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All Journal Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan JMTS: Jurnal Mitra Teknik Sipil Asian Journal of Social and Humanities
Soegiarso, Roesdiman
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice

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EVALUASI KINERJA STRUKTUR DUAL SYSTEM DENGAN BELT TRUSS Utomo, Dwi Prasetyo; Soegiarso, Roesdiman
Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Vol 5, No 2 (2021): Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmstkik.v5i2.8839

Abstract

In structural engineering applications, the limit of building deflection or interstory drift is an important issue. In high-rise buildings that are more than or equal to 60 floors in the current era, systems are used in the structure of the building. The function of the Belt Truss is to reduce the deflection that occurs in the building by converting the building's overturning moment into the axial force of the exterior column. The Belt Truss structure itself can use reinforced concrete structures and steel structures. Because the Belt Truss structure is an innovation in the world of structural engineering, the parameter values for earthquake loads are not listed in the applicable Building Planning Standards. The standard for earthquake-resistant building regulations requires the parameters of Response Modification Factor (R), Overstrength Factor (Ωo), and Deflection Magnification (Cd) for determining earthquake loads. Because the parameters on the Belt Truss structure are not listed in the Standard for Earthquake Resistant Building Regulations, a study of the earthquake load parameters on the Belt Truss structure was carried out. The method used in this research is a literature study using Pushover Load Analysis according to ATC - 40 and FEMA 356. Keywords: Belt Truss, Dual System; ATC – 40; FEMA 356; Response Modification Factor (R); Overstrength Factor (Ωo); and Deflection Magnification (Cd) AbstrakDalam aplikasi rekayasa struktur gedung, batasan defleksi bangunan atau interstory drift adalah masalah penting. Pada bangunan tinggi yang lebih dari atau sama dengan 60 lantai pada era sekarang sudah menggunakan sistem pada struktur bangunan tersebut. Fungsi dari Belt Truss tersebut berguna untuk mengurangi defleksi yang terjadi pada bangunan dengan mengkonvesi momen guling bangunan menjadi gaya aksial kolom eksterior. Struktur Belt Truss sendiri materialnya bisa menggunakan struktur beton bertulang dan struktur baja. Karena struktur Belt Truss merupakan inovasi pada dunia rekayasa struktur, maka nilai parameter beban gempa tidak tercantum pada Standar Peraturan Perencanaan Bangunan yang berlaku. Standart Peraturan Bangunan tahan gempa diperlukan parameter – parameter Faktor Modifikasi Respon (R), Faktor Kuat Lebih (Ωo), dan Perbesaran Defleksi (Cd) untuk penentuan beban gempa. Dikarenakan parameter pada struktur Belt Truss tidak tercantum pada Standar Peraturan Bangunan Tahan Gempa, maka dilakukan penelitian parameter-parameter beban gempa pada struktur Belt Truss tersebut. Metode yang digunakan dalam penelitian ini adalah studi literatur dengan menggunakan analisa Beban Dorong Pushover Analysis sesuai ATC - 40 dan FEMA 356.
PENGARUH PERKUATAN ELEMEN STRUKTUR TERHADAP KINERJA KEGEMPAAN PADA STRUKTUR BAJA DENGAN SISTEM RANGKA MOMEN KHUSUS Sulistiono, Dony; Soegiarso, Roesdiman
Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Vol. 8 No. 1 (2024): Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmstkik.v8i1.21184

Abstract

Based on BMKG released in 2019, the event during 1821-2019 is reported more than 350 earthquake and tsunami occurred in Indonesia. Therefore, the structural design according to seismic resisting system shall be strictly implemented by the engineer. One of some material that can be used and regulated by the code is hot-rolled steel material. Structural engineering application of steel structure has a flexibility to determine the position of beam-column rigid connection. Apart from its strength, steel material has adequate ductility in dissipating earthquake forces. The seismic-forces resisting system of this research uses steel special moment frames. The aim of this research is to analyze the structural performance using the major axis of wide flange column as a beam-column rigid joint whereas the minor axis of the column is only defined to resists the gravity loads. This research uses non-linear time history analysis with 11 matched ground motion and pushover analysis based on FEMA 440 dan ASCE 41-17. The early step hinges formed of pushover analysis of the beam components are strengthened and evaluated to obtain the effect on the structural performance. The performance criteria on this research uses FEMA 356. The result based on FEMA 440 and ASCE 41-17 method with beam component strengthening shows that the structure performance increases from Life Safety to Immediate Occupancy, however, the time history analysis result shows structural capacity enhancement but neither with its structure performance criteria is come under Immediate Occupancy.   Keywords: Steel Structure with Special Moment Frames; FEMA 440; ASCE 41-17; Non-Linear Analysis; Plastic Hinged; Beam Strengthening; FEMA 356; Life Safety; Immediate Occupancy. Abstrak Berdasarkan release oleh BMKG pada tahun 2019, selama rentang waktu tahun 1821-2018, tercatat lebih dari 350 gempa bumi dan tsunami pernah terjadi di wilayah Indonesia. Oleh karena itu penerapan desain struktur tahan gempa merupakan komponen penting untuk diperhatikan. Salah satu material struktur yang dapat digunakan dan sudah diatur dalam tata perencanaan struktur tahan gempa adalah material baja hot-rolled. Rekayasa bangunan struktur baja memiliki fleksibilitas dalam menentukan posisi sambungan balok-kolom rigid. Disamping ditinjau dari kekuatannya, material baja memiliki daktilitas yang baik dalam mendisipasi gaya gempa. Sistem struktur penahan gaya gempa pada penelitian ini menggunakan sistem struktur baja pemikul momen khusus. Tujuan dari penelitian ini adalah menganalisis performa bangunan dengan mengoptimalkan sumbu kuat kolom wide flange sebagai sambungan balok-kolom penahan gaya gempa sedangkan sambungan balok-kolom pada sumbu lemah penampang kolom hanya direncanakan untuk menahan beban gravitasi. Analisis yang digunakan pada penelitian ini yaitu analisis non-linear time history dengan 11 rekaman gerak tanah terskala dan analisis non-linear static pushover berdasarkan FEMA 440 dan ASCE 41-17. Komponen balok yang mengalami mekanisme sendi plastis pada Langkah awal analisis pushover diberikan penguatan dan dievaluasi untuk dinilai pengaruhnya terhadap performa struktur. Klasifikasi kriteria kinerja yang digunakan pada penelitian ini berdasarkan FEMA 356. Hasil analisis berdasarkan metode FEMA 440 dan ASCE 41-17 dengan memberikan perkuatan balok struktur diperoleh peningkatan performa struktur dari Life safety menjadi Immediate Occupancy, disamping itu berdasarkan analisis time history diperoleh peningkatan kapasitas struktur akan tetapi performa struktur tidak mengalami peningkatan yaitu berada pada level kinerja Immediate Occupancy.
ANALISIS ICMP MODIFIKASI TERHADAP NONLINEAR TIME HISTORY DAN PUSHOVER DALAM MODEL BANGUNAN 2-D MULTI STOREY Adiputro, Susanto Triyogo; Soegiarso, Roesdiman; Prabowo, Andy
JMTS: Jurnal Mitra Teknik Sipil Volume 7, Nomor 4, November 2024
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v7i4.25273

Abstract

Improved Concecutive Modal Pushover (ICMP) method is proposed to improve the conventional Pushover in estimating earthquake demands on tall buildings. This method accounts for inelastic material properties and interaction between vibration modes. The incremental displacement at the building roof used in each stage of the pushover analysis is modified based on the displacement contribution of each mode. This study proposes an improved of the existing ICMP method by modifying the vibration mode variations in the pushover analysis. The performance of the modified ICMP method is verified against a wide variety of modes to determine the lateral forces of various building conditions. The results obtained from the modified ICMP method are compared with the results from Nonlinear Response History Analysis (NLHRA), and conventional pushover analysis, as well as the original ICMP method. The comparison shows that the results obtained from the modified ICMP method with mode variation of S1 (100% M), S2 (90% M1 + 10% M2), and S3 (80% M1 + 20% M3), are closer than the original ICMP using 100% participation of modes 1, 2, and 3. The modified ICMP yields an underestimate results against the original ICMP in the context of displacement response by not more than 30% Abstrak Metode Improved Concecutive Modal Pushover (ICMP) diusulkan untuk meningkatkan Pushover konvensional dalam memperkirakan tuntutan gempa pada bangunan tinggi. ICMP menyumbang sifat struktural inelastik dan interaksi antara mode getaran. Perpindahan kenaikan diatap bangunan yang digunakan dalam setiap tahap analisis pushover dimodifikasi berdasarkan pada kontribusi perpindahan masing-masing mode. Kinerja prosedur Pengembangan ICMP yang diusulkan diverifikasi terhadap berbagai macam variasi mode untuk menentukan lateral force dari berbagai kondisi bangunan. Hasil yang diperoleh dari prosedur pengembangan ICMP dibandingkan dengan hasil dari Nonlinear Response History Analysis (NLHRA), analisis pushover konvensional, dan analisis ICMP. Perbandingan hasil ketiga metode menunjukkan kelebihan pengembangan ICMP variasi S1 (100% M) S2 (90%M1 + 10%M2) S3 (80%M1+20%M3), lebih mendekati dibandingkan proposi ICMP sebelumnya yang menggunakan 100% partisipasi mode 1, 2, dan 3. Hasil pengembangan ICMP juga memberikan hasil yang baik dengan rentang underestimate dibawah, terhadap ICMP pada konteks respons displacement tidak lebih dari 30%.
Development of Experimental Models on Floating Breakwaters Harapan Saragih, Hotma; Soegiarso, Roesdiman; Hamdhan, Indra Noer
Asian Journal of Social and Humanities Vol. 2 No. 4 (2023): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v2i4.232

Abstract

Indonesia is the largest archipelagic country in the world with a potential area consisting of 17,480 islands with a sea stretch of 5.8 million km2 and has the fourth longest coastline in the world at 95,181 km, has a very high level of risk of abrasion hazards, especially considering that more than 60% of Indonesians live in coastal areas. The main purpose of a floating breakwater is to protect an area against unwanted wave heights. One of the most important boundary requirements in port design is allowable downtime. This is a period of time when the port cannot fulfill its function so as to prevent the occurrence of unwanted things from the movement of ships. Downtime occurs when a certain wave height is exceeded, causing unwanted ship movements. This implies that the wave transmitted by the floating breakwater to the port determines the downtime. Of the 7 (seven) types that exist, the box type is taken for research because the box type is more effective and efficient in dampening waves. Then the type of box that is used as a test model is carried out with 2 (two) conditions. The test model to be studied is a floating pontoon with a mooring line and a floating pontoon tethered to a pile.
Expansion of Cross Necklace and Startail Fish Fins in Mechanically Stabilized Earth Walls On Red Soil Layer Karminto, Karminto; Soegiarso, Roesdiman; Hamdhan, Indra Noer
Asian Journal of Social and Humanities Vol. 2 No. 4 (2023): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v2i4.226

Abstract

Development in Indonesia is currently being actively carried out, especially development in the field of infrastructure, especially toll roads and bridges for opritnya, and due to development with limited Right Of Way (ROW) land, so that the oprit road body is not made slope with a certain slope, for that a construction that is not needed. For this reason, precast soil retaining walls are needed, generally precast soil retaining walls such as Mechanically Stabilized Earth Walls use geosynthetics that are not heat resistant and strip plates, where the interlocking strip plates between soils are less strong, in connection with this there are often failures of MSE Wall failures which are caused by these two factors and are influenced by hydrostatic water pressure and soil layers that are not suitable for construction take land left and right of the road. In connection with the above, it is necessary to have novelty Mechanically Stabilized Earth Walls with anchor strength where along the anchor there is a crossbar necklace and at the end there is a fish fin startail whose function is strong to resist shear and interlocking the ground is getting stronger.
STUDI RETROFIT DENGAN BRACING BAJA PADA BANGUNAN BERSEJARAH Khangora, Lady Zabrina; Soegiarso, Roesdiman
JMTS: Jurnal Mitra Teknik Sipil Volume 8, Nomor 4, November 2025
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v8i4.34535

Abstract

Historic buildings are an important part of cultural heritage that must be preserved. However, most of these buildings were constructed before the implementation of modern seismic design codes, making them highly vulnerable to earthquake loads. This study aims to evaluate the structural capacity of a historic building located in Jakarta and to propose a retrofit strategy using steel bracing elements, based on a performance-based seismic evaluation approach in accordance with ASCE/SEI 41-17. Seismic loads were determined based on acceleration maps and response spectra provided by PuSGeN. Structural analysis was performed using MIDAS GEN software, incorporating material degradation due to the building's age. The analysis was conducted using MIDAS GEN software, with material properties in the structural model adjusted to account for degradation due to the building’s age. The evaluation results indicate that the existing structure is unable to withstand the pseudo-seismic forces based on BSE-1E (capacity ratio greater than 1.0), and the maximum inter-story lateral displacement of 0.1655 m does not meet the allowable drift limit. Therefore, a retrofit strategy was implemented by adding diagonal and cross steel bracings with HB 300x300x10x15 profiles in specific structural zones. After retrofitting, the bracings carried approximately 31.25% of the total lateral force, demonstrating effective performance in resisting seismic loads. The retrofit significantly improved the seismic behavior of the structure, achieving a life safety performance level, with a maximum displacement of 0.0331 m, which remains below the allowable limit of 1%. Abstrak Bangunan bersejarah merupakan bagian penting dari warisan budaya yang perlu dilestarikan. Namun, sebagian besar bangunan tersebut dibangun sebelum adanya peraturan ketahanan gempa modern, sehingga memiliki kerentanan tinggi terhadap beban gempa. Studi ini bertujuan untuk mengevaluasi kapasitas struktur eksisting dari salah satu bangunan cagar budaya di Jakarta dan merancang strategi retrofit menggunakan elemen baja sebagai pengaku tambahan, dengan pendekatan seismik berbasis kinerja sesuai standar ASCE/SEI 41-17. Beban gempa berdasarkan peta percepatan dan respon spektrum untuk bangunan eksisting dari PuSGeN. Analisis dilakukan menggunakan perangkat lunak MIDAS GEN dengan material yang digunakan dalam model struktur mempertimbangkan penurunan mutu akibat usia bangunan. Hasil evaluasi menunjukkan bahwa struktur eksisting tidak mampu menahan gaya seismik pseudo berdasarkan BSE-1E (rasio kapasitas lebih dari 1,0) dan defleksi lateral antar tingkat maksimum yang terjadi adalah 0,1655 m sehingga tidak memenuhi batas simpangan antar tingkat yang ditentukan. Oleh karena itu, strategi retrofit dilakukan dengan menambahkan bracing baja dengan profil HB 300x300x10x15 secara diagonal dan melintang di zona struktural tertentu. Setelah retrofit, persentase gaya yang terjadi pada bracing sebesar 31,25% menunjukkan bahwa bracing sudah bekerja cukup efektif dalam menahan gaya lateral. Retrofit tersebut secara signifikan meningkatkan performa seismik struktur secara signifikan dan mampu mencapai tingkat kinerja life safety, di mana simpangan maksimum yang terjadi yaitu 0,0331 m dan masih berada di bawah batasan izin 1%.
Co-Authors Adiputro, Susanto Triyogo Andy Prabowo Dwi Prasetyo Utomo, Dwi Prasetyo Hamdhan, Indra Noer Harapan Saragih, Hotma Karminto, Karminto Khangora, Lady Zabrina Sulistiono, Dony