Studi Komparasi Terhadap Penggunaan ELastomeric Bearing Pad dan Lead Rubber Bearing Pada Proyek Pembangunan Flyover Djuanda

Sihombing, Indy Pedro Natanael (2024) Studi Komparasi Terhadap Penggunaan ELastomeric Bearing Pad dan Lead Rubber Bearing Pada Proyek Pembangunan Flyover Djuanda. Other thesis, Institut Teknologi Sepuuh Nopember.

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Abstract

Peningkatkan performa struktur akibat gempa kuat menjadi konsentrasi yang perlu dikembangkan mengingat dampak seismik gempa menghasilkan derajat kerusakan yang cukup parah. Untuk itu dikembangkan suatu teknik yang lebih efektif dan dapat diaplikasikan pada desain seismik struktur, sehingga kerusakan dapat dihindari, yaitu dengan penerapan Lead Rubber Rubber. Lead Rubber Bearing, bila diterapkan pada perletakan flyover dengan pier yang relatif tinggi akan berbeda dengan penerapan pada pier yang relatif pendek. Perbedaan itu ada pada kekakuan elastik yang dimilikinya. Hubungan paralel antara Lead Rubber Bearing sebagai bearing dengan pier adalah sama – sama berperan dalam menahan beban lateral pada struktur flyover, terutama beban gempa. Baik Lead Rubber Bearing maupun pier sejatinya mampu memberikan energi redaman dari kekakuan yang dimilikinya.
Pemodelan struktur pada software Midas Civil v2022 menggunakan line beam element pada fondasi, pier dan girder, plate element pada pilecap dan pierhead. Dalam desain Lead Rubber Bearing mengacu pada brosur Bridgestone. Metode analisis menggunakan respon spektra dan Time History guna mendapatkan gaya geser dasar pada struktur.Pembebanan yang dihitung terbagi tiga yaitu beban permanen, transien dan lingkungan. Desain Lead Rubber Bearing menghasilkan kapasitas dalam bentuk kurva histerisis. Sehingga dengan penggunaan Lead Rubber Bearing, struktur flyover menerima momen yang tereduksi, menerima periode lebih panjang dengan deformasi yang lebih besar, dan mereduksi gaya geser dasar menghasilkan reduksi dimensi fondasi, pilecap dan pier.
Hasil studi ini menunjukkan bahwa Lead Rubber Bearing lebih baik dari Elastomeric Bearing Pad dalam mereduksi momen, menerima deformasi, memperpanjang periode dan mereduksi gaya geser dasar fondasi arah longitudinal maupun transversal, yang juga secara tidak langsung berpengaruh ke gaya geser dasar antara pier dan pilecap.
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Improving the performance of structures against strong earthquakes is a critical area of focus, considering the significant seismic impacts that result in severe degrees of damage. Therefore, more effective techniques need to be developed and applied to seismic design of structures to prevent such damage.When applied to the foundation of a flyover with relatively tall piers, Lead Rubber Bearings will behave differently compared to their application on relatively short piers. The difference lies in their elastic stiffness. The parallel relationship between Lead Rubber Bearings as bearings and piers is that they both play a role in resisting lateral loads on the flyover structure, especially earthquake loads. Both Lead Rubber Bearings and piers essentially provide energy dissipation through their inherent stiffness.
The structural modeling in Midas Civil v2022 software involves using line beam elements for the foundation, piers, and girders, and plate elements for the pilecap and pier head. The design of Lead Rubber Bearings refers to the Bridgestone brochure. The analysis methods used include response spectrum and time history analysis to obtain the base shear force on the structure.
The calculated loads are categorized into three types: permanent loads, transient loads, and environmental loads. The design of the Lead Rubber Bearings results in a capacity represented in the form of hysteresis curves. Thus, by using Lead Rubber Bearings, it can support larger axial loads with reduced moments, accept longer periods with greater deformation, and reduce base shear forces, leading to a reduction in the dimensions of the foundation, pilecap, and piers.
This study shows that Lead Rubber Bearings outperform Elastomeric Bearing Pads in bearing axial loads, reducing moments, accommodating deformation, extending the period, and reducing base shear forces in both longitudinal and transverse directions, which also indirectly affects the base shear forces between the piers and the pilecaps.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Lead Rubber Bearing, Elastomeric Bearing Pad, respon spektra, gaya geser dasar, pier, pilecap dan fondasi. Lead Rubber Bearing, Elastomeric Bearing Pad, response spectrum, base shear force, pier, pilecap, and foundation.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA355 Vibration. T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TH Building construction > TH1095 Earthquakes and building
Divisions:	Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Indy Pedro Natanael Sihombing
Date Deposited:	26 Sep 2024 09:05
Last Modified:	26 Sep 2024 09:05
URI:	http://repository.its.ac.id/id/eprint/115696

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