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PRESTRESSED CONCRETE SPUN PILES
Contents
INTRODUCTION FEATURES TECHNICAL DATA SPECIFICATION FLOWSHEET MAMIRA SHOE CONICAL SHOE (PENCIL SHOE) SECTIONAL PROPERTIES QUALITY CONTROL
Introduction PT. KOMPONINDO BETONJAYA (KOBE) exists and participates in the development of the nation, by utilizing domestic resources, combined with advanced technology from other countries. A good cooperation has been conducted between a national group or companies and a professional Japanese company in the field of prestressed concrete. Its reliability has been proved in supporting the development. Its presence also strengthens various aspects of the national development of Indonesia with high precision concrete products, concrete steps to maintain the quality are continuously conducted. Various researches are constantly monitored to guarantee the quality control. With the availability of said experience and knowledge, P.T. KOMPONINDO BETONJAYA constantly conducts business in the field of concrete, so that it enjoys the confidence of many users. Prestressed concrete is mainly used as “Structure member”. The demand has constantly increased and has rapidly developed since 1955; in 1965, it has even obtained the recognition from JIS. The great demand shows, that P.T. KOMPONINDO BETONJAYA is recognized to have a reliable quality. The requirement for spun piles has increased, so that in 1983, a seminar was held to maintain quality control. The research results have been approved by JIS in 1988, by giving priority to the requirements of the users. Various decisions on load capacity standards have been taken, in line with the needs of the users. These decisions have been officially recognized by JIS in September 1, 1988. P.T. KOMPONINDO BETONJAYA is endeavouring to expand the use of PC Spun Piles as extensively as possible, in order that the development can run smoothly. Various facilities/conveniences are granted for the satisfaction of the user, and we are always prepared to assist and provide guidelines/directives in technical aspects, installation and design.
Features
1. High strength and high quality KOBE Spun Piles are manufactured in a well organized and controlled factory, the high strength concrete and uniform quality and concrete can be obtained. 2. Economical Centrifugal processing removes water, giving high strength, denseness and greater loading capacity compared with ordinary Square-shaped piles. This means the reduction of concrete in the cross section is made possible. Transportation cost also shall be reduced. 3. Durability Centrifugal processing makes possible denser concrete than by hand filling vibrator operation. Therefore the durability against corrosion is very high.
4. Quick delivery Concrete strength of more than 500 kg/cm2 can be obtained after steam curing + 7 days, which shortens the time of delivery after the receipt of order.
5. Easy handling KOBE Spun Piles have a hollow cylindrical section, making it easier to handle for transport and installation of the piles compared with square shaped piles since they have no directivity as cross section. 6. High resistance to handling Introducing compressive stress into concrete by using PC wires is giving a big handling durability, then subsequently large resistant moment can be obtained in spite of small dimension. 7. High bearing capacity KOBE Spun Piles are manufactured with high strength concrete, they have much greater load resistance than PC Piles. 8. High resistance to shock By the uniform induction of the prestressed to the piles, KOBE Spun Piles compensate tensiles stress caused by catoptric waves generated by driving which cause piles to crack. Driving shock resistance and load resistance of KOBE Spun Piles are extremely high, so these piles are most appropriate for a construction requiring the penetration into intermediate layers with considerably high N-values. KOBE - Prestressed Concrete Spun Piles
Technical Data PC - Spun Pile Outside Diameter (mm)
Type
e (kg/cm2)
Mcr (t.m)
Mult (t.m)
Ra (t)
Pe (t)
Length (m)
A B C A B C A B A B C A B C A B C
40 80 100 40 80 100 40 80 40 80 100 40 80 100 40 80 100
2.5 3.5 4.0 3.5 5.0 6.0 5.5 7.5 7.5 11.0 12.5 10.5 15.0 17.0 17.0 25.0 29.0
3.8 6.3 8.0 5.3 9.0 12.0 8.3 13.5 11.3 19.8 25.0 15.8 27.0 34.0 25.5 45.0 58.0
50 45 40 60 55 55 80 75 100 90 85 125 115 105 170 155 145
72.6 67.5 65.4 93.1 86.4 85.0 121.1 114.4 149.5 139.1 134.9 185.3 174.9 169.0 252.7 238.3 229.5
6-13 6-13 6-13 6-15 6-15 6-15 6-15 6-15 6-15 6-15 6-15 6-15 6-15 6-15 6-16 6-16 6-16
300
350
400
450
500
600
Note: e = Effective Prestressed Mcr = Cracking Bending Moment (t.m) Mult = Ultimate Bending Moment (t.m)
D (mm) 300
Type
Ra Pe
T (mm)
= Allowable Permanent Axial Load (ton) (JIS A 5335) = Allowable Axial Load (ton) (ACI 543)
Cross Section (t.m)
Unit Weight (t.m)
500
6
240
7.0
12
240
9.0
10
240
7.0
8
285
7.0
16
285
C
9.0
12
285
A
7.0
10
325
7.0
20
325
7.0
12
370
60
452
0.118
B
B
65
75
582
766
0.151
0.199
7.0
22
370
C
B
9.0
20
370
A
7.0
14
410
B
7.0
26
410
9.0
24
410
7.0
20
500
9.0
24
500
9.0
32
500
80
90
930
1159
0.242
0.301
C A 600
Dp (mm)
7.0
A 450
NOs
B A
400
Dia (mm)
A C 350
PC Wire
B
100
1571
0.408
C Note: other type & PC Wire arrangement can be produced based on requirement
KOBE - Prestressed Concrete Spun Piles
Specif cation PC - Spun Pile (JIS A 5335) Upper / Middle Pile
Single / Bottom Pile
3 KOBE - Prestressed Concrete Spun Piles
1. Casting
Flow
KOBE PC-Spun P
2. Prestressing
ȋȌ
ȋȌ
ȋȌ
5. Demoulding KOBE - Prestressed Concrete Spun Piles
6. Stockyard
wsheet
Pile Production
3. Spinning
4. Curing
7. Distribution KOBE - Prestressed Concrete Spun Piles
Mamira Shoe
Mamira Shoe
Unit: mm Dimension
Dia D
Thickness T
T1
T2
H
E
R
300
60
6
2
100
35
85
350
65
6
2
100
35
85
400
75
6
2
100
35
85
450
80
6
2
150
35
135
500
90
9
2
150
35
135
600
100
9
2
150
35
135
KOBE - Prestressed Concrete Spun Piles
Conical Shoe (Pencil Shoe)
Conical Shoe (Pencil Shoe)
Single/Bottom Pile D (mm)
Shoe Dimension
Shoe Attachment
Steel Bar Attachment
h1 (mm)
h2 (mm)
h (mm)
a (mm)
b (mm)
t (mm)
d (dia) (mm)
I (mm)
NOs (Pcs)
300
350
80
30
100
120
2
10
500
6
350
300
80
30
100
120
2
10
500
6
400
350
80
30
100
120
2
10
500
6
450
330
80
100
100
200
2
10
500
6
500
380
80
100
100
200
2
13
500
6
600
480
80
100
100
200
2
13
600
8
7 KOBE - Prestressed Concrete Spun Piles
Sectional Properties
Welding Joint
Unit : mm Dia (mm)
Thickness
300
60
350
65
400
75
450
80
500
90
600
100
KOBE - Prestressed Concrete Spun Piles
Type A B C A B C A B A B C A B C A B C
Dimension T1
T2
H
A
K
12
2
100
4,2
8.0
12
2
100
4,2
8.5
2
100
4,2
9.5
2
150
4,4
10
2
150
4,4
11
2
150
4,4
12
12 16 12 16 12 16 12 16
Quality Control KOBE Spun Piles shall be produced in accordance to JIS 5335-1987 Raw Material Raw Material for KOBE PC Spun Pile shall generally be as follows:
TYPE a. Cement
CODE/STANDARDS
DESCRIPTION
SNI 15-2049
Ordinary Portland Cement Type I
JIS A 5308
Aggregates for Ready Mix Concrete, For coarse aggregate, Max Size 20 mm
ASTM C 494 or JIS A 6204
Standard Specification for Chemical Admixture Type G, Calcium Chloride Free. Standard Type Water Reducing Chemical Admixture
SNI 1155 or Equivalent
Uncoated Stress Relieved Steel Wire for Prestressed Concrete KBJP 7 mm, KBJP 9 mm
e. Spiral Wire
JIS G 3532 or Equivalent
Low Carbon Steel Wire SWM-B
f. Joint Plate
JIS G 3101
Rolled Steel for General Structure SS-400
-
Shall not contain any detrimental amount of oils, acid, salts, etc.
b. Aggregates
c. Chemical Admixture
d. Prestressing Steel
g. Water
Compressive Strength test of concrete Compressive strength test will be done for each daily production work for the age of 1 day (before stress introduction). 7 days & 14 days (delivery period) and 28 days accordingly. Characteristic cube strength in accordance with Indonesian National Standard SNI 03-1974 should be 600 kg/cm2 (K 600) or equivalent with minimum cylinder strength (fck’) of 500 kg/cm2. Pile Bending Test Pile bending test of mainbody shall be made accordance to clause 8 Bending Strength Test of JIS A 5335 - 1987. Unless specified otherwise, one pile of every 500 piles of the same diameter and type produced will be proof tested by Bending Stength Test. The Test will be considered as satisfactory if no visual crack occured at the load corresponding to its M Crack. Appearance and dimension check Appereance and dimension check are done for each finished product with the following criterions: Description
Tolerance
Crack
No Visual Crack
Outside
+5 mm -2 mm
Wall Thickness
-0 mm + not specified
Length
0,3 % of PC Pile Length
Angle between joint plate and pile Axis
90° + 20’
2 0 1 3
website : www.kobe-concrete.com
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Factory
Jl. Raya Cikarang Cibarusah No. 99, Sukaresmi - Cikarang Selatan, Bekasi 17550 - Indonesia Phone : (62-21) 8990 6813 (Hunting) Fax. : (62-21) 8990 6683
J U N I
Office
Jl. Raya Cikarang Cibarusah No. 99, Sukaresmi - Cikarang Selatan, Bekasi 17550 - Indonesia Phone : (62-21) 897 5558 (Hunting) Fax. : (62-21) 8990 6762 E-mail : [email protected]
