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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 RACIC : Rab Construction Research Turbo : Jurnal Program Studi Teknik Mesin BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Rang Teknik Journal SIKLUS: Jurnal Teknik Sipil KACANEGARA Jurnal Pengabdian pada Masyarakat Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Adabiyyat: Jurnal Bahasa dan Sastra Jurnal Abdi Insani Journal of Mechanical Engineering Jurnal Talenta Sipil The International Conference on Education, Social Sciences and Technology (ICESST) Eduvest - Journal of Universal Studies Warta LPM Jurnal Teknik Sipil Jurnal Polimesin
Sukamta Sukamta
Departemen Teknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Social Sciences Transportation

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PERENCANAAN STRUKTUR KONDOTEL GRAND DARMO SUITE SURABAYA Lumbantobing, Elfrida Gresih; Nababan, Septesen; Atmanto, Indrastono Dwi; Sukamta, Sukamta
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1278.762 KB)

Abstract

Structure Condotel Grand Darmo Suite Surabaya planned 13 floors and is located in the region quake 2. The final task is to plan the structure of the building of reinforced concrete using System Frame bearers Special Moment (SRPMK). Building System model frame bearers Special Moment (SRPMK) using the concept of Strong Column and Weak Beam (strong column and weak beam) in accordance with SNI 03-2847-2002 and SNI-1726-2002. Planning the structure of the building using the concept of design capacity. Structure is reviewed by using the analysis of load effects equivalent static and structural analysis calculated with the help of the program SAP2000 v11. Results of the structural design Condotel Grand Darmo Suite Surabaya consisting of concrete frame with reinforcement diameter (D22, D19, D16, D13, and P10), shear wall thickness of 25 cm, the roof using a reinforced concrete slab and foundation using concrete piles precast diameter of 40 cm and 50 cm. Calculations that have been done show that all elements of the building structure is safe in the analysis.
PERENCANAAN STRUKTUR GEDUNG BERTINGKAT TINGGI BERDASARKAN SNI 03-1726-2010 Febrianto, Andru Fajar; Harimurty, Krisna; Indarto, Himawan; Sukamta, Sukamta
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Structure design of a high rise building using SNI 03-1726-2010 on this final report are designed to seismic zoning area of Semarang city using the Moment Resisting Frame System method with configuration structure collapse the Special Moment Resisting Frame System (SRPMK). The Moment Resisting Frame System method, where the system basically has the burden resisting space frame gravity and lateral loads. The Special Moment Resisting Frame System (SRPMK) election expected to be a high rise building structure behave ductile, because structure is ductile energy dissipation capacity were large and has a good carrying capacity in the resist earthquake loads. This system is planned to use the concept of strong column weak beam, where the vertical elements of the structure (column) should be stronger than the horizontal elements of the structure (beam), to be plastically formed joints first on the beam. The joints meeting of the beam-column should also be well designed to avoid collapse first. This system can be used for planning a high rise building in an earthquake zone areas that have been determined. The analysis output structure of a high rise building using SNI 03-1726-2010 applied SAP2000 v10 software to determine the fundamental period of the structure and the forces acting on the structure. In the configuration of the structure collapse the Special Moment Resisting Frame System (SRPMK) fundamental structural period must be limited so that the structure is not very flexible. Results in the forces acting on the structure is used to design the structure of  high story building.
Penentuan Sudut Kemiringan Kristis Struktur Dinding Silo Berkapasitas Penyimpanan 4650 Ton Widyanto, Susilo
ROTASI Vol 22, No 3 (2020): VOLUME 22, NOMOR 3, JULI 2020
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.22.3.%p

Abstract

Konstruksi dinding silo dirancang untuk menerima beban desak dalam arah radial. Namun akibat kondisi tertentu, orientasi konstruksi silo dapat mengalami ketidak-tegak-lurusan terhadap bidang horisontalnya. Pada kondisi seperti ini, dinding silo mengalami beban gabungan yang berupa berupa beban desak dalam arah radial dan beban gravitasi.  Paper ini membahas penentuan sudut kemiringan kritis konstruksi dinding silo yang dikaitkan dengan distribusi tegangan yang terjadi. Investigasi dilakukan dengan simulasi FEM untuk konstruksi silo dengan kapasitas penyimpanan sebesar 4650 ton, diamater 19 m dengan ketinggian 20,875 m. Hasil simulasi FEM menunjukkan bahwa pada sudut kemiringan 5o, tegangan maksimum yang terjadi sebesar 24,4 kg/mm2, dimana besar tegangan tersebut hampir mendekati tegangan yield material yaitu 25 kg/mm2. Tegangan maksimum terjadi pada daerah sambungan antara dinding dan stifner
Perilaku Antarmuka Berdasarkan Data Beda Tekanan pada Peristiwa Kondensasi Aliran Uap Dengan Pendinginan dari Luar Searah pada Pipa Horisontal Berbasis Domain Waktu Sukamta, Sukamta; Ari Dwiearto, Hasan Asy; Sudarja, Sudarja
Semesta Teknika Vol 21, No 1 (2018): MEI 2018
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.211214

Abstract

A two-phase flow pattern experiment on the condensation event of steam flow with external cooling based on the measurement of pressure difference within a horizontal pipe is carried out by varying the superficial velocity. Annulus pipes with inner pipe material made of copper and outer pipe made of galvanized iron (GIP) within an insulation of 10 mm thick were used in this experiment. The length of the pipe is 1.6 meters, outer diameter of 4 inch and inner diameter of 17 mm. The two-phase flow pattern was investigated based on differential pressure fluctuations between the inlet and outlet. To support the observation, flow pattern visualization was performed using a transparent pipe with a diameter of ¾ inch and a length of 1.3 meters connected to the test pipe section. The superficial vapor velocity was carried out from JG = 0.0689 m/s to JG = 1,9117 m/s. The results showed stratified flow patterns for the lowest superficial velocity and also obtained wavy, wavy-slug, and slug. Annular flow patterns can not be observed in this experiment. In general, increasing superficial velocity of steam will cause a significant increase in pressure fluctuations.
Pemanfaatan Limbah Kotoran Sapi untuk Produksi Batu Bata Ramah Lingkungan dan Tahan Gempa Sukamta, Sukamta; Widyasmoro, Widyasmoro; Wahyuni, Fitri; Budiyantoro, Cahyo; As’ari, Muhammad Agung; Atikasari, Tiara Cahya; Agustina, Nurhaliza; Harahap, Yudani Alamsyah
Berdikari: Jurnal Inovasi dan Penerapan Ipteks Vol 8, No 1 (2020): February
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/bdr.8172

Abstract

Cow dung waste at Srunen hamlet, Glagaharjo village, Cangkringan, Sleman is recorded to be high in quantity since it also has a high population of dairy cows. The high volume of cow dung waste leads to environment pollution, either water or air pollution. The environment pollution it causes may further trigger some problems regarding society’s health, safety and comfort. Thereby, the abundant quantity of cow dung waste needs to be well-managed and oriented for economics. One of among other technologies to manage cow dung waste which had never been implemented before is to utilize the waste as the raw material component of brick. Such brick production technology is not only environmentally friendly but is also resistant toward earthquake. This technology was introduced and implemented during the Community Service program at Glagaharjo village. The program was implemented through the methods of assessment and education, as well as feasibility test. Training and practice were conducted to adopt the technology of environmentally friendly and earthquake resistant cow dung brick. Further, the product was tested for its feasibility as construction material. The success of the program is shown from the society’s ability to produce the environmentally friendly and earthquake resistant brick which has also increased society’s income and the hamlet’s economy
Pengelolaan Limbah Ternak Sapi Menjadi Pupuk Organik Komersial di Dusun Kalipucang, Bangunjiwo, Bantul, Yogyakarta Sukamta, Sukamta; Shomad, Muhammad Abdus; Wisnujati, Andika
Berdikari: Jurnal Inovasi dan Penerapan Ipteks Vol 5, No 1 (2017): February
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/bdr.5113

Abstract

The effort to make cow dung has significant added value is the main purpose of this community service activity. The fact is still not much effort to increase the added value of cow dung such as making cow dung into organic fertilizer products with commercial value. Besides, this activity also aims to create a healthy community environment and provide an impact of economic improvement of local communities. Method of implementation of activity begins with observation and mapping area, socialization, implementation, analysis and evaluation, and improvement. The observations were conducted to review the Kalipucang Hamlet area as a whole, interviewing with all components of the community, such as village apparatus and villagers or viewing the field conditions directly as well as doing this mapping to clarify the situation and characteristics of Kalipucang Hamlet related to livestock and land, then socialized to the head of RT, Chairman of the RW, and the local village chief and community. Socialization also serves to explore more deeply about the problems experienced by the community and the solutions needed, so as to provide an output that is in accordance with the wishes and needs of the community. The location of the implementation of this program is in the cattle field of the group Andini Makmur, Kalipucang Hamlet, Bangunjiwo, Bantul, DIY. The series of activities of community service programs that will be carried out include several stages : organic fertilizer material delivery, construction of fertilizer production site, livestock collection, organic fertilizer practice, organic fertilizer monitoring, organic fertilizer cooperative system, launching and evaluation and mentoring. From this activity produced organic fertilizer and successfully established a cooperative that manages the process of making organic fertilizer, packing, until the commercialization. From this activity obtained significant added value in economic aspect as well as from the side of public health because no longer there is pollution from cow dung d neighborhood of residence. Keyword : Cow dung, organic fertilizer, community service, marketing.
Korelasi Nilai Tegangan Dan Sudut Trajektori Terhadap Rasio Dimensi Pada Balok Tinggi Adi Putra, Kukuh Cahya; Priastiwi, Yulita Arni; Sukamta, Sukamta
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 27, Nomor 1 (2021)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.944 KB) | DOI: 10.14710/mkts.v27i1.30591

Abstract

Menurut SNI 2847-2019 pengertian balok tinggi adalah komponen struktur yang dibebani satu sisi dan ditopang pada muka yang berlawanan sedemikian hingga komponen tekan sepert  strat dapat terbentuk diantara beban dan tumpuan. Dijabarkan pula rasio bentang bersih balok dibandingkan tinggi balok harus memenuhi persyaratan (l/h) < 4. Tujuan dari penelitian ini adalah mencari nilai korelasi tegangan dan sudut trajektori terhadap rasio l/h balok dengan bentang 4 meter ketika diberikan beban terpusat, P = 2000 kN. Dalam proses analisanya menggunakan software SAP v.14 untuk mencari nilai tegangan dan sudut trajektori berbagai variasi l/h.  Hasil yang didapat dari penelitian ini yaitu : (1) Rasio l/h balok tinggi mempengaruhi besarnya tegangan dan sudut trajektori, dimana semakin kecil rasio l/h balok semakin kecil pula tegangan dan semakin besar sudut trajektori yang dihasilkan, (2) Variasi lebar balok mempengaruhi besarnya tegangan tetapi tidak dengan sudut trajektorinya. Semakin bertambah lebar balok, semakin kecil tegangan tarik dan tekan maksimumnya. Semakin bertambah lebar balok ternyata tidak berpengaruh signifikan terhadap sudut trajektori yang dihasilkan.
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.
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.
Co-Authors Adi Putra, Kukuh Cahya Aditya Sage Pamungkas Agus Jamal Agus Suprihanto Agus Winarno, Agus Agusta, Rivga Agustina, Nurhaliza Aini, Afifah Nur Alfiannur, Angga Alfiannur Ami tri Fatrin Anderika Pradhita Andru Fajar Febrianto Andryan Mistavhirul P Ari Dwiearto, Hasan Asy Arif Akbarul Huda Arif Hidayat As’ari, Muhammad Agung Atikasari, Tiara Cahya Ay Lie Han Ay Lie, Han Bagus Acung Bilahi 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 Aji Wicaksono 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 Haryoko, Haryoko Heru Kristanto Himawan Indarto Holyness Nurdin Singadimedja Husda, Syamsul Muarif Ilham Abadi, Ilham Ilham Nurhuda Indarto Indarto Indrastono Dwi Atmanto Intan Fitriani Junaedi Utomo Kamiel, Berli Paripurna Khrisnawan Arief Wicaksono Kresno Wikan Sadono Krisna Harimurty Kuni Saadati, Kuni Lisatia Dian Pithaloka Listiyono Budi Liza Azizah M. Yudi Purnawan Mashuri Amin D. Mega, Windha Muhammad Fadhlurrahman Hazim Muhammad Razi Muzthohidun, Muhammad Nauval Rabbani Nazila, Kamila Shaomi Nicolaus Iyowau Noor Jakirin Nugroho, Dedy Melianto Nuroji Nuroji Nurrahman, Budi Parang Sabdono Parang Sabdono Parang Sabdono Patrick Matheus Pratama, Sadewa Eka Purnomo Purnomo Purwanto Purwanto Purwanto Purwanto R Dian Chintami R.Risang Haryo C.D. Raden Mohamad Herdian Bhakti Rini Marlina, Rini Rizki Bangun Setiawan Rudi Yuniarto Adi Rudy Suryanto, Rudy S. Wisnu B. Sanggabuana Satria K Saputra, Agel Septesen Nababan Shomad, Muhammad Abdus Sidqi Muhammad Siti Hardiyati Sri Sangkawati Sachro Sri Tudjono Sri Tudjono Subandono, Bagus Sudarja Sudarja Sudarja, Sudarja Suharyanto Suharyanto Sulistya, Krisna Suprapto 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 Widyasmoro, Widyasmoro WINDHA MEGA PRADNYA DHUHITA Windu Partono Wiyana, Satria Hadi Yulfyandika Manggala Putra Yulita Arni Priastiwi Yurianto Yurianto