Do & Dont In Construction Works

PENGAWASAN PENGAWASAN TAPAK PROJEK & KERJA TAPAK PROJEK & KERJA KONKRIT BERDASARKAN SPESIFIKASI KONKRIT BERDASARKAN SPESIFIKASI PIAWAI KERJA BANGUNAN JKR PIAWAI KERJA BANGUNAN JKR –– 20052005

Ir. Muhammad Ir. Muhammad AzmanAzman bin bin JamrusJamrus, CKSAJ, , CKSAJ, IbuIbu PejabatPejabat JKR MalaysiaJKR Malaysia

DO’S & DON’TSDO’S & DON’TS

PENGAWASAN TAPAK PROJEK & KERJA KONKRIT BERDASARKAN SPESIFIKASI PIAWAI KERJA BANGUNAN JKR – 2005

Do’s & Don’tsDo’s & Don’ts

JabatanJabatan KerjaKerja Raya MalaysiaRaya Malaysia





Kompleks Pelancongan, Pulau Banding, Gerik Kompleks Pelancongan, Pulau Banding, Gerik

Project collapse upon completion



Persimpangan Bertingkat Ke Projek Perumahan SP Setia, NKVE Persimpangan Bertingkat Ke Projek Perumahan SP Setia, NKVE

Bridge collapse during construction



Kompleks Equestrian, Terengganu Kompleks Equestrian, Terengganu

Structures collapse during construction


KURSUS PENGAWASAN TAPAK PROJEK & KERJA KONKRIT BERDASARKAN SPESIFIKASI PIAWAI KERJA BANGUNAN JKR – 2005

SMK Raja Muda, SelangorSMK Raja Muda, Selangor

Building failed earlier than design life



Do have a proper detailing for cantilever concrete gutter ...

SMK Raja Muda, SelangorSMK Raja Muda, Selangor



IKBN Kinarut, Sabah

Do consider differential settlement of earth filling & piled structures



MRR2MRR2

Do have a proper design for all D&B project



Hospital Cheras

Don’t cut excessively trees



Pembangunan Kampus II INSPEN, SepangPembangunan Kampus II INSPEN, Sepang

Don’t let our project cause floods



Don’t have services blocking our road side drains

Don’t let drain be left un-maintained





Don’t let silt traps be left un-maintained

Don’t have large areas without silt traps



Hospital CherasHospital Cheras

Don’t have silt trap poorly done




Don’t have temporary earth drain w ith deep & steep slope




Don’t let the site muddy with no temporary drainage provided



Status Kualiti Kerja TanahStatus Kualiti Kerja Tanah

• Kaedah “Sand Replacement Method”telah dijalankan bagi ujian“compaction test”dikawasantambakyang memerlukan “compaction”.

• (90 % of relative maximum density test)

Ujian Pemadatan (compaction test)



KerjaKerja--kerja Cerunkerja Cerun

Cerun yang sempurna



Pemasangan “Capping Beam ” tidak sempurna dan“unreinforced ” untuk menahan tekanan dari “strutting”

Sekiranya‘horizontal reinforcement ’ tidak mencukupi tekanan mendatar (lateral force) yang dikenakan kepada sisi “capping beam” akan menyebabkan “concrete crushed”

Kerja-Kerja Pemasangan U-Drain

Status Kualiti KerjaStatus Kualiti Kerja --kerja Perparitankerja Perparitan



Lukisan bagi ‘Capping Beam ’

Status Kualiti KerjaStatus Kualiti Kerja --kerja Perparitankerja Perparitan

Kerja-Kerja Pemasangan U-Drain



Tiada ‘berm’ dan ‘toe drain ’ walaupun ketinggian melebihi 5 meter.




Unsuitable material yang telah dikorek dan dikumpulkan sebelum dikeluarkan dari tapak...



Projek KK2 Taiping, PerakProjek KK2 Taiping, Perak

Rekabentuk Sistem Saliran Permukaan Berpandukan MASMA : Bio-ecological Drainage System(BIOECODS)

Do have project like this ~ Retention pond designed as a recreational area



Projek KK2 Taiping, PerakProjek KK2 Taiping, Perak

Perimeter Grass Swale

Rekabentuk Sistem Saliran Permukaan Berpandukan MASMA : Bio-ecological Drainage System(BIOECODS)



JPJ Langkawi, Kedah.JPJ Langkawi, Kedah.

Don’t let piles be driven w ithout looking at BQ (pre boring specified)



ASWARA, Kuala LumpurASWARA, Kuala Lumpur

Don’t simply cut slopes w ithout geotechnical advice



Projek Pembinaan Jambatan Di Atas Sungai Pahang Chenor , Maran, PahangProjek Pembinaan Jambatan Di Atas Sungai Pahang Chenor , Maran, Pahang

Do have concrete for bored piles poured at least 1000mm above cut-off level.



Do look at Construction Draw ing

Istana Negara, Jalan Duta, Kuala Lumpur .Istana Negara, Jalan Duta, Kuala Lumpur .



Don’t let contractor do w hatever he likes



KURSUS PENGAWASAN TAPAK PROJEK & KERJA KONKRIT BERDASARKAN SPESIFIKASI PIAWAI KERJA BANGUNAN JKR – 2005

Do look at Construction notes...




At Construction Site




Don’t let be pad foundation jeopardised




Jabatan Kecemasan Hospital Tengku Ampuan Rahimah, Klang SelangorJabatan Kecemasan Hospital Tengku Ampuan Rahimah, Klang Selangor

Pemasangan Papak Pra-tuang

Don’t cut holes/voids in Precast Slabs at site. It should be specified and done at the factory with QC by manufacture.



UiTM SelayangUiTM Selayang



Projek Klinik Kesihatan Jenis 2 (KK2) Senaw ang, Negeri SembilanProjek Klinik Kesihatan Jenis 2 (KK2) Senaw ang, Negeri Sembilan

Pemasangan Dinding Bata

Don’t have masonry walls laid for stiffener without tie rods and exmat at every 4 layers...



SMK Teluk Cempedak, PahangSMK Teluk Cempedak, Pahang

Don’t have poorly done formwork with less of grout...



Pembinaan Pusat Latihan POLIS (PULAPOL), P. Langkaw i, KedahPembinaan Pusat Latihan POLIS (PULAPOL), P. Langkaw i, Kedah

Hostel Block ~ Don ’t have brick w alls with no stiffeners



Projek UIA(Bangunan Farmasi), Kuantan Don’t let huge trusses be mishandled

Projek Institut Latihan Diplomasi dan Hubungan Luar Nagara, Wisma Putra KL Not handled properly



Sekolah Kebangsaan Bintong, Pulau PinangSekolah Kebangsaan Bintong, Pulau Pinang

Don’t have design fault (Local Buckling)



Projek Pejabat Agama, Dungun, Terengganu.

Don’t install of roof tiles w ithout proper wall plate (wooden peg left in place)



ADTECH, Taiping, Perak.ADTECH, Taiping, Perak.

Don’t let beam designed without reference to truss design



Stiffener were not built

ADTECH, Taiping, Perak.ADTECH, Taiping, Perak.



Projek Dewan Makan Universiti Islam Antarabangsa (2004)Projek Dewan Makan Universiti Islam Antarabangsa (2004)

• Agihan genting konkrit secara sekata• Pembinaan ‘wall plate’ yang sempurna



Sekolah Menengah Simpang Ampat, Seberang Perai SelatanSekolah Menengah Simpang Ampat, Seberang Perai Selatan

Don’t let truss sit directly on slab subjected to overflowing water

• Improper maintenance• Anti-rust specification• Signs corrosion



Projek Mahkamah Kuala LumpurProjek Mahkamah Kuala Lumpur

Don’t sit heavy light fitting directly on ceiling



Don’t let ceiling hang by wires

Projek Mahkamah Kuala LumpurProjek Mahkamah Kuala Lumpur



Projek Jalan Masuk Sisa Toksid Bukit Nenas Negeri Sembilan Projek Jalan Masuk Sisa Toksid Bukit Nenas Negeri Sembilan

Don’t backfill earthwork from one side only



Projek Membina Jalandan Jambatan Kedua Permas Jaya, Johor Bahru Projek Membina Jalandan Jambatan Kedua Permas Jaya, Johor Bahru

Do read draw ing & specification Joint in adjacent sheaths shall be staggered by at least 300mm



Do have comman sense. Prestressing tendon not protected/covered from weather with water proofing material to avoid corrosion.

Projek Membina Jalandan Jambatan Kedua Permas Jaya, Johor Bahru Projek Membina Jalandan Jambatan Kedua Permas Jaya, Johor Bahru



Pembinaan Jambatan No. FT005/252/80, Laluan Persekutuan 5, Alor Gajah, MelakaPembinaan Jambatan No. FT005/252/80, Laluan Persekutuan 5, Alor Gajah, Melaka

Don’t certify a project completed. Starter bars there, but intermediate diaphragm not constructed.



Cadangan Penggunaan Semula ‘Tie Frame’ MRRII sebagai jejantas pejalan kaki di Cadangan Penggunaan Semula ‘Tie Frame’ MRRII sebagai jejantas pejalan kaki di Laluan Persekutuan 5, Seksyen 446, Di Hadapan Sek. Keb. Sementa, KlangLaluan Persekutuan 5, Seksyen 446, Di Hadapan Sek. Keb. Sementa, Klang

Water pipe was laid by punching through the w all of roads side drain.

Deviation of anchor bolts deviated from the centreline of pile cap.

Don’t have poorly constructed works



Jambatan Sungai Kemaman TeregganuJambatan Sungai Kemaman Teregganu

Do be careful w hen you have high embankment on soft soil

Embankment fill has been removed

Abutment ‘B’ was shifted 150mm towards river due slope failure of approach embankment.



Membina Jambatan Baru Bersebelahan Jambatan Merdeka : Pakej C1Membina Jambatan Baru Bersebelahan Jambatan Merdeka : Pakej C1

Sagging of walk way slab

Tranverse beam not constructed below walk way slab (Not following construction drawing)

Do read construction drawing



Arrangement of reinforcement for tranverse beam not follow ing construction drawing.

Insufficient reinforcement anchorage length provided at arch beam.

Membina Jambatan Baru Bersebelahan Jambatan Merdeka : Pakej C1Membina Jambatan Baru Bersebelahan Jambatan Merdeka : Pakej C1



Do use steel formw orks to produce high quality of concrete finishing.




Piers: Good concrete finishing




Do have a design for scaffolding certified by PE.




Projek Jln Lingkaran Luar Butterw orth : Pakej1B Projek Jln Lingkaran Luar Butterw orth : Pakej1B –– Jambatan Sungai Perai (BORR)Jambatan Sungai Perai (BORR)

QUALITY CONTROL DURING CONSTRUCTION

The segments were water cured for fourteen (14) days, followed by the application of a curing compound for a further seven (7) days. In this period of curing, the segments were protected from direct w ind and sun in the curing chamber .

Curing of segment with automatic sprinkling system

Curing of segment with mist (fogging)







View of Twin Leaf Pier Ribbed Finishes

General View of The Ramp




Final Connection of Main Segments And Site Frames...




Do understand our CONTRACTDo understand our CONTRACT

• Obligation of the Government

• Obligation of the Contractors



Do & Don’tsDo & Don’ts

Do look at DRAWINGSDo look at DRAWINGS

• Construction Drawings

• Details

• Notes




Do look at Do look at BQ, MOM & SPECIFICATIONSBQ, MOM & SPECIFICATIONS

• Method of Construction

• Quality of finish product




THANK YOUTHANK YOU

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Do & Dont In Construction Works