Bambang Pudjianto
Departemen Teknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275

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KAJIAN PERILAKU DINAMIK STRUKTUR JEMBATAN PENYEBERANGAN ORANG (JPO) 2 LANTAI AKIBAT BEBAN MANUSIA YANG BERGERAK Indarto, Himawan; Pudjianto, Bambang; Nurhuda, Ilham
TEKNIK Vol 38, No 1 (2017): (Juli 2017)
Publisher : Diponegoro University

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Abstract

Jembatan Penyeberangan Orang (JPO) dengan bentang panjang dan JPO dengan lantai bertingkat, mulai banyak di bangun di kota-kota besar di Indonesia. JPO dibangun sebagai sarana penghubung dari satu bangunan ke bangunan lainnya, sekaligus berfungsi sebagai jembatan penyeberangan lalu lintas yang berada di bawahnya. Bentuk struktur yang langsing membawa konsekuensi, bahwa struktur JPO rentan terhadap masalah getaran. Masalah munculnya getaran pada struktur JPO pada saat orang melewati jembatan, akan menyebabkan ketidak-nyamanan bagi pengguna jalan. Getaran yang muncul pada JPO dapat diakibatkan oleh karena frekuensi getar alami dari struktur JPO yang terlalu besar, atau terjadinya resonansi yang diakibatkan karena frekuensi getar beban yang melewati JPO mendekati frekuensi getar alami dari struktur. Pada perencanaan struktur JPO, asumsi bahwa beban pejalan kaki merupakan beban statik dengan hanya satu arah komponen beban kearah vertikal, adalah tidak tepat. Beberapa penelitian telah membuktikan bahwa beban orang yang bergerak merupakan beban dinamik yang mempunyai tiga komponen arah beban, yaitu arah vertikal, longitudinal, dan lateral. Dari hasil penelitian diketahui bahwa, beban pejalan kaki yang bersifat dinamik pada struktur JPO 2 Lantai, akan menyebabkan deformasi struktur 1,55 kali lebih besar  dibandingkan dengan deformasi yang didapat dari analisis statik. Hal ini kiranya perlu diperhatikan di dalam perencanaan struktur JPO, agar didapatkan perencanaan yang memenuhi syarat kekuatan dan kekakuan, sehingga tidak menyebabkan terjadi permasalahan getaran pada saat digunakan. 
EVALUATION OF BRT SERVICE PERFORMANCE IN SEMARANG CITY. CASE STUDY : CORRIDOR II, UNGARAN - TERBOYO Rasyid, Ilham Hussein; Z., Aldila Bachtawar; Ismiyati, Ismiyati; Pudjianto, Bambang
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Public Transport is one of the solutions to resolve the traffic in urban area, particularly in Semarang City. Therefore, Semarang City Government provided the public transports in the form of Bus Rapid Transport (BRT) Corridor I (the route of Mangkang ? Penggaron) and Corridor II (the route of Ungaran ? Terboyo Bus Station). According to the service performance evaluation to BRT Corridor I by Adyan and Salman in 2012, it was found that the Load Factor was 44,73%, and it did not meet the standard of PP.No.41/1993 and SK. Dirjen no.687 stating that the minimum load factor is 70%. Though the service provided was better than other public transportation. Therefore, an evaluation is required to the service performance on BRT Corridor II to determine whether BRT corridor II has the same problem as BRT Corridor I and how the solution to be used as a reference to the next corridor. This research applied the methodology of Dynamic Survey on BRT, Static Survey, Origin Destination Survey and Home Base Survey. Based on the survey and analysis results, it was obtained that the Load Factor by 23.51% is below the standard. In conclusion, the service performance of BRT Corridor I and BRT Corridor II was experiencing the same problem from the aspect of efficiency and effectiveness which is in accordance with the applicable standards but it was found in the field that the load factor was less than 70%. Based on the Home Base Survey, the non-users who are around BRT Route suggested that the manager should be more intensive in socializing BRT to communities and pay attention on the punctuality of BRT travel time. There are still a lot of transport other than BRT operating on the same route, which also resulted in a lack of BRT Load Factor because people tend to choose the transport that can stop anywhere, and it is in contrary with the purpose of the Public Transport. The researcher suggested that BRT and public transports other than BRT are under one management in terms of all the transportations stop in the shelters and have the same service standard. According to survey and analysis, Route from Ungaran to Pemuda and Raden Patah to Ungaran use BRT, whereasPemuda to Terboyo and Terboyo to Raden Patah use feeder transport in other to minimalize cost and make time around become quick, and according to analysis load factor from corridor I and II, prove BRT not too effective presents in Semarang City.
PENERAPAN METODE CRASHINGPROYEK PEMBANGUNAN ELIZABETH BUILDING RS. SANTO BORROMEUS PAKET 1 BANDUNG Handri Putra, Vincensius Palma Ragajiwandana; Andriansyah, Arief; Wibowo, Mochammad Agung; Pudjianto, Bambang
JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Project scheduling system is of great importance in the implementation of construction project. To create an effective implementation of construction projects and efficient, all sorts of things should be well planned. In planning the construction of St. Elizabeth Hospital Building borromeous package 1 in Bandung , the author intends to carry out the project duration by accelerating simulation takes into account the magnitude of the project costs incurred. Authors applied the method to simulate the acceleration of crashing the project. In completing this final project, the authors use multiple sources of data, namely the curve S plan, budget plan (RAB), shop drawings projects, and interviews with experts. The research methods used in the final project is to design a network (network planning), calculate the amount of labor required, calculate the costs (direct costs) and indirect costs (indirect costs) on any activity that changes due to changes in the duration of implementation, acceleration duration of the implementation of each heading of work, calculation of cost slope, and the determination of cost and optimum duration of crashing as a result of the application of the method .Final results on Elizabeth Building Development projects RS . Santo Borromeous package 1 Bandung, crashing process is done in two scenarios in which each - each carried 11 times simulation. Based on the graph the relationship between time and cost, obtain the most optimal duration, ie the duration of the minimum total cost is the total project duration of 259 days on the job Crashing 10 occurred in the 1st floor with a slope that is equal to the value of cost Rp.1,861,065.00 per days. Shortening the duration of the Structural Work Level 1 for 7 days, from the normal duration Structural Work Level 1 by 77 days to 70 days . This causes a change in direct costs (direct costs) the normal duration of Rp.46.892.151.077, 89 increased by Rp.117.521.52, be Rp.47.009.672.594.89 , changes in indirect costs (indirect costs) the normal duration of Rp.1,484 .832.000,00 reduced by Rp.428.316.923,00 to Rp. 1,056,515,077.00 and the total cost of the changes from the normal duration of the cost Rp.48.376.983.077,89, reduced by Rp.310.795.400 becomes Rp.48.066.187.677,89. Changes in the cost of the total project cost of the project is equal to ± 0.64 % .
PERENCANAAN REAKTIVASI JALAN REL KERETA API KORIDOR MAGELANG – AMBARAWA Nugroho, Rizqi; F. P., Giovanny Natasha; Narayudha, Moga; Pudjianto, Bambang
JURNAL KARYA TEKNIK SIPIL Volume 5, Nomor 2, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Highway Traffic on Semarang ? Magelang track was having a significant increased of traffic flow, the degree saturation of highways and travel time, and decreased of vehicle speed. An alternative is required to overcome conditions. In accordance with the Railways Master Plan of Central Java Province, for Semarang ? Magelang track, the railway corridor Magelang ? Ambarawa is one of the reactivation form of the non active railway. Feasibility study of railway reactivation of Semarang ? Magelang track in 2013, potential train passengers by 2038 pnp/day, the potential for freight transport by 7.7 tons/day and supported by the existing of rail way which can be reactivated. Based on topography with the avarage flatness is 20 o/oo, there are 3 alternatives for railway track that was developed with the utilization of existing track along 21.9 km and selected alternative track along 13,1 km. From the result of potential analysis of the passanger and existing condition are using grade 4th for railway grade plans with overall planning is based on the previsons of PM No. 60 in 2012, KM. No. 52 in 2000, and PD PJKA No. 10 in 1986.
EVALUASI DAN OPTIMASI SIMPANG BANGKONG DAN MILO KOTA SEMARANG Julianti, Marlina; Setiadita, Prima; Pudjianto, Bambang; Purwanto, Djoko
JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Semarang city as a big city develop rapidly as centre business, trade, and government in Central Java faced with transportation problems such as traffic congestion caused by the volume of road vehicles with the road capacity is not balanced. The result of analysis of existing conditions with reference, Bangkong Intersection dominant currents in the western and eastern approach that shows the performance of intersections with an average degree of saturation 1,218  that means in excess of the ideal number. In the eastern approach Bangkong Intersection in the peak of morning, afternoon and evening, long queue reached 95 m, 219 m, and 219 m. To value the average intersection delay 62.46 sec/smp , 235.24 sec/smp, and 137.68 sec/smp. While in Milo Intersection, average DS values 1,100 that means in the excess of the ideal number. Long queues at the eastern approach Milo Intersection in the peak morning, afternoon and evening is 108 m, 242 m, and 242 m. To value the average intersection delay with a value of 36.99 sec/smp, 65.39 sec/smp, and 108.16 sec/smp.To get the operation optimization Simpang Bangkong and Milo made simulations by showing 3 scenarios. It was made the scenario 1 is the green time adjustments resulting DS same value in every second approach the intersection. Scenario 2 is to change LTOR into LT with the result being a greater capacity, the DS becomes small, a larger queue length, and delay be small. Next, scenario 3 is made by changing into a one-way system. Here after devised scenario 3, is one way system to produce a DS value becomes smaller, a small queue length, delay values are relatively larger. For QL values obtained Bangkong Intersection 44 m, 40 m, and 99 m. the average of intersection delay values 46.88 sec/smp, 38.27 sec/smp , and 40.74 sec/smp.  For Milo Intersection, the value of QL is 27, 15 m, and 18 m. Value of the average intersection delay 8.81 sec/smp, 32.60 sec/smp , and 7.61 sec / smp. The results of the analysis with 3 scenarios show that one way system scenario has better performance with consideration of this scenario prioritize large traffic flow from west to east and toward the opposite.
ANALISIS KERUSAKAN DAN PENANGANAN RUAS JALAN PURWODADI - GEYER Junoto, Bambang; Supranyoto, Supranyoto; Pudjianto, Bambang; YI.Wicaksono, YI.Wicaksono
JURNAL KARYA TEKNIK SIPIL Volume 6 ,Nomor 1, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Jalan raya Purwodadi- Geyer merupakan bagian dari ruas Purwodadi ? Solo. Berdasarkan fungsinya,termasuk jalan kolektor primer, berfungsi menghubungkan kabupaten Grobogan dengan kota Solo. Ruas jalan Purwodadi-Geyer terdiri dari tipe jalan 4/2 D dengan perkerasan lentur  serta 2/2 UD  dengan perkerasan lentur dan perkerasan beton semen. Sepanjang jalan tersebut terdapat banyak kerusakan jalan dan yang paling parah terjadi pada perkerasan lentur. Ada beberapa faktor yang menyebabkan kerusakan jalan antara lain muatan berlebih (overload), kegagalan struktur, tanah dasar dan lingkungan yang berkaitan dengan drainase jalan. Kendaraan niaga dengan muatan berlebih di indikasi menjadi faktor utama pada kerusakan jalan ruas jalan Purwodadi-Geyer. Hal ini sesuai data lalu lintas harian rata-rata tahun 2012 dan tahun 2013 dimana golongan 6A dan 6B mendominasi dengan presentase masing- masing sebesar 20,58% serta 20,91%. Untuk  itu kami mencoba menganalisa kerusakan dan ketebalan perkerasan ruas jalan Purwodadi-Geyer pada khususnya. Sehingga memberikan solusi peningkatan kualitas pelayanan jalan,sesuai dengan umur rencana.Dari hasil analisis didapatkan CBR tanah dasar rencana sebesar 3,3 %. Untuk Pertumbuhan lalu lintas pertahun didapatkan nilai 8,196 % serta untuk jalan tipe 2/2 UD nilai DS sebesar 1,84 . Dimana nilai tersebut sudah tidak memenuhi standart yang disyaratkan sehingga di lakukan pelebaran menjadi tipe 4/2 D. Mengenai nilai dari indeks tebal perkerasaan lentur yang ada untuk tahun 2015 didapatkan 11,80 dan  lapis overlay di dapatkan tebal sebesar 9 cm. Untuk tebal perkerasan lentur rencana hingga akhir 2025 didapatkan ITP sebesar 15,00. Dengan susunan perkerasan pada pelebaran jalan sebagai berikut AC 19 cm, LPA 20 cm, LPB 35 cm. Sedangkan hasil dari evaluasi eksisting beton semen tebal 25 cm hanya mampu melayani masa layannya sampai akhir 2018 dan didapatkan nilai betal beton semen rencana hingga akhir 2025 dengan tebal 26,5 cm. Dengan penambahan tebal beton 1,5 cm, maka dikonversi ke  perkerasan lentur sehingga nilai tebal komposit sebesar 4 cm. Dari hasil analisis kami menyimpulkan untuk perkerasan ruas jalan Purwodadi-Geyer, berkaitan dengan kapasitas jalan perlu dilalukan pelebaran jalan. Mengenai lapis permukaan, khususnya pada perkerasan lentur perlu dilakukan peningkatan dengan cepat untuk mengurangi kerusakan yang ada.
PENGARUH PENUTUPAN PINTU PERLINTASAN JALAN REL TERHADAP KINERJA LALU LINTAS JALAN RAYA DI PERLINTASAN KALIGAWE SEMARANG DAN KALIWUNGU KENDAL Yusyadiputra, Mukthy; Hermawanto, Robby; Pudjianto, Bambang; Yulipriyono, Eko
JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The Intersection between railway crossings with roads have any problems, especially when the railway gate were closed while trains pass. The problem is the queue of vehicles and the time of vehicle back to normal before the crossings opened. Geometric of Kaligawe Road is 4/2D with all types of vehicles and Kaliwungu is 2/2UD dominated by light vehicles. Both are in the class of primary arterial road. The data was collected by surveying directly at the two railway ? roadway crossing at peak hours in the morning, afternoon, and evening. The data were taken during the normal flow is the flow rate (flow) vehicle, traffic speed, road geometric, and a long stream of vehicles crossing back to normal when the railway gate is opened. Meanwhile, when the railway gate is closed is the speed of shockwave, railway gate closing time, and a queue of vehicles. The data was then analyzed using the shockwave method, the capacity of the road using Highway Capacity Manual guidelines (MKJI) 1997 and theoretically Greenshields models are then compared the results, in order to obtain the queue length and time of return to normal road traffic due to the effect of the closure of crossings when trains pass. The results of analysis on the existing condition at Kaligawe Semarang and Kaliwungu Kendal still able to accommodate vehicular traffic passing through the intersection, because based on Timetabling 2013 +72 recorded trains pass each day with a headway of trains in peak hour morning, afternoon, and evening the average is 22 minutes if the closure 3-4 minutes. For Kaligawe Road if closure (t) = 3 minutes long queue gained = 0.15 to 0.25 miles with vehicles back to normal after crossing when the door is opened (t2) = 3.913 to 5 minutes, and if t = 4 minutes queue length obtained = 0.2 to 1.66 km with t2 = 5.21 to 6.68 minutes. While on the Road Kaliwungu if t = 3 minutes obtained queue length = 0.078 to 0.366 km with t2 = 4.172 to 11.88 minutes and if t = 4 minutes obtained queue length = 0.105 to 0.5 km with t2 = 5.564 to 15.85 minutes. t2 obtained in Jalan Kaligawe and Kaliwungu still less than 22 and 25 minutes. Responding PT.KAI plan which will operate a double track to increase the frequency of trains ± 72 to ± 200 trains per day. Based on the assumption that the headway of trains is the same every hour it is 7.2 minutes, then the results of the analysis for the Kaligawe road still able to accommodate traffic in the event of the closure 3-4 minutes, but for the Kaliwungu are no longer able to accommodate traffic flow if the closing 3 and 4 minutes because t2 obtained is 11.88 and 15.85 minutes. Besides, the degree of saturation (DS) in Kaligawe road = 0.401 and Kaliwungu = 0,747, to get for good traffic performance, for Kaliwungu Road becomes necessary to change the geometric 4/2D. The results of these observations can be useful in making policy considerations relevant to the response effort DEPARTMENT PT.KAI operate the double track in 2014 in order to maximize the performance of the Road Traffic Road Kaliwungu Kendal and Kaligawe Semarang.
PERANCANGAN ULANG JEMBATAN BENGAWAN SOLO LAMA CEPU – BLORA Pebriyanto, Paizal; Permatasari, Adina; Riyanto, Bambang; Pudjianto, Bambang
JURNAL KARYA TEKNIK SIPIL Volume 5, Nomor 1, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Central Java and East Java is separated by the Bengawan Solo River. To support the activities of transportation which across Central Java and East Java, was Bengawan Solo Bridge built on the road Cepu -Padangan on Blora KM SMG 160.09. Bengawan Solo Bridge consists of two bridges, Bengawan Solo Baru Bridge and Bengawan Solo Lama Bridge. Since 1994, only Bengawan Solo Baru Bridge which operated, while Bengawan Solo Lama Bridge had no function anymore because the condition is not feasible. Along with the growth and movement patterns of traffic, it was found that in certain conditions, especially during peak hours, often seen queues of vehicles will cross the Bengawan Solo Baru Bridge. This is based on the value of Degree of Saturation (DS) Bengawan Solo Baru Bridge is 0.78 (> 0.75), which indicates the traffic condition is already unstable. Therefore, operating Bengawan Solo Lama Bridge again can be a solution to the congestion and potential overload that occurs. However, to realize that, Bengawan Solo Lama Bridge needs to be redesigned considering exsisting condition is not feasible and the age of the bridge is already very old. As the technical and aesthetic considerations, Bengawan Solo Lama Bridge is designed by considering the condition of Bengawan Solo Baru bridge so that the Bengawan Solo Lama Bridge is planned use steel structures for the upper structure and reinforced concrete structures for bottom structure. After that, Bengawan Solo Lama Bridge is designed to serve traffic from Cepu to Padangan with the type of road 2/1 UD (two-lane one-way) which has a width of 6 meters and width of sidewalks 2 x 1 meter. The planning of traffic aspects use a life design for 25 years with the traffic growth by 2,472% per year. Implementation of Construction is at a cost of 33.4 billion. The scope of the planned bridge elements in this thesis includes work for the overall structure bridge and approach bridge.
OPTIMALISASI PENGGUNAAN RUANG PARKIR PADA FAKULTAS KESEHATAN MASYARAKAT UNIVERSITAS DIPONEGORO Syamsurizal, Rina; Setiyawan, Agung Budi; Pudjianto, Bambang; Adi, Rudi Yuniarto
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Faculty of Public Health is one of faculty in Diponegoro University which is inseparable from parking problems. Due to increasing the number of students and vehicles ownership, the parking space requirements are exceed its capacity. To determinate the parking space unit (SRP) using Pedoman Teknis Penyelenggaraan Fasilitas Parkir,1996. Current parking capacities based on SRP are 242 vehicles for students motorcycles, 37 vehicles for cars, and 32 vehicles for employees and lecturers motorcycles. Parking space requirements based on the survey results and analysis are 360 vehicles for students motorcycles, 18 vehicles for cars and 36 vehicles for employees and lecturers motorcycles. To reach the parking demands, it shall need several steps of optimization. The first  step is  rearranging parking configuration based on parking space requirements according to survey results. After parking configuration setup, parking space requirements have not been fullfilled. The second step is class rescheduling. It's needed in  order to get optimal parking demands. After class rescheduled, parking space requirements for students motorcycles became 310 vehicles. To solve the problem of parking space requirements which exceed its capacity, it is necessary to restructure or change the configuration of the parking supplies in an optimal order capacity of parking spaces to serve the parking demands. Optimize the configuration of parking spaces by changing the functionality of some of  cars parking to motorcycles parking thus the parking space being adequate.
PERENCANAAN JALAN ALTERNATIF KAMPUS UNDIP TEMBALANG – SAPTA MARGA Marpaung, Tumanda Iskandi; Sushmita, Katharina Indah; Priyono, EPF.Eko; Pudjianto, Bambang
JURNAL KARYA TEKNIK SIPIL Volume 6, Nomor 2, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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UNDIP telah diakui sebagai salah satu perguruan tinggi ternama di Indonesia. Hal ini semakin mendorong UNDIP untuk selalu meningkatkan kualitasnya. Berdasarkan kondisi UNDIP saat ini, mobilisasi akses keluar masuk UNDIP Tembalang meningkat secara signifikan yang mengakibatkan kemacetan di ruas jalan Prof. Soedarto. Hal ini perlu diimbangi dengan penyediaan jalan, sehingga dilakukan perencanaan jalan alternatif menuju kampus UNDIP Tembalang melalui Jalan Sapta Marga. Perencanaan jalan alternatif ini direncanakan dengan panjang jalan 2,605 km, yaitu dimulai dari STA 0+000 di simpang Fakultas Ekonomika dan Bisnis dan berakhir di STA 2+605 di simpang Jalan Jangli Perbalan Raya. Direncanakan jalur lalu lintas 2 lajur-2 arah tak terbagi (2/2 UD), lebar lajur 3 m, bahu jalan tanpa trotoar 1-2 meter dan dengan ada trotoar 0,25 meter, saluran samping 1 m, kecepatan rencana 30 km/jam, kelandaian memanjang maksimum 10 %, jumlah lengkung horizontal 7 buah dan lengkung vertikal 15 buah. Perkerasan yang digunakan adalah perkerasan lentur meliputi lapis permukaan laston AC-WC 4 cm dan AC-BC 6 cm, lapis pondasi atas batu pecah kelas A 15 cm, lapis pondasi bawah sirtu kelas B 20 cm, nilai CBR lapangan 4,052. Terdapat lima seksi dalam perencanaan perkerasan jalan, yakni: seksi I pada STA 0+000 s.d STA 0+955 perkerasan jalan baru, seksi II pada STA 0+955 s.d 1+005 overlay pada jalan eksisting dan pelebaran badan jalan, seksi III pada STA 1+005 s.d 1+980 perkerasan jalan baru, seksi IV pada STA 1+980 s.d 2+605 overlay pada jalan eksisting dan pelebaran badan jalan, overlay lapis permukaan laston 6 cm. Proyek ini membutuhkan dana sebesar Rp 16.134.847.500,00 sudah termasuk PPN 10 %. Rencana waktu pelaksanaan kegiatan proyek ini adalah 20 (dua puluh) minggu atau 5 (lima) bulan.