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All Journal Jurnal Spektran MEDIA KOMUNIKASI TEKNIK SIPIL
Ida Bagus Dharma Giri
Program Studi Teknik Sipil, Fakutas Teknik, Universitas Udayana
Civil Engineering, Building, Construction & Architecture

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Analisis Numerik Perilaku Rangka Beton Bertulang dengan Dinding Pengisi Budiwati, Ida Ayu Made; Dharma Giri, Ida Bagus
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 25, Nomor 1, JULI 2019
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (648.022 KB) | DOI: 10.14710/mkts.v25i1.20960

Abstract

The behavior of reinforced concrete frame with infill wall (RDP) has been studied numerically by modeling the RDP structure using the LUSAS software. The results were compared to other researchers’ results that conducted laboratory test and used SAP programs. The results of analysis using SAP show that the proposed model that subjected to load up to the maximum limit show similar behavior to the laboratory tests results in which parameters such as secant modulus for concrete and wall materials based on graphs of stress-strain relationships and a reduction in moment of inertia due to the crack of beam-column are taken into account. The model using LUSAS did not adopt this method instead applied plastic elastic material and non-linear analysis. The results of the analysis are still not in proportional to the magnitude of the laboratory test results, but the behavior of the load and deflection indicates similar form. The analysis models show the maximum stress points that occur on the wall similar to that with the pattern of failure in laboratory testing. The maximum stress occurs at the opening corner and the beam column joint corner that is in line with the results of laboratory testing.
STUDI ANALITIKAL PERILAKU DAN KINERJA STRUKTUR RANGKA DINDING PENGISI (RDP) DENGAN VARIASI KETEBALAN DINDING Made Sukrawa; Ida Ayu Made Budiwati; Ida Bagus Dharma Giri; I Putu Agus Putra Wirawan
JURNAL SPEKTRAN Vol 8 No 2 (2020): VOL. 8 NO. 2, JULI 2020
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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Abstract

ABSTRAK Studi analitikal ini dilakukan untuk mengevaluasi efek dari ketebalan dinding pada struktur rangka dinding pengisi (RDP) sebagai struktur penahan beban gempa. Analisis perilaku dan kinerja struktur perlu dilakukan sehingga diperoleh struktur yang aman bagi penghuni bangunan jika terjadi gempa yang kuat. Metode pemodelan divalidasi terhadap hasil uji laboratorium peneliti lain. Hasil validasi menunjukkan bahwa kurva beban-simpangan dan tegangan model RDP menggunakan metode strat diagonal dan elemen shell, serta analisis statik pushover sudah mendekati hasil uji laboratorium. Metode pemodelan tersebut diaplikasikan pada model struktur gedung hotel 3 dan 5 lantai dan dianalisis linier dan nonlinier statik pushover menggunakan software SAP2000. Struktur gedung 3 dan 5 lantai dibuat dengan ketebalan dinding yang sama 150 mm setiap tingkat (M3TF dan M5TF) dan tebal yang bervariasi (M3TV dan M5TV). Ketebalan yang diperoleh pada struktur M3TV dari lantai atas hingga bawah yaitu 150 mm, 250 mm, 300 mm dan untuk struktur M5TV yaitu 150 mm, 200 mm, 250 mm, 300 mm, 350 mm. Hasil analisis menunjukkan bahwa model RDP dengan variasi ketebalan dinding memiliki perilaku dan kinerja yang lebih baik dibandingkan tanpa variasi ketebalan dinding baik 3 dan 5 lantai, dilihat dari perubahan kinerja struktur dari B-IO (dapat segera dihuni) menjadi B (operational level). Model M3TF dan M5TF mengalami sendi plastis pertama pada dinding lantai 1, sedangkan M3TV mengalami sendi plastis pertama pada balok lantai 1 dan M5TV mengalami sendi plastis pertama pada balok lantai 1 sampai 3. Hal ini menunjukkan model RDP dengan variasi ketebalan dinding terhindar dari kegagalan soft story, sehingga variasi ketebalan dinding sangat diperlukan.
PERKUATAN SEISMIK STRUKTUR RANGKA BETON BERTULANG MENGGUNAKAN BREISING BAJA TIPE X DAN V TERBALIK Made Sukrawa; Ida Bagus Dharma Giri; I Putu Deskarta; Made Hendra Prayoga
JURNAL SPEKTRAN Vol 4 No 2 (2016): Vol. 4, No. 2, Juli 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.065 KB) | DOI: 10.24843/SPEKTRAN.2016.v04.i02.p10

Abstract

Abstract: Analysis of reinforced concrete frame with steel braces has been done to compare the behavior of the open frame structure with reinforced concrete structure with steel braces. Three models of 2D open frame structure with 3, 4 and 5 floors were made and analyzed in SAP2000 v17 with intermediate detailing according to Indonesian Codes for Seismic Load (SNI 1726: 2002). 3-span frame structure with a span length of 6 m and level height of 3,5 m were designed according to SNI 1726: 2002, and then re-analyzed with special detailing according to New Indonesian Codes for Seismic Load (SNI 1726: 2012). After that, it was added with braces as seismic retrofitting. Two types of braces (X and concentric inverted V) were used in this study and analyzed with conventional analysis and stage construction analysis according to their stages of implementation. From the analysis results, several structure components that analyzed according to SNI 1726:2012 provitions were experience over-stressed. After retrofitted with steel braces, those components fulfill strength provition according to SNI 2847:2013 about structural concrete regulations for buildings. In addition to that, displacements that occurs on braced frame are smaller than displacements of the open frame structure with ratio of 0.08, 0.12, and 0.18 for X-brace frames with 3,4, and 5 storey and 0.07, 0.11, and 0.16 for inverted-V brace. With staged construction analysis, displacements of  X-braced frame structure increased by 14.38%, 13.62%, and 9.98% from the conventional analysis results for structure with 3, 4,and 5 storey. For structure with inverted-V brace, displacements increased by 15.83%, 14.29%, and 10.09%.
Co-Authors A.A. Ngurah Agung Angga Pradhana Dharma Putra Firman Hadi Suprapto Gusti Putu Satria Eka Pratama I Gede Adi Susila I Gede Gegiranang Wiryadi I Ketut Sudarsana I Putu Agus Putra Wirawan Ida Ayu Made Budiwati Made Hendra Prayoga Made Sukrawa Ni Made Ratih Nawangsari Ni Made Tutarani Putu Deskarta Putu Didik Sulistiana Putu Hendra Kusuma