
Abstrak. Penggantian ring dengan ring-khusus-beralur akan meningkatkan kinerja sambungan baut pada pelat baja tipis, ditinjau di sisi kekuatan, kekakuan, dan daktilitasnya (Dewobroto, 2009). Untuk pemasangan sistem tersebut diperlukan gaya tekan awal agar pada pelat baja tipis terbentuk alur yang berkesesuaian dengan ring-khususberalur. Bagian tersebut dianggap sebagai mekanisme kunci dari sistem. Dari bagian pelat yang rusak, yang dianggap menentukan kekuatan sistem, terjadi di bagian pelat yang beralur (Dewobroto, 2009), yang letaknya jauh dari lubang baut. Kondisi itu memberi kesan, bahwa baut mutu tinggi yang ada, tidak berperan. Keberadaannya hanya untuk membentuk dan mempertahankan alur bersama-sama dengan ring-khusus-beralur. Jika demikian, apakah baut mutu tinggi masih diperlukan. Jika dapat diganti baut biasa tentu sistem sambungan akan lebih ekonomis. Untuk menjawab, dibuatlah penelitian empiris pengaruh pemakaian jenis baut : (AISC, 2010) baut mutu tinggi berprategang, dan (Dewobroto, 2009) baut biasa, terhadap kinerja sistem sambungan. Penelitian menunjukkan bahwa pemberian prategang dengan pengencangan baut adalah sangat penting. Itu hanya efektif jika digunakan baut mutu tinggi. Abstract. The washer replacement with a specially-grooved-washer will increase performance of steel sheets bolted connection system, in terms of strength, stiffness, and ductility (Dewobroto, 2009). To install the connection system, it needs an initial pressure to create a groove on the steel sheet that match with the special-groovedwasher. The grooved is regarded as a key mechanism of the system. According to the experimental data, the failure location of steel sheet, that is considered determining the connection strength, occurs in the grooved region (Dewobroto, 2009), that is far from the hole of the bolt. Therefore, the bolt does not appear to contribute directly to the collapse of the system. It looks only to establish and maintain the groove in the steel sheet. herefore, it raises the question, why the system should use high strength bolts. If it can be changed with the ordinary bolt, then the system will be more economical. To answer it, then made an experimental test to study the influence of : (AISC, 2010) pretension high strength bolt, and (Dewobroto, 2009) ordinary bolts, to the performance of the bolted connection system with a special-grooved-washer. The results show, a pretension is very important, and it can only be effective if used a high strength bolt.
Ring-khusus-beralur, Pretensioning, pretensioning, ring-khusus-beralur, Baut mutu tinggi, Baut biasa., baut biasa, TA1-2040, baut mutu tinggi, Engineering (General). Civil engineering (General)
Ring-khusus-beralur, Pretensioning, pretensioning, ring-khusus-beralur, Baut mutu tinggi, Baut biasa., baut biasa, TA1-2040, baut mutu tinggi, Engineering (General). Civil engineering (General)
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