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EVALUASI DAN PERENCANAAN GEOMETRIK JARINGAN JALAN DI DALAM UNIVERSITAS BRAWIJAYA MALANG Fambella, Bayu Chandra; Sulaksitaningrum, Roro; Arifin, M. Zainul; Bowoputro, Hendi
Jurnal Mahasiswa Jurusan Teknik Sipil Vol 1, No 3 (2014)
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (695.203 KB)

Universitas Brawijaya (UB) dengan area kampus seluas 2.203.948 m². Dari tahun ke tahun UB berkembang pesat, ditandai peningkatan jumlah dari mahasiswa UB serta pergerakan lalu lintas di dalam kampus UB, sehingga peningkatan kapasitas dari jalan harus dilakukan. Peningkatan kapasitas dari jalan dapat dilakukan dengan perbaikan geometrik. Survei topografi dilaksanakan untuk memperoleh data dengan menggunakan alat pemetaan berupa Total Stationing Tipe Topcon GTS 229. Program Autocad Land Dekstop 2009 digunakan untuk mengolah hasil dari survei topografi. Trase- trase yang telah terpilih pada jaringan jalan di dalam kampus Universitas Brawijaya tersebut adalah: Jalan dari gerbang KPRI sampai persimpangan tiga Kafetaria Teknik, Perencanaan akses jalan baru di area Himpunan Teknik Elektro, Persimpangan tiga Program Magister dan Doktor Fak Ekonomi, Persimpangan tiga Majid Raden Patah, Persimpangan tiga Samantha Krida, Bundaran UB, dan Persimpangan tiga Fakultas Kedokteran. Dari hasil analisis didapat bahwa terdapat dua lengkung horizontal pada trase jalan dari gerbang KPRI sampai persimpangan tiga Kafetaria Teknik tidak memenuhi standard.Untuk lengkung vertikal sudah memenuhi standard. Sedangkan untuk perpersimpangan yang ditinjau, semua sudah memenuhi standard. Pada bundaran lima kaki di UB, pada kaki persimpangan Widyaloka dan perpustakaan tidak memenuhi aspek radius masuk keluar dan pada kaki persimpangan Fakultas Kedokteran tidak memenuhi kebebasan pandang. Dari total 2 perpersimpanganan baru yang akan dibuat, pada persimpangan tiga kaki Elekto- FMIPA tidak memenuhi syarat manuver. Untuk itu disarankan untuk melakukan perbaikan Geometrik pada trase jalan terpilih, akses jalan baru, dan Bundaran UB. Kata Kunci : Geometrik, Alinyemen Horizontal, Alinyemen Vertikal, Persimpangan, Bundaran, Universitas Brawijaya

Behaviour of Rectangular Concrete Filled Tubes and Circular Concrete Filled Tubes under Axial Load Casita, Cintantya Budi; Sarassantika, I Putu Ellsa; Sulaksitaningrum, Roro
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.868

This paper presents the result behavior of two different type of Concrete Filled Tubes: Rectangular Concrete Filled Tubes (RCFT) and Circular Concrete Filled Tubes (CCFT). In this model, the column end is fixed and the axial load, Paxial, are applied to the column end. The amount of axial load is divided into 5 steps, which increasing continuously. The dimension of the column is 300x300x10 for RCFT and 300x10 for CCFT. As the results, stress distribution, load-deformation curve, load-stress curve, and weight calculation are compared. And it shows that the CCFT gives better performance than the RCFT.

Behaviour of Rectangular Concrete Filled Tubes and Circular Concrete Filled Tubes under Axial Load Cintantya Budi Casita; I Putu Ellsa Sarassantika; Roro Sulaksitaningrum
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.868

This paper presents the result behavior of two different type of Concrete Filled Tubes: Rectangular Concrete Filled Tubes (RCFT) and Circular Concrete Filled Tubes (CCFT). In this model, the column end is fixed and the axial load, Paxial, are applied to the column end. The amount of axial load is divided into 5 steps, which increasing continuously. The dimension of the column is 300x300x10 for RCFT and 300x10 for CCFT. As the results, stress distribution, load-deformation curve, load-stress curve, and weight calculation are compared. And it shows that the CCFT gives better performance than the RCFT.

Column structure strengthening with FRP (Fiber Reinforced Polymer) due to story addition I Wayan Maesa Andreasnata; I Nengah Sinarta; Ni Komang Armaeni; I. P. Ellsa Sarassantika; Dang Thanh Trung; Cintantya Budi Casita; Roro Sulaksitaningrum; Sudarno P. Tampubolon
Journal of Infrastructure Planning and Engineering (JIPE) Vol. 1 No. 1 (2022)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

This study focuses on strengthening scheme of an existing structure with added story. The addition of a new story increases gravitational loading, which affects the seismic and wind responses of the structure and, as a consequence, the loading combination. To ensure the structure’s capacity requirement, the strengthening scheme uses CFRP (Carbon Fiber Reinforced Polymer). In order to adequately define the structure's performance, a series of structural analyses were performed. The structure's state before and after story addition, subsequently the state after CFRP strengthening, were evaluated. It is demonstrated that the additional story to the structure causes an exceedance in internal forces; however, the strengthening with CFRP is sufficient to withstand these forces, proving that the strengthening scheme is effective and beneficial.

Perkembangan Teknologi Perangkat Disipasi Energi: Studi Literatur Roro Sulaksitaningrum
Jurnal Inovasi Teknologi dan Edukasi Teknik Vol. 1 No. 5 (2021)
Publisher : Universitas Ngeri Malang

Conventional structures absorb earthquake energy by yielding or failure of building materials. Energy dissipation devices are gaining popularity due to their ability to reduce the vibration response of structures subjected to dynamic loads. In recent decades, the development of energy dissipation device technology has continued to develop through research and direct applications in various types of civil buildings. From its development, energy dissipation devices can be grouped into several categories, starting from simple passive energy dissipation devices, semi- active energy dissipation devices that can increase efficiency with an adaptive system that is able to regulate damping behavior in real time, active energy dissipation devices that can increasing device capacity and intelligence, until hybrid energy dissipation devices which can increase overall reliability and structural efficiency. Struktur konvensional menyerap energi gempa dengan mengalami yielding atau kegagalan (failure) pada material bangunan. Perangkat disipasi energi (energy dissipation devices) mendapatkan popularitasnya dikarenakan kemampuannya dalam mengurangi respons getaran struktur dari struktural yang menerima berbagai jenis beban dinamis. Dalam beberapa dekade ini, perkembangan teknologi perangkat disipasi energi terus berkembang melalui berbagai riset dan aplikasi langsung dalam berbagai jenis bangunan sipil. Dari perkembangannya, perangkat disipasi energi dapat dikelompokkan menjadi beberapa kategori yaitu mulai dari perangkat disipasi energi pasif yang sederhana, perangkat disipasi energi semi-aktif yang mampu meningkatkan efisiensi dengan adanya sistem adaptif yang mampu mengatur perilaku peredam secara real time, perangkat disipasi energi aktif yang dapat meningkatkan kapasitas serta kecerdasan perangkat, hingga perangkat disipasi energi hibrid dimana dapat meningkatkan reliabilitas secara keseluruhan serta efisiensi struktural.

Experimental Study on The Capacity Of Z-Brace and X-Brace Cold-Formed Steel Wall Panel Cantikawati, Khristia Ningsih; Nindyawati, Nindyawati; Sulaksitaningrum, Roro
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 2 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i2.46357

Awaludin et al. created an anti-earthquake temporary shelter called RISBARI (Rumah Instan Baja Ringan/Light Steel Instant House), featuring an X-shaped strap-braced wall system using cold-formed steel as its primary structure. A similar temporary shelter (hunian sementara/huntara) was developed by Biru Bumi Hijau using Z-shaped wall bracing. While experimental research on the lateral strength of cold-formed steel wall panels with X-brace bracing, such as in RISBARI, has been conducted extensively, there has been limited in-depth study on Biru Bumi Hijau's huntara. Hence, this research aimed to identify the load capacity, stiffness, and ductility of both bracing configurations on lateral strength using cold-formed steel wall panels. This study used an experimental method through the monotonic static load in the laboratory. The test results were analyzed with One-way ANOVA. The load capacity, stiffness, and ductility of the X-brace panel increased by 201%, 4452%, and 105%, respectively. In contrast, the load capacity, stiffness, and ductility of the Z-brace panel increased by 201%, 4253%, and 156%. The bracing capacity on both was not directly proportional since both test objects had different configuration structures, although they had equalized length and width.

EXPERIMENTAL STUDY OF BEAM-COLUMN BENDING JOINTS WITH VARIOUS TYPES OF COLD ROLLED STEEL CONNECTIONS Roro Sulaksitaningrum, Setya Nugraha Pratama
BANGUNAN Vol 27, No 1.1 (2022): BANGUNAN EDISI MARET SPESIAL
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um071v27i1.12022p%p

Abstract: Cold rolled steel (cold formed steel) is very often used in the field of construction in today's era. However, in its use there are several drawbacks in the use of cold-formed steel, including a thin profile and problematic joints. Especially in the cantilever structure, it is necessary to analyze because the maximum deflection that occurs in the cantilever structure has a greater value than the simple supported beam structure. This study aims to study the effect of load on deflection in each type of cold rolled steel beam-column connection. The results of this study were obtained for the average maximum load that can be resisted at the screw connection variation is 1.26 kN, the screw-gusset plate connection is 1.43 kN, the screw-angle cleats connection is 1.92 kN, and at the screw-plate gusset-angle cleats connection is 1.60 kN and for the average value of the deflection that occurs at the maximum load on the screw connection is 28.67 mm, at the screw-plate gusset connection is 58.99 mm, the deflection at the screw-angle cleats connection is 22.44 mm, and the deflection at the screw-plate gusset-angle cleats connection is 49.67 mm. From these data, it was found that the experimental load-deflection value relationship did not reach the analytical load-deflection value. At the screw connection the damage that occurs is a tear in the connection plate (tear out), at the gusset plate connection the damage that occurs is the collapse of the gusset plate, at the screw-angle cleats connection the damage that occurs is 2, where the damage starts with a tear in the connection plate ( tear out) and followed by damage to the screw that was damaged pull out (pull out),Keywords: Flexural strength, deflection, failure pattern, cold rolled steel.

Comparison of Seismic Performance of L-Shaped Multi-Story Structures with Eccentrically Braced Frame and Friction Dampers Ramadhan, Andhika Daffa; Sulaksitaningrum, Roro; Sarassantika, I Putu Ellsa; Casita, Cintantya Budi
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 13 No 1 (2025): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (January 2025)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v13i1.10115

At the stage of planning the design of an asymmetric multi-story structure, the seismic performance of the structure must be considered, especially in earthquake prone areas. A structure can increase its capacity to withstand seismic loads by using an appropriate bracing system, such as eccentric bracing or utilizing seismic dampers like friction dampers. This research aims to compare five L-shaped multi-story steel structural models using Eccentrically Braced Frame and friction dampers. The models that focus of this research are model 1 (Moment Resisting Frame), model 2 (structure with diagonal EBF), model 3 (structure with inverted V EBF), model 4 (structure with diagonal friction damper), and model 5 (structure with chevron friction damper). To analyze each model from the elastic condition to the collapse condition, the ETABS software was used, which employs a nonlinear static pushover approach. As a result, all evaluated structural models meet the Immediate Occupancy performance level, which means that all five models can still function normally even after an earthquake occurs. Because of the higher ductility capacity and better inelastic behavior compared to MRF and EBF structures, structures with friction dampers are the best choice for use in steel structures.

Structural Performance Optimization of Multi-Story Steel Frames with Split-K EBF Bracing System Configuration Kusuma, Kadek Adyatma Teja; Nindyawati, Nindyawati; Sulaksitaningrum, Roro; Muhammad, Dzul Fikri
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 1 (2025): May
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i1.78431

Conventional steel frame structures tend to be susceptible to earthquakes, which can lead to significant economic and social losses. The earthquake disaster has motivated various technological exploration efforts to improve the seismic resilience of building structures. To strengthen the structure and prevent collapse, reducing the span length by adding bracing to the weak axis of the column proved effective. The addition of lateral stiffeners (bracing) to the elements of the frame structure is crucial in reducing lateral forces due to earthquakes in high-rise buildings. However, the researchers only focused on comparing the types of bracing used. Therefore, the purpose of this study is to optimize the structure of the steel frame multi-story building by innovating the configuration of bracing placement to match the composition of the building. To produce optimal results, the steel frame building model using bracing is varied in the placement of bracing with the middle model (BC1), the edge model (BC2), and the even model (BC3), so that the three models produce the effect of bracing placement on the building. The three building models will be analyzed using SAP200 to produce the performance of the steel frame building structure, including displacement, natural vibration periods, and base shear forces. From the overall analysis of the three models, it is shown that the evenness model (BC3) produces the most optimal structural performance. This is also shown by the fulfillment of all structural performance requirements based on the requirements of earthquake-resistant structures in SNI 1726-2019. The result of the buffer evenly provides a large displacement that occurs on the 3rd floor in the X direction which compared to other models has the smallest value, which is 20.13 mm. Based on the results of the analysis, it is known that the uniform model has the smallest natural vibration period value of 0.779 seconds in the X direction and has the largest dynamic shear force value in the X direction, which is 4823.74 kN. Therefore, it can be concluded that there is an effect of the placement of supports in steel frame multi-story buildings on the ability of the building structure with the even placement model (BC3) to produce the most optimal building design when compared to other building models.

Performance and Cost Comparison of Building Structures with SRPM and Shearwall in Seismic Dynamic Analysis Qur’ani, Difla Yustisiya; Sulaksitaningrum, Roro
Journal La Multiapp Vol. 6 No. 2 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i2.2046

As a country located on the Pacific Ring of Fire, Indonesia faces a high seismic risk, necessitating the design of earthquake-resistant buildings. This study evaluates the seismic performance and cost implications of multi-story U-shaped buildings using the Moment Resisting Frame System (SRPM) and shear walls. Four structural models with different configurations were analyzed using ETABS 22 for structural behavior and Microsoft Excel for cost estimation. The results indicate that models with shear walls exhibit better lateral stiffness, resulting in shorter fundamental periods and smaller interstory drifts. Model 2 demonstrated the best seismic resistance, making it the primary choice for earthquake-prone areas. However, the cost analysis showed that models without shear walls, particularly Model 4, were more economical. While shear walls increase initial construction costs, they offer long-term benefits by reducing potential structural damage and post-earthquake maintenance costs. This study provides valuable insights into balancing seismic safety and cost efficiency, assisting in the selection of the optimal structural system for earthquake-prone regions.

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