Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
[ABSTRAK
Beban gempa merupakan salah satu beban yang harus diperhatikan dalam perancangan jembatan. Jembatan harus dirancang sedemikian hingga dapat memiliki kinerja yang optimal. Hal ini diukur dari parameter kekuatan serta daktilitas jembatan itu. Oleh karena itu, analisa yang mendalam hingga perilaku inelastis struktur jembatan perlu dilakukan. Dengan analisa non-linear pushover, perilaku inelastis jembatan akibat beban gempa rencana dapat diprediksi. Kemudian hasil analisa tersebut dapat menjadi acuan apakah jembatan tersebut sudah optimal atau memerlukan penanganan lebih lanjut seperti perkuatan struktur. Pada studi ini jembatan yang menjadi objek penelitian adalah jembatan cable-stayed di Maluku. Berdasarkan studi yang dilakukan, jembatan ini memiliki kekuatan yang memadai namun memiliki daktilitas yang cukup rendah. Hal ini terlihat dari besarnya beban ultimit yang dapat diterima serta besarnya displacement yang terjadi tepat sebelum jembatan mengalami kegagalan.

---

ABSTRACT
Earthquake load is one of the load that must be considered in the design of the bridge. The bridge should be designed so that can have an optimum performance. It is measured on the parameters of the strength and ductility of the bridge. Therefore, in-depth analysis of the inelastic behaviour of the structure of the bridge needs to be done. Inelastic behaviour of the bridge due to earthquake load can be predicted with non-linear pushover analysis. Then, the results of the analysis can be a reference to whether the bridge is optimum or require further treatment such as structure retrofitting. The bridge that becomes the object of this study is a cable-stayed bridge in Maluku. Based on study conducted, this bridge has adequate strength but has low ductility level. It is evident from the ultimate load that can be received and the amount of displacement that occurs just before the bridge failed., Earthquake load is one of the load that must be considered in the design of the bridge. The bridge should be designed so that can have an optimum performance. It is measured on the parameters of the strength and ductility of the bridge. Therefore, in-depth analysis of the inelastic behaviour of the structure of the bridge needs to be done. Inelastic behaviour of the bridge due to earthquake load can be predicted with non-linear pushover analysis. Then, the results of the analysis can be a reference to whether the bridge is optimum or require further treatment such as structure retrofitting. The bridge that becomes the object of this study is a cable-stayed bridge in Maluku. Based on study conducted, this bridge has adequate strength but has low ductility level. It is evident from the ultimate load that can be received and the amount of displacement that occurs just before the bridge failed.]

Abstrak :
ABSTRAKPerencanaan sebuah jembatan haruslah diperhitungkan dengan baik. Analisa gempa merupakan bagian yang cukup penting dalam proses perencanaan jembatan. Terlebih Indonesia termasuk ke dalam wilayah yang memiliki potensi gempa bumi yang besar. Gempa bumi besar yang mengguncang Indonesia beberapa tahun silam membuat diperlukannya peninjauan ulang terhadap peta gempa Indonesia. Hasilnya peta gempa Indonesia terbaru terkandung dalam RSNI 2833:201x. Sebelumnya dalam analisa gempa pada jembatan, digunakan peta gempa yang terkadung dalam SNI 2833:2008. Analisa gempa jembatan cable-stayed berdasarkan kedua peraturan tersebut perlu dilakukan untuk mengetahui pengaruh analisa gempa berdasarkan SNI 2833:2008 dan RSNI 2833:201x terhadap gaya dalam pada pylon serta pier dan reaksi pondasi jembatan cable-stayed di Ambon, Provinsi Maluku yang menjadi objek penelitian ini. Hasilnya, gaya dalam yang dihasilkan analisa gempa berdasarkan RSNI 2833:201x lebih besar dibanding SNI 2833:2008. Sedangankan untuk reaksi pondasi menunjukkan kebalikkannya.

---

ABSTRACT
A bridge design must be calculated properly. Seismic analysis is a fairly important part in the design process of the bridge. Moreover, Indonesia is located in the area that have a huge potential of earthquakes. The massive earthquake that happened a few years ago makes a review of the Indonesian seismic map is needed. The result is a lastest seismic map which contained in RSNI 2833:201 x. Before that, the bridge seismic analysis use seismic map contained in SNI 2833:2008. Seismic analysis of cable-stayed bridges based on both the regulation needs to be done to determine the effect of seismic analysis based on SNI 2833:2008 and RSNI 2833:201x to the internal forces in the pylon and pier and foundation reactions of cable-stayed bridge in Ambon, Maluku which became the object of the research. As a result, the internal forces generated by the seismic analysis based on RSNI 2833:201x are greater than the SNI 2833:2008. In the other hand, the foundation reactions shows the other way.