Claim Missing Document
Check
Articles

Found 22 Documents
Search

Analisis Elemen Hingga pada Balok Beton Bertulang dengan Perkuatan Wiremesh Novrian, Ridho Rizky; Alami, Fikri; Isneini, Mohd.
Jurnal Rekayasa Sipil dan Desain Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1537

Abstract

Penelitian ini membahas pemodelan balok beton bertulang yang diperkuat material wiremesh, yang dianalisis menggunakan finite element analysis (FEA) software. Pemodelan yang dilakukan mengacu pada studi eksperimental terdahulu. Balok yang dimodelkan hanya seperempat bagian untuk mempercepat proses analisis. Interaksi antara beton dan tulangan dimodelkan sebagai embedded region dan interaksi antara beton dan material wiremesh dimodelkan sebagai tie constraint. Persentase selisih antara pemodelan dan studi eksperimental untuk balok tanpa perkuatan adalah 0,76% untuk lendutan, 10,88% untuk regangan beton bagian atas, dan 13,70% untuk regangan beton bagian samping. Persentase selisih antara pemodelan dan studi eksperimental untuk balok dengan perkuatan wiremesh adalah 18,47% untuk lendutan, 2,09% untuk regangan beton bagian atas, dan untuk 1,93% regangan beton bagian samping. Adanya perbedaan nilai lendutan dan regangan secara umum disebabkan olehinteraksi antar permukaan komponen pada pemodelan dimodelkan terikat sempurna dan material beton pada pemodelan bersifat homogen.
Evaluasi Kinerja Struktur Gedung Bertingkat dengan Metode Analisis Time History (Studi Kasus: Apartemen Kingland Avenue Serpong) Putra, Mayka Purnama; Isneini, Mohd.; Noorhidana, Vera Agustriana
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 1 (2021): Edisi Maret 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i1.1720

Abstract

The high level of seismic activities in Indonesia causes the planning of building structures to be taken into account against the acceleration of the earthquake on the ground. Earthquake acceleration on the ground is an earthquake parameter that has a direct impact on the structure. Time history dynamic analysis can represent the dynamic properties of earthquake acceleration and structural response. So that this analysis method can provide a more complete description and information on structural responses. Earthquake recording data uses actual 3 earthquake accelerograms which are scaled with the planned earthquake response spectrum. From the results of this study, it is found that according to ATC-40 the building structure is included in the damage control category. Meanwhile, according to SNI 1726 (2019), the Chi-Chi and El Centro earthquakes met the requirements for deviation bricks between permit floors, but in the Kobe earthquake, the building structure did not meet the deviation requirements between permit floors on the 3rd floor.
Evaluasi Kinerja Struktur Bangunan Tinggi dengan Analisis Pushover Menggunakan Aplikasi Pemodelan Struktur (Studi Kasus: The Venetian Tower) Asmara, Kabul Budi; Isneini, Mohd.; D.W.S.B.U, Chatarina Niken
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 1 (2021): Edisi Maret 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i1.1721

Abstract

The Venetian Tower is one of the apartments with a height of 116.7 m that belongs to the categoryof risk II. To maintain the safety of its residents, the building must provide optimal performance.Pushover analysis is one of the methods used to analyze earthquake loads to determine thebehavior of building collapses. The aims of research to determine the level of structuralperformance, collapse patterns, and capacity of beams and columns.Based on the results of pushover analysis, obtained the value of the roof displacement 629.178 mmin the x direction and 759.87 mm in the y direction. The structure of Venetian Tower is at theperformance level of Immediate Occupancy, if the earthquake occurred on the scale of MMI VIIIor 6 S.R. The ductility level of the building structure is partial ductile, where the value of ductileratio is 1.0778 in the x direction and 1.2131 in the y direction. The collapse mechanism of thestructure indicates the mechanism of strong column weak beam, where the plastic hinges occurs inthe beam first.The beams reviewed using SNI 2847:2019 are safe against shear forces but not safe againstbending moments and torque. The cross-section of the columns reviewed meets the requirementsof style, geometry, and reinforcement ratio in accordance with SNI 2847:2019.
Analisis Struktur Gedung Bertingkat Rendah Akibat Pengaruh Beban Gempa Dengan Metode Riwayat Waktu Karima, Fadila Amelia; Isneini, Mohd.; Sebayang, Surya; Bayzoni, Bayzoni
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2061

Abstract

Bangunan bertingkat merupakan bangunan yang rentan apabila terjadi gempa bumi dan berpotensi menimbulkan korban jiwa. Pergerakan tanah akibat terjadinya gempa bumi dapat menimbulkan getaran dan deformasi yang dapat merusak struktur bangunan. Analisis serta evaluasi perlu dilakukan untuk meminimalisir kejadian yang tidak diinginkan. Penelitian ini bertujuan untuk menganalisis struktur dalam memenuhi persyaratan keamanan berdasarkan SNI 1726:2019 dengan tinjauan simpangan antar tingkat dan ATC-40 yang ditinjau berdasarkan maximum total drift. Analisis struktur yang dilakukan menggunakan metode riwayat waktu dengan bantuan software SAP2000. Model gedung dianalisis dengan menggunakan 5 (lima) akselerogram gempa masukan. Percepatan akselerogram yang digunakan sebagai gempa masukan perlu diskalakan terlebih dahulu terhadap taraf gempa rencana sesuai objek penelitian. Dari hasil penelitian ini, didapatkan bahwa akibat pengaruh gempa masukan Imperial Valley, Kobe, Kocaeli, Northridge, dan San Fernando, simpangan antar tingkat yang terjadi masih dalam kategori aman karena tidak melebihi simpangan antar tingkat izin yaitu 48,4615 mm. Gedung termasuk dalam taraf kinerja Immediate Occupancy (IO) berdasarkan ATC-40, nilai maximum total drift berada dibawah batas 0,01.
Analisis Kinerja Struktur Gedung Bertingkat Terhadap Beban Gempa Dengan Metode Pushover Analysis (Studi Kasus: Gedung Rawat Inap Non – Bedah Rumah Sakit Umum Daerah Dr. H. Abdul Moeloek) Firdha, Risty Amelia; Isneini, Mohd.; Husni, Hasti Riakara; Widyawati, Ratna
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2201

Abstract

AbstractThe condition of the tectonic arrangement is so complex that the Indonesian territory becomes an active seismic area with a high frequency of earthquakes. Considering that earthquakes can cause casualties and damages to infrastructure, it is necessary to analyze the structure of the building using the right method. This study aims to analyze the structure in needed to fulfill the safety requirements based on SNI 1726:2019 with the interstory drift and ATC-40 which is observed based on the maximum total drift and see the mechanism of the collapse that occurs. Structural analysis was carried out using the pushover anaysis method added with a structural analysis program. From the analysis results, the displacement values obtained by the ATC-40 method are 63,939 mm in the x – direction and 85,299 mm in the y – direction. The performance level generated based on this method is immediate occupancy where the structural and non-structural elements experience minimum damage so that the building remains safe for reuse. The structure collapse mechanism shows the concept of a strong column weak beam mechanism. The interstory drift that occurs is still in the safe category because it does not exceed the interstory drift, which is 42 mm. Key words:pushover analysis, performance level, failure mechanism, interstory drift. AbstrakKondisi tatanan tektonik yang begitu komplek menyebabkan wilayah Indonesia menjadi kawasan seismik aktif dengan frekuensi kegempaan yang tinggi. Mengingat gempa bumi dapat mengakibatkan korban jiwa dan hancurnya infrastruktur sehingga diperlukan analisis terhadap struktur bangunan tersebut dengan menggunakan metode yang tepat. Penelitian ini bertujuan untuk menganalisis struktur dalam memenuhi persyaratan keamanan berdasarkan SNI 1726:2019 dengan tinjauan simpangan antar tingkat dan ATC-40 yang ditinjau berdasarkan maximum total drift serta melihat mekanisme keruntuhan yang terjadi. Analisis struktur yang dilakukan menggunakan metode pushover analysis dengan bantuan program analisis struktur. Dari hasil, didapatkan nilai displacement dengan metode ATC-40 sebesar 63,939 mm arah – x dan 85,299 mm arah – y. Level kinerja yang dihasilkan adalah immediate occupancy dimana elemen struktural dan non-struktural mengalami kerusakan minimum sehingga bangunan tetap aman digunakan kembali. Mekanisme keruntuhan struktur menunjukkan konsep mekanisme strong column – weak beam. Simpangan antar tingkat yang terjadi masih dalam kategori aman karena tidak melebihi simpangan antar tingkat izin yaitu 42 mm. Kata kunci: analisis pushover, level kinera, mekanisme keruntuhan, simpangan antar tingkat.
Analisis Perbandingan Pengaruh Campuran Kawat Bendrat dan Serat Baja pada Self Compacting Concrete (SCC) Anggraeni, Sylvia Dewi; Noorhidana, Vera Agustriana; Irianti, Laksmi; Isneini, Mohd.
Jurnal Rekayasa Sipil dan Desain Vol. 10 No. 2 (2022): Edisi Juni 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i2.2599

Abstract

Self compacting concrete (SCC) is a concrete innovation that is carried out to overcome problems during casting that does not require manual compaction even in hard-to-reach places such as tight reinforcement. In this study, 3D Dramix steel fibers and bendrat wire were used as a mixture in SCC with volume fractions of 0%, 0.5%, 1%, 1.5%. The addition of this fiber aims to determine the effect of the two fibers on SCC on compressive strength, split tensile strength and flexural tensile strength. The sample in this study was a cylinder with a diameter of 150 mm and a height of 300 mm for testing the compressive strength and split tensile strength while the flexural tensile strength used a beam sample with a size of 100x100x400 mm. All samples of these specimens were tested when the concrete was 28 days old. The increase in the value of compressive strength, split tensile strength and flexural strength at the addition of 1.5% steel fiber were 26.39%, 64.71% and 111.88% respectively for concrete with 0% fiber. While the increase in compressive strength, split tensile strength and flexural strength with the addition of 1.5% bendrat wire was 20.31%, 60.74% and 76.18% for concrete with 0% fiber, respectively.
Evaluasi Kinerja Struktur Bangunan Bertingkat Akibat Gempa Berdasarkan Simpangan Dengan Analisis Respon Spektrum Satria, Fungky Andi; Isneini, Mohd.; Kusnadi, Andi; Widyawati, Ratna
Jurnal Rekayasa Sipil dan Desain Vol. 10 No. 3 (2022): Edisi September 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i3.2660

Abstract

Apartemen Kingland Avenue Serpong adalah gedung bertingkat tinggi yang berada di Jalan Raya Serpong KM. 08 Pakulonan, Serpong Utara, Tangerang Selatan. Gedung ini terdiri dari 2 Basement, 24 lantai, dan atap dengan elevasi ±116,70 m. Sebuah gedung harus memiliki kinerja yang optimal termasuk dalam menahan gempa sehingga keselamatan penghuni lebih terjamin. Analisis respon spektrum adalah salah satu metode yang umum digunakan dalam menganalisis beban gempa untuk mengetahui kinerja bangunan berdasarkan nilai simpangannya. Penelitian ini bertujuan untuk mengetahui level kinerja struktur dan simpangan antar tingkat.Berdasarkan hasil analisis respon spektrum secara keseluruhan nilai simpangan antar tingkat berada dibawah simpangan antar tingkat izin, dengan nilai rasio simpangan total maksimum arah x sebesar 0,0016 dan 0,0020 pada arah y. Berdasarkan ATC-40, Level kinerja struktur Apartemen Kingland Avenue Serpong berada pada level kinerja Immediate Occupancy, dengan dampak sedikit kerusakan struktural yang terjadi, kapasitas sistem penahan gaya vertikal dan lateral pada struktur masih sama dengan kondisi dimana gempa belum terjadi, sehingga bangunan aman dan dapat langsung dipakai.
Pengaruh komposisi penambahan serat polypropylene terhadap kuat tekan dan kuat lentur self compacting mortar (SCM) Suma, Damas Novalda; Noorhidana, Vera Agustriana; sebayang, surya; Isneini, Mohd.
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 1 (2023): Edisi Maret 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i1.3019

Abstract

AbstractSelf compacting mortar is a mortar which is able to flow under its own weight and completely fill the formwork without the need for external compaction, while maintaining its homogeneity. This study aims to determine the effect of variations in the addition of polypropylene fiber to the compressive strength and flexural strength of self compacting mortar (SCM), as well as to determine the optimum variation of the addition of polypropylene fiber in mixed mortar. In this study, the test specimens were made with a water-cement factor of 0.4 and the ratio between cement and fine aggregate was 1:2.5 and the addition of 2% superplasticizer by weight of cement and the addition of polypropylene fibers with variations of 0%, 0.04%, 0.06%, 0.08%, 0.1% of the volume of the mortar test object. Tests were carried out on specimens aged 28 days. The results showed that the compressive strength of SCM experienced an optimum increase in the addition of 0.04% polypropylene fiber which was 34.81 MPa with an increase percentage of 14.07% of mortar without fiber, while the flexural strength of SCM increased with increasing variations of polypropylene fiber until the increase The optimum variation occurred at 0.1% polypropylene fiber, namely 11.72 MPa with a percentage increase of 26.05% from mortar without fiber. Key words : polypropylene fiber, superplasticizer, compressive strength, flexural strength.
Analisis Variasi Layout Shearwall Dengan SNI 1726-2019 Terhadap Perilaku Bangunan Bertingkat (Studi Kasus: Gedung Pelayanan Publik Satu Atap Bandar Lampung) Setiawan, Andi; Isneini, Mohd.; Noorhidana, Vera Agustriana; Husni, Hasti Riakara
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3171

Abstract

Earthquake resistant buildings are not designed only by strengthening the resistance of the structure, but are also designed to reduce earthquake forces. One of the structural reinforcement elements that can reduce earthquake forces is shearwall. The variation of shearwall layout will have a different effect on the performance level of the structure. This study aims to determine the performance level of the structure with a variety of shearwall layouts in a building structure model using the pushover analysis method. Determining the level of structural performance using pushover analysis is carried out using the help of structural analysis programs based on SNI 1726-2019, SNI 1727-2020, SNI 2847-2019 and ATC-40. From the research results it was found that the structural performance level according to ATC-40 (1996), for model 1 and model 6 were included in the damage control category, while for model 2, model 3, model 4 and model 5 were included in the immediate occupancy category. Placement of shearwall which has the optimum value according to ATC-40 for the X direction occurs in model 2 with the shearwall installed in an L shape which is placed near the center of mass of the building. Whereas in the Y direction it occurs in model 3 with the shearwall installed in an L shape which is placed away from the center of mass of the building. Key words : shearwall, model, structure performance level, pushover analysis.
Studi Perbandingan Beban Gempa Pada Gedung Rawat Inap Non Bedah RSUD Dr. H. Abdul Moeloek, Bandar Lampung Dengan Analisis Respon Spektrum Sesuai SNI 1726:2012 dan SNI 1726:2019 Hania Cipta, Ade Permata; Isneini, Mohd.; Husni, Hasti Riakara; Kusnadi, Andi
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3189

Abstract

The rapidly growing population is directly proportional to the increasing amount of land use, especially in urban areas, one of which is in the city of Bandar Lampung. The construction of vertical structures or high-rise building structures is an option in overcoming the limited land. However, high-rise building structures are considered to be risky to lateral loads such as earthquake loads, so that in planning, earthquake loads must be considered.This study aims to determine differences in response to the earthquake acceleration spectrum in the City of Bandar Lampung, especially the Non-Surgical Inpatient Building at Dr. H. Abdul Moeloek based on SNI 1726:2012 and SNI 1726:2019. Based on the results of this study, it was found that due to the influence of the earthquake the input spectrum response was in accordance with SNI 1726:2012 and SNI 1726:2019, the base shear force due to the earthquake spectrum response for SNI 1726:2012 was 12900.4864 kN and SNI 1726:2019 was 14931.0787 kN . Interstory drift between levels that occur in the structure are still in the safe category because they do not exceed the story drift allowable levels, 48.4615 mm.