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    Preliminary Checking of Dowel Capacity in Chimney

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    Teguh Owner's
    This document summarizes calculations for the design of an anchor and base plate for a proposed 3m pole structure. The calculations check: 1) The tensile and shear capacity of the anchor bolts based on material properties and load distributions, finding the design satisfactory. 2) The required area and thickness of the base plate to support the calculated compression load at the tower base, finding the existing base plate design satisfactory. 3) Key dimensions for the anchor bolts and base plate including bolt diameter, spacing, and edge distances.

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    Preliminary Checking of Dowel Capacity in Chimney

    Uploaded by

    Teguh Owner's
    22 views4 pages
    This document summarizes calculations for the design of an anchor and base plate for a proposed 3m pole structure. The calculations check: 1) The tensile and shear capacity of the anchor bolts based on material properties and load distributions, finding the design satisfactory. 2) The required area and thickness of the base plate to support the calculated compression load at the tower base, finding the existing base plate design satisfactory. 3) Key dimensions for the anchor bolts and base plate including bolt diameter, spacing, and edge distances.

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    This document summarizes calculations for the design of an anchor and base plate for a proposed 3m pole structure. The calculations check: 1) The tensile and shear capacity of the anchor bolts based on material properties and load distributions, finding the design satisfactory. 2) The required area and thickness of the base plate to support the calculated compression load at the tower base, finding the existing base plate design satisfactory. 3) Key dimensions for the anchor bolts and base plate including bolt diameter, spacing, and edge distances.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    22 views4 pages

    Preliminary Checking of Dowel Capacity in Chimney

    Uploaded by

    Teguh Owner's
    This document summarizes calculations for the design of an anchor and base plate for a proposed 3m pole structure. The calculations check: 1) The tensile and shear capacity of the anchor bolts based on material properties and load distributions, finding the design satisfactory. 2) The required area and thickness of the base plate to support the calculated compression load at the tower base, finding the existing base plate design satisfactory. 3) Key dimensions for the anchor bolts and base plate including bolt diameter, spacing, and edge distances.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    of 4

    SITE ID SITE NAME STRUCTURE TYPE

    : : :

    RLC RELOC LEUSER PROPOSE POLE 3m

    PRELIMINARY CHECKING OF DOWEL CAPACITY IN CHIMNEY


    Tmax : Chimney dimension b : h : As min : 0.828 KN 300 mm 300 mm 1% x b x h 900 mm2

    EMBEDMENT & HOOK DIMENSION


    b ! knot db fybolt fc' : : : : : : : 1.2 1.3 0.8 0 16 240 18.31

    mm mm Mpa Mpa

    Abolt :

    201.06

    mm2

    Anchor embedment (Ld) 0.02 * ! * b * * Abolt * (fy bolt / fc') Ldh = = 281.48 mm Ldhmin Ld NP Hook Hook used = = : : : max(8*db , 6inch) max(Ldh, Ldh min) 0.14 kN 0.52 mm 80.00 mm Ldh min Ld Ld used = = = 152.4 mm 281.48 mm 300.00 mm

    OK!

    OK!

    hbp g

    440 mm htot

    300 mm Ld

    80 mm ANCHOR 16

    PT REKAYASA KONSTRUKSI K.U

    AB&BP

    STATICAL CALCULATION of ANCHOR


    CALCULATION OF ANCHOR BOLT & BASE PLATE Site ID : RLC Site Name : RELOC LEUSER Tower Type : PROPOSE POLE 3m

    ANCHOR BOLT MATERIAL CHARACTERISTIC Concrete Grade Concrete comp strength Steel yield strength bolt Steel yield strength plate Bolt Diamater Bolt Area

    : K : fc' : Fybolt : Fyplate : db : Abolt = 0.25 db2 : Fu Bolt : 40.75 %

    : : : : :

    K-225 18.31 Mpa 240 Mpa 240 16 201.062 310 Mpa mm 2 mm Mpa

    Distribution load at Built up Leg SUPPORT REACTION Max Tension at base built up leg Max Compression at base built up leg Shear force at base built up leg

    : Tleg : Pleg : Fx : Fy : S= (Fx2 + Fy2)

    : : : : :

    0.828 kN 0.003 kN 5.744 kN 0.820 kN 5.802 kN

    CHECK TENSILE CAPACITY Tensile capacity Number of anchor bolts that needed

    : Tbolt = 0.5 Fubolt Abolt 1.33 : n = Tleg / Tbolt take n : ft = Tleg / (n Abolt) : Ft = Tbolt / Abolt ft / F t " 0.003 " 1.00 1.00

    : : : : :

    41.449 Mpa 0.02 pcs 6 pcs 0.686 Mpa 206.150 Mpa [Satisfactory]

    Actual tensile stress of anchor bolt Allowable tensile stress of anchor bolt

    CHECK SHEAR CAPACITY Actual shear stress of anchor bolt Allowable shear stress of anchor bolt

    : fv = S / n Abolt : Fv = 0.4 Fybolt 1.33 fv / F v " 0.038 " 1.00 1.00

    : :

    4.810 Mpa 127.680 Mpa [Satisfactory]

    Check of combination tension and shear capacity : = arctan (fv / ft) Fsd = ( f2t + f2v )^0.5 Frd = ( (cos / Ft)^1.5 + (sin / Fv)^1.5 )^ -2/3 Fsd / Frd 0.038 1.00 1.00 = 81.879 = = 4.858 126.763 Mpa Mpa

    [Satisfactory]

    PT REKAYASA KONSTRUKSI K.U

    AB&BP

    CALCULATION OF BASE PLATE Max compression at tower base per one leg Allowable bearing strength of the concrete (ACI, Art.10.17) Area of baseplate required baseplate baseplate used : Pleg : Fp = 0.65 (0.85 fc') : Abp = Pleg / Fp : bp = Abp : bpused (existing) : fp = Pleg/bpused2 : : : : : : 0.003 kN 10.119 Mpa 0.296 mm2 0.544 mm 300 mm 0.000 Mpa

    70

    100

    70 50 100 100 50

    Edge distance Distance of bolt to bolt Momen on baseplate Required thickness of base plate

    : : : : :

    m bt Tf = Tleg / n M = Tf b tp1 = m (fp / (1.33 0.25 Fybolt))

    : : : : : : :

    50 100 0.138 0.000 0.032

    mm mm kN kNm mm

    : tp2 = (6 M / (bt 0.75 Fyplate 1.33)) Required thickness of base plate : tp = max(tp1,tp2)

    0.000 mm 0.032 mm

    Widht of Baseplate Existing Thickness of baseplate Used

    : Bp : Tp

    : :

    300 mm 20 mm [Satisfactory]

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