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Analysis of Steel Plate Shear Wall Performance with Two Wall Openings Modification Khala, Christianto Credidi Septino; Suswanto, Budi
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1959.343 KB) | DOI: 10.12962/j23546026.y2019i1.5125

Abstract

Steel plate shear wall (SPSW) is one kind of steel earthquake resistant building structural stiffener that can dissipate the tremendous amount of quake energy, where the steel plate itself had been developed from years, and still in development. Ideally, SPSW is designed so all of its parts can absorb the energy of lateral force, seismic load for instance, through inelastic deformation. Because of that, the thickness of applied steel plate in a section of a building (a portal in this case) is determined by the shear force of the portal itself. In this research, experiment had been done using multiple applicable methods for the SPSW, where the use of it depends on the architect aspect and necessity. In this experiment, the specimen will be tested with some applicable lateral loading, where in the steel plate itself, there are two openings applied to the web plate. The result of the research shows some behavior changing of the dissipating energy throughout the steel plate, especially along the edge of the openings. Because of that fact, there are some performance degradation in the specimen, compared to the normal steel plate with stiffeners, which is 26.61% reduction of ultimate strength (624.01) kN at perforated specimen, compared to 850.24 kN at non-perforated specimen) and 11.5% reduction of dissipated energy
UJI LENTUR BALOK BETON BERTULANG BAJA RINGAN DENGAN SKEMA TULANGAN TUNGGAL Basyaruddin Basyaruddin; Christianto Credidi Septino Khala; Muhammad Syahrizal Muslimin; Andina Prima Putri
TERAS JURNAL Vol 11, No 1 (2021): Maret 2021
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v11i1.418

Abstract

Abstrak Dalam dunia konstruksi, balok beton bertulang menggunakan tulangan longitudinal agar dapat menahan tegangan tarik yang terjadi pada penampang beton tersebut dan tulangan longitudinal yang digunakan adalah baja tulangan (rebar reinforcement). Tegangan tarik yang dapat mencapai 420 Mpa merupakan alasan utama baja tulangan digunakan pada beton bertulang, namun, akibat perkembangan teknologi, terdapat material yang mempunyai tegangan tarik yang melebihi baja tulangan yaitu baja ringan. Baja ringan adalah baja canai dingin (light cold rolled) dengan kualitas tinggi yang bersifat ringan dan tipis, namun memiliki tegangan tarik yang melebihi baja tulangan biasa yaitu 550 Mpa, oleh karena itu, untuk mengetahui kapasitas lentur balok beton berbaja ringan maka dilakukan penelitian dengan memanfaatkan baja ringan sebagai tulangan longitudinal yang selanjutnya dilakukan uji lentur sesuai  SNI-4431-2011. Baja canai dingin yang digunakan adalah baja ringan tipe C (C75x0.75) dengan 3 skema benda uji. Skema pertama yaitu dengan memanfaatkan baja ringan secara utuh sedangkan skema kedua dan ketiga adalah hanya dengan memanfaatkan badan dari baja ringan tersebut sehingga masing-masing skema memiliki rasio penulangan sebesar 0.47%, 0.28%, dan 0.28%. Selain itu, beton bertulang biasa dengan rasio 0.63% turut diuji sebagai pembanding (skema 4). Hasil uji lentur menunjukkan bahwa skema 1 menunjukkan kuat lentur terbesar dari skema lainnya yaitu sebesar 7.48 Mpa. Selanjutnya, meskipun skema kedua dan ketiga memiliki rasio penulangan yang sama skema kedua memiliki kuat lentur 0.24 Mpa lebih besar dari skema ketiga yang bernilai 5.76 Mpa. Akhirnya, beton dengan tulangan biasa dengan rasio terbesar memiliki kuat lentur sebesar 5.06 Mpa. Kata kunci: Baja Ringan, Rasio Penulangan, Tulangan Longitudinal, Uji Lentur    Abstract In the world of construction, reinforced concrete beams generally use longitudinal reinforcement to withstand the tensile stress that occurs in the concrete section and the longitudinal reinforcement used is rebar reinforcement. The tensile stress that can reach 420 Mpa is the main reason reinforcing steel is used in reinforced concrete. However, due to technological developments, there is a material that has tensile stress that exceeds that of reinforcing steel, namely mild steel. Mild steel is light cold-rolled steel with high quality which is light and thin but has tensile stress that exceeds ordinary reinforcing steel, which is 550 Mpa. Therefore, to determine the flexural capacity of lightweight steel beams, research was carried out using mild steel as longitudinal reinforcement, which was then carried out by bending tests according to SNI-4431-2011. Cold rolled steel used is mild steel type C (C75x0.75) with 3 specimen schemes. The first scheme is to make full use of mild steel, while the second and third schemes are only to utilize the body of the mild steel so that each scheme has a reinforcement ratio of 0.47%, 0.28%, and 0.28%. Also, ordinary reinforced concrete with a ratio of 0.63% was also tested for comparison (fourth scheme). The flexural test results show that scheme 1 shows the largest flexural strength of the other schemes, namely 7.48 Mpa. Furthermore, although the second and third schemes have the same reinforcement ratio, the second scheme has a bending strength of 0.24 MPa which is greater than the third scheme which is 5.76 MPa. Finally, concrete with ordinary reinforcement with the largest ratio has a bending strength of 5.06 Mpa. Keywords: Bending Test, longitudinal reinforcement, Mild Steel, Reinforcement Ratio
SEISMIC PERFORMANCE ANALYSIS OF 10 STORIES REINFORCED CONCRETE BUILDING USING SPECTRUM RESPONSE AND TIME HISTORY METHODS Andina Prima Putri; M Ricky Reinaldy Afdar Fadilah; Christianto Credidi Septino Khala
Jurnal Infrastruktur Vol 7 No 2 (2021): Jurnal Infrastruktur
Publisher : Jurnal Infrastruktur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/infrastruktur.v7i2.2120

Abstract

Indonesia is one of the countries located in the most active technonic plate area on earth. These conditions make Indonesia prone to earthquakes. So that the consideration of the load due to earthquakes in structural planning is very important to minimize the impact. Therefore, analysis of the performance of the 10-story reinforced concrete building structure using the response spectrum method and time history aims to determine the basic values of shear, displacement, deviation, and structure performance based on ATC-40. The structural design uses the example of a 10-story reinforced concrete building located in Aceh. The loads refers to SNI 1726:2019 and SNI 1727:2020. The maximum base shear value obtained is 116357.777 kN. The maximum displacement value obtained is 363.841 mm. The drift value does not meet the requirements according to SNI 1726:2019 Article 7.12.1. The structural performance is IO (Immediate Occupancy). Because the drift value does not meet the requirements, a structure evaluation was carried out using the base isolator HDRB HH075X4S. The analysis results show that the base isolator can reduce the base shear value of the structure by up to 73%. The value of displacement value after structural evaluation is 877.394 mm with most of the deformation occurring in the isolation plane so that the structure deforms less and can reduce the drift between floors. The drift value after the evaluation of the structure has met the requirements so that the structure is safer. Structure performance after the same performance evaluation, namely IO (Immediate Occupancy).
ANALISIS KINERJA SEISMIK STRUKTUR 10 LANTAI BETON BERTULANG DENGAN METODE PUSHOVER ANALYSIS Andina Putri; Shandria Herdinata H; Christianto Credidi Septino Khala; Oryza Lhara Sari
Indonesian Journal Of Civil Engineering Education Vol 8, No 1 (2022): Indonesian Journal of Civil Engineering Education
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijcee.v8i1.64259

Abstract

Indonesia merupakan salah satu negara yang memiliki resiko gempa yang tinggi. Hal ini dikarenakan wilayah Indonesia yang berada pada jalur gempa Pasifik dan jalur gempa Asia. Pada tahun 2018 terjadi gempa dengan kekuatan besar yang berpusat di Palu dan getarannya terasa hingga ke Kalimantan Timur. Hal ini tentunya menunjukkan pentingnya evaluasi struktur gedung bertingkat terhadap gempa di wilayah Balikpapan. Pada tahun 2019 SNI 1726:2019 diterbitkan sebagai revisi dari SNI 1726:2012. Perubahan parameter dan peta gempa secara alami akan mengakibatkan perubahan kekuatan struktur terhadap beban gempa. Maka perlu dilakukan evaluasi kembali struktur Hotel Platinum menggunakan SNI 1726:2019 untuk mengantisipasi keruntuhan struktur akibat perubahan beban gempa yang terjadi. Tujuan dari penelitian ini adalah untuk mengetahui kinerja pada struktur Hotel Platinum agar dapat diketahui kinerja struktur tersebut jika mengalami beban gempa yang melebihi beban gempa yang direncanakan. Analisis pushover mengacu pada SNI 1726:2019 dan ATC-40. Beban yang digunakan mengacu pada SNI 1727:2013, PPIUG 1983 dan PPPURG 1987. Pada penelitian ini dilakukan pemodelan dan analisis struktur metode pushover dengan program bantu. Analisis dilakukan pada gempa Balikpapan sebagai lokasi eksisting. Hasil analisa pushover menghasilkan nilai gaya geser sebesar 12164,73 KN, displacement atap 6 cm, periode efektif 1,851 dan redaman efektif 5% untuk pushover pada gempa Balikpapan. Berdasarkan pengendalian SNI 1726: 2019, struktur memenuhi persyaratan geser dan simpangan maksimum sehingga struktur aman. Kriteria kinerja struktur berdasarkan ATC-40 adalah segera ditempati yaitu struktur tidak mengalami keruntuhan struktural atau non struktural dan bangunan dapat digunakan kembali.
Prediction of Soil Bearing Capacity in the Masterplan Area of the Kalimantan Institute of Technology based on GIS Dyah Wahyu Apriani; Dhea Safitri; Umar Mustofa; Christianto Credidi Septino Khala
U Karst Vol 6, No 2 (2022): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v6i2.3544

Abstract

Prediction of bearing capacity and soil type is a requirement for the safety of construction before planning a building construction. Therefore, it is necessary to research the distribution of bearing capacity and conical resistance to determine soil conditions in an area. Based on CPT data, this study mapped cone resistance distribution and soil-bearing capacity distribution in the ITK masterplan area. The analysis was carried out by reviewing the 40 cm pile foundation at 11 m. The analysis was carried out using the Kriging, IDW, and Spline with Barriers methods. The bearing capacity was analyzed using the Trofimankove method. The mapping of the carrying capacity using the three interpolation methods results in a Qall value of around 26,024 – 87,835 tons. The cone resistance mapping results using the three interpolation methods show that the soil consistent in the ITK masterplan area is stiff, very stiff and Hard with a qc value of around 16,0804 – 259,54 kg/cm2. The ITK masterplan area has a type of foundation soil, which is hard. The comparison results obtained from mapping the cone resistance and the carrying capacity of the three interpolation methods used, the value of the range of qc and Qall closest to the sample data used is the IDW method 
Analisis Kinerja Seismik Struktur 10 Lantai Beton Bertulang dengan Metode Pushover Analysis Andina Putri; Shandria Herdinata; Christianto Credidi Septino Khala; Oryza Lhara Sari
Indonesian Journal Of Civil Engineering Education Vol 8, No 1 (2022): Indonesian Journal of Civil Engineering Education
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijcee.v8i1.68037

Abstract

Abstrak:Indonesia yang berada pada jalur gempa Pasifik dan jalur gempa Asia memiliki resiko gempa yang tinggi. Pada tahun 2018 terjadi gempa dengan kekuatan besar yang berpusat di Palu dan getarannya terasa hingga ke Kalimantan Timur. Hal ini tentunya menunjukkan pentingnya evaluasi struktur gedung bertingkat terhadap gempa di wilayah Balikpapan. Tujuan dari penelitian ini adalah untuk mengetahui kinerja pada struktur Hotel Platinum di Balikpapan agar dapat diketahui kinerja struktur jika mengalami beban gempa yang melebihi beban gempa yang direncanakan. Analisis pushover mengacu pada SNI 1726:2019 dan ATC-40. Beban yang digunakan mengacu pada SNI 1727:2013, PPIUG 1983 dan PPPURG 1987. Pada penelitian ini dilakukan pemodelan dan analisis struktur metode pushover dengan program bantu. Analisis dilakukan pada gempa Balikpapan sebagai lokasi eksisting. Hasil analisa pushover menghasilkan nilai gaya geser sebesar 12164,73 KN, displacement atap 6 cm, periode efektif 1,851 dan redaman efektif 5% untuk pushover pada gempa Balikpapan. Berdasarkan pengendalian SNI 1726: 2019, struktur memenuhi persyaratan geser dan simpangan maksimum sehingga struktur aman. Kriteria kinerja struktur berdasarkan ATC-40 adalah segera ditempati yaitu struktur tidak mengalami keruntuhan struktural atau non struktural dan bangunan dapat digunakan kembali.Abstract:Indonesia, which is in the Pacific earthquake path and the Asian earthquake path, has a high earthquake risk even in Kalimantan, the island with the lowest earthquake risk level. The purpose of this study is to determind the performance of the Platinum Hotel structure located in Balikpapan, east Kalimantan, in order to know the performance of the structure if it is subjected to earthquake loads that exceed the planned earthquake load. Pushover analysis refers to SNI 1726: 2019 and ATC-40. The load used is referring to SNI 1727: 2013, PPIUG 1983 and PPPURG 1987. In this study, modeling and structure analysis of pushover methods with assistive programs was carried out. Analysis was carried out on the Balikpapan earthquake as the existing location. The results of the pushover analysis produced a shear force value of 12164.73 KN, a roof displacement of 6 cm, an effective period of 1.851 and an effective attenuation of 5% for a pushover in the Balikpapan earthquake. Based on the control of SNI 1726: 2019, the structure meets the maximum shear and deviation requirements so that the structure is safe. Structure performance criteria based on ATC-40 are immediate occupancy ie the structure does not experience structural or non-structural collapse and the building can be reused.
Studi Perbandingan Kinerja Struktur Gedung Eksisting Terhadap SNI 1726:2019 dan 1727:2020 Christianto Credidi Septino Khala; Basyaruddin Basyaruddin; Samuel Dharmawan
TERAS JURNAL Vol 12, No 2 (2022): Volume 12 Nomor 2, September 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i2.721

Abstract

Abstrak Seiring dengan perkembangan ilmu pengetahuan, teknologi, dan penilaiaan kelayakan Standar Nasional Indonesia terus mengalami pembaruan. Pembaruan meliputi perbaikan, perubahan koefisien, serta penambahan ataupun penyesuaiaan rumus perhitungan dengan menyesuaikan kondisi terkini, meskipun tidak signifikan namun hal tersebut harus dipahami dengan baik oleh para pelaku konstruksi sehingga tidak terjadi kesalahan dalam merencanakan atau mengevaluasi kinerja suatu struktur. Analisis perbandingan diperlukan untuk mengetahui pengaruh pembaruan SNI terhadap kinerja suatu konstruksi, pada analisis ini dilakukan studi perbandingan menggunakan model struktur apartemen 18 lantai yang berlokasi di Kota Tanggerang, struktur ini direncanakan menggunakan pedoman SNI perencanaan di tahun 2002 yang sudah tidak berlaku di tahun 2021, sehingga perlu dilakukan ctual terhadap beban ctual yang akan diterima oleh struktur tersebut. Analisis dilakukan dengan memodelkan ulang struktur dalam dua kondisi, pertama mengacu SNI Pembebanan terdahulu (SNI 03-1727-1989; 03-1726-2002) dan kondisi kedua mengacu SNI Pembebanan terbaru (SNI 1727:2020; 1726:2019). Hasil perbandingan didapatkan perubahan tingkat kinerja dari immediate occupancy menjadi damage control. Kata kunci: Pembaruan SNI, Studi Perbandingan Struktur Bangunan Bertingkat, dan Kinerja Struktur  Abstract Along with the development of science, technology, and feasibility assessment, SNI continue to experience updates. Updates include improvements, changes in coefficients, as well as additions or adjustments to calculation formulas by adjusting to current conditions, although they are not significant, they must be well understood by construction engineer so that there are no errors in planning or evaluating the performance of a structure. Comparative analysis is needed to determine the effect of updating SNI on the performance of a construction, in this analysis a comparative study was conducted using an 18-storey apartment structure model located in Tangerang City, this structure is planned to use the SNI planning guidelines in 2002 which are no longer valid in 2021, so that it is necessary to control the actual load to be received by the structure. The analysis was carried out by re-modelling the structure in two conditions, first referring to the previous SNI for loading (SNI 03-1727-1989; 03-1726-2002) and the second condition referring to the latest SNI for loading (SNI 1727:2020; 1726:2019). The results of the comparison show a change in the level of performance from immediate occupancy to damage control area. Keywords: SNI update, Comparative Study of Highrise Building, and Structural Performance
Prediction of Soil Bearing Capacity in the Masterplan Area of the Kalimantan Institute of Technology based on GIS Dyah Wahyu Apriani; Dhea Safitri; Umar Mustofa; Christianto Credidi Septino Khala
U Karst Vol. 6 No. 2 (2022): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v6i2.3544

Abstract

Prediction of bearing capacity and soil type is a requirement for the safety of construction before planning a building construction. Therefore, it is necessary to research the distribution of bearing capacity and conical resistance to determine soil conditions in an area. Based on CPT data, this study mapped cone resistance distribution and soil-bearing capacity distribution in the ITK masterplan area. The analysis was carried out by reviewing the 40 cm pile foundation at 11 m. The analysis was carried out using the Kriging, IDW, and Spline with Barriers methods. The bearing capacity was analyzed using the Trofimankove method. The mapping of the carrying capacity using the three interpolation methods results in a Qall value of around 26,024 – 87,835 tons. The cone resistance mapping results using the three interpolation methods show that the soil consistent in the ITK masterplan area is stiff, very stiff and Hard with a qc value of around 16,0804 – 259,54 kg/cm2. The ITK masterplan area has a type of foundation soil, which is hard. The comparison results obtained from mapping the cone resistance and the carrying capacity of the three interpolation methods used, the value of the range of qc and Qall closest to the sample data used is the IDW method 
EARTHQUAKE-RESISTANT HIGH RISE STEEL BUILDING STRUCTURE ANALYSIS WITH CHEVRON CONCENTRICALLY BRACE FRAME SYSTEM Andina Prima Putri; Yudha Buana Putra; Christianto Credidi Septino Khala; Basyaruddin
Jurnal Infrastruktur Vol 9 No 1 (2023): Jurnal Infrastruktur
Publisher : Jurnal Infrastruktur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/infrastruktur.v9i1.3726

Abstract

In construction world, there’re several changes with times. The cause of changes is connected to building construction cases such as the structure failing to bear the load. Earthquake and tsunami load have potentials to make building structure become a failure. Indonesia experienced a lot of earthquake and tsunami, because Indonesia is located on three big plates encounters which Eurasia, Indo-Australia, and Pacific Plate. Banten province is one of province that has experienced earthquake and tsunami. In record of 10 years, Banten has experienced 3 earthquakes and 1 tsunami. Because of that, there must be a study on the design of steel structure buildings in Banten that resist earthquake and tsunami. Purpose of the research is to get structure value of building design. Design was done by numeric analysist method based on updated Indonesian National Standard about steel building planning. The result of study are, the biggest beam dimension is WF 300x200x9x12. The biggest column dimension is KC 700x300x13x24. Using adhesive plate with 14 cm thickness. Bracing dimension is WF 350x350x12x19. Beam connection with the most bolts has 3 M12 bolts and weld thickness 6 mm. Column connection between column with same dimension is planned with the most bolts has 16 M24 bolts. Column connection between two different column dimension is planned with the most bolts has 6 M24 bolts and weld thickness 8 mm. The biggest plate dimension is 90x90 cm. Brace connection is planned to have 6 M24 bolts and weld thickness 10 mm. Bottom structure stand with the biggest pile cap with seven 400 mm spun piles. Dimension of the biggest pile cap is planned to be 2700x2700x1000 mm with bar D25-300 on both x and y directions. The biggest pedestal column is planned to be 1100x1100x1000 mm with 24 D25 longitudinal bars and ϕ13-200 transverse bar. The Biggest tie beam is planned to be 400x600 mm in dimension with 4 D22 longitudinal bars and ϕ10-200.
PEMBUATAN SITUS WEB URBAN TOURISM SEBAGAI TAHAPAN REBRANDING KELURAHAN SEPINGGAN BARU, BALIKPAPAN Christianto Credidi Septino Khala; Dyah Wahyu Apriani; Amalia Oktafina; Ramda Marizal; Al Aswad Janfari
Jurnal Pengabdian Kepada Masyarakat ITK (PIKAT) Vol. 2 No. 2 (2021): PIKAT : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (729.351 KB) | DOI: 10.35718/pikat.v2i2.409

Abstract

Pariwisata perkotaan sangat perlu dikembangkan sesuai dengan potensi yang dimiliki setiap kota di manapun tanpa terkecuali. Urban tourism, salah satu jenis pariwisata, merupakan wisata yang memanfaatkan segala potensi baik sumber daya alam maupun manusia sebagai daya tarik wisata. Namun, permasalahan yang terdapat pada Kelurahan Sepinggan Baru, Balikpapan Selatan, adalah belum optimalnya pengembangan pariwisata daerah tersebut, sehingga potensi maksimal pariwisatanya belum dapat tercapai. Oleh karena itu, diperlukan sebuah usaha untuk mengawali pengembangan pariwisata ini. Salah satu cara yang dapat digunakan ialah memperbaharui gambaran umum (rebranding) Kelurahan Sepinggan Baru melalui urban tourism. Salah satu langkah nyata dalam proses rebranding adalah pembuatan situs web (website) guna memudahkan wisatawan lokal maupun mancanegara mengetahui situs wisata yang cukup banyak yang ada di Kelurahan Sepinggan Baru. Website urban tourism merupakan media promosi dan informasi yang dapat dijangkau dengan mudah melalui internet oleh siapapun dan kapanpun. Kehadiran website ini merupakan upaya dalam melakukan rebranding Kelurahan Sepinggan Baru berbasis urban tourism yang dapat membantu pengembangan wisata kota yang ada.