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All Journal Astonjadro Jurnal Teslink : Teknik Sipil dan Lingkungan Sistem Infrastruktur Teknik Sipil (SIMTEKS)
Kusmana, Dody
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Civil Engineering, Building, Construction & Architecture Environmental Science Transportation

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Penggunaan ultrasonic pulse velocity untuk kajian engineering struktur bangunan gedung Pasar Kosambi Bandung Indonesia Dody Kusmana, Dody Kusmana
Jurnal TESLINK : Teknik Sipil dan Lingkungan Vol 3 No 1 (2021): Maret 2021
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/teslink.v2i1.74

Abstract

Penelitian ini bertujuan untuk melakukan pengujian kepadatan beton Bangunan Pasar Kosambi yang terletak di Bandung, Indonesia setelah mengalami kebakaran hampir 40 jam di lantai semi basement pada tanggal 18 mei 2019. Metode uji yang digunakan adalah Ultrasonic Pulse Velocity (UPV) untuk menguji struktur beton bangunan Gedung. Kajian ini dilakukan berdasarkan standar dan persyaratan yang berlaku di Indonesia. Pengujian UPV untuk mengetahui kepadatan beton diambil pada bangunan Pasar Kosambi Bandung dengan total lokasi uji sebanyak 25 Titik. Pengujian kepadatan beton dilakukan pada Kolom, Balok dan Pelat Lantai dengan metoda Direct dan Semi-Direct. Hasil pengujian integritas kepadatan beton (Ultrasonic Pulse Velocity) menunjukan tingkat kepadatan beton yang masuk kedalam kategori buruk dengan nilai rambatan 2.4 km/sec ( 20,4 Mpa atau 240,9 kg/cm2) hingga kategori sangat baik dengan nilai rambatan 4.6 km/sec ( 45,2 Mpa atau 533,7 kg/cm2). Penelitian ini diharapkan dapat memberikan rekomendasi tingkat kelayakan operasi Bangunan Pasar Kosambi Bandung, Indonesia.
Mitigation of landslides due to land use in population settlements Kusmana, Dody; Paikun; Rohadi, Edi
Jurnal TESLINK : Teknik Sipil dan Lingkungan Vol 3 No 2 (2021): September 2021
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/teslink.v3i2.86

Abstract

The implementation of housing development carried out by the developer is suspected of not meeting the administrative, technical and environmental requirements. By not carrying out the provisions to carry out efforts to stabilize slopes and apply appropriate drainage systems, to minimize loading on the slopes and allegedly not conducting geological studies of environmental planning or basic engineering geology as the basis for the implementation of development so that the impact on the environment in the form of the Cimanggung landslide occurs.Landslide is one of the natural disasters that often hit hilly areas in the wet tropics. Mass movement, generally caused by gravitational forces and sometimes vibrations or earthquakes also support the occurrence. Mass movement in the form of landslides occurs due to the shear debris along the landslide area which is the limit of the movement of the soil or rock mass. Soil motion is the process of moving a mass of rock/soil due to the force of gravity. Soil motion is often referred to as a landslide of the soil/rock mass and is generally defined as a movement of soil and/or rock from its place of origin due to the influence of gravity.
EVALUASI KINERJA WAKTU DAN BIAYA PADA PROYEK WU TOWER BANDUNG Utomo, Bagus Krido; Kusmana, Dody
Sistem Infrastruktur Teknik Sipil (SIMTEKS) Vol 4 No 2 (2024): SIMTEKS - September
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Sangga Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32897/simteks.v4i2.3947

Abstract

The research evaluates the time and cost performance of the Wu Tower Project in Bandung using the Earned Value (EV) method. The scope of the research includes a comprehensive literature study on the concept of Earned Value (EV) and its application in the evaluation of time and cost performance of construction projects. In addition, the research also includes the measurement of the actual time and cost performance of the Wu Tower Project using the EV method, analysis of influencing factors, especially those related to design complexity, scope changes, and labor, as well as comparison of actual time and cost performance with predetermined standards. The performance of the project implementation time in the 1st month (one) to the 8th month (eight) is progressing well as indicated by the SV (Schedule Variant) variant value is positive or the SPI performance index ≥ 1, this indicates that the work is progressing both in schedule and budget. For the 9th (ninth) to 11th (eleventh) month, the SV (Schedule Variant) value is negative, which means that the work is delayed, but the project completion expenditure budget is still quite efficient because the SPI value is ≥ 1. Based on the Performance Index value, the overall SPI value gets an average value of 1.73, which means that the project is progressing towards time performance, while the CPI value generally gets an average SPI value ≥ 1, which means that the costs incurred are more economical, so that the project is more efficient.
EVALUASI EFISIENSI BIAYA DAN WAKTU ANTARA METODE KONVENSIONAL DAN PRACETAK DALAM PEKERJAAN DRAINASE U-DITCH DI RUAS JALAN NASIONAL JAMBI Iskandar, Bugie Rastapi; Kusmana, Dody
Sistem Infrastruktur Teknik Sipil (SIMTEKS) Vol 4 No 2 (2024): SIMTEKS - September
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Sangga Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32897/simteks.v4i2.3949

Abstract

Cost and time efficiency are two crucial aspects that influence the success of a construction project. Conventional methods are usually used because they are considered more flexible and easily adapted to field conditions. However, the precast method is increasingly in demand because it is claimed to be more efficient and faster in implementation. This research uses a case study approach by collecting primary and secondary data from planned work. Cost data is obtained from the detailed cost budget (RAB), while time data is taken from the project implementation schedule (time schedule). The analysis was carried out by comparing the total costs and time duration between conventional and precast methods using the 2018 Bina Marga Specifications. The research results show that the precast method has advantages in time efficiency, with an average construction time that is shorter than conventional methods. However, in terms of costs, precast methods tend to be more expensive in the initial stages due to the high production costs of precast elements.
LABOR PRODUCTIVITY RATING MODEL FOR LIGHT BRICK WALL INSTALLATION IN RESIDENTIAL PROJECTS Paikun, Paikun; Fatimah, Cici; Nugroho, Nadhya Susilo; Kusmana, Dody
ASTONJADRO Vol. 10 No. 2 (2021): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v10i2.4998

Abstract

Management on a construction project is something that cannot be ignored, because without construction management a project will be difficult to run according to expectations in the form of cost, time, quality and the success or failure of a construction project depends on the effectiveness of resource management. One way that can be done to achieve project objectives is to increase work productivity. This study aims to determine the productivity of labor in the installation of lightweight brick walls based on facts in housing projects. Labor productivity by analyzing the LUR value and productivity rating then becomes the regression analysis data to produce the model. The data search was carried out by direct observation to the field and conducting unstructured interviews with workers in the field. The resource persons are workers as artisans and workers who are experts in the work of installing light brick walls. This productivity measurement uses the productivity rating method, where worker activities are classified into 3 things, namely Essential contributory work, Effective work, and not useful. The results of the analysis show that the productivity of light brick wall installation workers based on the fact has higher productivity than the SNI labor coefficient. To calculate the labor productivity of installing lightweight brick walls, then the model from the results of this study can be used. The results of the evaluation of the model to predict labor productivity for installing lightweight brick walls have an average accuracy of 99.34%, so the model can be declared accurate.
Co-Authors Fatimah, Cici Iskandar, Bugie Rastapi Paikun Rohadi, Edi Susilo Nugroho, Nadhya Utomo, Bagus Krido