EVALUASI KAPASITAS DUKUNG DAN NILAI PCN RUNWAY UTARA SISTEM CAKAR AYAM BANDAR UDARA SOEKARNO-HATTA DENGAN PERMODELAN ELEMEN HINGGA (Studi Kasus: Untuk Dilewati oleh Pesawat B777-300ER)
| Main Authors: | , Taqia Rahman, , Prof. Dr. Ir. Hary Christady Hardiyatmo, M.Eng., DEA. |
|---|---|
| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2014
|
| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/130891/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=71324 |
Daftar Isi:
- Air transportation need in Indonesia is growed very rapidly in the last 10 years. This requires better infrastructure in air transportation. PT. Garuda Indonesia as a provider of air transport, in 2013 planned to operate a new type of aircraft: B777-300ER in MTOW condition. This plan faced a major obstacle, because the bearing capacity of North Runway of Soekarno-Hatta International Airport (SHIA) is supposed not strong enough to be used by the aircraft. SHIA with subgrade category D claimed to have PCN 120, while the B777-300ER aircraft in MTOW condition requires runway PCN at least 132. Evaluation of the bearing capacity of SHIA is necessary to be done to prove the claims of the PCN number of North Runway Soekarno-Hatta, considering that no evaluation has been done over 25 years since it built. Evaluation is done by modeling runway Soekarno-Hatta using 3D Finite Element Method for �Sistem Cakar Ayam�, as the foundation was built in 1978. In this study simulated two models: (1) Model HWD load and (2) model of the Boeing B -777-300ER (MTOW). Both of these models simulate the effect of the load deflection response and torque. The first model is simulated for verification and validation of the model, after the first model is valid, the second model simulated to check whether the MTOW due to load on the concrete compressive stress and tensile stress in the reinforcing steel is still able to be supported by the material. If the bearing capacity of North Runway of SHIA is lower that the required bearing capacity for MTOW condition, then RTOW (Restricted Take Off Weight) load is modelled, to determine how much the maximum load (maximum allowable gross weight) which allowed for the Boeing B-777-300ER to take off on North Runway of SHIA. The maximum load is then converted into the number of ACN. The biggest ACN number is assigned to be the PCN of North Runway of SHIA. The results of the first model (HWD load) show that the deflection (mm) and moment (kNm/m�) response is approaching the HWD test results on the field, so it is valid to represent the behavior of �Sistem Cakar Ayam� in Nort Runway existing of SHIA. The second model (Boeing B-777-300ER) shows that for load MTOW (351 tons), the applied moment is 21.92 up to 22.38 KNM / m '. It is larger than the moment capacity (Mu) of North Runway of SHIA which is 19.35 KNM / m�. It can be concluded that North Runway of SHIA is not able to support the Boeing B-777-300ER load with MTOW condition. The model also show that RTOW load of Boeing B-777-300ER which is currently allowed to take off in North Runway of SHIA is 320 tons, and PCN is: 114/R/D/W/T. Keywords: Sistem Cakar Ayam, B777-300ER aircraft (MTOW), 3D Finite Element Method, Soekarno-Hatta Airport