Building Information Modeling (BIM) adalah suatu proses yang dimulai dengan menciptakan 3D model digital dan didalamnya berisi semua informasi bangunan tersebut, berfungsi sebagai sarana membuat perencanaan, perancangan, pelaksanaan pembangunan, serta pemeliharaan bangunan. Estimasi biaya menggunakan BIM memberikan kecepatan dan keakuratan perhitungan volume pekerjaan. Pengaplikasian BIM menggunakan software salah satunya Tekla Structure. Tekla Structure merupakan software memungkinkan membuat model yang sangat constructable struktural 3D terlepas dari materi atau kompleksitas struktural. Berdasarkan kelebihan BIM maka cocok diaplikasikan pada proyek pembangunan pasar desa adat Pecatu. Pembangunan pasar desa adat Pecatu merupakan proyek pemerintah Kabupaten Badung. Pasar desa adat Pecatu memiliki fungsi sebagai tempat bertransaksi pedagang dan pembeli di desa adat Pecatu. Langkah-Langkah estimasi menggunakan BIM diawali membuat pemodelan struktur bangunan pasar desa adat Pecatu 3D. Pemodelan 3D dimulai dari pemodelan pondasi dilanjutkan dengan pemodelan sloof, kolom, balok, ring balok, dan atap baja dan kayu. Setelah pemodelan 3D selanjutnya dilakukan tahap estimasi menggunakan fasilitas menu quantity take off dari software Tekla Structure untuk mendapatkan volume masing-masing item struktur bangunan. Estimasi biaya dilakukan dengan cara mengkalikan volume item pekerjaan dengan harga satuan pekerjaan dengan fasilisitas software Microsoft Excel. Hasil dari estimasi biaya menggunakan BIM adalah Rp. 5.746.833.111,23 lebih rendah 1,88 % dari RAB existing.
The aim of the study was to determine the effect of installing different sizes of Welded Wire Fabric (WWF) as a concrete restraint on axial carrying capacity of hollow columns. WWF is used with a wire spacing of 12.2 times 12.2 mm, 19 times 19 mm, 25 times 25 mm, with a diameter of 0.7 mm. A hole of 1 inch in the column causes a decrease in compressive strength of the column of 5.62 percent, i.e., from compressive strength of 226.697 kg per square cm (specimen A) to its compressive strength 214, 065 kg per square cm (specimen B). The percentage increase in axial carrying capacity of the perforated column type C is 13.16 percent, W1 is 2.96 percent, W2 is 11.33 percent, W3 is 13.27 percent, SW1 is 0.51 percent, SW2 is 5.51 percent and SW3 is 9.08 percent. WWF is able to increase compressive strength of hollow concrete columns by W1 is 7.08 percent, W2 is 12.41 percent, W3 is 14.36 percent, SW1 is 4.53 percent, SW2 is 9.73 percent and SW3 is 14.59 percent.
Pada jaman dahulu pemakaian material batu padas di Bali pada umumnya terbatas hanya untuk bangunan suci dan untuk keperluan perumahan bangsawan/ keraton. Namun dengan perkembangan jaman seiring dengan berkembang pesatnya sektor kepariwisataan menyebabkan pemakaian batu padas semakin luas penggunaannya baik untuk kantor, sekolah, tempat bisnis maupun untuk akomodasi kepariwisataan. Kondisi ini membawa konsekwensi terhadap meningkatnya permintaan terhadap material batu padas dari waktu ke waktu. Kondisi lain lagi penambangan batu padas yang berlokasi di sepanjang alur daerah aliran sungai Oos diyakini memiliki kwalitas material terbaik di Bali dilihat dari tekstur, warna dan kekuatan materialnya. Permasalahan mulai timbul dimana permintaan batu padas yang meningkat tidak diikuti dengan penyediaan yang memadadi karena persediaan di alam cenderung tetap bahkan mulai berkurang. Kondisi yang ada saat ini menunjukkan bahwa kegiatan penambangan batu padas tersebut telah mulai menimbulkan kerusakan terhadap sungai. Dari penelitian pendahuluan yang dilakukan di Desa Lodtunduh Kecamatan Ubud Kabupaten Gianyar menunjukkan bahwa pengambilan batu padas mulai menunjukkan perubahan yang sangat besar terhadap lingkungan di sekitarnya dilihat dari jumlah material yang diambil, kedalaman penggalian, penurunan kalitas air, kebisingan suara serta berkurangnya kapasitas sungai. Kondisi ini membawa konsekwensi terhadap beberapa hal negatif seperti alur sungai yang mulai mengalami perubahan serta daerah sekitar aliran sungai yang tidak lagi memperhatikan aspek keamanan serta estetika lingkungan. Kwalitas air sungai yang menurun memberi dampak yang tidak bagus terhadap sungai serta terancamnya daerah tebing di sekitar sungai yang berpotensi longsor. Penelitian ini memakai metode deskriftif kwantitatif dan kwalitatif dengan hasil yang diharapkan berupa suatu pola kebijakan penataan Tukad Oos yang komprehensif dan inovatif sehingga kerusakan sungai dapat dicegah. Hasil akhir dari penelitian ini adalah adanya suatu pola kebijakan dalam penambangan batu padas di daerah aliran sungai Oos sehingga kerusakan yang lebih besar bias dihindari.Kata Kunci: Sungai Oos, tambang batu padas , kerusakan sungai In ancient times the use of rock material in Bali in general was limited only to the sacred buildings and for the purposes of royal or palace housing. However, the development of the era along with the rapidly growing tourism sector led to the use of stone more widely or offices, schools, business places and for tourism accommodation. This condition brings consequences to the increasing demand for rock material over time. Another condition of stone rock mining located along the flow of the Oos river basin is believed to have the best material quality in Bali in terms of texture, color and material strength. Problems begin to arise where increasing demand for rocks is not accompanied by an adequate supply because the inventories in nature tend to remain even begin to decrease. Current conditions indicate that the rock mining activities have started to cause damage to the river. From preliminary research conducted in Lodtunduh Village, Ubud District, Gianyar Regency shows that rocks taking start to show a very big change to the surrounding environment seen from the amount of material taken, the depth of excavation, the decrease of water calm, the noise and the decrease in river capacity. This condition brings consequences to some negative things such as the flow of the river that began to change as well as the area around the river that no longer pay attention to safety aspects as well as environmental aesthetics. The quality of declining river water gives a bad impact on the river and the threat of cliff areas around the river that have the potential of landslides. This study uses quantitative and qualitative descriptive methods with the expected results in the form of a comprehensive and innovative Tukad settlement policy so that river damage can be prevented. The end result of this research is the existence of a policy pattern in rock mining in the Oos watershed area, so that greater damage can be avoided.Keywords: Oos river, rock mining, river damage
The implementation of the project from year to year is significantly improved on implementation aspects of cost, quality, and time, in order to manage the use of human resources to be realistic. Occupational health and safety in a company is often ignored especially for companies which are doing project developments. This also affects the occupational safety of the workers and occupational illness arisen after the projects have been implemented. So in running safe business, occupational health and safety management Systemshould be implemented consistently. The research was conducted in the project of Dialog Villa Petitenget, Cendrawasihstreet, Denpasar, with 15 workers as sample. The implementation of occupational health and safety management systemcan ease the workload of the workers of the structural finishing works of reinforced concrete columns. This is proved by analysis on the treatment group ((p-value< 0.05). This shows that the workloads felt by group P2 (group which implement occupational health and safety management System are lighter than the ones felt by group P1 (group which do not implement the system). The decrease in workload felt by group P2 is 4.2%. The implementation of occupational health and safety management system can increase work productivity on the construction project of reinforced concrete structure columns. This is proven by the productivity analysis result which shows that the productivity increase experienced by group P2 is 25% with significance level (p-value<0.05). Thus, the implementation of occupational health and safety management system on the structural finishing works of reinforced concrete columns is proven to be able to improve work productivity
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