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INDONESIA
Inersia : Jurnal Teknik Sipil dan Arsitektur
ISSN : 0216762X     EISSN : 2528388X     DOI : -
Core Subject : Engineering,
INERSIA is stand for INformasi dan Ekspose hasil Riset Teknik SIpil dan Arsitektur. This scientific journal is managed by the Department of Civil Engineering and Planning Education, Faculty of Engineering, Yogyakarta State University, in cooperation with the Persatuan Insinyur Indonesia (PII). It publishes and disseminates research results from lecturers and post graduate students from various universities in Indonesia, which has contributed to the development of science and technology, especially in the field of Civil Engineering and Architecture. INERSIA is published twice a year, in May and December.
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Articles 312 Documents
IDENTIFIKASI KEGAGALAN PELAKSANAAN CRASH PROGRAM DALAM PROYEK KONTRUKSI Setiono Eko Bawono
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 13, No 1 (2017): Mei
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v13i1.14598

Abstract

ABSTRACTCrash program becomes an alternative solution for the implementation of construction projects that are faced with limit time. In practice, the crash program is not easy to implement considering the two main requirements must be fulfilled: 1) the number of available resources is not an obstacle and 2) if the desired time of completion is completed faster with the same scope, then the resource requirements will increase. This study aims to identify the factors that cause failure of crash program implementation in construction project. Quantitative and qualitative approaches are carried out simultaneously in analyzing secondary data and primary data. Weekly progress achievement as secondary data and primary data such as respondent (owner, head of construction management, project manager, and site manager) interview reports. The result of the analysis shows that the failure of crash program implementation is caused by three main factors: 1) materials unavailability, 2) inadequate human resources and 3) lack of achievement of specification.Keywords: crash program, construction projectABSTRAKCrash program menjadi alternatif solusi bagi pelaksanaan proyek konstruksi yang dihadapkan pada waktu pelaksanaan yang sangat sempit. Dalam pelaksanaannya, crash program  tidak mudah dilaksanakan mengingat dua persyaratan utama harus terpenuhi yaitu:1) jumlah sumber daya yang tersedia tidak merupakan kendala dan 2) bila diinginkan waktu penyelesaian kegiatan lebih cepat dengan lingkup yang sama, maka keperluan sumber daya akan bertambah. Penelitian ini bertujuan mengidentifikasi faktor-faktor penyebab kegagalan pelaksnaan crash program dalam proyek konstruksi. Pendekatan kuantitatif dan kualitatif dilakukan secara bersamaan dalam menganalisa data sekunder dan data primera. Data sekunder berupa capaian progress mingguan dan data primer berupa interview responden (Owner, pimpinan manajemen konstruksi, project manager, dan site manager). Hasil analisa menunjukkan bahwa kegagalan pelaksanaan crash program  disebabkan oleh tiga faktor utama yaitu: 1) ketidaktersediaan material, 2) SDM yang tidak memadai dan 3) kurangnya pencapaian spesifikasi.Kata kunci: crash program, proyek konstruksi
STUDI PENGEMBANGAN PEMANFAATANEMBUNG KALIAJI SEBAGAI SUPLAI AIR PDAM SLEMAN Anis Mulyati Cholifah, Ratna Septi Hendrasari
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 10, No 1 (2014): Mei
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v10i1.4425

Abstract

Water needs will be getting increases along with increasing population and the needs of human life. An effort to solve the problem is to accommodate water in embung. Embung Kaliaji is located in the hamlet sangurejo administration, wonokerto village, turi , sleman. Embung Kaliaji used the citizens to aquaculture, irrigation rice fields, and plantation. The development of the use of the potential of water resources that one of them are as a source of raw PDAM water. Kaliaji embung water will be utilized to increase the supply of PDAM water on sleman so it can meet the needs of the PDAM on water. In this research is analyzing the availability of water at embung Kaliaji by means of change rain to discharge use the mock model. An analysis of the needs of water based on the water needs of the rice plant , vegetables , and salak. The development of the utilization of feasibility analysis embung Kaliaji to PDAM sleman is conducted by seeing water balance who described the conditions the availability of water and high demand for water. Based on the analysis , that the availability of water obtained more experienced a period of surplus with the average 81,39 liter/second. The availability of water is highest occurred in february with the middle of the second month of 142,72 liters per second , while the availability of the water lowest is in january the middle of the first month of 9,18 liters per second. The water needs for irrigation highest occurring at the beginning to the middle of july first worth 11,65 liters per second, with the type of vegetable crops and salak the needs of water while the lowest is in the third week until the end of december worth 0.2 liters per second, with the type of rice plants. Based on the water analysis balance , by comparing the availability of water and demand of water , be seen that the development of the use of technical embung Kaliaji to the supply of PDAM water on sleman worthy of developed , by the limitation of the collection in february mid- up to december amounting to 10 liters per second , in january up to february middle ages of 1-5 liters per second.Key words: Kaliaji, PDAM sleman, water
PERBANDINGAN PERILAKU BANGUNAN BERTINGKAT MENENGAH DENGAN MATERIAL CROSS-LAMINATED TIMBER (CLT) BERDASARKAN SNI 1726:2012 DAN SNI 1726:2019 Ika Rahmawati Suyanto
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36899

Abstract

ABSTRAK Pembangunan yang berkelanjutan dengan konsep bangunan hijau membuat cross-laminated timber (CLT) saat ini menjadi alternatif yang dipertimbangkan dalam pembangunan di area urban. Berbeda dari glulam, lapisan-lapisan kayu pada CLT saling tegak lurus sehingga memberikan tahanan geser yang lebih besar pada dua arah transversalnya. Sementara itu, peraturan bangunan tahan gempa di Indonesia mengami perubahan dari SNI 1726:2012 menuju SNI 1726:2019 dengan perubahan nilai parameter respon spektra yang cukup berbeda. Konsekuensi akibat perubahan peraturan ini dianalisa terhadap perubahan perilaku struktur CLT. Dari hasil analisa didapatkan bahwa gaya lateral diafragma dan simpangan terbesar berdasarkan SNI 1726:2012 adalah sebesar 1433 kN dan 42 mm. Sedangkan gaya geser dan simpangan terbesar berdasarkan SNI 1726:2019 adalah sebesar 842 kN dan 24,5 mm. Dari hasil tersebut dapat dikatakan bahwa CLT masih efektif digunakan sebagai material untuk bangunan bertingkat menengah. Kata kunci: bangunan tahan gempa, cross-laminated timber, dinding geser kayu ABSTRACTGreed building is one of the main concepts in our soiety as we heading towards sustainable development goals. Cross-laminated timber (CLT) becomes popular as an alternative in constructing a building in urban area. Unlike glulam, each layer of CLT is stacked perpendicularly of, providing CLT with extra shear capacity in all transverse direction. Meanwhile, the standard of seismic resistant building in Indonesia has been updated from previously SNI 1726:2012 to the latest SNI 1726:2019, along with the change of respon spectrum parameter maps. The behaviour of CLT structure is therefore studied as the consequences of this change in order to see whether the performance of CLT structure still statisfy the lastest standard. The result shows that the shear load and maximum drift in accordance to SNI 1726:2012 are about 1433 kN and 42 mm, respectively. The shear load and maximum drift in accordance too SNI 1726:2019 are 842 kN and 24,5 mm, respectively. Both result shows that CLT mid-rise structure statisfy the previous standard and latest standard. Keywords: seismic-resistant building, cross-laminated timber, wooden shear wall
HUBUNGAN PROJECT PLANNING DAN PROYEK SUKSES: META-ANALISIS Inda Widadi; Hrc. Priyosulistyo; Akhmad Aminullah; Toriq Arif Ghuzdewan
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36906

Abstract

ABSTRAK Perencanaan proyek dianggap menjadi aspek penting untuk mencapai proyek yang sukses. Peneliti terdahulu banyak membuktikan bahwa perencanaan sangat berperan penting terhadap kesuksesan proyek. Menurut Wang dan Gibson (2008) dalam penelitiannya, perencanaan merupakan hal yang sangat penting, semakin banyak usaha yang dilakukan pada proses perencanaan, maka proyek akan menjadi lebih sukses. Namun sebaliknya, Chatzoglou dan Macaulay (1996) mengungkapkan bahwa setiap perencanaan yang ketat akan mengakibatkan keterlambatan secara berantai pada fase proyek berikutnya. Berdasarkan perbedaan pendapat dari para peneliti tersebut, maka perlu adanya penegasan dan pembuktian hubungan perencanaan terhadap kesuksesan proyek secara empiris dari sejumlah penelitian - penelitian terdahulu. Pada penelitian ini, perolehan data didapatkan dari 12 artikel yang berhubungan dengan perencanaan dan pengaruhnya terhadap kesuksesan proyek yang memiliki data statistik, yaitu nilai F, t, d maupun r. Data diolah dengan menggunakan metode Meta-Analisis. Hasil analisis data membuktikan bahwa terdapat hubungan positif antara perencanaan proyek (project planning) dan proyek sukses, yakni nilai korelasi populasi (true score) sebesar (ρ) = 0,429 dengan nilai interval kepercayaan 95%Kata kunci: Perencanaan, Proyek Sukses, Manajemen Proyek, Meta-Analisis  ABSTRACTProject planning is considered to be an important aspect in achieving the successful project. Many previous researchers have proved that planning was very important aspect in the success of the project. According to Wang and Gibson (2008) in their research, planning was very important, the more effort done in the planning process, the project would become more successful. But conversely, Chatzoglou and Macaulay (1996) revealed that any strict planning will result in a series of delays in the next project phase. Based on the different opinions of the researchers, it is necessary to affirm and prove the relationship between planning and project success empirically from some previous studies. In this study, the acquisition of data obtained from 12 articles relating to planning and its effect on the success of projects that have statistical data, namely the value of F, t, d and r. Data were processed using the Meta-Analysis method. The results of the data analysis prove that there is a positive relationship between project planning and project success, namely the correlation value (true score) of (ρ) = 0.429 with a 95% confidence intervalKeywords: Planning, Project Success, Project Management, Meta-Analysis
KUAT TARIK DAN POLA KEGAGALAN KOMBINASI SAMBUNGAN BAUT DAN SEKRUP PADA BAJA CANAI DINGIN Muhammad Nur Ikhsan; Ali Awaludin; Andreas Triwiyono
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36900

Abstract

ABSTRAK Saat ini, material Cold Formed Steel (CFS) lebih umum digunakan karena kekuatan tariknya yang diketahui daripada material Hot Rolled Steel (HRS). Bahan konstruksi CFS tidak hanya digunakan untuk fungsi struktur atap, tetapi juga banyak digunakan sebagai struktur bangunan. Perilaku koneksi kombinasi baut dan sekrup CFS diidentifikasi untuk mengetahui jenis kegagalan dan kapasitas sambungan. Beban maksimum pengujian tarik diterapkan pada dua jenis bahan CFS. Spesimen dalam penelitian ini terdiri dari dua variasi ukuran lembar CFS 40 mm x 340 mm dan 40 mm x 360 mm. Lembar pertama digunakan untuk sambungan sekrup, baut dilengkapi ring, dan baut tanpa ring. Lembar kedua digunakan untuk sambungan kombinasi sekrup dengan baut tanpa ring dan sambungan kombinasi sekrup dengan baut dilengkapi ring. Hasil penelitian menunjukkan bahwa nilai slip spesimen sambungan baut dilengkapi ring lebih besar daripada spesimen sambungan baut tanpa ring. Nilai kapasitas tarik yang diperoleh dari koneksi kombinasi baut dengan washer dan sekrup lebih besar daripada yang tanpa ring dengan sekrup. Pola kegagalan pengujian tarik adalah kegagalan sobek dan kegagalan patah. Kata kunci: kombinasi, sambungan, baut, sekrup, CFS ABSTRACTNowadays, Cold Formed Steel (CFS) materials is more commonly used because of its known tensile strength than Hot Rolled Steel (HRS) material. CFS construction material is not only used for roof structures function, but also widely used as building structures. The behavior of bolt and screw combination connections of CFS was identified to know the type of failure and connection capacity. A maximum load of tensile testing was applied to two type of CFS materials. The specimens in this study consisted of two variations CFS sheet sizes 40 mm x 340 mm and 40 mm x 360 mm. The first sheet is used for screw connectors, bolt with washers, and bolt without washers. The second sheet is used for screw connectors combined with bolts without washer and screw connectors combined with bolts and washer. The results showed that the slip value of the bolt connection specimens with washers was greater than the bolt connection specimens without washer. The tensile capacity value obtained by the bolt combination connection with washer and screw was more rodust than the one without washer and screw. The failure patterns of tensile testing were a pull-through and fracture failures. Keywords: combination, connection, bolt, screw, CFSABSTRAK Saat ini, material Cold Formed Steel (CFS) lebih umum digunakan karena kekuatan tariknya yang diketahui daripada material Hot Rolled Steel (HRS). Bahan konstruksi CFS tidak hanya digunakan untuk fungsi struktur atap, tetapi juga banyak digunakan sebagai struktur bangunan. Perilaku koneksi kombinasi baut dan sekrup CFS diidentifikasi untuk mengetahui jenis kegagalan dan kapasitas sambungan. Beban maksimum pengujian tarik diterapkan pada dua jenis bahan CFS. Spesimen dalam penelitian ini terdiri dari dua variasi ukuran lembar CFS 40 mm x 340 mm dan 40 mm x 360 mm. Lembar pertama digunakan untuk sambungan sekrup, baut dilengkapi ring, dan baut tanpa ring. Lembar kedua digunakan untuk sambungan kombinasi sekrup dengan baut tanpa ring dan sambungan kombinasi sekrup dengan baut dilengkapi ring. Hasil penelitian menunjukkan bahwa nilai slip spesimen sambungan baut dilengkapi ring lebih besar daripada spesimen sambungan baut tanpa ring. Nilai kapasitas tarik yang diperoleh dari koneksi kombinasi baut dengan washer dan sekrup lebih besar daripada yang tanpa ring dengan sekrup. Pola kegagalan pengujian tarik adalah kegagalan sobek dan kegagalan patah. Kata kunci: kombinasi, sambungan, baut, sekrup, CFS ABSTRACTNowadays, Cold Formed Steel (CFS) materials is more commonly used because of its known tensile strength than Hot Rolled Steel (HRS) material. CFS construction material is not only used for roof structures function, but also widely used as building structures. The behavior of bolt and screw combination connections of CFS was identified to know the type of failure and connection capacity. A maximum load of tensile testing was applied to two type of CFS materials. The specimens in this study consisted of two variations CFS sheet sizes 40 mm x 340 mm and 40 mm x 360 mm. The first sheet is used for screw connectors, bolt with washers, and bolt without washers. The second sheet is used for screw connectors combined with bolts without washer and screw connectors combined with bolts and washer. The results showed that the slip value of the bolt connection specimens with washers was greater than the bolt connection specimens without washer. The tensile capacity value obtained by the bolt combination connection with washer and screw was more rodust than the one without washer and screw. The failure patterns of tensile testing were a pull-through and fracture failures. Keywords:combination, connection, bolt, screw, CFS 
STATE OF THE ART PERSELISIHAN KONTRAK KONSTRUKSI DI INDONESIA Dede Amar Udi Ilma; Fadia Fitriyanti; Faqih Ma’arif; Nasrun Baldah; Bambang Utoyo
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36901

Abstract

ABSTRAKPaper ini membahas tentang state of the art penyelesaian sengketa konstruksi di Indonesia yang meliputi jenis sengketa, indikasi potensi sengketa, dan perbandingan peraturan penyelesaian sengketa jasa konstruksi. Metode yang digunakan adalah mix method yang terdiri dari expert judgment, studi literatur dengan memperbandingkan riwayat penyelesaian perselisihan kontrak konstruksi mengacu kepada UU No.02/2017, Perpres No.16, UU No. 30 / 1999, dan PP No. 22/2020, dan Dispute Resolution Management Matrix (DRM-Matrix). Hasil analisis menunjukkan bahwa dua hal pokok penyelesaian sengketa yaitu pilihan penyelesaian sengketa dan penyelesaian sengketa di luar pengadilan (litigasi dan non litigasi). Penyempurnaan diberlakukan dalam PP No.22 Tahun 2020 yang menjelaskan tentang tahapan penyelesaian sengketa yang menyangkut mediasi, konsiliasi, dan arbitrase, juga terkait dengan penunjukkan dewan sengketa.Kata kunci: kontrak, konstruksi, perselisihan, state of the art ABSTRACTThis paper discusses of state of the art construction dispute resolution in Indonesia, which includes types of disputes, indications of potential disputes, and comparison of construction service dispute resolution regulations. The proposed method is a mixed-method consisting of expert judgment, literature study by comparing the history of construction contract dispute settlement referring to Law No. 02/2017, Presidential Decree No. 16, Law No. 30/1999, and PP. 22/2020, and the Dispute Resolution Management Matrix (DRM-Matrix). The results show that there are two main issues for dispute resolution, namely the choice of dispute resolution and dispute resolution outside the court (litigation and non-litigation). Improvements are enforced in Government Regulation No.22 of 2020 which explains the stages of dispute resolution involving mediation, conciliation and arbitration, as well as the appointment of a dispute board.Keywords: contract, constructions, dispute, state of the art
PENGARUH HAMBATAN SAMPING TERHADAP KINERJA JALAN (STUDI KASUS RUAS JALAN DEPAN PASAR MAYONG JEPARA) Adib Wahyu Hidayat
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36902

Abstract

ABSTRAKKeberadaan pabrik di sebuah jalan akan memberikan dampak peningkatan jumlah arus lalu lintas dan tingginya nilai hambatan samping pada suatu ruas jalan. Hambatan samping yang tinggi menyebabkan ruas jalan depan pasar Mayong mengalami kemacetan lalu lintas pada jam-jam sibuk. Tujuan penelitian ini adalah untuk mengetahui pengaruh hambatan samping terhadap kecepatan tempuh kendaraan ringan dan melihat derajat kejenuhan terhadap permasalahan yang ditimbulkan akibat faktor hambatan samping pada ruas jalan depan Pasar Mayong, Jepara melalui analisa hasil pengamatan dengan PKJI 2014. Hasil analisis hubungan hambatan samping (KHS) pada segmen 1 dan kecepatan di ruas jalan depan pasar mayong mengalami hambatan samping sebesar y=1,6179x2+74,357x. Didapatkan koefisien determinasi sebesar 0,4238. Nilai koefisien korelasinya 0,651. Sedangkan hasil analisis hubungan hambatan samping (KHS) pada segmen 2 dan kecepatan di ruas jalan depan pasar mayong mengalami hambatan samping sebesar y=-6,6333x2+490,8x-8666,6 dan koefisien determinasi sebesar 0,2241, sedangkan nilai koefisien korelasinya 0,473. Kata kunci: hambatan samping, derajat kejenuhan, PKJI 2014  ABSTRACTThe existence of a factory on a road will have an impact on increasing the traffic flow and the high value of other side resistance on a road. This causes the Mayong market's front roads to become more limited during rush hours, thereby reducing the speed and capacity of the reduced road, resulting in traffic congestion. The purpose of this study was to study side interactions with light vehicle travel speeds and see the degree of saturation of problems caused by other factors on the front road of the Mayong Market, Jepara through research findings with the 2014 PKJI. Vehicles coming in and out of the road. The results of the analysis of the side obstacle relationship (KHS) in segment 1 and speed on the road segment in the Mayong market increase the side barriers by y=-1.6179x2+74.357x and also obtain a coefficient of determination of 0.4238, While the correlation coefficient is 0.651. The results of the side relationship analysis (KHS) in segment 2 and speed on the Mayong market front road repair the side barriers by y=-6,6333x2+490,8x-8666,6 and also obtained a coefficient of determination of 0.2241, while the value of the correlation coefficient is 0.473. Keywords: side resistance, degree of saturation, PKJI 2014 ABSTRAKKeberadaan pabrik di sebuah jalan akan memberikan dampak peningkatan jumlah arus lalu lintas dan tingginya nilai hambatan samping pada suatu ruas jalan. Hambatan samping yang tinggi menyebabkan ruas jalan depan pasar Mayong mengalami kemacetan lalu lintas pada jam-jam sibuk. Tujuan penelitian ini adalah untuk mengetahui pengaruh hambatan samping terhadap kecepatan tempuh kendaraan ringan dan melihat derajat kejenuhan terhadap permasalahan yang ditimbulkan akibat faktor hambatan samping pada ruas jalan depan Pasar Mayong, Jepara melalui analisa hasil pengamatan dengan PKJI 2014. Hasil analisis hubungan hambatan samping (KHS) pada segmen 1 dan kecepatan di ruas jalan depan pasar mayong mengalami hambatan samping sebesar y=1,6179x2+74,357x. Didapatkan koefisien determinasi sebesar 0,4238. Nilai koefisien korelasinya 0,651. Sedangkan hasil analisis hubungan hambatan samping (KHS) pada segmen 2 dan kecepatan di ruas jalan depan pasar mayong mengalami hambatan samping sebesar y=-6,6333x2+490,8x-8666,6 dan koefisien determinasi sebesar 0,2241, sedangkan nilai koefisien korelasinya 0,473. Kata kunci: hambatan samping, derajat kejenuhan, PKJI 2014ABSTRACTThe existence of a factory on a road will have an impact on increasing the traffic flow and the high value of other side resistance on a road. This causes the Mayong market's front roads to become more limited during rush hours, thereby reducing the speed and capacity of the reduced road, resulting in traffic congestion. The purpose of this study was to study side interactions with light vehicle travel speeds and see the degree of saturation of problems caused by other factors on the front road of the Mayong Market, Jepara through research findings with the 2014 PKJI. Vehicles coming in and out of the road. The results of the analysis of the side obstacle relationship (KHS) in segment 1 and speed on the road segment in the Mayong market increase the side barriers by y=-1.6179x2+74.357x and also obtain a coefficient of determination of 0.4238, While the correlation coefficient is 0.651. The results of the side relationship analysis (KHS) in segment 2 and speed on the Mayong market front road repair the side barriers by y=-6,6333x2+490,8x-8666,6 and also obtained a coefficient of determination of 0.2241, while the value of the correlation coefficient is 0.473. Keywords:side resistance, degree of saturation, PKJI 2014  
DESAIN SABO DAM TIPE CONDUIT SEBAGAI PENGENDALI DAYA RUSAK ALIRAN DEBRIS Yuli Fajarwati; Teuku Faisal Fathani; Fikri Faris; Wahyu Wilopo
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36897

Abstract

ABSTRAKSungai Air Kotok di Kabupaten Lebong, Bengkulu memiliki litologi batuan yang rapuh akibat pengaruh panas bumi, kondisi tersebut menyebabkan rentan mengalami pergerakan massa tanah/batuan. Oleh karena itu, diperlukan upaya mitigasi untuk mengurangi risiko bencana dengan perencanaan bangunan pengendali aliran debris berupa sabo dam. Penelitian ini bertujuan untuk merencanakan desain sabo dam tipe conduit yang dirancang secara seri dan mengevaluasi stabilitas sabo dam berdasar SNI 2851:2015. Hasil perhitungan menunjukkan debit puncak untuk kala ulang 100 tahun sebesar 171,21 m3/detik. Empat seri sabo dam memiliki dimensi lebar pelimpah rerata ± 40 m, kedalaman aliran debris sebesar 1 m, dan tinggi pelimpah ialah 2,4 m. Stabilitas sabo dam saat banjir diperoleh faktor aman untuk stabilitas geser dan guling sebesar 3,46 ; 1,62. Adapun faktor aman terhadap pengaruh aliran debris untuk stabilitas geser dan guling adalah 3,30 ; 1,58. Berdasarkan hasil analisis, empat seri sabo dam tipe conduit yang dirancang mampu mengendalikan daya rusak banjir maupun aliran debris.Kata kunci: Hidraulika sungai, aliran sedimen, bangunan sabo, stabilitas sabo ABSTRACTAir Kotok River in Lebong Regency, Bengkulu Province has the lithology of weathered rock which is a result of geothermal process, this condition causes to be susceptible to land / rock mass movements. Therefore, the mitigation efforts are needed to reduce the risk from disaster by design debris flow control such as sabo dam. This study aims to design series of conduit type sabo dam and evaluate the stability based on SNI 2851: 2015. The calculation shows that the peak discharge for the 100-year return period is 171.21 m3 / sec. The four sabo dam series have dimensions of spill width of ± 40 m, debris flow depth of 1 m, and overflow height of 2.4 m. The stability of sabo dam has safety factor in flood condition for shear and overturning stability are 3.46; 1.62, while in a debris flow condition for shear and overturning stability are 3.30; 1.58. Based on the results, the four series of conduit sabo dam are able to control the destructive power of floods and debris flows.Key word: River hydraulic, sediment flow, sabo building, stability of sabo
FEASIBILITY STUDY BENDUNGAN POH SANTEN DI KABUPATEN JEMBRANA Ketut Nuraga; I Gusti Lanang Bagus Eratodi
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36903

Abstract

ABSTRAKPembangunan sarana penyediaan air baku bagi Kabupaten Jembrana merupakan salah satu kebutuhan yang utama bagi kelangsungan hidup masyarakat di daerah tersebut. Sarana penyediaan air baku berupa bendungan sebagai tempat tampungan air merupakan suatu alternatif dalam mengatasi masalah pemenuhan kebutuhan air irigasi dan air bersih didaerah tersebut. Pada studi-studi tentang ketersediaan air baik air permukaan maupun bawah permukaan dengan tingkat kebutuhan air penduduk di Kabupaten Jembrana yang semakin meningkat, maka telah direkomendasikan untuk melakukan kajian-kajian teknis tentang upaya-upaya penyediaan air baku terutama dengan membangun bendungan. Salah satu studi yang telah direkomendasikan adalah melakukan studi pendahuluan berupa studi kelayakan Bendungan Poh Santen di daerah aliran sungai (DAS) Tukad Pergung di Kecamatan Medoyo. Dalam studi ini, desain awal bendungan Poh Santen dipilih konstruksi Bendungan Tipe Urugan Inti Vertikal dengan material urugan random sesuai dengan ketersediaan jenis material di lokasi studi. Tinggi bendungan 32 m dan tampungan total sebesar 1,272x106 m3. Pemanfaatan air bendungan Poh Santen untuk memenuhi kebutuhan air irigasi seluas 269 ha dan memenuhi kebutuhan air bersih penduduk dengan debit rencana sebesar 0,142 m3/dt. Analisis kelayakan didapat hasil bendungan Poh Santen dinyatakan sangat layak untuk dilajutkan pada tahap Detail Desain (IRR12% dan BCR1)Kata kunci: bendungan, tampungan, air irigasi, air bersih, kelayakan teknis  ABSTRACTThe construction of raw water supply facilities for Jembrana Regency is one of the main needs for the survival of the people in the area. Means of supplying raw water in the form of dams as water reservoirs are an alternative in overcoming the problem of meeting the needs of irrigation water and clean water in the area. In studies of the availability of water both surface and subsurface water with the increasing level of water needs of the population in Jembrana Regency, it has been recommended to conduct technical studies on efforts to provide raw water, especially by building dams. One study that has been recommended is a preliminary study in the form of a feasibility study of the Poh Santen Dam in the Tukad Pergung watershed in Medoyo District. In this study, the initial design of the Poh Santen dam was chosen by the construction of a Vertical Core Urugan Dam type with a random Urugan material according to the availability of material types at the study site. The dam is 32 m high and the total reservoir is 1,272 x 106 m3. Utilization of Poh Santen dam water to meet irrigation water needs covering an area of 269 ha and meet the population's clean water needs with a planned discharge of 0.142 m3 / sec. The feasibility analysis shows that the results of the Poh Santen dam are declared to be very feasible to be continued at the Design Detail stage (IRR 12% and BCR 1)Keywords: dams, reservoirs, irrigation water, clean water, technical feasibility
PERANCANGAN FONDASI GEDUNG TEMPORARY EVACUATION SHELTER (TES) TSUNAMI DAN GEMPA Mitsaq Addina Nisa; Iman Satyarno; Hary Christady Hardiyatmo
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36898

Abstract

ABSTRAKTemporary Evacuation Shelter (TES) didefinisikan sebagai bangunan yang berfungsi untuk tempat tujuan evakuasi. TES disebut juga bangunan penyelamatan dan perlindungan vertikal. Selain fungsi utama TES sebagai tempat evakuasi saat terjadi bencana gempa maupun tsunami, TES diharapkan mempunyai fungsi sekunder, yaitu sebagai fasilitas umum seperti tempat rekreasi, sekolah, tempat ibadah, dan lain-lain. TES dengan konstruksi yang kuat diharapkan dapat menjadi alternatif mitigasi untuk menekan korban jiwa akibat bencana gempa dan tsunami. Untuk memastikan ketahanan dan kekuatan struktur TES, perlu dilakukan evaluasi struktur fondasi dengan memperhatikan kondisi tanah dan potensi-potensi kerusakan di sekitar lokasi, yaitu likuifaksi dan scouring. Kemudian dilakukan permodelan untuk mengetahui apakah fondasi yang direncanakan mampu menahan beban-beban yang terjadi pada bangunan dan fondasi. Kata kunci: Temporary Evacuation Shelter, vertical evacuation, fondasi, Plaxis 2D, SAP2000, Response 2000 ABSTRACTTemporary Evacuation Shelter (TES) is defined as a building used for evacuation facilities. It is also referred to as a vertical evacuation building. In addition to the main function of TES as an evacuation site during an earthquake or tsunami, TES also has a secondary function, namely as public facilities such as recreation areas, schools, places of worship, and others. A well-constructed TES is expected to be an alternative mitigation to reduce damage and casualties due to earthquakes and tsunamis. To ensure the durability and strength of the TES structure, it is necessary to evaluate the foundation structure by checking soil conditions and potential structural failures around the site, namely liquefaction and scouring. The TES substructure is modeled to see whether the design foundation can withstand the loads that occurred to the building and foundations. Keywords: Temporary Evacuation Shelter, vertical evacuation, foundation, Plaxis 2D, SAP2000, Response 2000.