HDB Precast Circular

HDB Precast Circular 4/2016 page 1 of 3

Building & Infrastructure Group Our Ref: 453-20-04-0039 Ref: 453-20-04-0039 Circular No: HDB No: HDB PC 4/2016 7 Jun 2016 See Distribution List Dear Sir/Madam,

(A) (B)

(A)

GUIDELINES FOR CIVIL & STRUCTURAL STRUCTURAL CONSULTANT’S VISITS TO PRECAST PLANTS FOR HDB BUILDING PROJECTS CALIBRATION OF EQUIPMENT USED FOR PRODUCTION OF PRECAST COMPONENTS FOR HDB BUILDING PROJECTS GUIDELINES FOR CIVIL & STRUCTURAL CONSULTANT’S VISITS TO PRECAST PLANTS FOR HDB BUILDING PROJECTS

Part (A) of this circular serves to inform Civil & Structural (C&S) consultants of the guidelines for their visits to precast plants.

2 Besides supervision supervision of construction works at project site, C&S Qualified Persons (QPs) are responsible for the supervision of works at precast plants for HDB building projects. C&S consultants are expected to pay regular visits to precast plants to supervise the quality of the precast components. Apart from the first inspection inspection of precast components components specified in Clause 6.3.4 “Manufacturing “Manufacturing Requirements” Requirements” of  of Standards Specifications Specifications for Building Works and Other Installations, we observed that the number of consultant’s  consultant’s  visits to supervise the quality of precast components in precast plants varied widely across building projects. As precast production spans over many months at different locations locally and overseas, a systematic approach should be adopted by C&S consultants in their planning of visits to precast plants.

GUIDELINES 3 C&S consultants would need to pay at least one plant visit every month for each building project. The following factors may be taken into consideration when C&S consultants plan their visits to precast plants: a) Precast volume b) Key structural elements c) Component quality

4 C&S QP may appoint the design engineer and resident engineer to perform the check on component quality. The design engineer or the resident engineer shall sign in attendance and indicate name of consultant and HDB building projects at plant RTO ’s office. office.

HDB Precast Circular 4/2016 page 2 of 3 IMPLEMENTATION 5 C&S consultant shall collate and submit a monthly summary of visits for all projects using the Excel file enclosed. Please submit to Mr Halifi Bin Ramli ([email protected]) and Ms Ng Wan Pheng ([email protected]) by 10 th  day of the following month. This shall be implemented with effect from Jul 2016 i.e. the summary of visits in Jul 2016 should be submitted by 10th Aug 2016.

(B)

CALIBRATION OF EQUIPMENT USED FOR COMPONENTS FOR HDB BUILDING PROJECTS

PRODUCTION OF

PRECAST

6 Part (B) of this circular serves to remind C&S consultants on the regulatory requirement on calibration of equipment used in precast production for HDB building projects. 7 Pre-stressing jacks and gauges are used in the production of pre-stressed planks. C&S QP supervising the project shall ensure that only equipment with valid calibration certificate is used for precast production. For details on calibration of equipment, please refer to the enclosed BCA circular on “Calibration of equipment for pile   load test by SAC-SINGLAS accredited laboratories” (refer to Annex 2). 8 All material testing and equipment calibration for local production shall be carried out by SAC-SINGLAS accredited laboratories. For overseas production, material testing and equipment calibration shall be carried out by SAC-SINGLAS accredited laboratories or other accredited body under the Mutual Recognition Arrangement (MRA) with SAC. C&S QPs shall check that the laboratories are accredited to perform the services required. 9 Please disseminate this circular to your project team in-charge of HDB building projects. If you need further clarification, you may contact Mr Tan Heng Hai at [email protected] or 64902479.

Yours faithfully Wong Chuen Long Deputy Director Engineering Services Section 2 Building & Infrastructure Group

Enclosure:  Annex 1: Excel File “Summary of Consultant Visit to Precast Plant”  Annex 2: BCA Circular “Calibration of equipment for pile load test by SAC-SINGLAS accredited laboratories”

HDB Precast Circular 4/2016 page 3 of 9  Annex 2 – BCA Circular “Calibration of equipment for pile load test by SAC -SINGLAS accredited laboratories”

HDB Precast Circular 4/2016 page 4 of 9

HDB Precast Circular 4/2016 page 5 of 9

DISTRIBUTION LIST (via email only) Architectural and Civil & Structural Consultants 3PA International 336 Smith Street #05-306 New Bridge Centre S(050336) [email protected] ADDP Architects LLP 59A Tanjong Pagar Road S(088480) [email protected] AEDAS Pte Ltd 10 Hoe Chiang Road #11-01 Keppel Towers S(089315) [email protected] AGA Architects Pte Ltd 250 Tanjong Pagar Road #06-01 St Andrew’s Centre S(088541) [email protected] Architects Vista Pte Ltd 865 Mountbatten Road #06-25 Katong Shopping Centre S(437844) [email protected] ARUP Singapore Pte Ltd 10 Hoe Chiang Road #26-01 Keppel Towers S(089315) [email protected] Axis Architects Planners Pte Ltd 102E Pasir Panjang Road CITILINK Warehouse Complex S(118529) [email protected] Beca Carter Hollings and Ferner (S.E.A.) 51 Anson Road #12-51 Anson Centre S(079904) [email protected] [email protected] CSYA Pte Ltd 5 Keong Saik Road S(089113) [email protected]  [email protected] Design Link Architects Pte Ltd 60A Peck Seah Street Heritage Court S(079323) [email protected]

HDB Precast Circular 4/2016 page 6 of 9 DE Consultants(S) Pte Ltd 153 Telok Ayer Street S(068610) [email protected] DP Architects 6 Raffles Boulevard #04-100 Marina Square S(039594) [email protected] E2000 Pte Ltd 1 Pearl Bank #01-02 Pearl Bank Apt S(169016) [email protected] Ecas-Ej Consultant Pte Ltd 16 Jalan Kilang #03-01/02 Hoi Hup Building S(159416) [email protected] KTP Consultants Pte Ltd 3791 Jalan Bukit Merah #05-18 E-centre @ Redhill S(159471) [email protected] [email protected] Laud Architects Pte Ltd 510 Thomson Road, #02-08 SLF Building S(298135) [email protected] LOOK Architects Pte Ltd 18 Boon Lay Way #09-135 TradeHub 21 Singapore 609966 [email protected] Meinhardt (Singapore) Pte Ltd 168 Jalan Bukit Merah #09-01 Surbana One S(150168) [email protected] MKPL Architects Pte Ltd 150 Cecil Street, #12-00 S(069543) [email protected] Ong & Ong Pte Ltd 510 Thomson Road #11-00 SLF Building S(298135) [email protected] [email protected]

HDB Precast Circular 4/2016 page 7 of 9 P&T Consultants Pte Ltd 24 Raffles Place #23-00 Clifford Centre S(048621) [email protected] [email protected] [email protected] Rankine & Hill (Singapore) Pte Ltd 510 Thomson Road #07-00 SLF Building S(298135) [email protected] RDC Architects Pte Ltd 152 Beach Road #14-08 Gateway East S(189721) [email protected] Ronnie & Koh Consultants Pte Ltd 28 Sin Ming Lane Midview City #06-138 S(573972) [email protected] RSP Architects Planners & Engineers (Pte) Ltd 15 Scotts Road #07-00 Thong Teck Bldg S(228218) [email protected]  [email protected] SCDA Architects 8 Teck Lim Road S(088385) [email protected] Surbana Jurong Pte Ltd 168 Jalan Bukit Merah Surbana One S(150168) [email protected] T H Chuah & Partners LLP 190 Middle Road #11-04 Fortune Centre S(188979) [email protected] Tan + Tsakonas Architects 39A Bussorah Street S(199457) [email protected] Web Structures Pte Ltd 40 Carpenter Street S(059919) [email protected] [email protected] WOHA 29 Hongkong Street S(059668) [email protected] 

HDB Precast Circular 4/2016 page 8 of 9 RESIDENT TECHNICAL OFFICERS c/o Greenmark Construction Pte Ltd 175A Bencoolen Street #08-12 Burlington Square Singapore 189650 [email protected]

PRECAST CONCRETE COMPONENTS SUPPLIERS CES-Precast Pte Ltd 3 Tampines Industrial Street 6 S(528816) [email protected] Concrete Innovators Co Pte Ltd 42 Pioneer Sector 2 S628393 [email protected] Eastern Pretech Pte Ltd 15 SungeiKadut St 2 S(729234) [email protected] Econ Precast Pte Ltd 26 Kranji Way S(739436) [email protected] [email protected] Excel Precast Pte Ltd 2 Tampines Industrial St. 62 S(528818) [email protected] [email protected] G & W Precast Pte Ltd 1 Tampines Industrial Street 62 S(528774) [email protected] HL Building Materials Pte Ltd 7A Tuas Ave 13 S(638979) [email protected]  [email protected] Poh Cheong Concrete Product (Pte) Ltd No.48 SungeiKadut St 1 S(729377) [email protected] PPI Engineering Pte Ltd 32 Seletar North Link S(797612) [email protected]

HDB Precast Circular 4/2016 page 9 of 9 Prefab Technology (Pte) Ltd 66 SungeiKadut Street 1 S(729367) [email protected] Robin Village Development Pte Ltd 63 Tuas South Avenue 1 S(638798) [email protected] [email protected] SEF Construction Pte Ltd 33 Kaki Bukit Road 6 S(415808) [email protected]  Sinstar Precast Pte Ltd 58 Seletar North Link S(797613) [email protected] Sunway Concrete Products (S) Pte Ltd 4 Tampines Industrial Street 62 S(528817) [email protected] Syscon Pte Ltd 30 Tuas Bay Drive S(637548) [email protected] [email protected]