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ANALISIS STRUKTUR BOX GIRDER JEMBATAN FLY OVER RAWA BUAYA SISI BARAT TERHADAP GEMPA Aditya Fajar Meidiansyah; M. Yanuar J. Purwanto; Muhammad Fauzan
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 1: April 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

The Rawabuaya flyover bridge is an option to overcome the traffic jam that often happens in the Rawabuaya area. It has an extremely vital function to disentangle the traffic congestion; therefore, the structure must be strong in holding the on-going load, specifically the seismic load. The seismic load is dangerous to a structure because it has period that causes the structure to repeatedly shaken. If the movements happened continually, the structure will collapse ― depending on how much earthquake load that is being loaded on the structure. Therefore, it is essential to conduct a structural analysis on the earthquake resistance level of the Rawabuaya flyover bridge based on the "Standar Perencanaan Ketahanan Gempa Untuk Struktur Bangunan Gedung dan Non-Gedung" RSNI 03-1726-2010 and "Peta Zonasi Gempa Indonesia 2010" to know further about the on-going deformation. This research was done thoroughly by recognizing the maximum forces in the combination of ultimate loads based on the most recent rules of encumbering, including the rules regarding the seismic load. The maximum forces in the combination of ultimate loads were compared with the forces' nominal values, especially those related to the seismic load. From the research, it was concluded that the values of the maximum forces in the combination of ultimate loads had the combined seismic load worked on the upper structure of box girder as well as on the structure beneath the pier of Rawabuaya flyover bridge with a maximum moment values of 800300.80 KNm applied to Pier P6B with the combination of the singular ultimate load, additional dead load, pre-stressed load, and “T” truck load. Impairment to the structure was found to happen if the combination of the ultimate load was forced to work continuously on the Rawabuaya flyover bridge. Meanwhile, the result of the compared maximum forces in the combination of ultimate load with the values of nominal forces indicated that the Rawabuaya flyover bridge had a large amount of seismic load with 10% difference. It meant that this structure was able to resist 90% of ultimate seismic load, which required the usage of reinforcements on the upper structure of box girder as well as on the structure beneath the pier to increase the concrete stress power and the tendon on the upper structure of box girder to increase the tensile of the concrete. Keywords: prestressed box girder, structural analysis, seismic load, force

Desain dan Analisis Struktur Bangunan Adat Sumatera Barat Terhadap Ketahanan Gempa Khairat Mantani; Muhammad Fauzan
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 1: April 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Indonesia is an archipelago with a high risk of earthquakes. Traditional houses in Indonesia are very varied, distinctive, and made of wood. Rumah gadang is one of the traditional houses and located in Minangkabau, West Sumatra. Rumah gadang in various regions are threatened due to natural disasters. The purpose of this research were design and analyze rumah gadang structures againts the durability on earthquake. The analysis used software SAP2000 v14 and Microsoft Excel. The main material was pheasant wood or senna siamea with density 800 kg/m3 and the modulus of elasticity 11000 MPa. Based on the calculation of maximum internal force, the combination of load and resistance factor design (LRFD) was greater than the combination of allowable stress design (ASD). The actual pressure was smaller than the ultimate pressure so structure was fulfill the strength standard. Buckling didn't occur when the ultimate pressure work. Maximum flex occur on the roof was 1.08 cm due to the hight of roof cross-section is smaller than the width off cross-section. Keywords: ASD, earthquake, LRFD, rumah gadang

Evaluasi Geometri dan Perlengkapan Jalan Lingkar Leuwiliang Bogor Dzaky Syifaurrahman; Muhammad Fauzan; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 2: Agustus 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Leuwiliang Ring Road had curve, slop and road equipment like signs, markers and street lighting that uncomfortable for drivers. The purpose of this research was to evaluate road geometric based on RSNI T-14-2004 and guidelines no. 038/TBM/1997 and road equipment based on guidelines no. 01/P/BNKT/1991 and SNI 7391: 2008 on Jalan Lingkar Leuwiliang. The results showed that design of geometry and equipment of this road did not conform to Standard. The speed limit used was 50 km/h. The free side area on the 4th curve was of 3 m less than Standard (3.04 m). Slopes of the road were more than 9% on segment 2 (14.21%), 4 (10.94%), 13 (9.01%), 14 (9.19%), 26 (9.20%), 27 (9.20%), 28 (9.49%), 29 (12.15%) and 30 (19.36%). There were no markers on this road then longitudinal line mark was designed on the road side. Dotted line marks were designed at Sta 0+000 to Sta 0+200 and longitudinal line mark were designed at Sta 0+200 to Sta 0+974.5 on the road divider. There were no street lighting on the 7th pole to the 22nd pole so the street lighting were designed on that poles using the lamp type SON 100W patch to the pole with height of 6 m from the road surface.Keywords : free side area, lamp, road, road markings, slope.

Analisis Perubahan Faktor Keamanan Lereng Akibat Hujan Achmad Hafidz; Muhammad Fauzan; Heriansyah Putra; Annisa Daniswara
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Infiltration causes a decrease in soil shear strength parameters. Decrease in soil shear strength parameters can cause landslides. Landslides often occur in Bogor Regency, one of the landslide locations is Puncak, Bogor. Landslides in Puncak, Bogor on 05 February 2018 at 09.20 WIB must have a safety factor 1.07. Changes in safety factors due to rainfall are observed from 03 February 2018 at 05.00 WIB until 05 February 2018 at 09.20 WIB. This research includes testing soil samples, pore water pressure analysis and slope stability analysis. The software used for this analysis is GeoStudio. The analysis results are the changes in safety factor due to rainfall. The safety factor on 03 February 2018 at 05.00 WIB is 1.602. Safety factor until 05 February 2018 at 03.40 WIB are still above 1.25. So, the slopes are still safe. The decline in safety factor continued until 1.070 due to a decrease in cohesion on 05 February 2018 at 09.20 WIB with cohesion on SW-SM soil and SM soil at 4.01 kPa and 9.18 kPa. So, the duration needed to change a safe slope to landslide is only 5 hours 40 minutes. This can occur because of the intensity of the rain on 05 February 2018 at 07.00 WIB and 08.00 WIB are 34.1 mm/hour and 34.9 mm/hour. Key words: cohesion, landslides, rainfall, safety factor

Analisis Kinerja Rencana Bundaran dengan Pendekatan Simulasi Mikro Tri Sudibyo; Erizal Erizal; Purwo Mahardi; Muhammad Fauzan; Heriansyah Putra
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Urban road network typically consists of many intersections which commonly lead to traffic problems. In relatively low traffic, a simple priority intersection will be sufficient and lead no traffic problem without necessarily implement traffic lights, roundabout or others. In an urban area where traffic demands are high, intersections need to be treated with an accurate traffic engineering approach. There are many different approaches to reduce the traffic problem in intersection including traffic light, roundabout, or interchange. Cimahpar Raya street and Indobaso intersections are urban areas in Bogor city with the high demand for transportation and often having a congestion problem in peak hour. The Office of Public Works and Spatial Planning (PUPR) of Bogor city plans to develop and change the Indobaso intersection to be a roundabout, while also increasing the lane width of the approaching roads. This study was conducted to assess the performance changes of the Indobaso intersection improvement by developing a traffic model of the intersection. The planned roundabout and lane width improvement significantly reduce the traffic delays by 90,07%, reduce travel time by 51,76%, improve average speed by 83,77%, and reduce the traffic density by 88,54% compared to the current condition of the intersection which lacks required lane road width and maneuver area.Key words: urban road, intersection, traffic model

Analisis Kekuatan Struktur Atas Jalan Layang terhadap Beban Gempa (Studi Kasus: 6 Ruas Tol Dalam Kota Jakarta Tahap 1 Seksi A) Aini Maryam Ridwan; Muhammad Fauzan; Sekar Mentari
Jurnal Teknik Sipil dan Lingkungan Vol. 5 No. 1: April 2020
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

The high potential earthquake in Indonesia made the earthquake an important factor in the planning of a building. The study aims to do the way of modeling, analyzing the inner style, displacement occurring in the current earthquake structure and knowing the vibration period and the stiffness of the structure. Research conducted in Kelapa Gading North Jakarta. Research using secondary data obtained from KSO Jaya Konstruksi-Adhikarya by using CSI Bridge. The flyover modeling is based on secondary data. The results show that 12 vibration modes may occur in the flyover structure. The largest period occurred in mode 1 that was equal to 0.84 sec which represented the behavior of the structure so that the total stiffness value of the structure was 275512.95 kN/m. Structures can be categorized as a flexible structure. Displacement is the structure of 92.5 mm and is still below the value of allowable displacement so it could be classified as the safe category. The force that occurs in the structure of the axial force, shear force, torsion, and flexure moment. Keywords: CSI Bridge, displacement, earthquake, flyover, force.

Analisis dan Desain Struktur Atas Hotel 10 Lantai di Kabupaten Bogor terhadap Beban Gempa: Analysis and Design of the Top Structure of a 10 Floor Hotel in Bogor Regency Against Earthquake Loads I Wayan Wirya Aristyana; Muhammad Fauzan
Jurnal Teknik Sipil dan Lingkungan Vol. 6 No. 1: April 2021
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.6.1.1-10

The type of soil at the location of the hotel building is a type of medium land (D). The applications used in this study are ETABS V16.1 and AutoCAD. Based on the PUSKIM website, the Ss and S1 Bogor City were 0.881 and 0.356, respectively. Based on the results of the analysis of the application ETABS V16.1 obtained fewer reinforcement design results than the existing reinforcement. The maximum nominal moment of the beam is 508.3 kNm while the ultimate moment is 498.4 kNm. The maximum nominal shear force of the beam is 565.9 kN while the ultimate shear force is 538.4 kN. The maximum nominal moment of the column is 1488.5 kNm while the maximum ultimate moment is 1478 kNm. The maximum nominal axial force of the column is 6291 kN while the maximum ultimate axial force is 6287 kN. The maximum nominal bending moment of the floor plate is 41.3 kNm while the maximum ultimate moment is 39.9 kNm. The maximum nominal shear force of the floor plate is 234.7 kN while the maximum ultimate shear force is 228.9 kN. The nominal shear force of shear wall is 8238.5 kN while the ultimate shear force is 8194.7 kN. Based on the internal forces, the building that has been built is in accordance with the plan so that it is safe to withstand earthquake loads.

Promoting Precipitation Technique using Bio-Chemical Grouting for Soil Liquefaction Prevention Heriansyah Putra; Hideaki Yasuhara; Naoki Kinoshita; Muhammad Fauzan
Civil Engineering Dimension Vol. 22 No. 1 (2020): MARCH 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

The applicability of bio-chemical grouting as the environmentally friendly and economically method for liquefaction remediation was evaluated. Several combinations of organic and in-organic precipitations methods were conducted to obtain the optimum grouting solution. Organic precipitation method employs a bio-agent of urease enzyme to dissociate urea into ammonium and carbonate ions. The produced carbonate ions are precipitated as calcite crystals in the presence of calcium ions. Meanwhile, the in-organic methods were performed using chemical compounds only, without the bio-agent. Unconfined compressive strength (UCS) tests were performed to evaluate the applicability of the grouting solutions for improving the soil strength. Grouting solution is injected into the prepared sand samples. The sand samples with a relative density of 50% were treated with one and two PV for 3-day curing times. The experimental results showed that the organic precipitation method produced the high precipitated amount and resulted in the significant improvement in the strength of the treated sand. The presence of the precipitated materials within the grains of soil generated the strength of 272 kPa. The results of this study have elucidated that the organic precipitation method composed of calcium chloride, magnesium sulfate, urea and enzyme of urease may be an alternative soil-improvement technique to prevent the liquefaction susceptibility.

Evaluasi Kerusakan Lapis Perkerasan Jalan dengan Metode Pavement Condition Index (PCI): Evaluation of Road Pavement Layer Damage using Pavement Condition Index (PCI) Method Rifqi Fauzi Dhiaulhaq; Muhammad Fauzan
Jurnal Teknik Sipil dan Lingkungan Vol. 7 No. 2: Agustus 2022
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.7.2.161-170

Jalan sangat dibutuhkan karena segala bentuk pergerakan terutama pergerakan transportasi darat memakai sistem jaringan transportasi yang ada. Pertumbuhan baik dari sisi ekonomi, perdagangan, serta sektor lain akan berkembang lebih dengan adanya keberadaan jalan. Penyebab kondisi jalan di Indonesia masih buruk yaitu karena pembangunan jalan yang tidak diimbangi dengan pemeliharaan yang baik. Berdasarkan data Badan Pusat Statistik Provinsi Jawa Barat tahun 2018 diketahui bahwa daerah Bogor memiliki jalan dengan kondisi rusak hingga rusak berat. Jalan Alternatif IPB merupakan jalur alternatif untuk menuju Kampus Institut Pertanian Bogor (IPB). Intensitas kendaraan yang cukup padat menyebabkan banyaknya kerusakan. Kerusakan ringan hingga berat terjadi di beberapa ruas jalan. Penelitian bertujuan untuk mengidentifikasi jenis kerusakan jalan, melakukan penilaian berdasarkan metode PCI, serta memberikan solusi perbaikan untuk setiap perkerasan jalan yang rusak pada Jalan Alternatif IPB. Penelitian dilakukan pada Jalan Alternatif IPB sepanjang 500 m dengan lebar perkerasan 4 m yang dibagi menjadi 10 section. Terdapat 6 jenis kerusakan, seperti kerusakan lubang, ambles, retak memanjang, tambalan, bahu turun, dan retak tepi. Nilai akhir PCI pada lokasi penelitian sebesar 69,4 sehingga masuk dalam kategori sedang. Solusi perbaikan untuk setiap kerusakan tidaklah sama. Penambalan permukaan dan penambalan seluruh kedalaman dapat digunakan untuk perbaikan semua jenis kerusakan, kecuali bahu turun. Bahu turun harus diperbaiki dengan perataan kembali serta bahu diurug. Micro surfacing digunakan untuk perbaikan ambles. Penutup retak digunakan untuk retak memanjang dan retak tepi.

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