ROMADON, AGUNG (2022) STUDI EVALUASI SEISMIK STRUKTUR ATAS GEDUNG PERKULIAHAN EKSISTING DI WILAYAH JAKARTA SELATAN DENGAN UMUR BANGUNAN 20 TAHUN. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Indonesia is a country prone to earthquakes that can cause various losses, including loss of life due to falling debris from buildings. Therefore it is necessary to evaluate the seismic structure of the building. Seismic evaluation of existing buildings is different from the provisions for planning new buildings, with references to ACI 369.1-17 and ASCE 41-17. Then to determine the behavior of the cross-section of the element, an assessment of the moment & capacity of the cross-sectional curvature is carried out using XTRACT software. The results of the non-linear static analysis were obtained for the X direction monitored displacement of 352.143 mm and base force of 14688.32 kN at step 7 and Y direction monitored displacement of 404.616mm and base force of 16176.40 kN at step 8. Performance level Design Basis Earthquake ( MCE) = 8385.1826 and Maximum Considered Earthquake (MCE) = 12577.8 kN for the X direction. and for the Y direction. Performance Level Design Basis Earthquake (MCE) = 8221.1082 and Maximum Considered Earthquake (MCE) = 12331.86 kN . The drift value shows the performance level according to ATC-40 for the X direction with the maximum total deviation value = 0.012 and the maximum inelastic deviation = 0.010 then the structure includes the level of damage control (DO). for the Y direction with the maximum total deviation value = 0.013 and the maximum inelastic deviation = 0.011 then the structure includes the level of damage control (DO). Indonesia merupakan negara rawan bencana gempa bumi yang dapat menimbulkan berbagai kerugian diantaranya korban jiwa akibat tertimpa reruntuhan bangunan. Maka dari itu dibutuhkan evaluasi seismik struktur Gedung. Evaluais seismik bangunan eksisting berbeda dengan ketentuan untuk perencanaan bangunan baru, dengan referensi ACI 369.1-17 dan ASCE 41-17. Kemudian untuk mengetahui prilaku penampang elemen, dilakukan assesmen momen & kapasitas kurvatur penampang dengan software XTRACT. Hasil dari analisis non linear static didapatkan untuk arah X monitored displacement 352,143 mm dan base force 14688,32 kN pada step ke 7 dan arah Y monitored displacement 404,616mm dan base force 16176,40 kN pada step ke 8. Level performance Design Basis Earthquake (MCE) = 8385,1826 dan Maximum Considered Earthquake (MCE) = 12577,8 kN untuk arah X. dan untuk arah Y Level performance Design Basis Earthquake (MCE) = 8221,1082 dan Maximum Considered Earthquake (MCE) = 12331,86 kN. Nilai drift menunjukan level kinerja sesuai ATC-40 untuk arah X dengan nilai simpangan total maksimum = 0,012 dan simpangan inelastic maksimum = 0,010 maka struktur termasuk level damage control (DO). untuk arah Y dengan nilai simpangan total maksimum = 0,013 dan simpangan inelastic maksimum = 0,011 maka struktur termasuk level damage control (DO).
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