Project Name: Job Number Sheet No. Rev Education City Infrastructure MN00037 Client: Prepared by Checked by 41st Floor Philamlife Qatar Foundation ROCKY D 8767 Paseo De Roxas, Section of Proje Date Date Makati City, Philippin Design of Baseplate and Anchor Bolts 12/1/2007 REFERENCE CALCULATIONS OUTPUT BS5950-1 Location : Truss T01 Support Note: Design is using non-preloaded bolts 4.13 1) Given Data py = 355 c = 1 mm d = 20 mm ps = 160 t = 12 mm As = 245 pbb = 460 a = 24 mm e = 55 mm pbs = 550 b = 24 mm kbs = 1 pt = 240 h = 50 mm Px = 13 kN fcu = 35 n = 2 pcs Py = 32 kN Bolt Grade = 8.8, threads included from shear pla Pu = 30 kN 4.13.2.2 2) Thickness of Baseplate 0.42 mm ok! BS8110-1: Use: w = 0.6fcu 21 5.2.3.4 From bearing of concrete: Ae = Py / 0. 1525.7 3) Thickness of Baseplate(Assume slab base) 7.7 mm ok! 4) Bolt Capacity By Shearing: 6.3.2.1 Ps = ps*As = 39.2 kN By Bearing: 6.3.3.2 Pbb = d*tp*pbb 110.4 kN 6.3.3.3 5) Bearing Capacity of Baseplate Pbs1 = kbs*d*tp*pbs 132 kN Pbs2 = 0.5*kbs*e*tp*pbs 181.5 kN Pbs = min(Pbs1, Pbs2) = 132 kN 6) Design Capacity of Connection P = Min(Ps, Pbb, Pbs) = 39.2 kN ok! 7) Uplift Capacity of Connection Acs = 11100 By Tension of bolts: 6.3.4.2 Pt = 0.8*pt*At 47.04 At = As = 245 By Concrete Pull-out: Pp = pp*Acs = 52.5 kN 4.73 Ppc = Min(Pt, Pp) 47.0 kN ok! 8) Summary Thickness of baseplate 12 mm Diameter of Anchor Bolts 20 mm N/mm 2 N/mm 2 mm 2 N/mm 2 N/mm 2 N/mm 2 N/mm 2 tp = c*(3w/pyp)^ 1/2 N/mm 2 mm 2 tp = [(2.5w/pyp)(a 2 - 0.3b 2 )] Conical Surface Area, Acs = 4.44*h 2 mm 2 mm 2 Using: pp = min[0.8*fcu 1/2 , 5. N/mm 2
CalcsProject Name:Job NumberSheet No.RevEducation City
InfrastructureMN00037Client:Prepared byChecked by41st Floor
Philamlife TowerQatar FoundationROCKY D8767 Paseo De Roxas,Section
of Project:DateDateMakati City, PhilippinesDesign of Baseplate and
Anchor
Bolts12/1/07REFERENCECALCULATIONSOUTPUTBS5950-1Location:Truss T01
SupportNote: Design is using non-preloaded bolts.4.131) Given
Datapy=355N/mm2c=1mmd=20mmps=160N/mm2t=12mmAs=245mm2pbb=460N/mm2a=24mme=55mmpbs=550N/mm2b=24mmkbs=1pt=240N/mm2h=50mmPx=13kNfcu=35N/mm2n=2pcsPy=32kNBolt
Grade =8.8, threads included from shear planePu=30kN4.13.2.22)
Thickness of Baseplatetp = c*(3w/pyp)^1/2 =0.42mmok!BS8110-1:Use: w
= 0.6fcu =21N/mm25.2.3.4From bearing of concrete: Ae = Py / 0.6fcu
=1525.7mm23) Thickness of Baseplate(Assume slab base)tp =
[(2.5w/pyp)(a2 - 0.3b2)]^1/2 =7.7mmok!4) Bolt CapacityBy
Shearing:6.3.2.1Ps = ps*As =39.2kNBy Bearing:6.3.3.2Pbb = d*tp*pbb
=110.4kN6.3.3.35) Bearing Capacity of BaseplatePbs1 = kbs*d*tp*pbs
=132kNPbs2 = 0.5*kbs*e*tp*pbs =181.5kNPbs = min(Pbs1, Pbs2)
=132kN6) Design Capacity of ConnectionP = Min(Ps, Pbb, Pbs)
=39.2kNok!7) Uplift Capacity of ConnectionConical Surface Area, Acs
= 4.44*h2Acs =11100mm2By Tension of bolts:6.3.4.2Pt = 0.8*pt*At
=47.04At = As =245mm2By Concrete Pull-out:Pp = pp*Acs =52.5kNUsing:
pp = min[0.8*fcu1/2, 5.0] =4.73N/mm2Ppc = Min(Pt, Pp) =47.0kNok!8)
SummaryThickness of baseplate =12mmDiameter of Anchor Bolts
=20mm
&L&Z&Frdmn0118:Taken from quadratic
equation.rdmn0118:This design of baseplate and anchor bolts
consider no bending moment.
NotationsProject Name:Job NumberSheet No.RevEducation City
InfrastructureMN00037Client:Prepared byChecked by41st Floor
Philamlife TowerQatar FoundationROCKY D8767 Paseo De Roxas,Section
of Project:DateDateMakati City, PhilippinesDesign of Baseplate and
Anchor bolts12/1/07REFERENCECALCULATIONSOUTPUTPx=Factored Vertical
ForcePy=Factored Horizontal Forcepy=Design strength of
steelps=Shear Strength of boltpbs=Bearing strength of connected
partpbb=Bearing strength of boltt=Thickness of baseplated=Nominal
diameter of boltAs=Shear area of boltkbs=Coefficient for type of
holen=Number of anchor boltse=Edge distanceDt=Diameter of
holeex=Eccentricity of axial forcePs=Shear capacity of
boltPb=Bearing capacity of boltPbs=Bearing capacity of
baseplatefcu=Compressive strength of concrete basept=Tension
strength of boltsc=Largest perpendicular distance from the edge of
the effective portionof the baseplate to the face of the column
cross-sectionAe=Effective bearing areaa=Greater projection of plate
beyond the rolled sectionb=Lesser projection of plate beyond the
rolled sectionh=Embedment depth
