ext:
+        
+        logger.error("The flexural moment capacity of the finplate is less than the external moment")
+        flag = 0
+        #print('The plate design is OK') 
+    #flag = False
+    
+    '''
+    Weld Design
+    '''
+    # Resultant shear on weld
+    l_eff_w = plate_len - 2*weld_thk
+    #print(l_eff_w)
+    H_sh = (M_ext*6000)/(2*(l_eff_w**2))
+    #print(H_sh)
+    V_sh = F/float(2*l_eff_w) 
+    #print(V_sh)
+    R_sh = math.sqrt(H_sh**2 + V_sh**2)
+    R_sh = round(R_sh,3)
+    #print(R_sh)
+    
+    t_w_ductility = 0.6 * plate_thk / 0.7
+    #print(t_w_ductility)
+    
+    if weld_thk < t_w_ductility:
+        thk_weld = int(t_w_ductility)
+    else:
+        thk_weld = weld_thk
+        
+    #print(weld_thk)
+    
+    # Weld strength
+    f_wd = f_u/float(math.sqrt(3)*FOS_u)    
+    #print(f_wd)
+    R_nw = f_wd*0.7*weld_thk/1000
+    R_nw = round(R_nw,3)
+    # End of calculation
+    
+    outputObj = {}
+    outputObj['Bolt'] ={}
+    outputObj['Bolt']['shearcapacity'] = V_dsb
+    outputObj['Bolt']['bearingcapacity'] = V_dpb
+    outputObj['Bolt']['boltcapacity'] = V_db
+    outputObj['Bolt']['numofbolts'] = no_b
+    outputObj['Bolt']['boltgrpcapacity'] = 0.0
+    outputObj['Bolt']['numofrow'] = no_row_b
+    outputObj['Bolt']['numofcol'] = no_col_b
+    outputObj['Bolt']['pitch'] = pitch
+   
+    outputObj['Bolt']['enddist'] = d_end
+    
+    outputObj['Bolt']['edge'] = d_edge
+    outputObj['Bolt']['gauge'] = gauge
+    
+    outputObj['Weld'] = {}
+    outputObj['Weld']['thickness'] = thk_weld
+    outputObj['Weld']['resultantshear'] = R_sh
+    outputObj['Weld']['weldstrength'] = R_nw
+    
+    outputObj['Plate'] = {}
+    outputObj['Plate']['height'] = 0
+    outputObj['Plate']['width'] = 0
+    outputObj['Plate']['externalmoment'] = M_ext
+    outputObj['Plate']['momentcapacity'] = M_cap
+
+    if flag != 0:
+        logger.info("Design is safe")
+    else:
+        logger.error("Design is not safe")
+    return outputObj
+