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INDONESIA
JURNAL KARYA TEKNIK SIPIL
Published by Universitas Diponegoro
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Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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Articles 592 Documents
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ANALISIS KINERJA DAN PENINGKATAN FUNGSI BENDUNG GUNTUR KABUPATEN DEMAK JAWA TENGAH Aisha Cahya Wulansari; yohanes gylberd paringhan; Hari Nugroho; Sriyana Sriyana
Jurnal Karya Teknik Sipil Volume 7, Nomor 2, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Bendung Guntur terletak di Sungai Wonokerto Kabupaten Demak Provinsi Jawa Tengah. Bendung ini berfungsi untuk penyedia air irigasi. Sejak sekitar tahun 2004, kondisi bendung mengalami penurunan dan tidak lagi berfungsi optimal disebabkan oleh tingginya sedimentasi yang berasal dari Sungai Jragung. Hal tersebut diperparah dengan tidak adanya kantong lumpur di sisi kanan dan kiri bendung sehingga makin memperparah kondisinya.Untuk mengembalikan fungsi Bendung Guntur dilakukan penilaian kinerjanya. Penilaian kinerja bendung dilakukan mengacu pada Peraturan Menteri No. 32 tahun 2007. Dari hasil penilaian kinerja bendung tersebut diharapkan dapat dilakukan perbaikan pada parameter yang nilainya masih kurang. Penilaian kinerja dilakukan dengan pengamatan kondisi bendung secara langsung dan menggunakan kuesioner yang dibagikan kepada pihak pengelola bendung, petani pemakai air dan stakeholder yang lain.Dari hasil penilaian diketahui bahwa kinerja Bendung Guntur didapat skor 69,05%  masuk dalam kategori kondisi 3 dimana kinerja : kurang dan perlu perhatian. Parameter yang kurang adalah prasarana fisik bendung yaitu tidak adanya kantong lumpur sebagai pengendali sedimentasi. Untuk meningkatkan kinerja perlu dibuat kantong lumpur, tetapi karena keterbatasan lahan yang ada tidak memungkinkan pembuatan kantong lumpur. Sebagai pengganti dibuat chekdam untuk menahan sedimentasi masuk ke bendung. Cekdam diletakkan 250 m dihulu bendung dengan data: tinggi efektif maindam 2 m, kedalaman pondasi 2,5 m, lebar mercu pelimpah 2,15 m dengan debit rencana periode ulang 50 tahun sebesar 471,211 m3/dt. Disamping itu dilakukan normalisasi untuk mengangkat sedimen di bendung. Normalisasi sungai dilakukan sepanjang 1 km dari bendung ke arah hulu. 
APLIKASI METHOD PRODUCTIVITY DELAY MODELPADA ANALISA PENGARUH WASTEPEKERJA TERHADAP INDEKS KOEFISIEN PRODUKTIVITAS Pamungkas, Gita Silvia; Sayekti, Hananti Nur; Agung, Mochamad; Kistiani, Frida
Jurnal Karya Teknik Sipil Volume 6, Nomor 2, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Permasalahan yang sering terjadi pada proyek konstruksi berkaitan dengan human resources, dimana berperan penting sebagai pelaku pembangunan proyek konstruksi. Industri konstruksi juga menghadapi masalah waste. Jenis waste yang diamati adalah waste pekerja. Maka dilakukan penelitian dengan tujuan menganalisa prosentase waste pekerja, menganalisa indeks koefisien produktivitas pekerja, dan dampaknya terhadap Rencana Anggaran Biaya. Pekerjaan yang diamati adalah pekerjaan kolom meliputi pembesian, bekisting, dan pengecoran. Penelitian dimulai dengan pengumpulan data primer menggunakan metode wawancara untuk mendapatkan profil pekerja, dan observasi untuk mendapatkan data production cycle time, durasi delay (material, teknis, perilaku). Data primer tersebut dianalisa dengan menggunakan method productivity delay model untuk mendapatkan produktivitas, kemudian nilai produktivitas dikalikan dengan volume pekerjaan. Dengan menggunakan rumus untuk menghitung indeks koefisien produktivitas, didapatkan masing-masing nilai indeks koefisien produktivitas. Dari hasil analisa didapatkan prosentase waste pekerja pembesian sebesar 2,357%, bekisting sebesar 2,269%, pengecoran sebesar 1,332%. Sementara hasil perhitungan indeks koefisien produktivitas didapatkan untuk pembesian (pekerja=0,047, tukang besi = 0,021, mandor =0,05), bekisting (pekerja =0,063, kepala tukang= 0,008, mandor =0,008), pengecoran (pekerja = 0,55, kepala tukang = 0,09, mandor = 0,09). Beberapa faktor yang mempengaruhi produktivitas adalah pengalaman kerja, pengawasan, layout proyek, dan training / sertifikasi yang pernah diikuti oleh pekerja. 
EVALUASI DAN UPAYA PENINGKATAN KINERJA BUNDARAN KALIBANTENG PASCA TERBANGUNNYA FLYOVER Agustina Maya Paramitha; Radiksa Ivan Sitranata; Bambang Riyanto; YI. Wicaksono
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The high vehicle passes on Kalibanteng Intersection as one of main road to reach West Semarang area decreasing the traffic performance. One of the strategies to improve the performance is by building a flyover and widening aprroach. The results of the degree of saturation analysis before flyover was build reaches 1,08 on Sudirman Street, 0,92 on Pamularsih Street, 0,71 on Abdulrahman Saleh Street, 0,93 on Siliwangi Street, 1,08 on Bandara Ahmad Yani Street and 0,52 on RE. Martadinata Street. Widening aprroach done by add 2 meters on Siliwangi Street and 4 meters on Sudirman Street. Beside that, also displacing access to Ahmad Yani Airport into Maerokoco. Based on the analysis with widening the aprroach and displacing airport access, road performance is improved, shown by the degree of saturation on Siliwangi Street is less than 0,79, on RE. Martadinata Street less than 0,18, on Sudirman Street less than 0,41, Pamularsih Street less than 0,83 and Abdulrahman Saleh Street less than 0,65. It was concluded that widening the aprroach and displacing airport access produce a better performance than before there is no flyover.
PERANCANGAN CHECK DAM PRAMUKA UNTUK MENGATASI SEDIMENTASI DI BANJIR KANAL BARAT KOTA SEMARANG Susilowati Susilowati; Langlang Adi Pratama; Dwi Kurniani; Suseno Darsono
Jurnal Karya Teknik Sipil Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

West Flood Canal is one of the flood control infrastructure that was built to address the flooding problems in the city of Semarang. These functions must be kept in accordance with its function . Rehabilitation of the West Flood Canal has been done to increase the flow of flood carrying capacity is reduced due to sedimentation. This sedimentation caused by erosion upstream watershed Garang . Sediment Pengendalu banguna check dam should be built in the upper reaches of the river to control the tilt base. The purpose of this study is to design a sediment control structures in order to reduce sedimentation in the river downstream of the cause sedimentation, reducing the capacity of the West Flood Canal and causing flood water could not be contained anymore, causing flooding. As well as the presence of the check dam is expected to address the scouts scour at the bridge, so that the pillars of the bridge can be protected. Hydrology analysis to calculate the flood discharge using a HEC - HMS software with synthetic unit hydrograph of the SCS (Soil Conservation Service) in a 100 -year return period. 100 -year flood discharge in the location of 386.9 m3/second. Analysis of erosion using the USLE (Universal Soil Losses Equation) obtained the value erosion of 1.85 mm/yr ( 32.01 tonnes/ha/yr). From the analysis of erosion sedimentation values obtained with the formula of suripin (2004) amounted to 2,677 t/h/yr. Location check dam to be built at the downstream bridge Scout, Pudak Umbrella, Semarang. With the results obtained hydrological analysis was conducted with the physical planning of check dams as follows : lighthouse spillway crest elevation of +283.65 checkerboard with an effective height of 4 m and a depth of 2.2 m elevation foundation +277.45, the width of the main spillway mercu obtained dam 50 m wide, with discharge (Q) plans a return period of 100 years at 386.094 m3/dtk, high wing checkerboard of 3.45 m with a height of 0.8 m surveillance , checkerboard construction is masonry times , peak elevation +281.65 dam spillway sub summit with summit height of 2 m and a depth of 1.5 m foundation , sub- high-wing dams with a height of 2.9 m by 0.8 m surveillance, construction of a masonry dam sub times, with thickness of 1 m, the construction of a masonry protection floor is empty. Purpose of this is the construction of check dams to reduce the slope of the river so that the water velocity can be decreased and the river bed material transport capacity can be reduced, consequently the rate of sedimentation in the West Flood Canal can be reduced, thereby reducing the cost of routine dredging of sediment is reduced.
PENINGKATAN FUNGSI BENDUNG PLUMBON-SEMARANG SEBAGAI PENGENDALI BANJIR Danang Dwi Admojo; M. Kurnia Hermawan; Salamun Salamun; Dwi Kurniani
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flood happened recently is already a thing happened each time in various regions in Indonesia, not least in Semarang, especially in the area Mangkang. Improved function of the weir Plumbon previously only built for irrigation becomes a flood control dam is expected to reduce or cope with floods that occur each year in these areas. Plumbon river has a total length of 14.123 km with the average slope of the river (i) 0.0165. Plumbon watershed has an area of 20.36 km2. Planning weir Plumbon increased functionality using rainfall data of the last 12 years (2002 - 2014) with 3 stations namely rain Middle Reef (33F), Mangkang Reservoir (41C), Kaligading (20). Calculation of flood discharge plan obtained with a return period of 20 years (Q20) of 365.015 m³ / s with HSS method Gama I. Enhanced functions for flood control is done by raising the dam height lighthouse, so the catchment area will increase and may decrease the discharge passing through the dam , Plumbon weir using high lighthouse beacon round with 8 m wide and 17 m effective. Plumbon weir is planned to advance along the floor of 9.0 m and use a pool megrim with length of 16.5 m with a thickness of 2.5 m pool floor megrim selected while the pool is the type USBR type III.
STUDI EKSPERIMENTAL PENGARUH PENAMBAHAN RESIN PADA AGREGAT KASAR TERHADAP KEKUATAN BETON Bunga Sri Puspitasari; Muh. Alwi Umar; Sri Tudjono; Ilham Nurhuda
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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It is well known that compressive strength of concrete is affected by the strength of the constituent materials and the strength of interfacial transition zone (ITZ). This research aimed at investigating the influence of the addition of resin on coarse aggregates on the strength of concrete. The resin investigated in this research was unsaturated polyester resin. The resin was combined with methanol with different composition of 1:0; 1:0.25; 1:0.5; and 1:1. The tests conducted in this investigation were pull off test, shear test and compression test. Test results show that all specimens with resin exhibit lower strength values compared to specimens with no resin. The compressive strength of concrete silinders with resin coated aggregates were obtained to be 16.26 MPa and 3.14 MPa, while the compressive strength of normal concrete ( with no resin) was 29.99 MPa.
ANALISIS DAN OPTIMASI SIMPANG BERSINYAL SEMI KOORDINASI DENGAN MENGGUNAKAN SYNCHRO 7.0 Aan Setiawan; Chesty Asriningtyas; Ismiyati Ismiyati; Kami Hari Basuki
Jurnal Karya Teknik Sipil Volume 3, Nomor 2, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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The change of used areas in Siliwangi road, from settlement to be the centre of business – service, industrials and office, will appear traffic movement in Krapyak and Tol Krapyak – Jatingaleh intersection. Moreover there will be some problem on traffic phenomena as traffic jam, time of delay, air pollution that increase, accident and other traffic problem that will cause lose time, fuel use, and cost. This study aims to analyzed the performance of Krapyak intersection and Tol Krapyak – Jatingaleh intersection, it should be changed the traffic management and geometric research to minimized the traffic jam and air pollution on both intersection. The pattern of the movement of the road beside both intersection can be obtained by using origin – destination matrix (ODM). The advantage of this method in which the vehicle volume and the value of obstacle in each intersection, the pattern traffic movement can be gained. Of course it will minimized the cost, time, human resources. The performance of the intersection will be measure and analyzed using Synchro 7.0 from America. The advantage of this program is able to stimulate planning yield and easy to operate as well. The alternated solution from this study is to broaden road lines of 3,5 meter on each intersection and the alternated road for vehicle to public transportation in the value of 40%. The result of this analyzed in existing condition is measured by DS value on Krapyak intersection 1,29; emission of CO 2089 gram and in Tol Krapyak – Jatingaleh is of 1,41; emission CO 1903 gram. The broaden of road line (3,5 meter) the value DS Krapyak intersection 0,73 (decrease 43,3%); emission CO 2293 gram (increase 8,89%) in Tol Krapyak – Jatingaleh intersection the value DS 0,74 (decrease 47,5%); emission CO 1899 gram (decrease 0,21%). The assumption of the change of private to public transportation of 40% the value DS in Krapyak intersection 0,71% (decrease 44,9%); emission CO 1353 gram (decrease 35,2%) in Tol Krapyak – Jatingaleh intersection the value DS 0,62% (decrease 56%); emission CO 1120 gram (decrease 41,1%). The result of analysis can be concluded, assumption transfer of private car to public transportation equal to 40% is solution able to be optimal of performance service of intersection. Where result of DS equal to 0,71 and 0,62 which have fulfilled conditions of intersection performance ≤ 0,75, and also emission of CO 1,353 ppm and 1,120 ppm have fulfilled conditions of value float pollution boundary that is, ranging from 0 - 50 ppm where, entering in good category (there no effect to environment and health). Hence can be recommended, for related government utilize to repair the pre requirement and suitable requirement public transportations, and improve security, service of consumer of public transportation. In research hereinafter, enabled to use ODM method and program of Synchro 7.0.
PENGARUH KETEBALAN TERHADAP KEKUATAN PANEL KACA Fridha Nurrahma; Muryanti Muryanti; Ilham Nurhuda; Han Ay Lie
Jurnal Karya Teknik Sipil Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

This research aimed at investigating the effect of glass thickness on the strength of annealed glass panels. The research was conducted using both experimental tests and numerical simulations. The experimental tests were conducted using the double ring method, while the numerical simulations were carried out using Finite Element Method (FEM). Numerical simulations were conducted first to determine efficient meshing, dimension of the specimen, and the equipment capacity. The number of specimens were 400 with the same width and length of 200 mm x 200 mm. The thickness of which were varied from 3 mm up to 10 mm. The test results were maximum load and fracture origin. Both of these results were used to calculate the strength of the glass that was expressed as failure stress at the location of fracture origin. The failure stress scattered in a wide range, hence statistical analysis was required to analyze the glass strength. From the analysis, it can be seen that the strength of glass was affected by its thickness. Some graphs have been created to show the allowable pressure that can be resisted by certain dimension of glass panels.
PERENCANAAN SABO DAM KALI PUTIH (KM 16,7) KABUPATEN MAGELANG JAWA TENGAH Nanda Anjariwibowo; Dwi Indra Setyawan; Salamun Salamun; Hary Budieny
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Mount Merapi (2980) meters above sea level), one of the most active volcanoes in the world, located in Central Java Province. Mt. Merapi last erupted in 2012, producing a large number of volcanic materials which has highly destructive force. This flow happened on almost all of the rivers in Mt. Merapi hillside, such as Kali Putih for example. Kali Putih has a big potential of damage because of its location, near rural areas. Reffering to the above mentioned, the preventive effort of disasterous effect need to be done to decrease the damages by using Sabo Dam. The data we need to design it are hydrological data such as annual daily rainfalls data and Kali Putih catchment area map, soil investigation data, a topographic map and geometric river map. Those data will be processed and used as the basis for designing the Main Sabo Dam, Sub Sabo Dam, Apron and etc. The results of Sabo Dam design are: total height of Main Dam is 8,55 meters, total height of Sub Sabo Dam is 2,79  meters, length of Apron is 6,1 meters, sediment storage capacity is 8.100 m3, the total cost is Rp.1.470.615.000,00 (including VAT) and the construction phase is 14 weeks. The construction of Sabo Dam will be more optimal if it is accompanied by a good maintenance system done by the related agencies, so that the percentage of the damaged covering areas will decrease significantly.
PERENCANAAN STRUKTUR GEDUNG MARITIME EDUCATION AND TRAINING BP3IP JAKARTA Karang Fakta Setiawan; Mufti Arif Budi Yudianto; Himawan Indarto; Bambang Pardoyo
Jurnal Karya Teknik Sipil volume 1, Nomer 1, tahun 2012
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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ABSTRAK Perencanaan Struktur Gedung Maritime Education and training Improvement BP3IP Jakarta yang terdiri dari enam lantai terletak di zona gempa 3 (sedang) didesain menggunakan sistem Struktur Rangka Pemikul Momen Menengah (SRPMM) dengan mengacu pada ketentuan SNI 03-1726-2002 dan SNI 03-2847-2001. Berdasarkan SNI beton yang berlaku (SNI 03-2847-2002) struktur beton bertulang tahan gempa direncanakan dengan mengaplikasikan konsep desain kapaitas (capacity design). Penerapan dari konsep desain kapasitas ini untuk bangunan yang menerima gempa adalah konsep “strong columb weak beam”. Dalam desain , analisis dan sitem struktur perlu diperhitungkan terhadap kemungkinan terjadinya kombinasi pembebanan (load combination) dan beberapa kasus beban yang dapat bekerja secara bersamaan selama umur rencana menurut Peraturan Pembebanan Untuk Rumah dan gedung 1989. Jenis tanah dasar pada Gedung Maritime Education and training Improvement BP3IP Jakarta berdasarkan nilai Test Penetrasi Standar N termasuk dalam tanah sedang. Dalam analisis struktur terhadap gaya gempa menggunakan metode analisis dinamis yaitu menggunakan Analisis Ragam Spektrum Respon (Spectrum Modal Analysis) dimana respon maksimum dan tiap ragam getar struktur yang terjadi didapat dari Spektrum Respon Rencana (Design Spectra). Analisa struktur pada perencanaan struktur gedung ini dilakukan dengan menggunakan program SAP 2000 V.14 yang merupakan salah satu program analisis struktur yang telah luas dalam dunia teknik sipil. ABSTRACT Structural Design of Maritime Education and Training Improvement BP3IP Jakarta consists of six floors is located in seismic zone 3 (medium) frame structure is designed using a system of bearer Moment Medium (SRPMM) with reference to the provisions of SNI 03-1726-2002 and SNI 03-2847 - of 2001. Based on the prevailing concrete SNI (SNI 03-2847-2002) earthquake-resistant reinforced concrete structures are planned by applying the concept kapaitas design (design capacity). Implementation of this design concept for building the capacity of the receiving earthquake is the concept of "strong Columb weak beam". In the design, analysis and structure need to be taken into account Sitem to the possibility of a combination of loading (load combination) and some load cases that can work simultaneously over the life of the plan according Regulation Charging For Home and building 1989. The soil types on the basis of Maritime Education and Training Building Improvement BP3IP Jakarta based on Standard Penetration Test N values ​​in soils are included. In the structural analysis of earthquake forces using the method of dynamic analysis using Response Spectrum Analysis of Variety (Capital Spectrum Analysis) where the maximum response, and every variety of vibrating structures that occur from the spectra obtained Response Plan (Design Spectra). Analysis on the structural design of building structures is performed using the program SAP 2000 V.14, which is one program which has extensive structural analysis in civil engineering world.

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