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Journal : Astonjadro

EVALUASI STRUKTUR BANGUNAN RUKO AKIBAT PENAMBAHAN BEBAN ATAP BERUPA MINI TOWER Lutfi, Muhamad; Rusandi, Erwin
ASTONJADRO Vol. 8 No. 2 (2019): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v8i2.2790

Abstract

Bangunan Rumah Toko (RUKO) Indralaya merupakan bangunan eksisting yang hanya berfungsi untuk bangunan rumah tinggal dan perkantoran. Bangunan ini berlokasi di Jalan Lintas Palembang-Prabumulih KM. 32 RT. 10 Lingkungan V Kelurahan Timbangan Kecamatan Indralaya Utara Kabupaten Ogan Ilir Sumatera Selatan. Bangunan eksisting tersebut direncanakan akan menambah beban berupa Mini Tower 25M dengan dudukan Baseframe dibawahnya dan dilengkapi dengan perangkatnya OD BTS (Out Door Base Tranceiver Station), Sehingga diperlukan perhitungan ulang dengan menggunakan metode perhitungan Sistem Rangka Pemikul Momen Biasa (SRPMB) dikarenakan lokasi gempa berada di zona 2.Bangunan tersebut merupakan rangka batang atau open frame. Permodelan struktur bangunan menggunakan aplikasi Etabs V9.0.7 dengan memperhitungkan berat beban yang harus diterima oleh bangunan baik itu beban hidup, beban mati, dan beban gempa dan dihasilkan gaya-gaya dalam yang diperlukan untuk dievaluasi kekuatan struktur tersebut berdasarkan SNI-1726-2012, SNI-2847-2013, serta PPIUG-1983. Hasil dari perhitungan kondisi kolom bangunan eksisting area penambahan beban tidak mampu menerima beban tambahan berupa Mini Tower 25M maka  direncanakan perhitungan ulang untuk memastikan elemen struktur yang baru dapat menahan beban tambahan tersebut. Hasil analisis elemen struktur bangunan yang baru berupa perbesaran kolom dihasilkan kolom lantai 1 diperbesar dari K12x12 ke K45x45 dengan mutu beton K-225, Tulangan 16D16 dengan fy=390MPa dan K25x25 ke K45x45 dengan mutu beton K-225, Tulangan 16D16 dengan fy=390MPa. Kolom lantai 2 diperbesar dari K12x12 ke K40x40 dengan mutu beton K-225, Tulangan 16D16 dengan fy=390MPa dan K20x20 ke K40x40 dengan mutu beton K-225, Tulangan 16D16 dengan fy=390MPa. Kolom lantai 3 diperbesar dari K20x20 ke K40x40 dengan mutu beton K-225, Tulangan 16D16 dengan fy=390MPa dan K20x20 ke K40x40 dengan mutu beton K-225, Tulangan 16D16 dengan fy=390MPa.
EVALUATION OF SEKOLAH ISLAM TERPADU (SIT) ALIYA BOGOR BUILDING STRUCTURE SYSTEM BASED ON THE REQUIREMENTS OF SNI 2847:2019 Lutfi, Muhamad; Mulyadi, Ersa Bestari
ASTONJADRO Vol. 10 No. 1 (2021): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v10i1.3105

Abstract

Sekolah Islam Terpadu (SIT) Aliya Bogor is located in west Bogor district, Bogor city, West Java, was founded in 200, thus the standards used by planning consultant in building planning using old standard, where these standards have been updated with current standard, namely SNI 2847:2019. The evaluation carried out in this study based on requirements SNI 2847:2019 knowing the outcome of building that was said to be safe used help software ETABS) and SpColumn. Length of building of Umar Bin Khatab A and B are 18,60 meter;23,65 meter.Building area of building Umar Bin Khatab A and B are 541,26 m2; 865,59 m2. Concrete quality assessment (fc') that came from the test of hammer test column elements, beam elements, and plate elements as big 23,74 Mpa;26,59 Mpa;26,59 Mpa. After analysis some of to experience overstrength. The original column dimension In Building of Umar Bin Khatab A was K25x25 with shear reinforcement is í˜16-150 enlarge to K40x40 with shear reinforcement is í˜39-150 and beam dimension 20x40 enlarge to 35x55. On the building of Umar Bin Khatab B was K25x25 with shear reinforcement í˜16-150 enlarge to K40x40 with shear reinforcement í˜25-150, with the original beam dimension 20x40 enlarge to 30x55. The cost budget in the building of Umar Bin Khatab A is Rp 74.158.600,00 and in building of Umar Bin Khatab B is Rp 61.084.600,00.
ANALYSIS OF STRUCTURE RELIABILITY OF UTSMAN BIN AFFAN BUILDING (Case Study : Sekolah Islam Terpadu Aliya Bogor) Lutfi, Muhamad; Maulana, Ayub
ASTONJADRO Vol. 9 No. 2 (2020): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v9i2.3111

Abstract

Indonesia's tectonic conditions at the meeting of the world's large plates and several small plates that cause the area associated with earthquakes, based on data from the Bogor City Disaster Mitigation, Bogor City is located in an earthquake prone area. Sekolah Islam Terpadu Aliya Bogor is located at Jalan Gardu Raya No. 03, Bubulak, Kecamatan Bogor Barat, Kota Bogor. This study evolved the structure of the school building in terms of the structure of the column and beam elements for the safety and security of its inhabitants. The buildings analyzed were Utsman Bin Affan building TK A and TK B which functioned as places for learning and teaching. The research method starts by analyzing the existing conditions, checking the quality of the concrete, then analyzing the structure using the help of the ETABS V9.7.4 program, and analyzing the column structure using the spColumn program. Structural modeling published in SNI 1727-2013 (concerning loading), SNI 2847-2013 (concerning concrete structure requirements), SNI 1726-2012 (regarding earthquake repair planning), and PPIUG-1983 (concerning Indonesian loading regulations for buildings). The results of the analysis of the Utsman Bin Affan building with 2-story building specifications column dimensions 25 x 25 cm, beams 20 x 40 cm, column concrete quality fc '= 24.74 MPa, concrete beam quality fc' = 26, 59 MPa, principal reinforcement D16 with fy = 390 MPa, shear reinforcement í˜10 Fy = 240 MPa, the results of analysis of existing columns and beams are in accordance with the requirements of SNI 2847-2013, based on that the buildings are approved, and the result of analysis beams does not exceed strength (O / S). 
FINITE ELEMENT METHOD MODELLING OF STEEL SHEET PILE STRUCTURE ON DEEP FOUNDATION EXCAVATION Lutfi, Muhamad; Berangket, Rustama; Taqwa, Fadhila Muhammad Libasut
ASTONJADRO Vol. 11 No. 2 (2022): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v11i2.6302

Abstract

Evaluation modelling of the OT-22 steel sheet pile wall with type H-350 steel strutting reinforcement in the excavation for the foundation structure with a depth of 7.50 meters was carried out to get the value of the safety factor and wall stability. The evaluation stages include subgrade investigation using the SPT method, data collection of profile steel properties used, interpretation of soil data, staged-construction modeling using the Finite Element Method (FEM) computer application, and analysis of modeling results. From the research that has been done, the value of maximum bending moment (Mmax) is 223.8 kNm/m', the magnitude of the axial force that occurs in the strut members is 22.51 kN, 121.91 kN, and 66.10 kN respectively. The value of maximum lateral displacement (Ux) is 62.4 mm. From these results, it can be concluded that the lateral displacement (Ux) that occurs is much larger than allowable displacement (Uall) 39 mm. Thus, it is necessary to modify the existing sheet pile wall system, such as to change the dimensions of the steel sheet pile, changing the dimensions of the steel strutting, or changing the distance of the steel strutting.
Assessment of Building Seismic Risk in the Environment of Ibn Khaldun University Bogor Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Azhari, Denny
ASTONJADRO Vol. 11 No. 3 (2022): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v11i3.6863

Abstract

The city of Bogor has varied contours and high rainfall. Potential natural disasters that often occur include floods, landslides, collapsed buildings, fires, landslides, hurricanes, earthquakes, and landslides. The city of Bogor is included in the zone 4 earthquake. Buildings in the Ibn Khaldun University (UIKA) Bogor were erected vertically as an optimization of limited land. The study of the vulnerability of buildings to earthquakes is very important to ensure that building users are in a safe condition during the service life of buildings against earthquakes using the Rapid Visual Screening (RVS) Method and the Hazus Method. The RVS form is obtained from the design spectra and the response spectrum, namely the high seismicity level based on the building coordinates. Based on the results of the RVS, the value of the vulnerability of buildings in the UIKA Bogor environment is 0.086% with an average value of 3.156. Based on the inspection that has been carried out, the buildings are classified as C1 and S1 building types, vertical irregularities occur in 3 buildings, plan irregularities occur in 1 building out of a total of 9 buildings and the land is assumed to be medium soil (type D) because there is no soil investigation.
Development of the Structure of the Jamie Nurul Iman Sukaraja Mosque Building Based on the Needs of Congregation Facilities Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Jodi Sumarno, Ajie
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.6864

Abstract

Jamie Nurul Iman Mosque has an area of 208.39 m2, the mosque building currently has limited facilities, such as parking facilities for worshipers who still use the shoulder of the road and ablution facilities and special toilets for men and women must be separated, efforts to complete the facilities for the congregation then it is necessary to develop the building, due to the limited land owned, the development is carried out vertically into three floors. The research was conducted by testing the concrete quality (f'c) of existing columns, beams and slabs, the concrete quality values were obtained sequentially of 13.6 MPa, 11 MPa and 11.2 MPa, then modeled the existing structure using the ETABS application and the results showed that column structure, beams experiencing over strength (O/S) cannot withstand the loads acting on the building, so the existing building structure cannot be used for the development of a new three-story mosque building. The results of the structural analysis of the plan based on SNI obtained the dimensions of the new mosque building with a size of 11.25 meters x 18.8 meters, reinforced concrete structures, non-concrete roofs and enamel domes. The material specifications for the new mosque structure are concrete quality (f'c) 30 MPa, reinforcing steel quality (fy) 400 MPa and 280 MPa (BJTP). Column dimensions are 50x50 cm (first floor), column 40x40 cm (second and third floors), main beam dimensions are 30x60 cm, main beam is 30x50 cm, and child beams are 25x40 cm, floor slab thickness is 15 cm, roof slab is not 13 cm thick. The first floor is equipped with male ablution facilities with an area of 12.51 m2, female ablution facilities with an area of 9.7 m2, toilet facilities with an area of 2.84 m2, and vehicle parking facilities with an area of 99.93 m2. The second floor is equipped with men's prayer facilities with an area of 102.87 m2, book storage facilities with an area of 10.5 m2, logistics facilities with an area of 5.67 m2. The third floor is equipped with women's prayer facilities with an area of 72.9 m2. The budget plan for the construction of a three-story new mosque concrete structure is Rp. 717,990,500.00.
Analysis of Cantilever Retaining Wall as Landslide Mitigation on a Tributary of Cisadane River Bogor City Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Taqwa, Fadhila Muhammad Libasut; Ramadan, Fahreza Rahmatsyah
ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i3.7013

Abstract

Bogor City has a high level of rainfall and is included in an area with a high potential for landslides. In March 2021, there was a landslide in a densely populated residential area at RT. 02/03 Cipaku Village, Bogor Selatan District. The landslide occurred on the slopes at the tributary of Cisadane River and adjacent to the nearest connecting bridge. The length of the landslide is 6 meters and as high as 7 meters from the water surface. Mitigation steps to prevent subsequent landslides are needed by constructing a retaining wall, so a cantilever-type retaining wall is chosen by considering the soil parameters and landslide conditions. The results of the analysis show that the stability of the retaining wall against shear (Fs) = 1.04 < SF = 1.5 and for stability against overturning (Fo) = 0.56 < SF = 1.5. Thus, the overall retaining wall is not able to withstand the load of the soil behind it. In terms of stability to the bearing capacity of the soil, the ultimate soil capacity (qs) = 94.149 kN/m2 > V = 243.535 kN/m2. Thus, the subgrade can withstand the load of the retaining wall. Therefore, to meet shear stability and overturning stability, the retaining wall is reinforced by using a bored pile foundation. The results of the foundation analysis showed that the allowable capacity (Qs) was obtained at 584.8 kN.
The Reliability Level of Women's Dormitory Building Ibn Khaldun University Bogor Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Aryanti, Reska; Insan, Muhammad Khaerul
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.7177

Abstract

The Ibn Khaldun University Women's Dormitory Building, Bogor (ASPIKA) is a building that functions as a temporary residence for female students. The ASPIKA Building was established 13 years ago, this has resulted in several building components and structures experiencing some damage which resulted in the function of the ASPIKA Building decreasing, so an assessment of the reliability level of the building is needed. Aspects used in the assessment of the reliability of the ASPIKA Building based on the proper function of the building include aspects of architecture, structure, utility and fire protection, accessibility, and building layout taking into account the applicable SNI standards. The method used is descriptive quantitative as well as survey data of the existing building by the Minister of Public Works No. 2/PRT/M/2006 concerning Guidelines for Building Technical Requirements. The results showed that the percentage value of the building on the architectural component aspect was 95.50%, indicating the building is in reliable condition. The percentage value on the structural component aspect of the building is 96.56%, indicating that the building is still reliable. The percentage of utility and fire protection components has a value of 65% indicating that the component aspects of the building are not reliable. Unreliable factors in utility and fire protection components are influenced by an inadequate fire prevention system so more attention must be paid to these aspects. Components in the accessibility aspect get a percentage of 65%, meaning that they are less reliable, where this value is influenced by the limited access of people with disabilities to reach areas on each floor of the building. The building layout and the environment get a 100% percentage which identifies the building layout as reliable based on the documents on the ASPIKA Building. The total value of the reliability level of ASPIKA Buildings obtained is 79.41% categorized as "Less Reliable" (reliable category is > 95%), this is influenced by the fire protection component by 65% ​​and the accessibility component by 65%. The solution that can be done by the university is to repair and procure facilities on the fire protection system and provide accessibility facilities that can make it easier for people with disabilities.
Building Analysis of the Lill Hajj Wall Umrah Building Based on Functionality of the Building for Umrah and Hajj Pilgrims Lutfi, Muhamad; Chayati, Nurul; Prayudyanto, Muhammad Nanang; Insan, Muhammad Khaerul; Pratama, Septian Anggi
ASTONJADRO Vol. 12 No. 2 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i2.8144

Abstract

PT Lill Hajj Wall Umrah is targeted to get 5,226 consumers per year or equivalent to 436 people per month by 2030. The old office in the form of a shophouse with a building area of 119.75 m² for a capacity of 99 people is considered inadequate to serve 436 consumers per month, so PT Lill Hajj Wall Umrah needs a new office with a meeting room of at least 523.2 m².  A new office will be planned based on SNI 2847-2019, SNI 1726-2019, SNI 1727-2020, and PBI 1983. The planning results are in the form of an analysis of the new office structure with building dimensions of 28.30 x 23.35m, four floors with a building area of 4,503 m². The material specifications of the building structure are concrete quality (fc') 41.5 MPa, melted reinforcing steel quality (fy) 400 MPa (BJTS), and 280 MPa (BJTP). Basement floor column dimensions 0.6 x 0.6 m, first to fourth floor columns 0.5 x 0.6 m, rooftop columns 0.4 x 0.4 m, main beam dimensions 0.25 x 0.35 m, child beams 0.25x0.5 m, stair beams 0.25 x 0.35 m, roof deck beams 0.25 x 0.3 m and 0.3 x 0.4 m, concrete slab thickness 0.15 m. The results of structural modeling using the Etabs application showed that there was no over-strength (O/S) in the column and beam structure elements. The results of the design of the new office building Lill Hajj Wall Umrah in the form of a basement floor equipped with prayer room facilities covering an area of 14 m2, a generator room covering an area of 15.28 m2, a pump room covering an area of 15.28 m2, parking covering an area of 781.53 m2. The first floor is equipped with VIP room facilities covering an area of 33.33 m2, a prayer room covering an area of 25.87 m2, a toilet covering an area of 44.93 m2, and a boutique room covering an area of 55.22 m2, and a warehouse covering an area of 12.3 m2. The second floor is equipped with a meeting room covering an area of 47.9 m2, a manager's room covering an area of 36.7 m2, a toilet covering an area of 30.9 m2, a prayer room covering an area of 16.08 m2, a boardroom covering an area of 80.59 m2 and a waiting room covering an area of 45 m2. The third and fourth floors are equipped with toilets covering an area of 25.75 m2, a prayer room covering an area of 23.95 m2, and a ballroom of 383.75 m2. The estimated budget for the construction of lill Hajj Wall Umrah's new office is Rp 7.612.645.721.- and takes 406 working days for construction.
Slope Reinforcement Using Gabion Retaining Wall On Angke River In Perumahan Curug Residence Griya Elok West Bogor District Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Insan, Muhammad Khaerul; Handrianto, Yayan
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.14254

Abstract

Bogor City is located between 106,480 E and 6,360 S and has an average altitude of at least 190 m, a maximum of 350 m, slope between 0.3%, 4-15%, 16-30% and above 40% with a distance of approximately 60 km from the capital, surrounded by Mount Salak, Mount Pangrango and Mount Gede. Bogor City has annual rainfall between 3500-4000 mm with an area of 4,992.30 Ha, between 4000-4500 mm with an area of 6,424.65 Ha, and between 4500-5000 mm with an area of 433.05 Ha mainly in December to January. (kotabogor.go.id). On 27 April 2019, landslides occurred due to heavy rain in Perumahan Curug Residence Griya Elok Jalan Parvi Bojong Neros RT. 03/ 07, Curug Village, West Bogor District, Bogor City. It is necessary to plan the retaining wall to mitigate the impacts of the landslide disaster. The access road in Curug Residence is an asphalt road with a width of 2.5 m, this causes only small vehicles to be able to pass in the area. In consideration of the narrow access road, heavy equipment cannot enter the Curug Residence landslide location, in order to deal with landslides, a gabion-type retaining wall will be applied. The gabion retaining wall is more efficient and practical with narrow road access because it can be done directly on site and does not require any heavy equipments. The results of the analysis of gabion retaining walls can be concluded as follows, the dimensions of the gabion retaining wall construction are 9.5 meters high, the width of the foot slab is 1.58 meters, and the thickness of the wall top section slab is 0.79 meters. After the calculation, the result of stability factor to shear is 3,624 > 1,5 and stability to bolsters is 5,858 > 1,5. Then it can be concluded that the gabion retaining wall is safe against danger of shear, bolsters and soil bearing capacity. The construction cost is Rp2.735.000.000,- and requires 127 days or 3 months and 1 week of construction work.
Co-Authors Abdul Rahman Adriansyah, Asrul Afrilia, Sintiya Agung Prabowo Ahmad Muhajir, Ahmad Ahmad Suhaedi Al Bahry, Syah Razad Lutfhy Alam, Muslim Pati Ali Gunawan, Iyan Alimuddin, Alimuddin Alimuddin, Alimuddin Amini, Nur Aisah Ani Zulfah, Machnunah Annisa Dwi Febrianti Apriliyandi, Ande ARDYANSAH, ADY Ariani, Rini Arief Goeritno Ariyanti, Reska Arjakoni, Abdul Fatah Arman Arman Arthono, Andri Aryanti, Reska Awaludin, Muhamad Miftah Azhari, Denny Berangket, Rustama Bintang, Ilham Budiawan, Teddy Chayati, Nurul Chayati, Nurul Darmayuda, Trisna Dian Wulandari Eki Mulya Permana Eko Hadi Purwanto Eny Dwimawati Fachruddin Fachruddin Fadhila Muhammad Libasut Taqwa Farhan, Alif Feril Hariati Hafizhuddin, Muhammad Handayani, Juny Handrianto, Yayan Hendra Hendra Insan, Muhamad Khaerul Insan, Muhammad Khaerul Jodi Sumarno, Ajie Juniansyah, Putra Firman Khaerul Insan, Muhammad Luluk Dianarini M. Irfan Mahdi Mahdi, Mahdi Maulana, Ayub Mohamad Ridwan Muhamad Rizki Muhammad Nanang Prayudyanto Muhammad Taufiq Mujihutami, Surina Astri Muktadir, Redho Mulyadi, Ersa Bestari Natasasmita, Ginanjar Pratama, Septian Anggi Puspa Eosina Rafitri Suryawani Ramadan, Fahreza Rahmatsyah Ramadhini, Aulia Rijal, Muhammad Nur Ritzkal, Ritzkal Roy Waluyo Rudi Irawan Rulhendri Rulhendri Rulhendri, Rulhendri Rusandi, Erwin Salam, Edi Nur Salam, Ro'yu Awwalul Mu'minul Quddus Salman, Nurcholis Shulyana, Halyatunisa Dewi Sidik, Sendi Abduloh Sobur Sobari Suali, Muhamad Subtoni Subtoni Subtoni, Subtoni Sudrajat, Endang Sunandar, Nandar Syaiful . Syaiful Syaiful Syaifullah, Bagus Nurzein Syaja'ah, Siti Kholifah Tasrif Tasrif Tazul Arifin Tedy Murtejo Tirta Adhyaksa Wicaksono, Muhamad Hasan Winara, Agriatama Hegar Witarsa, Aceng