KAJIAN PERMASALAHAN GETARAN PADA PELAT DAN BALOK BETON BERTULANG DI GEDUNG E FAKULTAS TEKNIK UNIVERSITAS LAMPUNG
| Main Author: | SILSILA JANA FIRDASA SEMBIRING, 1615011051 |
|---|---|
| Format: | Bachelors NonPeerReviewed Book Report |
| Terbitan: |
FAKULTAS TEKNIK
, 2020
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| Subjects: | |
| Online Access: |
http://digilib.unila.ac.id/63398/1/ABSTRAK.pdf http://digilib.unila.ac.id/63398/3/SKRIPSI%20FULL.pdf http://digilib.unila.ac.id/63398/2/SKRIPSI%20FULL%20TANPA%20PEMBAHASAN.pdf http://digilib.unila.ac.id/63398/ |
Daftar Isi:
- Perencanaan suatu bangunan memiliki beberapa kriteria yang perlu diperhatikan diantaranya adalah kekakuan, kekuatan, kestabilan, kelenturan dan keekonomisan.Ada satu kriteria yang seringkaliterlupakan dalam perencanaan suatu bangunan, yaitu masalah getaran yang sangat berdampakterhadap kenyamanan penghuni bangunan itu sendiri.Analisis ini dikhususkan pada pelat dan balok beton bertulang banguan Gedung E Fakultas Teknik Universitas Lampung yang sudah berdiri kurang lebih selama 2 dekade. Lokasi tempat penelitian ini berada di aula gedung tersebut yaitu di ruangan E.21 yang sering digunakan untuk acara- acara besar seperti rapat, pelatihan, seminar dan juga kuliah umum. Metode yang dilakukan dalam penelitian ini yaitu metode eksperimental dan metode numerik.Metode eksperimental sendiri mengunakan alat berupa hammertest,Ultrasonic Pulse Velocity (UPV) dan accelerometer sedangkan pada metode numerik menggunakan aplikasi SAP 2000 v.14.0.0. Untuk perhitungan mengacu pada peraturan ISO 2631-2: 2003 dan Steel Design Guide 11th Series “Floor Vibration Due to Human Activity” Hasil dari pengambilan data dilapangan dengan menggunakan accelerometer didapatkan frekuensi sebesar 1,953 Hz dengan akselerasi 0,263 m/s2. Pada perhitungan dengan menggunakan SAP 2000 v.14.0.0 hasil frekuensi yang didapatkan sebesar 7,078142 Hz dan akselerasi sebesar 0,001005 m/s2. Frekuensi dalam perhitungan numerik masuk kedalam spesifikasi yang telah ditentukan dalamISO 2631-2, 2003 dan akselerasi yang didapat lebih besar 0,5% dari gravitasi. BJ 37 IWF 350 mm x 175 mm meningkatkan frekuensi vibrasi dari 7,078142 Hz -7,3351 Hz sebesar 3,630% dan akselerasidari 0,001005 - 0,0009177 m/s2sebesar 8,6865%. Kata kunci: Balok, Pelat, Getaran, Frekuensi dan Akselerasi. ABSTRAK The planning of a building has some criterias that need detailed attention which are the stiffness, strength, stability, flexibility and economical aspect. But there is one criteria that often be forgotten by the building planner which is the vibration aspect that could strongly causes inconvenience for the building users. This research was done by doing detailed identification to the reinforced concrete of plate and beam in Building E of Engineering Faculty, Lampung University that had been constructed in this more or less than 20 decades. The research was located in the Room E.21 as the hall of the building that often be used as the meeting, seminar, public class and training room. The research was done by using experimental and numerical method. The experimental method used some tools such as hammer test, Ultrasonic Pulse Velocity (UPV) and accelerator. Hence, the numerical method used SAP 2000 v.14.14.0.0. The data analysis was formulated by using ISO 2631-2: 2003 and Steel Design Guide 11th Series “Floor Vibration Due To Human Activity” as the references. The result was based on the accelerometer, the frequency of the building was 1,953 Hz and the acceleration was 0,263 m/s2. Based on the SAP 2000 v.14.14.0.0 calculation, the building frequency was 7,078142 Hz and the acceleration was 0,001005 m/s2. The different results between those two methods were caused by unsatisfying building quality that caused the difference of result between those two methods. The building frequency fitted the specification attached on ISO 2631-2: 2003 but the acceleration was bigger 0,5% than the gravitation. The adding of BJ 37 IWF 350 mm x 175 mm could enhance the vibration frequency from 7,078142-7,3351 Hz as many as 3,630% and the acceleration from 0,001005-0,0009177 m/s2 as many as 8,6865%. Key words: Beam, Plate, Vibration, Frequency, Acceleration.