Laporan Akhir Praktik Kerja PROYEK PEMBANGUNAN SENTRALAND JALAN KI MANGUNSARKORO 36 - SEMARANG

  

Laporan Akhir Praktik Kerja

PROYEK PEMBANGUNAN SENTRALAND

  

JALAN KI MANGUNSARKORO 36 - SEMARANG

Disusun Oleh :

Kho, Wilson Khoenadi

  

12.12.0007

PROGRAM STUDI TEKNIK SIPIL

FAKULTAS TEKNIK

UNIVERSITAS KATOLIK SOEGIJAPRANATA

SEMARANG

  

2015

  Laporan Akhir Praktik Kerja PROYEK PEMBANGUNAN SENTRALAND JALAN KI MANGUNSARKORO 36 - SEMARANG Disusun Oleh : Kho, Wilson Khoenadi 12.12.0007 PROGRAM STUDI TEKNIK SIPIL FAKULTAS TEKNIK UNIVERSITAS KATOLIK SOEGIJAPRANATA SEMARANG 2015

  

Lembar Pengesahan Praktik Kerja

PROYEK PEMBANGUNAN SENTRALAND

  

JALAN KI MANGUNSARKORO 36 – SEMARANG

Disusun Oleh :

  

Kho, Wilson Khoenadi

12.12.0007

Telah diperiksa dan setujui, Semarang,……………………………….

  Dekan Fakultas Teknik Dosen Pembimbing

Dr. Ir. Djoko Suwarno, M.Si. Dr. Ir. Djoko Suwarno, M.Si.

SURAT KETERANGAN TIDAK PLAGIASI

  

Tanggal : 05 Februari 2016

Tentang : PERNYATAAN KEASLIAN LAPORAN PRAKTIK KERJA PROYEK

PEMBANGUNAN SENTRALAND JALAN KI MANGUNSARKORO 36 –

SEMARANG

PERNYATAAN KEASLIAN PRAKTIK KERJA

  

Dengan ini kami menyatakan bahwa dalam laporan praktik kerja yang berjudul

ini “Proyek Pembangunan Sentraland Jalan Ki Mangunsarkoro 36 - Semarang”

tidak terdapat karya yang pernah diajukan untuk memperoleh nilai mata kuliah

praktik kerja, dan sepanjang pengetahuan saya juga tidak terdapat karya atau

pendapat yang pernah ditulis atau diterbitkan oleh orang lain kecuali yang tertulis

diacu dalam naskah ini dan disebutkan dalam daftar pustaka.

  

Apabila dikemudian hari ternyata terbukti bahwa laporan praktik kerja ini sebagian

atau seluruhnya hasil plagiasi, maka saya rela untuk dibatalkan, dengan segera akibat

hukumnya sesuai peraturan yang berlaku pada Univesitas Katolik Soegijapranata

dan/atau peraturan perundang – undangan yang berlaku.

  Semarang, 5 Februari 2016 (Kho, Wilson Khoenadi) NIM : 12.12.0007

KATA PENGANTAR

  Puji dan syukur penulis panjatkan kehadirat Tuhan YME atas segala

kebaikanNya, karena atas rahmatNya laporan praktik kerja yang berjudul Proyek

Pembangunan Sentraland Jalan Ki Mangunsarkoro No. 36 Semarang dapat diselesaikan dengan baik. Laporan ini disusun dengan melewati beberapa tahapan yang melibatkan

berbagai pihak sebagai pendukung. Oleh karena itu, penyusun mengucapkan terima

kasih kepada:

  1. Bapak Dr. Ir. Djoko Suwarno, M.Si. selaku Dekan Fakultas Teknik Program Studi Teknik Sipil Universitas Katolik Soegijapranata Semarang dan selaku Dosen Pembimbing selama praktik kerja serta dalam penyusunan laporan kerja praktek ini.

  2. PT. Jakarta Rencana Selaras yang telah memberi kesempatan untuk kerja praktek ini.

  3. Bapak Sutarman, Saudara Mukti dan Saudara Agung yang telah membimbing selama pelaksanaan kerja praktek ini.

  4. Orang Tua yang selalu mendukung.

  

5. Teman-teman teknik sipil dari semua angkatan atas segala dukungannya.

  6. Semua pihak yang telah banyak membantu penyusun, baik secara moril maupun materil, yang tidak dapat disebutkan satu per satu.

  Penyusun menyadari bahwa penyusunan laporan ini masih memiliki banyak

kekurangan. Untuk itu penyusun berharap adanya saran dan kritik yang membangun

demi kesempurnaan laporan ini. Akhirnya penulis berharap semoga laporan ini dapat

bermanfaat bagi semua pihak khususnya bagi kalangan Teknik Sipil.

  Semarang, Januari 2016 Penulis

KARTU ASISTENSI

SURAT PERMOHONAN IJIN KERJA PRAKTEK

KETERANGAN DITERIMA KERJA PRAKTEK

SURAT PERINTAH KERJA

BIMBINGAN KERJA PRAKTEK

  12.12.0007 Kho, Wilson Khoenadi

KETERANGAN SELESAI KERJA PRAKTEK

SURAT UCAPAN TERIMA KASIH

  DAFTAR ISI HALAMAN JUDUL ········································································ i

HALAMAN PENGESAHAN ····························································· ii

SURAT KETERANGAN TIDAK PLAGIASI ········································ iii

KATA PENGANTAR ······································································ iv

KARTU ASISTENSI ······································································· v

SURAT PERMOHONAN IJIN KERJA PRAKTEK ································ vi

SURAT KETERANGAN DITERIMA KERJA PRAKTEK ······················· vii

SURAT PERINTAH KERJA ····························································· viii

SURAT BIMBINGAN KERJA PRAKTEK ··········································· ix

SURAT KETERANGAN SELESAI KERJA PRAKTEK ·························· x

SURAT UCAPAN TERIMA KASIH ··················································· xi

DAFTAR ISI ················································································· xii

DAFTAR TABEL ··········································································· xiv

DAFTAR GAMBAR ········································································ xv

BAB I PENDAHULUAN ··································································

  1

  

1.1 Latar Belakang Proyek ························································

  1

  

1.2 Lokasi Proyek ··································································

  2

  

1.3 Fungsi Bangunan ······························································

  3

  

1.4 Tata Cara Pelelangan ··························································

  4 BAB II PENGELOLA PROYEK ························································

  6

  

2.1 Uraian Umum ··································································

  6

  

2.2 Pemilik Proyek ·································································

  6

  

2.3 Konsultan Perencana ··························································

  7

  

2.4 Konsultan Pengawas ··························································

  8

  

2.5 Pelaksana ·······································································

  9 BAB III PELAKSANAAN ·································································

  11

  

3.1 Metode Pelaksanaan ···························································

  11

3.1.1 Pekerjaan Struktur Bawah ·············································

  11

  3.1.1.1 Pondasi Tiang Pancang ········································

  11

  3.1.1.2 Pile Cab ··························································

  14

  3.1.1.3 Tie Beam ························································

  18

  3.1.1.4 Retaining Wall ··················································

  19

3.1.2 Pekerjaan Struktur Atas ················································

  21

  3.1.1.1 Kolom ····························································

  21

  3.1.1.2 Balok dan Plat Lantai ··········································

  27

  3.1.1.3 Shear Wall ·······················································

  36

  3.1.1.4 Tangga ···························································

  38

  3.1.1.5 Dinding Parapet ················································

  41

  3.1.1.6 Dinding Bata Ringan ··········································

  44

3.2 Peralatan dan Alat Berat ······················································

  46

3.2.1 Peralatan ·································································

  47

3.2.2 Alat Berat ································································

  68

  

3.3 Bahan – Bahan ·································································

  76

  

3.4 Pengendalian Proyek ··························································

  92

  3.4.1 Pengendalian Mutu (Quality Control) ·······························

  92

  3.4.2 Pengendalian Waktu (Time Control) ·································

  94

  3.4.3 Pengendalian Biaya (Cost Control) ··································

  95

3.5 Permasalahan ···································································

  96

  3.5.1 Faktor Alam ·····························································

  96

  3.5.2 Faktor Manusia ··························································

  96

  3.5.3 Faktor Alat ·······························································

  97 BAB IV PENUTUP ·········································································

  98

  

4.1 Kesimpulan ·······································································

  98

  

4.2 Saran ··············································································

  99 DAFTAR PUSTAKA ······································································· 100 LAMPIRAN ··················································································

  DAFTAR TABEL Tabel 1.1 Fungsi Bangunan Sentraland Semarang tiap Lantai .................................

  3 Tabel 3.1 Tipe Pile cap...............................................................................................

  15 Tabel 3.2 Tabel penulangan kolom ............................................................................

  23

  DAFTAR GAMBAR Gambar 1.1 Peta Lokasi Proyek ................................................................................

  34 Gambar 3.30 Proses finishing plat .............................................................................

  30 Gambar 3.23 Bekisting shaff ......................................................................................

  30 Gambar 3.24 Proses penulangan balok ......................................................................

  31 Gambar 3.25 Proses penulangan plat lantai ...............................................................

  32 Gambar 3.26 Pembersihan lokasi plat yang akan dicor dengan blower ....................

  33 Gambar 3.27 Pengiriman beton dengan truck mixer ..................................................

  33 Gambar 3.28 Proses pengecoran ................................................................................

  34 Gambar 3.29 Pengecekan tebal plat dengan tulangan baja ........................................

  35 Gambar 3.31 Pembongkaran bekisting ......................................................................

  29 Gambar 3.21 Proses pemasangan bekisting plat lantai ..............................................

  35 Gambar 3.32 Tulangan shear wall di area fabrikasi besi ...........................................

  36 Gambar 3.33 Pengangkutan tulangan shear wall .......................................................

  36 Gambar 3.34 Bekisting shear wall .............................................................................

  37 Gambar 3.35 Proses pengecoran shear wall pada malam hari ..................................

  37 Gambar 3.36 Bekisting shear wall yang sudah dilepas .............................................

  38 Gambar 3.37 Pemasangan perancah pada tangga ......................................................

  39 Gambar 3.38 Bekisting plat tangga ............................................................................

  39 Gambar 3.39 Penulangan tangga ...............................................................................

  29 Gambar 3.22 Proses pengukuran shaff .......................................................................

  28 Gambar 3.20 Proses pemasangan tembereng .............................................................

  2 Gambar 2.1 Struktur Organisasi Manajemen Konstruksi pembangunan Sentraland .

  18 Gambar 3.9 Proses penulangan tie beam ...................................................................

  9 Gambar 3.1 Bagian-bagian tiang pancang .................................................................

  12 Gambar 3.2 Denah Pilecap ........................................................................................

  13 Gambar 3.3 Alat Hydraulic Static Pile Driver (HSPD) .............................................

  14 Gambar 3.4 Proses penggalian menggunakan excavator ...........................................

  16 Gambar 3.5 Proses pemotongan tiang menggunakan bor listrik................................

  16 Gambar 3.6 Pompa untuk proses dewatering ...........................................................

  17 Gambar 3.7 Proses pembuatan bekisting pile cap .....................................................

  18 Gambar 3.8 Proses penulangan pile cap ....................................................................

  19 Gambar 3.10 Proses penulangan retaining wall ........................................................

  28 Gambar 3.19 Proses pemasangan bodeman ...............................................................

  20 Gambar 3.11 Bekisting retaining wall .......................................................................

  20 Gambar 3.12 Pabrikasi tulangan sengkang kolom dengan bar bender ......................

  22 Gambar 3.13 Pemasangan sepatu kolom menggunakan las.......................................

  22 Gambar 3.14 Tempat pabrikasi bekisting vertikal pada ground floor .......................

  24 Gambar 3.15 Perakitan tulangan kolom di ground floor ...........................................

  25 Gambar 3.16 Pengangkutan bekisting kolom menggunakan tower crane .................

  25 Gambar 3.17 Proses pengecoran pada kolom ............................................................

  26 Gambar 3.18 Bagian-bagian perancah .......................................................................

  40

Gambar 3.40 Proses pemasangan bekisting anak tangga ...........................................

  73 Gambar 3.70 Dump truck ...........................................................................................

  64 Gambar 3.63 Penggunaan Hilti Epoxy Gun pada beton ............................................

  66 Gambar 3.64 Generator set ........................................................................................

  67 Gambar 3.65 Tower crane..........................................................................................

  68 Gambar 3.66 Concrete pump .....................................................................................

  69 Gambar 3.67 a Excavator merk Hyundai 220-9SH ..................................................

  70 Gambar 3.67 b Excavator merk Hitachi EX120 .......................................................

  70 Gambar 3.68 Elevator ................................................................................................

  72 Gambar 3.69 Truk mixer ............................................................................................

  75 Gambar 3.71 Semen ...................................................................................................

  63 Gambar 3.62 a Mesin trafo las merk Lakoni Falcon 205E ........................................

  76 Gambar 3.72 Besi tulangan ........................................................................................

  77 Gambar 3.73 Proses penuangan beton ke bekisting ...................................................

  78 Gambar 3.74 Sikabond ...............................................................................................

  79 Gambar 3.75 Cairan anti rayap ..................................................................................

  80 Gambar 3.76 Kawat bendrad .....................................................................................

  81 Gambar 3.77 Beton tahu ............................................................................................

  82 Gambar 3.78 Persediaan bata ringan ..........................................................................

  83 Gambar 3.79 Skimcoat merk Dry Mix .......................................................................

  64 Gambar 3.62 b Mesin trafo las merk Morris ..............................................................

  61 Gambar 3.61 Waterpass .............................................................................................

  40 Gambar 3.41 Persiapan pengecoran tangga ...............................................................

  45 Gambar 3.50 Pengacian partisi ..................................................................................

  41 Gambar 3.42 Tangga yang baru saja di cor................................................................

  41 Gambar 3.43 Tulangan dinding parapet .....................................................................

  42 Gambar 3.44 Besi siku dan dudukan bekisting ..........................................................

  42 Gambar 3.45 Stop cor bagian samping tulangan parapet ...........................................

  42 Gambar 3.46 Bekisting parapet ..................................................................................

  43 Gambar 3.47 Pengangkutan bata ringan ....................................................................

  44 Gambar 3.48 Pemasangan bata ringan .......................................................................

  44 Gambar 3.49 Dinding bata ringan ..............................................................................

  45 Gambar 3.51 a Mesin Concrete Vibrator ...................................................................

  59 Gambar 3.60 Bagian-bagian theodolit .......................................................................

  47 Gambar 3.51 b Kabel Concrete Vibrator ...................................................................

  47 Gambar 3.52 Air Compressor ....................................................................................

  49 Gambar 3.53 Mesin Trowel .......................................................................................

  50 Gambar 3.54 Electric Pipe Threader ........................................................................

  51 Gambar 3.55 Mesin gerinda potong ...........................................................................

  53 Gambar 3.56 Concrete Bucket yang sedang beroperasi .............................................

  54 Gambar 3.57 Bagian-bagian Perancah .......................................................................

  55 Gambar 3.58 Bar cutter..............................................................................................

  57 Gambar 3.59 Steel bar bending machine ...................................................................

  84

Gambar 3.80 Pengangkutan material perekat bata ringan dengan elevator ...............

  85 Gambar 3.81 a Pasir ...................................................................................................

  86 Gambar 3.81 b Kerikil................................................................................................

  86 Gambar 3.82 Lem perekat HILTI HIT-RE 500 .........................................................

  87 Gambar 3.83 Pemasangan besi cakar ayam ...............................................................

  88 Gambar 3.84 Proses penyambungan pipa ..................................................................

  89 Gambar 3.85 Stop cor pada dinding parapet ..............................................................

  90 Gambar 3.86 Tangki penampungan air ......................................................................

  91 Gambar 3.87 Sampel beton umur 28 hari yang akan di uji (K350) ...........................

  92 Gambar 3.88 Hasil slump test ....................................................................................

  93 Gambar 3.89 Pembuatan sampel beton ......................................................................

  94 Gambar 3.90 Pekerja tidak menggunakan helm dan sarung tangan saat pembesian .

  95 Gambar 3.91 Tempat sampah ....................................................................................

  96

  Jalan Ki Mangunsarkoro No. 36 Semarang

BAB I PENDAHULUAN

1.1 Latar Belakang Proyek Provinsi Jawa Tengah memiliki Ibu Kota yang berada di Kota Semarang.

  o o o o

  Berada diantara garis 109 35’ dan 110 50’ Bujur Timur serta 6 50’ dan 7 40’ Lintang Selatan. Sebagai Kota yang geostrategis, Kota Semarang menjadi simpul transportasi daerah Jawa Tengah, sehingga perkembangan kota bertumbuh dengan pesat.

  Perkembangan kota yang pesat berdampak pula pada perkembangan ekonomi di Kota Semarang. Kegiatan ekonomi menyerap Sumber Daya Manusia (SDM) yang banyak, membuat arus migrasi mengalami peningkatan dan berdampak pada kepadatan dan jumlah penduduk. Menurut data Badan Pusat Statistik Kota Semarang (2013), pertumbuhan penduduk dari tahun 2008 hingga 2012 mengalami kenaikan sebanyak 77.558 jiwa, sehingga pada tahun 2012 jumlah penduduk mencapai 1.559.198 jiwa.

  Tingginya peningkatan jumlah penduduk mengakibatkan kebutuhan tempat tinggal meningkat pula. Sarana transportasi seperti stasiun, terminal maupun bandar udara menunjang akses menuju kota ini. Para investor memandang kemudahan akses tersebut sebagai salah satu faktor meningkatnya kebutuhan tempat tinggal. Hal tersebut mempengaruhi nilai investasi di Kota Semarang sehingga meningkat sebesar 1,7 triliun, karena jumlah investor pada tahun 2009 mengalami peningkatan menjadi 2.253 jiwa (Badan Pelayanan Perijinan Terpadu Kota Semarang, 2010).