SIRIM STANDARD ONLY · 2019. 12. 23. · 4.1.1 Precast square pile . In lengthening of piles, the mild steel end plates are jointed centrally and axially and subjected to full penetration

SIRIM STANDARD

SIRIM XX:2019

ICS: 91.100

Specification for joint plates and shoes

for precast concrete piles

© Copyright 2018

SIRIM Berhad

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SIRIM STANDARD SIRIM Berhad is a premier total solutions provider in quality and technology innovations that helps industries and businesses to compete better through every step of the business value chain. SIRIM Berhad is the centre of excellence in standardisation, facilitating industries and businesses in enhancing their production and competitiveness, protecting consumers’ health and safety, and giving them the choice for quality products and services. As a standards development organisation, SIRIM Berhad has extensive expertise in standards research and consultancy which helps industries and businesses to meet local and international requirements and practices, through the development of SIRIM Standards. SIRIM Standards are developed according to SIRIM standardisation procedures, which are in line with

international practices that ensure appropriate notification of work programmes and participation of

interested parties. SIRIM Standards are developed through consensus by committees, which consist of

experts in the subject matter. The use of SIRIM Standards is voluntary, and it is open for adoption by

regulators, government agencies, associations, industries, professional bodies, etc.

For further information on SIRIM Standards, please contact: Standards Department SIRIM STS Sdn Bhd (Company No. 448249 - A) 1, Persiaran Dato’ Menteri Section 2, P.O. Box 7035 40700 Shah Alam Selangor Darul Ehsan MALAYSIA Tel: 60 3 5544 6314/6909 Fax: 60 3 5510 8830 Email: [email protected] http://www.sirimsts.my

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© SIRIM Berhad 2019 - All rights reserved i

Contents

Page

Foreword ............................................................................................................................... ii

1 Scope ........................................................................................................................ 1

2 Normative references ................................................................................................ 1

3 Terms and definitions ................................................................................................ 2

4 Types of joint plates ................................................................................................... 2

5 Types of pile shoes.................................................................................................... 3

6 Material requirements ................................................................................................ 6

7 Welding ..................................................................................................................... 6

8 Dimensional requirements ......................................................................................... 7

9 Testing ...................................................................................................................... 8

10 Marking ..................................................................................................................... 8

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ii © SIRIM Berhad 2019 - All rights reserved

Foreword This SIRIM Standard was developed by the Project Committee on Joint Plates and Shoes for Precast Concrete Piles established by SIRIM Berhad. This standard was developed with the following objectives: a) to understand the requirements and importance of pile joints for building and civil

engineering works;

b) to provide comprehensive standard that specifies requirements for joints plates and shoes for precast concrete piles; and

c) to be used as a guidance by users and manufacturers. This standard will be subjected to review to reflect current needs and conditions. Users and other interested parties may submit comments on the contents of this standard for consideration into future versions. Compliance with this standard does not by itself grant immunity from legal obligations.

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© SIRIM Berhad 2019 - All rights reserved 1

Specification for joint plates and shoes for precast concrete piles

1. Scope This standard specifies the requirements for joint plates and shoes which are intended to be used in manufacturing of concrete piles as described in MS 1314:Part 1 to MS 1314:Part 6. This standard does not cover the installation and jointing of piles on site.

2. Normative references The following normative references are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the normative reference (including amendments) applies. MS 146, Steel for the reinforcement of concrete - Weldable reinforcing steel - Bar, coil and decoiled product - Specification MS 1314:Part 1, Precast concrete piles: Part 1: General requirements and specifications MS 1314:Part 2, Precast concrete piles: Part 2: Method for determination of bending strength of precast concrete piles (bend test) MS 1314:Part 3, Precast concrete piles: Part 3: Precast reinforced concrete square piles (RC piles) - Class M, Class J and Class S MS 1314:Part 4, Precast concrete piles: Part 4: Precast pretensioned spun concrete piles (spun piles) - Class A, Class B and Class C MS 1314:Part 5, Precast concrete piles: Part 5: Precast prestressed concrete square piles - Class PC-X, Class PC-Y, small piles Class PCS-1 and Class PCS-2 MS 1314:Part 6, Precast concrete piles: Part 6: Small reinforced concrete square piles - small piles class RCS-1 and class RCS-2 MS 1492, Welding - Recommendations for welding of metallic materials MS EN 10025-2, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels MS EN 10025-3, Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized/ normalized rolled weldable fine grain structural steels MS EN 10025-4, Hot rolled products of structural steels - Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels MS EN 10025-5, Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

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2 © SIRIM Berhad 2019 - All rights reserved

MS EN 10025-6, Hot rolled products of structural steels - Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition BS EN 1561, Founding - Grey cast irons ASTM A769, Standard specification for carbon and high-strength electric resistance forge-welded steel structural shapes

3. Terms and definitions For the purposes of this standard, the terms and definitions given in MS 1314 (all parts) and the following apply. 3.1 joint plate Fabricated steel component to connect the ends of two piles.For square pile, it includes centering bar, perimeter skirting and anchorage bar. For spun pile, it include perimeter skirting/band. 3.2 pile shoe Fabricated component or cast component to protect and reinforce the tip of a starter pile.

4. Types of joint plates 4.1 Standard types of joint plates 4.1.1 Precast square pile In lengthening of piles, the mild steel end plates are jointed centrally and axially and subjected to full penetration field butt welding. The standard detail of precast square pile joint plate is shown in Figure 1.

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Figure 1. Precast square pile joint plate detail 4.1.2 Precast pretensioned spun pile The standard detail for precast pretensioned spun pile joint plate is shown in Figure 2.

Key

D Outer diameter of pile R Root A Throat thickness W Width

Figure 2. Precast pretensioned spun pile joint plate detail

4.2 Special type of plate For special type of joint plate, the detailed dimensional drawing and design shall be subjected to agreement between manufacturer and purchaser.

Anchorage Bar

Anchorage Bar

Base plate

Pipe

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5. Types of pile shoes 5.1 Standard types of pile shoes 5.1.1 Precast square pile The standard types of pile shoes used for precast square pile are shown in Figure 3.

Mild steel plate

Type 1: Flat shoe

Solid cast iron

Type 2: Cast iron shoe

Mild steel plate

Type 3: Fabricated pointed shoe

Steel dowel

Type 4: Rock shoe (Oslo shoe)

Mild steel plate

Type 5: X-pointed shoe

Figure 3. Standard types of pile shoes for precast square pile

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5.1.2 Precast pretensioned spun pile The standard types of pile shoes used for spun pile are shown in Figure 4.

Type 1: Cross fin shoe

Type 2: Oslo point shoe

Type 3: Pipe shoe

Figure 4. Standard types of pile shoes for spun pile

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5.2 Special type of pile shoe For special type of pile shoe, the detail dimensional drawing and design shall be subjected to agreement between manufacturer and purchaser.

6. Material requirements

6.1 Mild steel plate

The mild steel plate shall be minimum of grade S275 in accordance with MS EN 10025 series. 6.2 Reinforcement bar

The material used shall be minimum of grade B500B in accordance with MS 146.

6.3 Cast iron The material used shall comply with BS EN 1561. 6.4 Shaft The material used shall be grade SS41 or equivalent.

7. Welding The method of welding shall comply with one of the following standards, i.e. MS 1492, ASTM A769 or equivalent.

7.1 Workmanship Welding joints shall be visibly free from spatters, cracks, undercuts, pitting, degraded craters, slag inclusion, blowholes or other welding defects.

8. Dimensional requirements 8.1 Dimensions of a joint plate square pile The dimensions and specifications of the joint plate shall comply with the following Table 1.

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Table 1. Dimensions requirement for joint plate square pile

Pile type Nominal size

Small RC square pile plate 100 mm, 125 mm, 150 mm, 175 mm

Large RC square pile plate: Class “S” 200 mm, 225 mm, 250 mm, 275 mm, 300 mm, 325 mm, 350 mm, 375 mm, 400 mm and 450 mm

Large RC square pile plate: Class “J” & Class “M” 200 mm, 250 mm, 300 mm, 350 mm, 400 mm and 450 mm

To facilitate demoulding, the top width (b1) of pile should be greater than the bottom width (b2), but not exceeding 10 mm. The cross-sectional area of pile shall not be less than that specified for the section with true vertical sides (refer Figure 5).

Figure 5. Dimensions of a joint plate square pile

8.2 Dimensions of a joint plate spun pile The minimum thickness of steel plate for pile joint shall be 12 mm for pile sizes diameter 250 mm, 300 mm and 350 mm. The minimum thickness of steel plate for pile joint shall be 15 mm for pile sizes diameter 400 mm and above. A mild steel skirt plate of not less than 1.5 mm thick and 50 mm high around the edges of the joint plate should be provided. 8.3 Dimensions of a pile shoe for precast square pile The dimensions of a pile shoe for precast square pile are as specified in Table 2.

b1 +10 mm

– 0 mm

b2 +10 mm

– 0 mm

b3 +10 mm

– 0 mm

Top

Depth

Depth

Rounded edges

b = nominal size

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Table 2. Dimensions of pile shoe for precast square pile

Type of pile shoe Description of tolerance

Type 1: Flat/Plain shoe

The minimum thickness of mild steel plate of the flat shoe shall be 6 mm. The sleeve shall be minimum 50 mm height and minimum 1.5 mm thickness. The length of anchorage bar shall be minimum 35 times the diameter of the main reinforcement for square pile size of less than 200 mm and minimum 32 times the diameter of the main reinforcement for square piles size of 200 mm and above. The diameter of the anchorage bar is specified in Annexes A and B.

Type 2: Cast iron shoe

The minimum height of the cast iron shoe shall be 75 mm. The length of the centre bar shall be 35 times the size of the diameter of the main reinforcement for square pile size of less than 200 mm and minimum 32 times of the diameter of the main reinforcement for square piles size of 200 mm and above. The diameter of the centre bar is specified in Annexes A and B.

Type 3: Fabricated pointed shoe

The minimum height of the shoe shall be 150 mm and the thickness of the mild steel plate shall be not less than 8 mm. The length of the centre bar shall be 35 times the size of the diameter of the main reinforcement for square pile size of less than 200 mm and minimum 32 times of the diameter of the main reinforcement for square piles size of 200 mm and above. The diameter of the centre bar is specified in Annexes A and B.

Type 4: Rock shoe (Oslo shoe)

The minimum thickness of the fin shall be the same as the joint’s base plate as specified in Annex A and Annex B. The minimum height of the fin shall be 100 mm and the minimum height of extended Oslo point shall be 75 mm from the top of the fin. The length of the base shall follow Figure 4a or Figure 4b. The minimum central shaft diameter shall be 20 mm.

Thickness 6 mm, min.

Cast iron

Height 75 mm, min.

Height 100 mm, min.

Same thickness

for fin and plate

Height 100 mm, min.

Height 75 mm, min.

Thickness 8 mm, min.

Length of base.

Anchorage bar

Anchorage bar

Anchorage bar

Anchorage bar

Length of base.

or

4a

4b

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Table 2. Dimensions of pile shoe for precast square pile (continued)

Type of pile shoe Description of tolerance

Type 5: X-pointed shoe

The thickness of the fin shall be the same as the joint base plate as specified in Annexes A and B. The minimum height shall be 100 mm. The length of the base shall follow the diagonal of the pile joint.

8.4 Dimensions of a pile shoe for precast spun pile The dimensions of a pile shoe for precast pile are as specified in Table 3.

Same thickness

for fin and plate

Height 100 mm, min. Length of base.

Anchorage bar

Length of base.

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Table 3. Dimensions of pile shoe for precast spun pile

Type of pile shoes Description of tolerance

Plan

Elevation

Elevation with base plate

Plan with base plate

Type 1: Cross fin shoes

The thickness of the fin shall be minimum of 12 mm. The minimum height shall be 50 mm.

Height 50 mm,

min.

Thickness 12 mm, min

Fillet Weld

Height 50 mm,

min.

Thickness 12mm, min

Fin diameter

Base plate diameter

Fin diameter


Thickness

12 mm, min

Mild steel Cross fin. Base plate thickness

Thickness 12 mm,

min

Fillet weld.


Mild steel Cross fin.

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Table 3. Dimensions of pile shoe for precast spun pile (continued)


Elevation with full base plate

Plan with full base plate

Type 1: Cross fin shoes (continued)

The thickness of the fin shall minimum of 12 mm. The minimum height shall be 50 mm.

Type 2: Oslo shoes

The shaft diameter shall be minimum of 50 mm. Minimum fin height shall be 220 mm.


Height

50 mm, min.

Base plate

thickness Base plate diameter

Base plate

diameter


Thickness

12 mm, min

Fillet Weld

Mild steel Cross-Fin .

Base plate thickness

Fillet weld

High tensile

shaft

Mild steel

plate

Shaft diameter 50 mm, min

Height 220 mm, min

Plan

Side view

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Table 3. Dimensions of pile shoe for precast spun pile (continued)

9. Testing 9.1 Dimension The dimensions of joint plate and shoe shall be checked and shall comply with the requirements in Clause 8.

10. Marking of the RC square pile joint plate and shoe Every batch shall be marked with the following information: a) manufacturer’s name, trademark or brand name; b) type of joint plate or pile shoe;

c) size for concrete pile according to MS 1314;


Type 3: Pipe shoes

The fin height shall be minimum of 250 mm. Minimum number of fin shall be 6.

Mild

steel fins

Mild

steel

pipe

Height 250 mm, min

Fillet weld Base plate

diameter

Side view Plan

Mild

steel fins

Mild

steel

pipe

Fillet weld

Height 250 mm, min

Pipe shoes

base diameter

Side view without base plate Plan without base plate

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d) manufacturing date or batch number; and

e) certification mark and license number.

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Annex A (normative)

Manufacturing details for small RC square pile (100 mm to 175 mm)

Type and class of pile requirements

Class of Piles and manufacturing requirements

Class RCS-1 Class RCS-2

Minimum anchorage bar diameter

1.0 % of cross sectional area of

a minimum of 4 bars 0.8 % of cross sectional area of

a minimum of 4 bars

Length shall be minimum 35 times the diameter of anchorage bar.

Minimum diameter of anchorage bar is 10mm.

Minimum thickness of mild steel plate for joint

6mm 6mm

Centering bar

Minimum diameter of 12 mm

Total length is 150 mm External centre bar is 1/2 of total length (minus thickness of steel

plate) Internal center bar is 1/2 of total length (minus

thickness of steel plate)

Nominal size

Square section of 100 mm, 125 mm, 150 mm and 175 mm

Standard length

3 m and 6 m

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Annex B (normative)

Manufacturing details for large RC square pile (200 mm to 450 mm)

Details Class of piles and manufacturing requirements

Class M Class J Class S

Minimum anchorage bar diameter

1.2 % of cross-sectional area of as minimum of 4 bars

1.0 % of cross-sectional area of a minimum of 4

bars

0.8 % of cross-sectional area of a minimum of 4

bars

NOTE. Minimum bar size shall not be less than 10 mm. Length shall be 32 times the diameter of anchorage bar

Minimum thickness of mild steel base plate for joint

Minimum plate Pile size Minimum plate Pile size

thickness thickness

9 mm 200 mm, 225 mm

12 mm 200 mm, 250 mm

9 mm 250 mm, 275 mm

300 mm, 325 mm

15 mm 300 mm, 350 mm

400 mm, 450 mm 12 mm 350 mm, 375 mm

400 mm, 450 mm

Centering bar

Pile size

Bar size (dia)

Total length is 300 mm

Pile size Bar size (dia)

Total length is 150 mm

External center bar

Internal center bar

External center bar

Internal center bar

200 mm and

250 mm

16 mm 1/3 of total

length (minus

thickness of mild steel

base plate)

2/3 of total length (minus


base plate)

200 mm to

250 mm

16 mm

1/2 of total length

(minus

thickness of mild

steel base plate)

1/2 of total length

(minus


base plate)

300 mm

20 mm

350 mm

to 450 mm

25 mm

275 mm

to 450 mm

20 mm

Perimeter skirting

The mild steel perimeter skirting plate shall not be less than 1.5mm thick and 50mm high.

Nominal size

Square sections of 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm

Square sections of 200 mm, 225 mm, 250 mm, 275 mm, 300 mm, 325 mm, 350 mm, 375 mm,

400 mm and 450 mm

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Acknowledgements

SIRIM Berhad would like to thank the members of the Project Committee on Joint Plates and Shoes for Precast Concrete Piles who have contributed their ideas, time and expertise in the development of this standard. Mr Md Adha Rahmat/ Mr Wan Ahmad Jailani Wan Mahmud (Chairman)

SIRIM QAS International Sdn Bhd

Mr Mohd Ikhwan Abdullah/ Ms Siti Hadijah Hassan (Technical Secretary)

SIRIM STS Sdn Bhd

Ir Sin Wai Ho/ Ir K Sundraraj A Krishnasamy

Association of Consulting Engineers Malaysia

Mr Tan Hoe Tong/ Mr Cheng Teh Aik/ Mr Edwin Chan Keng Wai

Concrete Engineering Products Berhad

Mr Faizal Amir Mohd/ Mr Loh Zhi Ming

Industrial Concrete Products Sdn Bhd

Ir Tien Loy Bong/ Mr Hooi Wing Chuen

Institution of Engineers Malaysia

Mr Shahrizal Abd Rasid

Jabatan Kerja Raya

Mr Wong Ka Kong/ Mr Wayne Wong Shauhun/ Mr Ian Wong Shauhun

LCS Metal Works Sdn Bhd

Mr Hasnol Zakaria SIRIM QAS International Sdn Bhd (Product Certification & Inspection Department)

Mr Azam Mohamad/ Mr Hanon Nazir Mohd Basir

SIRIM QAS International Sdn Bhd (Testing Services Department)

Ms Norfaizah Nasir

SIRIM STS Sdn Bhd

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© Copyright 2019

All rights reserved. Unless otherwise specified, no part of this standard may be reproduced or utilised in any form

or by any means, electronic or mechanical, including photocopying, recording or otherwise, without prior written

permission from SIRIM Berhad.

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Documents

SIRIM STANDARD ONLY · 2019. 12. 23. · 4.1.1 Precast square pile . In lengthening of piles, the mild steel end plates are jointed centrally and axially and subjected to full penetration