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design of prestressed members according to BS8110 presentation
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Job No. Sheet No. Rev.
1
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Introduction
Job Title Gamuda Biz Suites
Calc Title Prestressed Concrete Design
Job No. GPSS / j102
By SR
Date 4/17/2023
Convention
SD Structure Design
MD Member Design
CD Connection Design
Indicates that cell is referenced by a macro, hence do not change its position.
Unless of course, the macro code is changed.
Indicates that cell is referenced by a macro through a link cell, hence its position
can be changed, but it should not be altered, added to or deleted.
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Unless explicitly designated in the sheet name as a subset to another sheet, all sheets are independent of each other (i.e. no cell links between them). However, data can be transferred between sheets when required.
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Job No. Sheet No. Rev.
2
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Worksheet Company Signature
Company
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
j102
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers
A R U P E N G I N E E
R S
Ove Arup and Partners Consulting Engineers
whitbybird E N G I N
E E R S
whitbybird Consulting Engineers
Bovis Lend Lease
Bovis Lend Lease Principal Contractors
Ramboll Whitbybird E
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Ramboll Whitbybird Consulting Engineers
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G&P Professionals Sdn Bhd Consulting Engineers
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H S S ENGINEERING
HSS Integrated Sdn Bhd Consulting Engineers
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Job No. Sheet No. Rev.
3
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Member Design - PT Beam and PT Slab
Item Verification
1 Min beam elastic section modulus MOSLEY
2 Magnel diagram at design section MOSLEY
3 Max economic prestress force at transfer MOSLEY
4 TLS and SLS top and bottom stresses at design section MOSLEY
5 Prestress forces at design section MOSLEY
6 Tendon profile at all sections MOSLEY
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Job No. Sheet No. Rev.
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
j102
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Job No. Sheet No. Rev.
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
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Job No. Sheet No. Rev.
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
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Job No. Sheet No. Rev.
8
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
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Job No. Sheet No. Rev.
9
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
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Job No. Sheet No. Rev.
1
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Material Properties
50 OK
40 OK
460
460
24
30.0 GPa
15.0 GPa
7.5 GPa
28.0 GPa
14.0 GPa
7.0 GPa
Prestressing Characteristics and Criteria
40.0 OK
Pre-tension or post-tension ?
Pre-Tension
Post-Tension
Prestressing tendons bonded or unbonded ?
Bonded Increased fire and corrosion protection, greater ultimate flexural strength, safer demolition;
Unbonded No need for grouting, tendons can be replaced, less friction loss, quicker, cheaper;
Serviceability classification cl.4.1.3
Class 1 No flexural tensile stresses (eg. precast segments);
Class 2 Flexural tensile stresses, uncracked (no visible cracking) (generally employed);
Class 3 Flexural tensile stresses, cracked;
(crack widths ≤ 0.2mm normal, ≤ 0.1mm severe) (partial prestressing);
16.0 cl.4.3.5.1
-2.3 cl.4.3.5.2
Class 1 -1.0
Class 2 -2.3
Class 3 -4.6
16.5 cl.4.3.4.2
-2.5 cl.4.3.4.3
Class 1 0.0
Class 2 -2.5
Class 3 -4.6
Note by convention, positive stress is compressive and negative stress is tensile;
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Characteristic strength of concrete (prestressed beam and slab), fcu N/mm2
Note require fcu ≥ 35N/mm2 cl.4.1.8.1, usually 50N/mm2, ≤ 105N/mm2 HSC;
Characteristic strength of concrete (column), fcu (≤ 105N/mm2; HSC) N/mm2
Yield strength of longitudinal steel, fy N/mm2
Yield strength of shear link steel, fyv N/mm2
Type of concrete and density, rc kN/m3
Uncracked elastic modulus (prestressed beam and slab), Euncracked,28
Cracked elastic modulus (prestressed beam and slab), Eck = Euncracked,28 / 2
Cracked long term (creep) elastic modulus (prestressed beam and slab), Eck,cp = Eck / 2
Uncracked elastic modulus (column), Euncracked,28
Cracked elastic modulus (column), Eck = Euncracked,28 / 2
Cracked long term (creep) elastic modulus (column), Eck,cp = Eck / 2
Note Ec,28 = K0 + 0.2fcu,28 (cl.7.2 BS8110-2);
Note Euncracked,28,cp = Eck; Note Eck,cp has been calculated for normal loads, for storage loads use Eck / 3;
Characteristic strength of concrete at transfer, fci (≥ 25N/mm2 cl.4.1.8.1, usually 40N/mm2)N/mm2
TLS permissible compressive stress, f'max = 0.40fci N/mm2
TLS permissible tensile stress, f'min N/mm2
f'min = -1.0 N/mm2
f'min = -0.45Ö fci (pre-tension), -0.36Ö fci (post-tension) N/mm2
f'min = user defined N/mm2
SLS permissible compressive stress, fmax = 0.33fcu N/mm2
SLS permissible tensile stress, fmin N/mm2
fmin = -0.0 N/mm2
fmin = -0.45Ö fcu (pre-tension), -0.36Ö fcu (post-tension) N/mm2
fmin = -f (T.4.2, T.4.3) N/mm2
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Job No. Sheet No. Rev.
2
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Section Dimensions
Span, L (usually ≥ 7m) 9.000 m OK
Available beam spacing 5.000 m
(for effective width calcs; usual spacing for interior beams; half for edge beams)
Section type and support condition
(support conditions are for effective width, action effects and kinematic effects calcs)
Design section hogging or sagging moment ?
(for incorporation of the relevant action effects into the Magnel Diagram)
Overall depth, h (includes insitu slab thickness) 650 mm
non-prestressed member;
0 mm OK
250 mm
Cover to all reinforcement, cover (usually 35 (C35) or 30 (C40) internal; 40 ext 40 mm T.4.8
Increased fire and corrosion protection, greater ultimate flexural strength, safer demolition;
N/A mm
Beam area, A 1625
1625
T-section YET
L-section YET
Beam second moment of area, I 572135
572135
T-section YET
L-section YET
17604
17604
T-section YET
L-section YET
14444 OK
-18081 OK
17604
17604
T-section YET
L-section YET
18081 NOT OK
-14444 OK
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Note usually h » L/25+100mm (L £ 36m), h » L/20 (L > 36m) or h » 70% of equivalent
Depth of flange, hf (0mm if not applicable)
Width (rectangular) or web width (flanged), bw
Effective width, b = MIN(bw + function (span, section, structure), beam spacing)
cm2
Rectangular section, I = bw.h cm2
cm2
cm2
cm4
Rectangular section, I = bw.h3/12 cm4
cm4
cm4
Beam top elastic section modulus, Zt cm3
Rectangular section, Zt = I / (h/2) cm3
cm3
cm3
Min beam top elastic section modulus, Zt ≥ (Mmax-K.Mmin)/(fmax-K.f'min) cm3
Min beam top elastic section modulus, Zt ≥ (K.Mmin-Mmax)/(K.f'max-fmin) cm3
Beam bottom elastic section modulus, Zb cm3
Rectangular section, Zb = I / (h/2) cm3
cm3
cm3
Min beam bottom elastic section modulus, Zb ≥ (Mmax-K.Mmin)/(K.f'max-fmin) cm3
Min beam bottom elastic section modulus, Zb ≥ (K.Mmin-Mmax)/(fmax-K.f'min) cm3
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Job No. Sheet No. Rev.
3
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Material Stress-Strain Curves
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Job No. Sheet No. Rev.
4
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Prestressing Reinforcement
10
Note prestressing strands usually [ASTM A416] Grade 270 d = 12.7mm or [BS5896] 7-wire super d = 12.9mm;
12.70 mm
98.71
YET GPa
1860
1670
183.7 kN
165.3 kN
Longitudinal Reinforcement Details
10 mm
3
236
Shear Reinforcement Details
8 mm
2
101
Pitch of links, S 200 mm
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Total number of prestressing strands, Ns
Prestressing strands code, grade and fs
Prestressing strands nominal diameter, fs
Prestressing strands nominal area, As mm2
Elastic modulus of prestressing strand, Ep
Ultimate (characteristic) tensile strength of prestressing strand, fpk N/mm2
Proof (0.1%) strength of prestressing strand, fp,0.1 N/mm2
Ultimate (characteristic) tensile load of prestressing strand, Fpk
Proof (0.1%) load of prestressing strand, Fp,0.1
Tension steel reinforcement diameter, ft
Tension steel reinforcement number, nt
Tension steel area provided, As,prov = nt.p.ft2/4 mm2
Shear link diameter, flink
Number of links in a cross section, i.e. number of legs, nleg
Area provided by all links in a cross-section, Asv,prov = p.flink2/4.nleg mm2
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Tendon = Duct + Strands
Wires ® Strands ® Tendons
Job No. Sheet No. Rev.
5
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
External Loading
2.000 m
0.00 kPa OK
0.00 kPa
0.00 kPa
In service live load, LL 10.00 kPa
2.50 kPa
0.0 kN/m
3.9 kN/m
0.0 kN/m
20.0 kN/m
3.9 kN/m
28.9 kN/m
44.5 kN/m
Note for udl loads (DL, SDL and LL) uniform loading considered, no patch loading considered;
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Tributary width, tw
Dead load of beam flange, DLf = hf.rc
At transfer live load, LLT
At transfer superimposed dead load, SDLplan,T
In service superimposed dead load, SDLplan
Superimposed dead load on beam, SDLelev,beam
Dead load of beam web, DLw = (h-hf).bw.rc
At transfer LL beam loading, wLL,T = [LLT].tw
In service LL beam loading, wLL = [LL].tw
TLS beam loading, wTLS = [DLf+SDLplan,T+LLT].tw+DLw
SLS beam loading, wSLS = [DLf+SDLplan+LL].tw+DLw+SDLelev,beam
ULS beam loading, wULS = [1.4(DLf+SDLplan)+1.6LL].tw+1.4(DLw+SDLelev,beam)
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Job No. Sheet No. Rev.
6
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Prestress Loading (Including Restraint to Member Shortening)
1286kN = 917 kN
369 kN
650
100
250 TR.43
300 TR.43
Colu
mn R
est
rain
t i
1 10.000 0.0072 14.0 4.000 123
2 5.000 0.0072 14.0 4.000 61
3 5.000 0.0072 14.0 4.000 61
4 10.000 0.0072 14.0 4.000 123
5 0.000 0.0000 14.0 0.000 0
6 0.000 0.0000 14.0 0.000 0
Prestress force loss factor, K (usually 0.70 i.e. 30% to 0.80 i.e. 20%) 0.75
Note short term prestress losses are due to friction losses in the tendon, wedge set or draw-in TR.43
and elastic shortening of concrete, whilst long term prestress losses are due to concrete shrinkage,
concrete creep under sustained compression and relaxation of prestressing tendons under sustained tension;
The bulk of the losses occur in the first two years, initially 10% at transfer and 20% thereafter;
-310 mm OK
310 mm OK
917 <= 1378 kN cl.4.7.1
Prestress force at transfer utilisation 67% OK
150 mm OK
Note by convention e is positive downwards;
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Prestress force at transfer, P0 - SHi
Total restraint force, SHi
Total long term strain, eLT = eE + eC + eS x10-6
Elastic strain, eE x10-6
Creep strain, eC = 2.5eE x10-6
Shrinkage strain, eS (usually 100 - 300 x 10-6) x10-6
li (m) Ii (m4) Ec (GPa) hcol (m) Hi (kN)
Top limit of (negative) eccentricity of prestress tendon, emin,t
Bottom limit of (positive) eccentricity of prestress tendon, emax,b
Prestress force at transfer, P0 £ 75%.(Ns.Fpk)
Eccentricity of prestress tendon, e (emin,t £ e £ emax,b)
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Job No. Sheet No. Rev.
7
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Utilisation Summary
Checks UT Status Overall
N/A OK
999%
N/A NOT OK
67% OK
N/A OK
N/A OK
N/A OK
N/A OK
N/A NOT OK
1512 kN
110 mm
1279 917 1243 kN
15.00 m cl.3.4.1.6
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Min beam top elastic section modulus, Zt
Min beam bottom elastic section modulus, Zb
Prestress force at transfer, P0
Eccentricity of prestress tendon, e
TLS stress at bottom, f'b
TLS stress at top, f't
SLS stress at top, ft
SLS stress at bottom, fb
Max economic prestress force at transfer, P0,ecomax
Eccentricity of prestress tendon at P0,ecomax, eecomax
Allowable P0 range
Max LTB stability (compression flange) restraints spacing, LLTB
Note simply supported / continuous LLTB = MIN (60(bw or b), 250(bw or b)2/h)
and cantilever LLTB = MIN (25bw, 100bw2/h);
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≤≤
Job No. Sheet No. Rev.
8
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Action Effects From Structural Analysis
Note that moment redistribution to cl.4.2.3 BS8110 is not performed herein;
Cantilever
TLS-158 kNm
35 kN
SLS-1170 kNm
260 kN
ULS-1801 kNm
400 kN
Simply Supported
TLS39 kNm
18 kN
SLS293 kNm
130 kN
ULS450 kNm
200 kN
Encastre / Continuous Infinitely
TLS
100% -26 kNm
100% 13 kNm
100% 18 kN
SLS
100% -195 kNm
100% 98 kNm
100% 130 kN
ULS
100% -300 kNm
100% 150 kNm
100% 200 kN
Design section hogging or sagging moment ? Sagging moment
39 kNm
293 kNm
450 kNm
Dist, x 0.000 0.692 1.385 2.077 2.769 3.462 4.154 m
0 11 21 28 34 37 39 kNm
0 83 152 208 249 277 291 kNm
0 128 234 320 384 426 447 kNm
Dist, x 4.846 5.538 6.231 6.923 7.615 8.308 9.000 m
39 37 34 28 21 11 0 kNm
291 277 249 208 152 83 0 kNm
447 426 384 320 234 128 0 kNm
Note by convention, a negative moment indicates hogging moment;
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MHOG=-[0.500(wTLS)]L2
V=[(wTLS)]L
MHOG=-[0.500(wSLS)]L2
V=[(wSLS)]L
MHOG=-[0.500(wULS)]L2
V=[(wULS)]L
MSAG=[0.125(wTLS)]L2
V=[0.500(wTLS)]L
MSAG=[0.125(wSLS)]L2
V=[0.500(wSLS)]L
MSAG=[0.125(wULS)]L2
V=[0.500(wULS)]L
MHOG=-[0.083(wTLS)]L2
MSAG=[0.042(wTLS)]L2
V=[0.500(wTLS)]L
MHOG=-[0.083(wSLS)]L2
MSAG=[0.042(wSLS)]L2
V=[0.500(wSLS)]L
MHOG=-[0.083(wULS)]L2
MSAG=[0.042(wULS)]L2
V=[0.500(wULS)]L
TLS minimum bending moment, Mmin
SLS maximum bending moment, Mmax
ULS maximum bending moment, Mmax,uls
Mmin
Mmax
Mmax,uls
Mmin
Mmax
Mmax,uls
Made by Date Chd.
Drg. Ref.
Member/Location
0.000 1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000 10.000
050
100150200250300350400450500
Action Effects From Structural Analysis
Mmin Mmax Mmax,ulsDistance, x (m)
Ben
din
g M
om
en
t (k
Nm
)
Job No. Sheet No. Rev.
9
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Kinematic Effects From Structural Analysis
Note that the following deflection calculations assume an uncracked section for serviceability
classes 1 and 2 and cracked section for serviceability class 3 (cl.4.3.6.2 BS8110);
Cantilever
191.1 mm
276.2 mm
Simply Supported
19.9 mm
28.8 mm
Encastre / Continuous Infinitely
100% 4.0 mm
100% 5.8 mm
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dLL=wLLL4/(8EI)
dSLS=wSLSL4/(8EI)
dLL=5wLLL4/(384EI)
dSLS=5wSLSL4/(384EI)
dLL=wLLL4/(384EI)
dSLS=wSLSL4/(384EI)
Note that E in the above equations is Euncracked,28,cp (classes 1 and 2) and Eck,cp (class 3);
Made by Date Chd.
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Job No. Sheet No. Rev.
10
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Magnel Diagram at Design Section
Drawing limits
Equation
Equation 1, EQ1 108 200 mm
Equation 2, EQ2 108 200 mm
Equation 3, EQ3 -108 200 mm
Equation 4, EQ4 -108 200 mm
Note by convention e is positive downwards;
1512 kN
110 mm
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emin,t,magnel emax,b,magnel
Max economic prestress force at transfer, P0,ecomax
Eccentricity of prestress tendon at P0,ecomax, eecomax
Made by Date Chd.
Drg. Ref.
Member/Location
-150 -100 -50 0 50 100 150 200 2500
5000
10000
15000
20000
25000
30000
35000
Magnel Diagram
EQ1 EQ2 EQ3 EQ4 e P0
Eccentricity, e (mm)
106/
P0(
kN)
- - -
t l0 max max t max min t
1 11/ A e/ Z .
P MIN f M / Z /K, f M / Z
£ - - -
t l0 min min t min max t
1 11/ A e/ Z .
P MAX f M / Z , f M / Z /K
£
b l0 min max b min min b
1 11/ A e/ Z .
P MAX f M / Z /K, f M / Z
b l0 max min b max max b
1 11/ A e/ Z .
P MIN f M / Z , f M / Z /K
Job No. Sheet No. Rev.
11
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
TLS and SLS Top and Bottom Stresses at Design Section
917 kN
150 mm
-2.3 11.2 16.0 OK
5.6 7.8 2.2
-2.3 0.1 16.0 OK
5.6 7.8 2.2
-2.5 15.0 16.5 OK
4.2 5.9 16.6
-2.5 -6.5 16.5 NOT OK
4.2 5.9 16.6
Secondary Effects 5.6
Secondary Effects 4.2
Note by convention, positive stress is compressive and negative stress is tensile;
TR.43
TR.43
TR.43
restraint to slab shortening by supports become important, otherwise they may be ignored; TR.43
Secondary effects may also be ignored in the case of statically determinate structures; TR.43
TR.43
Prestress Forces at Design Section
917 kN
150 mm
MIN 69 kN OK
MAX 1910 kN OK
MIN 1279 kN NOT OK
MAX 1243 kN OK
Note in the first two inequalities, should the denominator be negative, the inequality is flipped;
1279 917 1243 kN
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Chosen prestress force at transfer, P0
Chosen eccentricity of prestress tendon, e
TLS stress at bottom, f'b N/mm2
N/mm2
TLS stress at top, f't N/mm2
N/mm2
SLS stress at top, ft N/mm2
N/mm2
SLS stress at bottom, fb N/mm2
N/mm2
TLS average stress, (f'b+f't)/2 N/mm2
SLS average stress, (ft+fb)/2 N/mm2
Average prestress levels usually vary from 0.7N/mm2 to 2.5N/mm2 for solid slabs;
Average prestress levels occasionally vary up to 6.0N/mm2 for ribbed or waffle slabs;
When the average prestress exceeds 2.0N/mm2 or the floor is long, the secondary effects of
Past experience shows that for precompression to be effective it should be at least 0.7N/mm2;
Chosen prestress force at transfer, P0
Chosen eccentricity of prestress tendon, e
Allowable P0 range
Made by Date Chd.
Drg. Ref.
Member/Location
+ -
- +
+
+
-
-
≤
≤
≤≤
≤≤
≤
≤
≤
≤
£ - £
l l l0 0 minmin b max
b b
P Pe Mf f f
A Z Z
£ - £
l l l0 0 minmin t max
t t
P Pe Mf f f
A Z Z
£ - £
0 0 maxmin t max
t t
KP KPe Mf f f
A Z Z
£ - £
0 0 maxmin b max
b b
KP KPe Mf f f
A Z Z
Job No. Sheet No. Rev.
12
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Tendon Profile at All Sections
Dist, x 0.000 0.692 1.385 2.077 2.769 3.462 4.154 m
152 164 174 183 189 193 195 mm
-173 -53 48 129 189 229 249 mm
Dist, x 4.846 5.538 6.231 6.923 7.615 8.308 9.000 m
195 193 189 183 174 164 152 mm
249 229 189 129 48 -53 -173 mm
Note by convention e is positive downwards;
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
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emax
emin
emax
emin
Made by Date Chd.
Drg. Ref.
Member/Location
0.000 1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000 10.000
-200
-150
-100
-50
0
50
100
150
200
250
300
Tendon Profile
emax eminDistance, x (m)
Ec
ce
ntr
icit
y,
e (
mm
)
Job No. Sheet No. Rev.
13
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Design Flow Chart
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Job No. Sheet No. Rev.
14
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Flat Slab Tendon Arrangement Options
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Two way spanning flat slab: tendons banded in both orthogonal directions employed for regular column grids in both perpendicular directions.
One way spanning flat slab: tendons banded in one direction employed for regular column grids in one direction.
Figure :
Figure :
Job No. Sheet No. Rev.
15
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Equivalent Frame Analysis
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Job No. Sheet No. Rev.
16
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Scheme Design: PT One Way Spanning Solid Slab
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Job No. Sheet No. Rev.
17
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Scheme Design: PT One Way Spanning Ribbed Slab
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Job No. Sheet No. Rev.
18
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Scheme Design: PT Flat Slab With Edge Beams
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Job No. Sheet No. Rev.
19
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Scheme Design: PT Beam and PT Slab
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Table X
7
73 4
5
6
Table X
Job No. Sheet No. Rev.
20
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
G & P E N G I N E E
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Table X
Job No. Sheet No. Rev.
21
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
j102
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Job No. Sheet No. Rev.
22
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
j102
Made by Date Chd.
Drg. Ref.
Member/Location
Job No. Sheet No. Rev.
23
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
j102
Made by Date Chd.
Drg. Ref.
Member/Location
Job No. Sheet No. Rev.
24
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
j102
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Drg. Ref.
Member/Location
Job No. Sheet No. Rev.
25
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
G & P E N G I N E E
R S
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above
Job No. Sheet No. Rev.
26
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
BS8110
Typical Initial Span / Effective Depth Ratios
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0.000 1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000 10.000
050
100150200250300350400450500
Action Effects From Structural Analysis
Mmin Mmax Mmax,ulsDistance, x (m)
Ben
din
g M
om
en
t (k
Nm
)
Job No. Sheet No. Rev.
1
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Basic Prestressing Principle)
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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3
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Pre- and Post-Tensioning)
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4
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Bonded or Unbonded)
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5
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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6
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Restraint to Elastic and Creep Shortening due to Prestressing)
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Disproportionate Collapse Requirements)
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Accommodation of Service Openings)
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Construction Joints and Pour Size)
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10
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Stressing)
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Slab Soffit Marking)
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12
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
Standard Design Concepts (Demolition and Alterations)
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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14
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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17
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
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20
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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Job No. Sheet No. Rev.
21
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
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Job No. Sheet No. Rev.
22
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
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Job No. Sheet No. Rev.
23
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
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Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
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25
Job Title Gamuda Biz Suites
Prestressed Concrete Design SR 4/17/2023
G & P E N G I N E E
R S
G&P Special Structures Sdn Bhd Consulting Engineers GPSS /
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