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Institut Teknologi Nasional Malang
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PENERAPAN METODE SIMPLEKS UNTUK OPTIMALISASI PENGGUNAAN ALAT BERAT PADA PEKERJAAN GALIAN DAN PENGANGKUTAN Majid, Haqya; Lila Ayu Ratna Winanda; Munasih
Jurnal Teknik Sipil Vol. 10 No. 1 (2025): De'Teksi : Jurnal Teknik Sipil
Publisher : Universitas Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56071/deteksi.v10i1.1035

Abstract

Most construction projects currently use heavy equipment during their implementation. The purpose of using heavy equipment is to make it easier to do work so that work can be done more easily and quickly. The Babon River is a river that crosses the city of Semarang with a watershed area of ​​119,417 km2 and a length of around 17 km starting from downstream of Pucang Gading Dam to the estuary passing Karang Roto Dam. The condition of the Babon River, which is experiencing channel narrowing and shallowing, has reduced the capacity of the river's cross-section to carry flood discharge, so that during the rainy season, floods often occur which inundate the area around the Babon River. Therefore, it is necessary to normalize the Babon River so that its function continues to run well so that it can overcome flooding in the area around the Babon River. Through the preparation of this journal the author tries to analyze the productivity of each heavy equipment used, namely: PC-200 Excavator, Hitachi ZX210LC-5g Long Arm Excavator + pontoon, Hino FG 260 JJ Dump Truck, Hino 136 HD Dump Truck, and Dump Truck Hino FM 260 JD. Based on the analysis results, the productivity results of the PC-200 Excavator were: 228.3 m3/hour, the productivity of the Hitachi ZX210LC-5g Long Arm Excavator + pontoon: 73.6 m3, the productivity of the Hino FG 260 JJ Dump Truck: 17.54 m3/hour, Hino 136 HD Dump Truck productivity: 11.76 m3/hour, Hino FM 260 JD Dump Truck productivity: 25.23 m3/hour. Keywords: Heavy Equipment, Heavy Equipment Optimization, Heavy Equipment Productivity
ANALISA PRODUKTIVITAS TENAGA KERJA TUKANG BATU PADA PROYEK PEMBANGUNAN GEDUNG ADIPADMA IIK BHAKTI WIYATA KEDIRI Nugroho; Ir. H. Edi Hargono,D.P.; MS, Ir. Munasih, MT
SONDIR Jurnal Sondir
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.839 KB) | DOI: 10.36040/sondir.v1i2.2567

Abstract

Produktivitas tenaga kerja pada konstruksi merupakan tanggungjawab penting dan bersifat strategis bagi manajemen konstruksi. Rendahnya produktivitas tenaga kerja dapat mengakibatkan proyek pembangunan yang dihasilkan tidak maksimal, bahkan dapat mengakibatkan kerugian bagi kontraktor. Hal ini diduga adanya faktor-faktor yang mempengaruhi diantaranya: faktor motivasi, disiplin, pendidikan, usia, dan pengalaman kerja. Sehingga dilakukan perbandingan antara produktivitas tenaga kerja dilapangan dengan Standar Nasional Indonesia (SNI). Penelitian ini dilakukan dengan mengadakan observasi lapangan, wawancara, penyebaran kuesioner terhadap 44 pekerja serta melakukan pengukuran produktivitas tenaga kerja tukang batu. Data yang diperoleh dari kuesioner diolah dengan menggunakan metode regresi berganda dan menggunakan program bantu SPSS versi 21. Dari hasil perhitungan rata-rata produktivitas tenaga kerja tukang batu dengan jam kerja selama 7 jam per hari dan komposisi 1 tk : 2 pk didapatkan sebesar 14,21 m2/hari. Dengan tingkat kesalahan sebesar α = 5% untuk 5 jam kerja dengan komposisi 1 Tk : 2 Pk produktivitas tenaga kerja di lapangan didapatkan sebesar 11,34 m2/hari sedangakan di SNI 2002 sebesar 10 m2/hari, dimana dilapangan lebih besar dengan perbandingan sebesar 1,34m2/hari atau 13,4%. Faktor disiplin = 0,034 dan faktor pengalaman kerja = 0,000 secara simultan berpengaruh yang signifikan terhadap produktivitas tenaga kerja tukang batu. Faktor yang paling dominan yang mempengaruhi produktivitas tenaga kerja tukang batu adalah faktor pengalaman kerja dengan nilai koefisien β tertinggi sebesar 0,260.
KAJIAN FAKTOR – FAKTOR PENYEBAB KECELAKAAN KONSTRUKSI Prayitno Osmar Dangga; Munasih; Lila Ayu Ratna Winanda
SONDIR JURNAL SONDIR
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/sondir.v5i1.3635

Abstract

Tingkat pengetahuan, pemahaman, dan penerapan oleh pihak-pihak yang terkait untuk pencegahan keselamatan kerja sangat rendah. Tujuan dalam penelitian adalah untuk mengidentifikasiakan faktor-faktor yang menyebabkan kecelakaan konstruksi dam untuk mengetahui hubungan antar faktor yang teridentifikasi. Penelitian ini dilakukan penelusuran literature dan kejadian kecelakaan dengan cara melakukan pencarian faktor-faktor penyebab kecelakaan kerja pada konstruksi dengan menggunakan acuan dari penelitian terdahulu, berita media cetak dan elektronik, setelah itu melakukan penelusuran terhadap berita-berita kecelakaan konstruksi yang telah terjadi pada 10 tahun terakhir dalam bentuk sintesa uraian dan table untuk mencari hubungan antar factor, apakah factor tersebut mempunyai hubungan searah atau timbal balik dengan bantuan aplikasi Ventana simulation (Vensim) PLE yang digunakan untuk mengukur hubungan antara faktor penyebab kecelakaan dengan melihat diagram caustik.Hasil analisis kecelakaan yang dominan terjadi, faktor dominan penyebab kecelakaan, hubungan antar faktor dalam causatik diagram menunjukan kejadian kecelakaan konstruksi yang sering terjadi dalam 10 tahun terakhir yang terangkum dari tahun 2015 sampai 2019 merupakan kejadian kecelakaan yang dimana memakan korban jiwa seperti luka-luka ringan bahkan meninggal dunia, adapaun kecelakaanya konstruksi terjadi pada proyek MRT, Jalan tol, jembatan, dan underpass dan yang sering terjadi adalah kecelakaan pada proyek jalan tol. Adapun factor-faktor yang menyebabkan kecelakaan kerja adalah tidak dilibatkannya tenaga ahli K3 konstruksi dan penggunaan metode pelaksanaan yang kurang tepat, lemahnya penguasaan K3, kurang emadainya kualitas dan kuantitas, ketersediaan peralatan perlindungan diri, kurang disiplinya para tenaga kerja dalam mematuhi ketentuan dalam K3
ANALISIS REKAYASA NILAI PADA PROYEK GEDUNG : (Studi Kasus Pada Gedung Rawat Inap 5 Lantai RSUD Dr. Iskak Tulungagung) Ajeng Tantri Anugerahini; Lila Ayu Ratna Winanda; Munasih
SONDIR JURNAL SONDIR
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/sondir.v5i2.4620

Abstract

Pengendalian biaya proyek merupakan hal yang penting dan harus diperhatikan dalam pembangunan sebuah proyek konstruksi. Pemilihan desain dan bahan juga berpengaruh terhadap mutu dan kualitas bangunan tersebut. Oleh karena itu perlu dilakukan peninjauan kembali dengan mengkaji ulang desain awal proyek dengan cara mereduksi dan mengidentifikasi biaya-biaya yang tidak perlu tanpa mengurangi kualitas dan fungsi bangunan. Analisis rekayasa nilai pada Pembangunan Gedung Rawat Inap 5 Lantai RSUD Dr. Iskak Tulungagung dilakukan pada pekerjaan arsitektur dikarenakan beberapa item pekerjaan mempunyai biaya yang tinggi pada pekerjaan kusen pintu dan jendela. Penelitian dilakukan dengan mencari alternatif-alternatif penganti material desain awal lalu akan diseleksi menggunakan analisa keuntungan dan kerugian. Selanjutnya akan diperoleh beberapa alternatif yang akan dianalisis lebih lanjut menggunakan metode Multi Criteria Discussion Making (MCDM) yaitu analisis kriteria non biaya dengan metode Analysis Hierarchy Process (AHP) dan analisis kriteria biaya dengan metode Life Cycle Cost (LCC). Dari hasil penelitian didapatkan alternatif penganti desain awal 5 jenis pekerjaan yaitu meliputi pekerjaan pintu P1 yaitu alternatif 1, pekerjaan pintu P3 alternatif 1, pekerjaan pintu PB1 alternatif 1, pekerjaan jendela J1 alternatif 3, dan pekerjaan jendela J4 yaitu alternatif 3. Besar penghematan yang diperoleh dari analisis sebesar Rp. 305.337.079,36. Total biaya keseluruhan proyek adalah Rp. 33.405.874.877,09 setelah dilakukan analisis rekayasa nilai menjadi Rp. 33.100.537.797,73 dengan penghematan sebesar 0,91 %. Biaya desain awal item pekerjaan yang terpilih (analisis rekayasa nilai) adalah Rp. 847.417.988,50 berubah menjadi Rp. 542.080.909,14 dengan penghematan sebesar 36,03%. Berdasarkan hasil penelitian ini, analisis rekayasa nilai terbukti memberikan penghematan biaya sesuai dengan fungsi bangunan.
PEMANFAATAN LIMBAH SERBUK KAYU JATI SEBAGAI MATERIAL PENGISI PADA CAMPURAN ASPHALT TREATED BASE (ATB) DITINJAU DARI UJI MARSHALL Muslimin; Eding Iskak Imananto; Munasih
SONDIR JURNAL SONDIR
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/sondir.v6i1.5172

Abstract

Pondasi pada perkerasan jalan berperan sangat penting dalam konstruksi jalan karena sebagai titik tumpu untuk meneruskan dan menyebarkan beban ke bagian konstruksi di bawahnya. Pada penelitian ini dilakukan penambahan limbak serbuk kayu jati sebagai material pengisi pada campuran Asphalt Treated Base (ATB). Analisis pengujian benda uji meliputi analisis kekuatan agregat terhadap tumbukan, indeks kepipihan, angka angularitas, berat isi agregat, analisa saringan agregat halus dan kasar, berat jenis dan penyerapan agregat halus, berat jenis dan penyerapan agregat kasar serta keausan agregat menggunakan alat los angeles. Pengujian benda uji aspal meliputi pemeriksaan penetrasi bahan-bahan bitumen, pemeriksaan titik nyala dan bakar, pemeriksaan titik lembek aspal dan ter, daktilitas bahan bitumen, pemeriksaan berat jenis bitumen keras dan ter, serta penurunan berat minyak aspal. Pengujian Marshall meliputi pengujian stabilitas, flow, VIM, VMA, MQ, VFA, dan density. Berdasarkan hasil analisa, diperoleh hasil yaitu serbuk kayu jati dapat dikatakan layak dijadikan material pengisi pada campuran ATB. Nilai persentase kadar serbuk kayu optimum (SKO) pada campuran ATB adalah sebesar 0,27% pada kadar aspal optimum 5.35% dengan nilai parameter marshall test stabilitas SKO sebesar 1084,33 kg, flow 3,46mm, VIM 4,54%, VMA 16,71%, MQ 312kg/mm, dan VFA 72,81%.
The Effect of Managerial Workload and Welfare Level on the Performance of School Principals in North Penajam Paser Regency Munasih, Munasih; Amalia, Kaniati; Hazin, Mufarrihul; Khamidi, Amrozi
Journal of English Language and Education Vol 11, No 2 (2026)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jele.v11i2.2258

Abstract

The performance of school principals plays a crucial role in determining the effectiveness of school management and the overall quality of education. Principals are required to carry out various managerial responsibilities while also maintaining professional performance under different organizational conditions. However, the increasing managerial workload and the level of welfare received by principals are often considered factors that may influence their performance in managing schools effectively. This study aims to empirically analyze the influence of managerial workload and welfare level on the performance of public and private elementary school principals in North Penajam Paser Regency, both partially and simultaneously. The study used a quantitative approach with an ex post facto causal design. The study population consisted of 109 principals, and all were sampled through a saturated sampling technique. Data collection was conducted using a five-level Likert-scale questionnaire that had been tested for validity and reliability. Data analysis was carried out through descriptive statistics, classical assumption tests, multiple linear regression, t-tests, F-tests, and coefficients of determination. The results showed that managerial workload had a positive and significant effect on principal performance with a significance value of 0.001 and a beta coefficient of 0.212. The welfare level also had a positive and significant effect with a significance value of 0.000 and a beta coefficient of 0.739 and was the most dominant variable. Simultaneously, both variables contributed 83.6% to the variation in principal performance. These findings indicate that improving principal performance requires strengthening managerial capacity as well as implementing policies that continuously enhance the welfare of school principals.
Optimalisasi Penjadwalan Proyek Menggunakan Metode Time-Cost Trade Off Tio Boanmora Nabasa Rajagukguk; Lila Ayu Ratna Winanda; Munasih; Sriliani Surbakti
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3205

Abstract

Accelerating the duration of construction projects has the potential to increase costs, so an analytical approach is needed to balance time and costs efficiently. This study analyzes the application of the Time–Cost Trade Off (TCTO) method in project scheduling optimization by evaluating the relationship between time acceleration and total cost changes. The study uses data on normal duration and accelerated duration, direct costs, and additional costs due to overtime. The analysis methods include the Critical Path Method (CPM) to identify critical activities and TCTO-based crashing analysis to determine economical acceleration alternatives. The results show that the normal project duration is 151 days with a total cost of IDR 1,634,386,623.07. The application of 2 hours of overtime resulted in a duration of 131 days with a total cost of IDR 1,811,132,883.32, while 3 hours of overtime reduced the duration to 123 days with a total cost of IDR 1,817,213,981.61. These findings indicate that accelerating the project duration has an impact on increasing costs, so the selection of an acceleration scenario needs to consider the trade-off between time reduction and additional costs as the basis for project scheduling decisions.
Analisis Ketidakpastian Durasi Menggunakan Metode PERT dan PDM Guna Mengantisipasi Risiko Pada Proyek Konstruksi Divo Reynandra Hermanto; Lila Ayu Ratna Winanda; Deviany Kartika; Munasih Munasih
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1251

Abstract

Duration uncertainty is a major problem in construction projects because it has the potential to cause delays in implementation and increase the risk of rework. Time planning that uses only one duration estimate is often unable to represent the dynamic variations in field conditions, resulting in an unrealistic schedule. Therefore, a scheduling approach is needed that can accommodate duration uncertainty while systematically describing the relationships between activities. This study aims to analyze the duration uncertainty of work and identify critical activities in order to anticipate the risk of construction project delays. The research method used is the integration of the Program Evaluation and Review Technique (PERT) and the Precedence Diagram Method (PDM). Data was obtained through interviews, field observations, and technical project document studies to determine optimistic, most likely, and pessimistic duration estimates (a–m–b). These estimates were processed using the PERT method to calculate the expected time, standard deviation, and variance of activities, then arranged in a PDM work network to determine the critical path. The results showed that the expected project duration was 225 days, with the highest level of uncertainty found in the B3 floor 6 steel beam work, which had a variance value of 2.250. The accumulated standard deviation of the critical path is 13.88 days with a variance root value of approximately ±4 days, indicating the potential for project duration deviations from the planned schedule. Therefore, it is recommended that activities with high variance on the critical path receive more intensive time control and supervision to minimize the risk of project delays.
Pendekatan Probabilistik Berbasis PERT dengan Visualisasi TFN pada Penjadwalan Proyek Konstruksi Ismatul Khasanah; Lila Ayu Ratna Winanda; Munasih Munasih; Annur Ma'ruf
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1250

Abstract

Uncertainty regarding the duration of activities is a major factor affecting the reliability of construction project schedules. Variability in resources, field conditions, material supplies, and other technical conditions often cause deviations between planned and actual durations. Therefore, this study aims to analyze project duration using the Program Evaluation and Review Technique (PERT) based on three-point estimates, namely optimistic (a), most likely (m), and pessimistic (b), and to visualize the duration range through Triangular Fuzzy Number representation to clarify the variation in estimates for each activity. The methods used in this study include collecting duration estimates (a, m, b) through structured interviews, calculating the Expected Time (te) for each activity, and compiling a work network using the Precedence Diagram Method (PDM) with Microsoft Project to determine the critical path and total project duration. The results of the study show that the total project duration is 170 days, with several activities on the critical path determining the project completion time, while probabilistic analysis results in a 70% chance of project completion within the target duration. The uncertainty of scheduling analysis can be resolved with a triangular fuzzy number visualization approach to extend the optimistic, most likely, and pessimistic time limits for each activity. Based on these results, this study is expected to encourage the application of PERT analysis based on three-point estimates visualized in the form of triangular distributions for each activity as a basis for setting target durations and making more realistic project acceleration decisions.
Risiko Ketidakpastian Durasi dengan Metode PERT pada Pekerjaan Struktur Atas Proyek Gedung Bertingkat Alfira Dwi Karimah; Lila Ayu Ratna Winanda; Munasih Munasih; Mohammad Erfan
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1249

Abstract

Uncertainty in duration often occurs in superstructure work due to the interdependence of activities and dynamic changes in field conditions. Deterministic scheduling methods such as the Critical Path Method (CPM) are considered incapable of representing duration variations realistically, thus requiring a probabilistic scheduling approach. Therefore, this study aims to analyze the duration of superstructure work using the Program Evaluation and Review Technique (PERT) method supported by scheduling using Microsoft Project software. The PERT method was applied through three time estimates, namely optimistic time, most likely time, and pessimistic time, with data obtained through interviews and questionnaires with experienced experts in the field of construction. Based on the analysis results, the actual duration of the project implementation reached 487 days, while the expected duration based on the PERT method was 235 days with a Z-score value of 9.79, resulting in a 47% probability of completion within the expected duration. The significant difference between the ideal duration and the actual conditions in the field indicates a 53% risk of delay that must be faced by the implementer, so that the results of this study can be used as a basis for consideration in determining a more realistic and tolerable project duration. More accurate time planning can be achieved by reducing the risk of delays through controlling and accelerating critical path activities, thereby optimizing the chances of project completion.
Co-Authors Achmad Rony Ardiansyah Adrianus Agus Santosa Ajeng Tantri Anugerahini AKMAL TAUFIQ ALHAKIM RUDIANTO Alfira Dwi Karimah Amalia, Kaniati Amrozi Khamidi Anno Dangga Annur Ma'ruf Ardiyanto Maksimilianus Gai Bonita Nabilla Deviany Kartika Divo Reynandra Hermanto Dwi Hadi Cahya Zulyama Eding Iskak Imananto Eding Iskak Imananto Elis Rosalin Puraro Emmalia Adriantantri Firstalina Vidya Pangestika Galih Abimanyu Zain Hanifa Noviandini Putri Hardianto Hardianto Harmutatik Harmutatik Harmutatik, Harmutatik I Wayan Mundra Ir. H. Edi Hargono,D.P. Ismatul Khasanah Joseph Dedy Irawan Lies Kurniawati Wulandari Lila Ayu Ratna Winanda Lila Winanda Majid, Haqya Maranatha Maranatha Wijaya Maranatha Wijayaningtyas MARIA BINTANG Mochamad Jeny Febya Lucmana Mochammad Imron Awalludin Mohammad Erfan Mufarrihul Hazin Mujiono Mujiono Mujiono Mujiono Muslimin MUSLIMIN Nenny Roostrianawaty Ni Ketut Pramidita Angga Cahya Nugroho Prayitno Osmar Dangga Renaldi P. P. Silvia Fauziah Sri Indriani Sriliani Surbakti Sujianto Sujianto Sujianto Thomas Priyasmanu Tio Boanmora Nabasa Rajagukguk Tiong Iskandar