Mathcad - PIN PLATE CONNECTION Al WAHA PDF
Mathcad - PIN PLATE CONNECTION Al WAHA PDF
Mathcad - PIN PLATE CONNECTION Al WAHA PDF
and Mast
PIN PLATE CONNECTION DESIGN I. Design Criteria A. Image CODE REFERENCE: BS 5950-1-2000
B. Factored Loads V1 := 0 kN Tu := 94.68kN Muw := 0 kN m Mus := 0 kN m Factored Shear Load Factored Tension/Compression Load Factored Total Moment Factored Total Moment Note : load mentioned above are maximum for all cases C. Properties Section Properties of Steel Pipe dp := 88.9 mm tp := 3.2 mm Ap := 8.62cm
2 4
Tu = 9.468 10 N Muw = 0 N mm
Fy = 275 MPa
Pin Bolt Diameter Number of Bolts Pin Bolt yield strength Note: Grade 8.8
Fub := 880
Fbb := 1000
N mm
2
Ar :=
Tu Fy
Ar = 344.291 mm
tpp := 16mm
D1p = 21.518 mm
D2p :=
Ar tpp
D2p = 21.518 mm
distance(Use 1.4 for hand flame cut edge) D2edge := 1.25 ab = 31.25 mm
D3p :=
Ar tpp
0.67 A r
D3p = 21.518 mm
D4 :=
tpp tpp
0.25
D4 = 64 mm
Duse := 40mm Apuse := 2Duse tpp Area of the pin plate to be used Apuse = 1.28 10 mm
3 2
D. Design calculations D. 1 PLATE CALCULATIONS D.1.1 Check for Shearing Capacity fpv := 0.5 Fy Apuse = 176 kN Actual Shear capacity of the plate
Vcheck := if fpv Tu , "Shear Capacity Passed" , "Increase Dimension" Vcheck = "Shear Capacity Passed" D . 1.2 Check for Bearing Capacity py := Fy py = 275 MPa fpb := 0.8 py ph tpp = 98.56 kN
B check := if fpb Tu , "Bearing Capacity Passed" , "Increase Dimension" B check = "Bearing Capacity Passed" D. 1. 3 Check for Moment capacity
Zpw :=
D4 tpp
6
Mcheck := if fmpw Muw , "Weak Axis Moment Capacity Passed" , "Increase Dimension" Mcheck = "Weak Axis Moment Capacity Passed" Zps := tpp 2D4 + ab
6
)2
Mcheck2 := if fmps Mus , "Strong Axis Moment Capacity Passed" , "Increase Dimension" Mcheck2 = "Strong Axis Moment Capacity Passed"
D. 2 DESIGN OF BOLT D .2.1 DESIGN FOR BEARING OF BOLT effb := ab 3 mm Avb := effb
4
2
= 380.133 mm
BBcheck := if fbb Tu , "Bolt passed for bearing" , "Increase bolt diameter" BBcheck = "Bolt passed for bearing" fbb Factor of safety for bearing of bolt FSb := = 8.03 Tu
Note: must be greater than 1 since load are already factored by 1.4
= 100.355 kN
BBcheck3 = "Bolt passed for shearing" FS1 := fvb Tu = 1.06 factor of safety for shearing of bolt Note: must be greater than 1 since load are already factored by 1.4
fmb :=
= 0.628 kN m
Fm := Tu
tpp
2 nb
= 0.379 m kN
BBcheck4 := if fmb Fm , "Bolt passed for bending " , "Increase bolt diameter" BBcheck4 = "Bolt passed for bending "
Fuw := 440
Tensile strength of Weld for Class 35 Weld thickness effective weld thickness for fillet weld
fvw = 127.928 kN Wcheck := if fvw V1 , "Weld passed for shear " , "Increase weld thickness" Wcheck = "Weld passed for shear "
Wcheck2 := if fvw Tu , "Weld passed for Tension " , "Increase weld thickness" Wcheck2 = "Weld passed for Tension "