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Abstrak :
Studying about cable stayed bridge become trend in the last few years. Since the improvement of the material technology and the need of longer bridge so the cable stayed bridge become more important in the last few years. Since the span become longer, so the structure will become more flexible and external load such are traffic, wind, rain and earthquake become more significant to the structure. When the displacement of the deck will increase, it will make uncomforting for human. Many scientists and engineers try to make a control of cable stayed bridge, so that the response will become safety and good for human comfort also. In this study we try to simulate the model from experiment to the behavior of the cable stayed bridge itself. We also try to control the response of the structure. This control that we have done must be realistic and easy to use. In fact with computer simulation we can do such sophisticated control, but the main problem if it's not applicable the control that we use become useless, otherwise it will be dangerous also if we get a result in reality far from out simulation. So in this study we do simple control to cable stayed bridge, and do some test that could be realistic in the reality. The sag of the cable is big and it will make a non linear effect. We do some analysis of cable stayed bridge in ANSYS 5.5.3 and do control simulation in SIMULINK by catching the static non linear result from ANSYS 5.5.3. The simulation that we done here to see the effectives of the control in many cases. We can be sure that the control is good if we get a good solution with the control of the structure.

Abstrak :
Studi analisis ini merupakan suatu kegiatan untuk menganalisis dan menghitung kekuatan tegangan tendon dan besar beban ekternal dari lingkungan untuk menghindari terjadinya failure pada perencanaan dan perancangan TLP agar mendapatkan hasil yang optimal serta bangunan dapat bertahan dalam jangka waktu 100 tahun (lifetime design). Guna mencapai tujuan yang dimaksud, harus dilakukan analisis terhadap pembebanan pada struktur TLP sendiri, beban angin, arus, jenis soil, dan beban ombak yang diderita TLP dalam kondisi kritis yaitu pada kondisi badai 100 tahunan di tempat operasional. Adapun hasil analisis ini menyatakan bahwa kekuatan tegangan tendon pada TLP yaitu 239.105.642,12 N/m2 dan hal ini sesuai dengan standar sehingga mampu diterapkan di laut dalam Wilayah Timur Kalimantan, Indonesia.

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This analysis study is an activity to analyze and calculate about the tendon tensile strength of Tension Leg Platform (TLP) and the value of external load to avoid a failure in planning and designing it in order to obtain optimal results, and this building can survive within period 100 years (lifetime design). To achieve this intended goal, should be analyzed internal load on the structure, wind load, currents load, soil type, and wave load in critical condition (100 years storm condition) of operational place. The result of this analysis states the tendon tensile strength is 239.105.642,12 N/m2, it shall be appropriate with the standards an regulations, so the TLP can be applied for deep water on Eastern Region of Kalimantan, Indonesia.

Abstrak :
ABSTRAK
Studi analisis ini merupakan suatu kegiatan untuk menganalisis dan menghitung kekuatan struktur bangunan dan besar beban ekternal dari lingkungan untuk menghindari terjadinya fatigue failure pada perencanaan dan perancangan Bangunan Offshore Aquaculture agar mendapatkan hasil yang optimal serta bangunan dapat bertahan dalam kurun waktu lifetime design. Guna mencapai tujuan yang dimaksud, harus dilakukan analisis terhadap pembebanan pada struktur Offshore Aquaculture sendiri, yaitu beban angin, beban arus, beban ombak dan gaya tegangan tali pada mooring yang diderita Offshore Aquaculture dalam keadaan kondisi di tempat operasional, sehingga dari nilai stress yang didapatkan dari hasil analisis secara numerik, akan didapatkan nilai Fatigue Life untuk keseluruhan struktur. Adapun hasil analisis ini menyatakan bahwa pada saat keadaan badai, gaya total yang bekerja pada struktur adalah 10508.16 kN, tegangan total mooring lines pada struktur yaitu 122.21 kN, dan kekuatan tegangan struktur yang didapatkan adalah sekitar 116.97 MPa. Hasil studi analisis ini sudah sesuai dengan standar sehingga mampu diterapkan di laut dalam Wilayah ZEE Pantai Barat Sumatra, Indonesia.

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ABSTRACT
This analysis study is an activity to analyze and calculate the strength of the building structure and the environment external load to avoid fatigue failure in planning and designing the Offshore Aquaculture Building. The analysis is being conducted to obtain optimal results, so the building can survive its lifetime design period. To achieve the intended purpose, an analysis of the loading of the Offshore Aquaculture structure such as the wind load, current load, wave load, and total tension of mooring lines afflicted in Offshore Aquaculture. This analysis shall be performed in the operational location, so that as the value of maximum stress is obtained from numerical analysis, Fatigue Life for the whole structure could be calculated. The results of this analysis indicate that during storm conditions, the total force acting on the structure is 10508.16 kN, the total tension of mooring lines in the structure is 122.21 kN, and the structural strength of the structure is approximately 116.97 MPa. The results of this analysis study are all according to the standards, so that it can be applied in the deep sea ZEE region of West Shore of Sumatra, Indonesia.