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Pilecap On 6 Piles

1. This document provides information on the verification of a 6 pile pilecap, including material properties, loadings, pile and pilecap dimensions, and a strut-and-tie model analysis of the pilecap. 2. The strut-and-tie model analyzes the stress in each pile, with the ultimate pile loads ranging from 444.15 kN to 451.90 kN, higher than the design load of 360 kN. 3. The node stresses were also verified to be below the effective concrete stresses of 14.96 to 17.60 MPa.

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0% found this document useful (0 votes)
65 views3 pages

Pilecap On 6 Piles

1. This document provides information on the verification of a 6 pile pilecap, including material properties, loadings, pile and pilecap dimensions, and a strut-and-tie model analysis of the pilecap. 2. The strut-and-tie model analyzes the stress in each pile, with the ultimate pile loads ranging from 444.15 kN to 451.90 kN, higher than the design load of 360 kN. 3. The node stresses were also verified to be below the effective concrete stresses of 14.96 to 17.60 MPa.

Uploaded by

chhay long
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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សំ ញ់ វ ិស្វកមម ករគណនេជីង ងឈរេលស

ី រសរ្រគះឹ ៦េដើម
SAMLANH ENGINEER PILCAP ON 6 PILES VERIFICATION
1. Material Properties :
Concrete Strength Cylinder: 30.00 N/mm² Rebar Strength : 390.00 N/mm²
2. Supports Reaction :
PPC = 20.000 kN
P DL= 1508.93 kN Mx DL= 0.00 kN-m My DL= 0.00 kN-m
P LL= 434.13 kN Mx LL= 0.00 kN-m My LL= 0.00 kN-m

3. Column and Pilecap Properties:


Column Pilecap Concrete Cover (cm)
Type Rectangle Thickness (cm) : 70.00 Embended (s) = 5.00 cm
B 40.00 Main bar size : ø20 mm Letral = 5.00 cm
D 40.00 Main Bar Direction : X Top and Bottom = 5.00 cm
4. Piles Properties and Status :
Nº Pile D (cm) X (cmm) Y (cm) X dev.(cm) Ydev (cm) Qall. (kN) Ri (kN) Status
1 Square 30.00 90.00 50.00 5.00 5.00 360.00 324.3 Verified
2 Square 30.00 0.00 50.00 6.00 5.00 360.00 324.9 Verified
3 Square 30.00 -90.00 50.00 -5.00 -5.00 360.00 326.0 Verified
4 Square 30.00 -90.00 -50.00 3.00 -5.00 360.00 330.0 Verified
5 Square 30.00 0.00 -50.00 -5.00 -3.00 360.00 329.3 Verified
6 Square 30.00 90.00 -50.00 -3.00 5.00 360.00 328.4 Verified

95.0 95.0

2 1
3 Y+
55.0
45.0

45.0
55.0

6
4 5

87.0 87.0
5. Strut-and-Tie Modeling :
C.G of Load Distrtibuted Area from
As1
Column to Piles 2 1
3 23.20º 82.41º 97.59º 28.86º
Area X (cm) Y (cm)

61.14º
66.80º
A1 13.33 10.00 0 0

As3

As4

As5
A2 0.00 10.00 13.33 10.00

64.59º
A3 -13.33 10.00

58.58º
25.41
A4 -13.33 -10.00 31.42º 83.37º 96.63º
4
A5 0.00 -10.00 As2
A6 13.33 -10.00

Ultimate Pile Load


R1 = 444.15 kN
R2 = 444.99 kN
R3 = 446.50 kN b c
R4 = 451.90 kN
R5 = 451.01 kN
R6 = 449.70 kN
a/2
a
Minimum Rebar (As,min)
h d
Design Code : EC2 t
As,min1 = 12.36 cm²/m (E- 9.1N) T
s w

s+w/2
As,min2 = 8.32 cm²/m (E- 9.1N)
As,min = 12.36 cm²/m
Minimum Rebar Chosen : m
ø16 mm @ 15.00 cm Ri

As = 13.40 cm²/m Verified L

STM Pile Nº.1 (T1/C1) STM Pile Nº.2 (T2/C2)


Upper Node Type : C-C-C Upper Node Type : C-C-C
Effective Stress (fceT) = 17.60 MPa (E- 6.60, 6.57N, 3.15) Effective Stress (fceT) = 17.60 MPa (E- 6.60, 6.57N, 3.15)
Lower Node Type : C-C-T Lower Node Type : C-C-T
Effective Stress (fceB) = 14.96 MPa (E- 6.61, 6.57N, 3.15) Effective Stress (fceB) = 14.96 MPa (E- 6.61, 6.57N, 3.15)
Trial Tie (T1 ) = 707.43 kN a1 (mm) = 73.3 Trial Tie (T2 ) = 338.23 kN a2= 49.5 mm
Effective Depth (d1) = 620.0 mm h1 (mm) = 583.4 Effective Depth (d2) = 620.0 mm h2 = 595.2 mm
m1 = 932.4 mm c1 (mm) = 166.7 m2 = 454.0 mm c2 = 100.0 mm
Angle of Struct () = 32.03º Verified Angle of Struct () = 52.67º Verified
Struct (C1) = 837.4 kN bL1 (mm)= 300.0 Struct (C2) = 559.6 kN bL2 = 300.0 mm
Tie (T1) = 709.9 kN wL1 (mm) = 308.8 Tie (T2) = 339.4 kN wL2 = 304.1 mm
Upper Node Stress : 16.80 MPa Verified Upper Node Stress : 16.80 MPa Verified
Lower Node Stress : 9.04 MPa Verified Lower Node Stress : 6.14 MPa Verified

STM Pile Nº.3 (T3/C3) STM Pile Nº.4 (T4/C4)


Upper Node Type : C-C-C Upper Node Type : C-C-C
Effective Stress (fceT) = 17.60 MPa (E- 6.60, 6.57N, 3.15) Effective Stress (fceT) = 17.60 MPa (E- 6.60, 6.57N, 3.15)
Lower Node Type : C-C-T Lower Node Type : C-C-T
Effective Stress (fceB) = 14.96 MPa (E- 6.61, 6.57N, 3.15) Effective Stress (fceB) = 14.96 MPa (E- 6.61, 6.57N, 3.15)
Trial Tie (T3 ) = 672.43 kN a3 (mm) = 69.6 Trial Tie (T4 ) = 652.69 kN a4= 67.6 mm
Effective Depth (d3) = 620.0 mm h3 (mm) = 585.2 Effective Depth (d4) = 620.0 mm h4 = 586.2 mm
m3 = 888.5 mm c3 (mm) = 166.7 m4 = 863.2 mm c4 = 166.7 mm
Angle of Struct () = 33.37º Verified Angle of Struct () = 34.18º Verified
Struct (C3) = 811.8 kN bL3 (mm)= 300.0 Struct (C4) = 804.4 kN bL4 = 300.0 mm
Tie (T3) = 677.9 kN wL3 (mm) = 308.0 Tie (T4) = 665.5 kN wL4 = 307.5 mm
Upper Node Stress : 16.80 MPa Verified Upper Node Stress : 16.80 MPa Verified
Lower Node Stress : 8.79 MPa Verified Lower Node Stress : 8.72 MPa Verified

STM Pile Nº.5 (T5/C5) STM Pile Nº.6 (T6/C6)


Upper Node Type : C-C-C Upper Node Type : C-C-C
Effective Stress (fceT) = 17.60 MPa (E- 6.60, 6.57N, 3.15) Effective Stress (fceT) = 17.60 MPa (E- 6.60, 6.57N, 3.15)
Lower Node Type : C-C-T Lower Node Type : C-C-T
Effective Stress (fceB) = 14.96 MPa (E- 6.61, 6.57N, 3.15) Effective Stress (fceB) = 14.96 MPa (E- 6.61, 6.57N, 3.15)
Trial Tie (T5 ) = 322.09 kN a5 (mm) = 47.2 Trial Tie (T6 ) = 614.62 kN a6= 63.6 mm
Effective Depth (d5) = 620.0 mm h5 (mm) = 596.4 Effective Depth (d6) = 620.0 mm h6 = 588.2 mm
m5 = 432.9 mm c5 (mm) = 100.0 m6 = 815.6 mm c6 = 166.7 mm
Angle of Struct () = 54.03º Verified Angle of Struct () = 35.80º Verified
Struct (C5) = 557.3 kN bL5 (mm)= 300.0 Struct (C6) = 768.8 kN bL6 = 300.0 mm
Tie (T5) = 327.4 kN wL5 (mm) = 303.7 Tie (T6) = 623.6 kN wL6 = 306.7 mm
Upper Node Stress : 16.80 MPa Verified Upper Node Stress : 16.80 MPa Verified
Lower Node Stress : 6.12 MPa Verified Lower Node Stress : 8.36 MPa Verified

6. Tie Reinforcement :

Reinforcement Pile 1 to Pile 3 (As1) : Reinforcement Pile 4 to Pile 6 (As2) :


T1,2 = 623.12 kN As,Re= 18.37 cm² T4,6 = 567.89 kN As,Re= 16.75 cm²
Chosen : 6 ø20 mm Chosen : 6 ø20 mm
As1 = 18.85 cm² Verified As4 = 18.85 cm² Verified

Reinforcement Pile 3 to Pile 4 (As3) : Reinforcement Pile 2 to Pile 5 (As4) :


T3,4 = 346.90 kN As,Re= 10.23 cm² T2,5 = 336.42 kN As,Re= 9.92 cm²
Chosen : 4 ø20 mm Chosen : 4 ø20 mm
As3 = 12.57 cm² Verified As2 = 12.57 cm² Verified

Reinforcement Pile 6 to Pile 1 (As5) :


T6,1 = 342.60 kN As,Re= 10.10 cm²
Chosen : 4 ø20 mm
As1 = 12.57 cm² Verified

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