connections for ismc150
TRANSCRIPT
DESIGN CHECK FOR CONNECTION PLATE FOR ISMC150: -
Check the forces on bracket from STAAD outputForces on brackets : -
= 13.50= 0.00
Bending moments ,for DL+LL at support = 0.000
Design of Vertical plate : -= 250= 300= 8
Number of vertical legs per brackets, n = 1Forces & moments on each Plate
Vertical shear forces, V1 = Vv/n = 13.5 / 1 = 13.500Comp/ Tension forces, F1 = Vh/n = 0 / 1 = 0.000
= 75Bending moment induced, M1 = [V1 x eh] = 13.5 x 0.075 = 1.01
= 8.44 = 1.02 x 10^6 / (8 x 300 ^2 / 6) < Permissibale bending stress of MS = 165Hence plate is safe in bending
= 5.625 = 13.5 x 10^3 / (8 x 300 ) < Permisibale shear stress of MS = 100Hence Plate is safe in shear
= 0.00 = 0 x 10^3 / (8 x 300 ) < Permissibale Compressive stress of MS = 150
Hence the plate is safe in compression / tension= 0.002
= 13.5 x 10^3 x 75^2 x (2 x 250 + (250- 75) / ( 6 x 2 x 10^6) (8x300^ < Span/325 = 0.923
Hence the bracket is safe in Deflection
CHECK FOR ANCHOR FASTNER (CRACKED) FOR PLATE CONNECTION:-
Vertical shear forces, Vv
Horizontal shear forces, Vh
Width ,B1
Depth ,D1
Thickness, t1
Eccentricity for horizontal load , eh
Maximum bending stress,σb= M1 / ZXX =[M1 / (t x d2/6)]
Maximum shear stress induced ,σs = [ V1 / (t1 x D1)
Maximum comp/tension stress induced ,σct = [ F1/( t1 x D1 )]
Maximum deflection (cantilever) = V1 x eh^2 x (2B1 + (B1-eh))/6Esteel x Ixx
Data : (FROM HILTI TECHNICAL MANUAL) Spacing of anchor fastners = 150
Minimum concret edge distance = 75
.HSA CHEMICAL = 16LENGTH = 140FOR .HSA CHEMICAL M 16 X 140mm LONG
Recommended Load Permissibale Load
Pullout Strength (Tensile) 8.5 KN 11.9Shear Strength 17.0 KN 17.4
Type of Supports Nature
PINNED 13.5KN shear 0KN
( Fastner reqd ) shear y =
( Fastner reqd ) pull in z =
Type of Supports
Fixed but release 1.59 0.00Provide fastner 2 2
HENCE PROVIDE 4 Nos .HSA CHEMICAL M16 X 140mm LONG
Design Parameters
Reactions :-
VH in KN VV in KN
Nos of bolts reqd = ( bolts reqd ) pull in x + ( bolts reqd ) shear in y
VH/ shear strength of bolt
VV / pull out strength of bolt
Total Nos of fastner :-
Vv Vh
KN FOS 1.2KN FOS 1.2KN - m
mmmmmm
KNKNmmKN-m
mm
mm
N/mm2
N/mm2
N/mm2
N/mm2
N/mm2
N/mm2
mm
mm
mmmm
Permissibale Load
KNKN
Nature
pull