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All Journal TEKNIK Rotasi MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL KARYA TEKNIK SIPIL Al-Jami'ah: Journal of Islamic Studies Semesta Teknika Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Journal of Geoscience, Engineering, Environment, and Technology Teras Jurnal Turbo : Jurnal Program Studi Teknik Mesin BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Indonesian Journal of Islamic Literature and Muslim Society Rang Teknik Journal SIKLUS: Jurnal Teknik Sipil Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Adabiyyat: Jurnal Bahasa dan Sastra Journal of Mechanical Engineering The International Conference on Education, Social Sciences and Technology (ICESST) Eduvest - Journal of Universal Studies Warta LPM Jurnal Teknik Sipil
Sukamta Sukamta
Departemen Teknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275
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Studi Literatur Tentang Program Pump System Improvement Modeling Tool Untuk Penyempurnaan Kinerja Sistem Pompa Sukamta, Sukamta; Husda, Syamsul Muarif; Caroko, Novi
Semesta Teknika Vol 20, No 1 (2017): MEI 2017
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v20i1.3307

Abstract

In the industrial world often encountered actual loads do not match the design load.  These differences lead to energy wastage. Pumping system is one of the systems that always exist in the industry. Improving of pumping system performance is an important step in saving energy. Impeller trimming is one method to improve the performance of the pump system. One of the obstacles in performing the impeller trimming method is to determine the magnitude of the impeller diameter reduction to be performed. Currently, many software developed to improve the performance of pumps and pumping systems. One of the softwares is Pump System Improvement Modeling Tool (PSIM). Imprimer trimming method is one of the features in PSIM. To be optimal in the use of PSIM in the improvement of the pump system it is necessary to conduct a literature study on PSIM to improve the performance of the pump system. In this article has been studied PSIM literature on the process of perfection of centrifugal pump system with impeller trimmer method by taking case study on hot water provider system. The method used in this literature study is by comparing the results of PSIM calculations on case studies with the pump theory of the impeller trimming method. Through this comparison will be known the advantages of PSIM and weaknesses, PSIM calculation margin error compared to the theoretical calculations. By knowing these things then it can be determined the limits of the use of PSIM in the improvement of pump system performance. The result of analysis shows that PSIM trimming impeller calculation is based more on the calculation according to affinity law than any other theory, even in the calculation there is error margin. The tendency of data is the greater the value of the reduction the greater the deviation. If based on the theory then the calculation of PSIM which can be used as a guide in calculating the reduction of diameter is a maximum reduction of 15% or 85% of the original diameter. A larger reduction of the value needs to be re-measured to the characteristics of the pump system.
The Influence of External CFRP String Reinforcement on The Behavior of Flexural RC Elements Junaedi Utomo; Nauval Rabbani; Sri Tudjono; Ay Lie Han; Sukamta
Journal of Geoscience, Engineering, Environment, and Technology Vol. 6 No. 3 (2021): JGEET Vol 06 No 03 : September (2021)
Publisher : UIR PRESS

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Abstract

External reinforcement is an excellent method for improving the load carrying capacity and ductility behaviour of reinforced concrete members in flexure. Enhancement becomes a necessity when current standards mandate a higher performance compared to older codes. External reinforcement is an environmentally friendly and sustainable solution, since demolition and re-building could be postponed, and the building can be used while work in conducted on the members. Carbon Fiber Reinforced Polymers (CFRP), having a low weight-to-volume ratio and an excellent resistance to corrosion, can be used as external reinforcement to effectively increase the flexural and shear strength of a member. To evaluate the effectiveness of CFRP strings, two types of reinforced concrete T-beams were tested. The specimens consist of a strengthened member in both shear and flexure using CFRP wraps and CFRP strings, and a conventional reinforced concrete beam. The specimens were subjected to a one-point-loading system to simulate high shear stresses in combination with a maximum bending moment at mid-point. The installation of CFRP strings was conducted using the Near Surface Mounted (NSM) method, while the sheets were Externally Bonded Reinforcement (EBR). The strings and sheets were impregnated and pultruded on side. The test results showed that the strings and wraps substantially increased the ultimate load carrying capacity and ductility of the member. The ultimate load enhancement was found to be 32% from 117kN to 154kN, and the vertical deformation improved 25% from 16 mm to 20 mm. The failure mode was characterized by initial debonding of the strings in the interface between the strings and the epoxy, followed by string-rupture. The two strings ruptured concurrently, due to stress re-distribution within the member.
STRUT AND TIE MODEL STRUKTUR BALOK TINGGI BERLUBANG Kamila Shaomi Nazila; Yulita Arni Priastiwi; Sukamta Sukamta
TERAS JURNAL Vol 11, No 1 (2021): Maret 2021
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v11i1.362

Abstract

Abstrak Mendesain suatu bangunan tingkat tinggi dengan tidak menggunakan plafon dibutuhkan perencanaan yang ekonomis tanpa mengurangi kekuatan dan keindahan dari bangunan tersebut. Balok tinggi berlubang dengan material struktur beton digunakan untuk menghindari terjadinya sistem utilitas pada suatu bangunan tingkat tinggi dengan tidak menggunakan plafon. Balok tinggi berlubang ini ditinjau menggunakan metode Strut and Tie Model (STM). Untuk mengatasi permasalahan yang ada biasanya para perencana merancang daerah D (Disturbed Region) dengan menggunakan konsep pendetailan berdasarkan aliran gaya, sehingga metode strut and tie merupakan pendekatan yang sesuai untuk menganalisis struktur beton di daerah D. Program analisa struktur digunakan untuk melakukan analisis gaya dalam berupa momen dan geser pada struktur beton balok tinggi berlubang. Hasil analisis yang diperoleh pada struktur beton balok tinggi berlubang yaitu bahwa semakin dekat lubang balok dengan tumpuan maka nilai tulangan lentur akan lebih tinggi dan semakin bertambah pula tulangan gesernya. Kata kunci: Balok Tinggi Berlubang, Daerah D, Metode Strut and Tie  Abstract Designing a high rise building without using a ceilings requires an economical plan without reducing the strength and the art of the building. The deep beam with holes, which have the structure of concrete materials is need to be used to avoid the utility system in a high rise building without ceilings. This deep beam with holes is reviewed by the Strut and Tie Model (STM) method. To solve the existing problems, planners usually design the D region (Disturbed Region) use the concept of detail based on the flow of force. So the strut and tie method is an appropriate method to analyze the structure of concrete at D region (Disturbed Region). The program of analysis structure is used to analyze the internal forces, which are Moment and Shear, in the deep beams with holes' structure. The result of the analysis in the  deep beam concrete with holes is the more position of the hole is close to its pedestal, the value of the Flexural reinforcement will be more increase, and teh Shear reinforcement will be higher too. Keywords: Deep Beam Hollow, D Region, Strut and Tie Model
METODE PELAKSANAAN DAN ANALISA BIAYA BEKISTING PADA PEKERJAAN STRUKTUR (STUDI KASUS : PEMBANGUNAN GEDUNG ASTRA HONDA MOTOR SEMARANG) Budi Rohmad Wijayanto; M. Yudi Purnawan; Sukamta Sukamta; Arif Hidayat
Jurnal Karya Teknik Sipil Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The analysis of management constructionin the implementation of development projectsneeds to be done in order to obtain an effective construction methods and cost efficient.The purpose of this study is to compare two methods of formwork on each floor plate to get a more feasible method applied is based on the time and cost of the project. Stages in conducting the study are:Calculation of the volume of work on projects that include foundation work, tie beams, columns, beams, plates, ladder, shearwall, GWT (Ground Water Tank). Cost calculation on project work, in order to get the cost for all elements of the building structure. Calculation of the power plate and beams in project work, for the purposes of dismantling formwork manually, with estimate the time of the plate and beam formwork to release. Comparison of two implementation methods of calculation of the work on the first fabrication of formwork plate method done at the beginning of the three floors, while the second method of fabrication of formwork is onlydone at the beginning of the two floors. Comparison of plate work and the work done by the time and the project costs (direct and indirect costs). Implementation of management analysis performed in order to obtain an effectiveconstruction methods and cost efficient, so the comparison of the results of both methods can be concluded that the second method is more efficient and can be applied to the implementation of the project, with the difference in cost Rp.277 288 777, - and the difference in duration of work is 5 days longer.
PERENCANAAN STRUKTUR JEMBATAN LEMAH IRENG 1 JALAN TOL SEMARANG – SOLO Dimas Prasetyo Nugroho; Sidqi Muhammad; Sri Tudjono; Sukamta Sukamta
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Lemah Ireng 1 Bridge is located at Semarang – Solo Toll Road Phase I Section Ungaran – Bawen Package V Tinalun – Lemah Ireng. This bridge was constructed due to a deep ravine at Lemah Ireng Village, so necessary this bridge as a part of the toll road. This bridge is designed using prestressed concrete box girder construction. The method of execution is used by balance cantilever with cast in place box girder. The equipment which is used in the work of box girder is traveller. The length of the bridge is 879 m, which is divided into 8 spans. The bridge with length of 879 m requires complex planning in order to obtain efficient results. This bridge has two abutments and seven piers. Design of this bridge began of planning do the pre-dimension on top of the structure. The dimensions of box girder on this bridge are different in each segment with a shape like a parabola. The next step is analyzing loads incurred, including its own weight, additional dead load, traffic load, wind load, and earthquake load. From the results of this analysis is then performed structural analysis with the program SAP2000 to output results axial force, moment, shear, and torsion. The output of it is able to calculated loss of prestressing force, needs of tendon, and reinforcement of box girder. Sub structures are planned with do the pre-dimension of pier and calculating its strength by biaxial bending Bresler method. A Result from these calculations obtained pier reinforcement ratio is 1%. The next step is calculation of abutment with the first step do pre-dimension and calculated strengths and reinforcement needs. The final stage in the planning of this bridge is foundation of abutment and pier calculations. Calculation bore pile using Broms method for calculating moments received by the bore pile. Results from these calculations obtained bore pile reinforcement ratio is 1% for the abutments and pier amounted to 1.5%.
REDESAIN STRUKTUR GEDUNG HOTEL CITIHUB MAGELANG Andryan Mistavhirul P; Triana Setianingrum; Ilham Nurhuda; Sukamta Sukamta
Jurnal Karya Teknik Sipil Volume 7, Nomor 2, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Desain struktur Hotel Citihub Magelang merupakan hasil perencanaan yang masih mengacu pada standar lama, antara lain SNI 03-2847-2002 dan SNI 1726-2002. Hal ini menjadi dasar dilakukannya redesain struktur gedung dengan mengacu pada standar-standar terbaru yaitu SNI 2847:2013 tentang persyaratan beton struktural untuk bangunan gedung dan SNI 1726:2012 tentang tata cara perencanaan ketahanan gempa untuk struktur bangunan gedung, menggunakan dimensi balok dan kolom struktur yang sama dengan desain sebelumnya. Redesain struktur dengan menerapkan konfigurasi Sistem Rangka Pemikul Momen Khusus (SRPMK) bertujuan agar nantinya struktur memiliki tingkat daktilitas yang mampu menahan beban gempa rencana. Analisis struktur menggunakan program SAP2000 untuk mendapatkan gaya-gaya dalam yang bekerja pada struktur berdasarkan kombinasi pembebanan yang digunakan. Hasil dari redesain menunjukkan bahwa dengan menggunakan dimensi balok dan kolom struktur yang sama dengan desain sebelumnya, redesain struktur Hotel Citihub Magelang mempunyai perbedaan penulangan balok dan kolom yang bervariasi. 
EVALUASI STRUKTUR ATAS BOGOR VALLEY APARTEMEN DAN HOTEL Anderika Pradhita; Fajar Wahyu Putranto; Sukamta Sukamta; Hardi Wibowo
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Bogor Valley Apartment and Hotel was built in November 2012.This high rise building consists of 2 towers of apartment and 1 tower of hotel. The apartment reaches 63,7m high with 22 stories and 2 semi basements and the hotel has 10 stories with no semi basement.This upperstructure evaluation of Bogor Valley Apartment and Hotel is based on Indonesian Seismic Code (SNI 03 – 1726 – 2012). Structure is modeled as similar as possible to existing structure. Structural element represents detail section in As Built Drawing. Loading structure in the form of dead load, live load, and seismic load. This structure has irregular shape and high enough stories so therefore using dynamic seismic load analysis is more suitable. Upper structure analysis is using SAP2000v14. As the result of calculations showed that structural element of Bogor Valley Apartment and Hotel building needs to be reviewed deeper because there are some elements that cant pass the requirements based on analyze of Indonesian Concrete Code (SNI 03 – 2847 – 2002).
PERENCANAAN STRUKTUR GEDUNG APARTMENT 14 LANTAI Yulfyandika Manggala Putra; Ami tri Fatrin; Hardi wibowo; Sukamta sukamta
Jurnal Karya Teknik Sipil Volume 7, Nomor 4, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRAK Sempitnya lahan yang tersedia di Kota Bandung mengakibatkan pembangunan ke arah vertikal menjadi lebih efisien. Pembangunan gedung tinggi sendiri memiliki resiko gempa yang besar. Hal tersebut melatar belakangi Tugas Akhir ini yang berjudul "Perencanaan Struktur Gedung Apartment 14 Lantai". Gedung yang tinggi harus didesain tahan terhadap gempa dengan menggunakan konfigurasi struktur Sistem Rangka Pemikul Momen Khusus (SRPMK) sesuai dengan SNI 03 – 1726 - 2012, sehingga direncanakan elemen lentur dengan mutu bahan yang tinggi yaitu fc' 45 MPa dan fy 400 MPa, serta dimensi yang sudah memenuhi syarat. Tahapan perhitungan gedung sendiri mencakup perencanaan beban-beban yang bekerja pada struktur, perencanaan struktur atas gedung yang meliputi pelat, balok, kolom, tangga dan shearwall, serta perencanaan struktur bawah yaitu pondasi. Hasil dari perencanaan gedung apartment ini adalah struktur yang kuat dan aman terhadap gempa serta gaya-gaya dalam (momen lentur, gaya lintang, gaya normal, dan torsi) yang terjadi pada elemen-elemen struktur.
REDESAIN GEDUNG KANTOR JASA RAHARJA CABANG JAWA TENGAH JALAN SULTAN AGUNG - SEMARANG Muhammad Razi; Syaiful Anshari; Windu Partono; Sukamta Sukamta
Jurnal Karya Teknik Sipil volume 1, Nomer 1, tahun 2012
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRAK Perkembangan bangunan bertingkat tinggi di Indonesia saat ini telah menggunakan konsep struktur rangka kaku murni yang terdiri dari komponen utama struktur yakni balok dan kolom yang saling terhubung (terikat). Desain struktur gedung kantor Jasa Raharja menggunakan konsep Sistem Rangka Pemikul Momen Khusus (SRPMK), pemilihan konsep SRPMK dimaksudkan agar tidak akan terjadi kegagalan struktur pada saat gempa terjadi. Analisa struktur menggunakan program komputer SAP2000 untuk mendapatkan nilai dan arah gaya dalam yang digunakan dalam mendesain struktur tersebut. Standart ketentuan peraturan yang berlaku adalah “SK SNI 03-2847-2002”. Hasil analisis menunjukan bahwa struktur gedung kantor Jasa Raharja aman dan mampu dipertanggungjawabkan secara analisis. Kata kunci: Balok, kolom, dan SRPMK ABSTRACT The development of high-rise building in Indonesian are currently using the concept of pure rigid frame structure consisting of a main component of the structural beam and column are connected (bound). Jasa Raharja’s office building structure design by using the concept of Special Moment Frame System (SMFS). Selection of SMFS concept intended to prevent structural failure would happen when an earthquake occurs. Frame structure analysis used SAP 2000 computer software to obtain the value and direction of the force that is used to design structure. Standard terms applicable regulation is "SK SNI03-2847-2002". The results of the analysis showed that the structure of Jasa Raharja’s office building is safe and able to be accounted by analysis. Keyword: Beam, column, and SMFS
PERENCANAAN STRUKTUR GEDUNG HEAD OFFICE PERTAMINA RU (REFINERY UNIT) IV CILACAP DENGAN STRUKTUR KOMPOSIT BAJA-BETON Sanggabuana Satria K; Tunggal Bagas Yuliawan; Sukamta Sukamta; Parang Sabdono
Jurnal Karya Teknik Sipil Volume 7, Nomor 2, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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ABSTRAKGedung Head Office Pertamina RU IV Cilacap adalah bangunan yang difungsikan sebagai gedung perkantoran dan pusat kegiatan administratif milik PT. Pertamina (Persero) yang terdiri dari 5 (lima) lantai. Struktur bangunan pada awalnya menggunakan material struktur beton bertulang, namun pada penulisan jurnal ini komponen struktur dirubah menggunakan struktur yang tersusun secara komposit terdiri dari penampang beton dan profil baja. Gedung dimodelkan menggunakan analisis program SAP2000 untuk mendapatkan gaya dalam yang terjadi pada struktur gedung. Perhitungan mempertimbangkan kemampuan baik penampang beton maupun profil baja dalam menahan beban yang terjadi. Metode perhitungan telah disesuaikan dengan SNI 1729:2015, didapatkan hasil berupa dimensi elemen struktur komposit kolom yang mampu menahan pembebanan yang terjadi pada bangunan.
Co-Authors Adi Putra, Kukuh Cahya Aditya Sage Pamungkas Agus Jamal Agus Suprihanto Agus Winarno, Agus Agustina, Nurhaliza Aliputa, Henu Satya Ami tri Fatrin Anderika Pradhita Andru Fajar Febrianto Andryan Mistavhirul P Angga Alfiannur Alfiannur Ari Dwiearto, Hasan Asy Arif Hidayat As’ari, Muhammad Agung Asshidiqie, Muhammad Rony Atikasari, Tiara Cahya Ay Lie Han Ay Lie, Han Bagus Acung Bilahi Baharudin, Irfan Bobby Rio Indriyantho Budi Rohmad Wijayanto Budiyantoro, Cahyo Caroko, Novi Darwin Hartono Dedet Hermawan Setiabudi, Dedet Hermawan Dianugrah, Rizki Dimas Prasetyo Nugroho Doni Apriadi Putera Dwi Aries Himawanto Elfrida Gresih Lumbantobing Erista, Dicky Fajar Wahyu Putranto Ferry Hermawan Fitri Wahyuni Galih Widyarini Gunawan Budiyanto Han Ay Lie Han Ay Lie Harahap, Yudani Alamsyah Hardi Wibowo Hardi Wibowo Hari Nugroho Hazim, Muhammad Fadhlurrahman Himawan Indarto Holyness Nurdin Singadimedja Husda, Syamsul Muarif Ilham Abadi, Ilham Ilham Nurhuda Inabah, Redha Fatki Indarto Indarto Indrastono Dwi Atmanto Intan Fitriani Junaedi Utomo Kamiel, Berli Paripurna Kamila Shaomi Nazila Khrisnawan Arief Wicaksono Kresno Wikan Sadono Krisna Harimurty Kuni Saadati Lisatia Dian Pithaloka Listiyono Budi Liza Azizah M. Yudi Purnawan Maemunah Mashuri Amin D. Muhammad Razi Muzthohidun, Muhammad Nasmiarta, Zhafarina Malaha Nauval Rabbani Nicolaus Iyowau Nugroho, Dedy Melianto Nuroji Nuroji Nurrahman, Budi Parang Sabdono Parang Sabdono Parang Sabdono Patrick Matheus Permana, Agung Pratama, Sadewa Eka Purnomo Purnomo Purwanto Purwanto Purwanto Purwanto R Dian Chintami R.Risang Haryo C.D. Rini Marlina, Rini Rudi Yuniarto Adi Rudy Suryanto, Rudy S. Wisnu B. Sanggabuana Satria K Septesen Nababan Shomad, Muhammad Abdus Sidqi Muhammad Siti Hardiyati Sri Sangkawati Sachro Sri Tudjono Sri Tudjono Subandono, Bagus Sudarja Sudarja Sudarja, Sudarja Suharyanto Sulistya, Krisna Suprapto Suprapto Suryanto, Arwan Susilo Adi Widyanto Syaiful Anshari Thoharudin, Thoharudin Tri Agung Rohmat Tri Agung Rokhmat, Tri Agung Triana Setianingrum Tunggal Bagas Yuliawan Utama, Nafi Ananda Utomo, Jati Wicaksono, Dwi Aji Widyasmoro, Widyasmoro Windu Partono Yudo Prasetyo Yulfyandika Manggala Putra Yulita Arni Priastiwi Yurianto Yurianto