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Pemanfaatan Limbah Kerak Cangkang Sawit Terhadap Balok Beton Bertulang Mutu Tinggi Lissa Opirina; Budi Aulia; Mochammad Afifuddin
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 2, No 1 (2016): Jurnal Teknik Sipil Dan Teknologi Konstruksi
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (854.686 KB) | DOI: 10.35308/jts-utu.v2i1.333

Abstract

Pembangunan infrastruktur sipil seperti gedung dan jembatan masih sangat bergantung pada material beton. Perkembangan teknologi dan kemajuan dalam pembangunan infrastruktur menuntut kitauntuk terus mencari cara mendapatkan material yang berkualitas. Sementara itu ketersediaan material yang berasal dari sungai dan batuan alam semakin berkurang jumlahnya. Oleh karena itu perlu dilakukan penelitian lanjutan tentang penggunaan material pengganti tersebut. Penelitian ini bertujuan untuk menganalisis kapasitas lentur balok beton bertulang mutu tinggi dengan substitusi agregat kasar yaitu bongkahan kerak cangkang sawit yang merupakan limbah dari pengolahan pabrik kelapa sawit sebesar 40% dari volume agregat kasar. Pada penelitian ini diuji dua buah balok berukuran 15 x 30 x 220 cm, yaitu untuk substitusi agregat kasar sebanyak satu benda uji dan satu benda uji balok normal. Benda uji didisain untuk mengalami gagal lentur. Mutu baja (fy) yang digunakan untuk tulangan pokok sebesar 445,63 MPa dan tulangan geser sebesar  381,97 MPa, tulangan tarik yang digunakan berdiameter 15,8mm ulir, tulangan tekan diameter 11,9 mm ulir dan tulangan geser diameter 11,9 mm ulir. Nilai kuat tekan beton tanpa substitusi agregat (normal) yang didapat sebesar 60,652 MPa dengan FAS 0,30.  Hasil penelitian menunjukan bahwa kedua balok mengalami gagal lentur sesuai yang direncanakan. Kapasitas lentur balok normal yang dihasilkan sebesar 2,696. Lendutan maksimum pada BMT Cangkang Sawit Agregat Kasar (CSAK) dengan persentase besarnya lendutan terhadap BMT normal sebesar 112,057% dengan beban maksimum 208,570 kN. Perbandingan daktilitas balok BMT CSAK terhadap balok BMT normal sebesar 113,936%. Dapat disimpulkan bahwa substitusi agregat kasar dapat meningkatkan nilai lendutan dan daktilitas pada beton mutu tinggi.
ANALISIS PERLAKUAN JOINT BALOK KOLOM TERHADAP BEBAN SIKLIK DENGAN PENAMBAHAN SENGKANG PADA JOINT SESUAI SK SNI T-15-1991-03 Zardan Araby; Samsul Rizal; Mochammad Afifuddin; Abdullah Abdullah
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 4, No 2 (2021): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v4i2.18859

Abstract

Joint beam-columns are the main structural components that function to support other structural loads. The beam-column relationship area is a critical area that needs to be designed to be truly accurate so that it can dissipate energy properly well in the event of an earthquake happen. As a structural component with the role and function, column joint beams occupy important positions in the building. The ability of column joint beams to deform cyclic loads in the inelastic region provides a good structure, so as to minimize damage caused by earthquake shaking. The failure of column joint beams directly affects other structural components associated with it. The purpose of this study was to study the ability of building structures on concrete column beam joint elements to resist cyclic load with reinforcement reinforcement in accordance with SK SNI T-15-1991. Test specimens amounted to 1 (one) with a concrete quality of 19.17 MPa. The beam measuring 120 x 30 x 40 cm, column measuring 30 x 30 x 200 cm using reinforcement 8, 13.4 mm with a melting voltage (fy) 310,03 MPa and stirrup reinforcement Ø9.8-100 mm with melting stress (fy) 374,59 MPa. The test was carried out by giving a cyclic load to the end of the beam with 0.75 mm, 1.5 mm, 3 mm, 6 mm, 12 mm, 24 mm and monotonic loading, until the specimen was destroyed. The results achieved in this study are the use of reinforcement reinforcement according to SK SNI T-15-1991-03 the capacity of the cyclic load produced is higher, namely 6,97 tf (press) and 5.09 tf (tensile).
EVALUASI SISTEM PROTEKSI DALAM UPAYA PENCEGAHAN BAHAYA KEBAKARAN PADA BANGUNAN GEDUNG BADAN PENANGGULANGAN BENCANA ACEH Winardi Aramiko; Mochammad Afifuddin; Abdul Munir
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 4, No 1 (2021): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v4i1.19990

Abstract

The Aceh Disaster Management Agency office is a government office that provides services to the community in implementing disaster management activities in a planned, integrated and comprehensive manner in the pre-disaster, emergency response and post-disaster stages. One of the important things in preventing fire hazards is an emergency response plan, namely taking the form of action in the event of a fire emergency or "Emergency Response" as well as the provision of adequate fire fighting equipment for fire prevention as an effort to prevent people, buildings and their environment from being avoided. wider fire hazard. Seeing the importance of fire handling measures in the office building, it is necessary to conduct an “Emergency Response” assessment with the appropriate standards. The methodology used is the mix method combining qualitative and quantitative data with data collection, namely using secondary data in the form of a Banda Aceh City Map, BPBA Office Building Layout, literature, Permen PU, journals related to this research and primary data consisting of observations of conditions BPBA office, interview and questionnaire. The respondents used are all employees who work in the BPBA office totaling 115 people with a pilot study of 30 people. From the analysis of research data on 26 (twenty six) variables, there are 7 (seven) variables that score small or poorly and it can be interpreted that those variables need attention to make changes. A strategy that can be carried out based on the SWOT analysis is to form a fire preparedness team that is equipped with education and training in an integrated and comprehensive plan; prepare Standard Operating Procedures (SOP) for fire disaster management based on statutory regulations; perform routine and continuous building fire simulations; and strengthening other active protection systems, including making water hydrants, fire alarms and smoke detectors.
The Performance of Concentrically Braced Frames (CBF) in Chevron V Brace and Diagonal Configuration by Considering Various Frame Heights Arief Panjaitan; Purwandy Hasibuan; Rudiansyah Putra; Mochammad Afifuddin; Muhammad Haiqal; Fakhran Adian; Dwi Putroe Naulia; Asraf Hazid
Aceh International Journal of Science and Technology Vol 12, No 2 (2023): August 2023
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.12.2.30848

Abstract

Concentrically Braced Frame (CBF) is a structural system with high stiffness, so it is recommended to be implemented in earthquake-hazard areas. The stiffness in CBF is contributed by its diagonal component, which is called bracing. Bracing reduces lateral deformation on the frame system because of the earthquake and prevents heavy damage or failure of the structure. So far, several studies have been conducted. However, the effect of the frame height and the bracing configuration on the CBF performance has not yet been clarified. This study analytically investigated several models of CBF in Chevron V Brace and Diagonal configurations. Those models were prepared with different frame heights. The analyses were conducted by employing the cyclic load and considering yield displacement control in each model. The observation was emphasized on the load-displacement hysteresis curve, from which the performance of each model can be revealed. Three parameters of performance are evaluated: strength, stiffness, and dissipation energy. The analysis discovered that the Diagonal CBF performed better than the Chevron V Brace CBF by presenting a larger and more stable hysteresis curve, which is addressed to better energy dissipation. It is also discovered that reducing the frame height is suggested to enhance the CBF performance due to the earthquake