My main research interests are Construction Engineering Management | Disaster Management | Earthquake Engineering | Building Information Modeling
Earthquake Engineering Building Information Modeling Disaster Management Construction Engineering Management
Adanya peningkatan volume pekerjaan konstruksi terkait program pemerintah Indonesia dalam pembangunan infrastruktur, membuat sektor konstruksi mengalami pertumbuhan yang cukup besar dibanding sektor ekonomi lainnya, dimana entitas yang mendominasi adalah kontraktor BUMN dan kontraktor swasta. Perbedaan utama kontraktor BUMN dan swasta tersebut adalah aspek finansial. Dalam usaha pendanaan investor, langkah IPO (Initial Public Offering) dan strategi perusahaan, terutama manajemen risiko menjadi hal penting untuk meyakinkan investor untuk berinvestasi pada perusahaan masing-masing. Oleh karena itu, pada penelitian ini bertujuan membahas perbandingan karateristik identifikasi risiko dan respon risiko dalam manajemen risiko perusahaan pada kontraktor BUMN dan kontraktor swasta yang memiliki manfaat pada pengambilan keputusan investor sektor konstruksi. Analisis dilakukan dengan analisis perbandingan kualitatif sederhana manajemen risiko pada studi kasus 4 kontraktor BUMN dan 4 kontraktor swasta yang telah melakukan IPO. Hasil analisis menyimpulkan bahwa pada identifikasi risiko, kontraktor BUMN memiliki top risk secara umum pada risiko-risiko di tingkat perusahaan pada hirarki proses konstruksi, sementara pada kontraktor swasta secara umum berfokus pada risiko-risiko di tingkat proyek pada hirarki proses konstruksi. Perbedaan signifikan yang ditemukan adalah pada perencanaan respons terhadap risiko persaingan usaha, dimana kontraktor BUMN berfokus pada tingkat perusahaan dan memanfaatkan hubungan entitas dengan pemerintah, sementara kontraktor swasta berfokus pada tingkat meningkatkan kuantitas dan kualita proyek yang dikerjakan.
Earthquake effects on the buildings must be evaluated within the current standard provision. The shape of building gives a unique seismic performance on the structure. In typical hotel building, the lobby area in the first floor usually has some slender columns due to the needs of higher clearance to give a widely space area. The slender columns in the big hall tends to create asymmetric building and torsional behaviour on seismic performance. This behaviour is one of the most frequent source of structural damage and failure. One of the solution is to add shear wall in elevator area. The purpose of this paper is to seek the effect of shear wall configuration in elevator area on the seismic performance through numerical analysis. There are some requirements for structural analysis under seismic load, such as: time period, modal analysis, story drift, and other details. In building with dual system, story shear in frame at each level must carry over 25 % of total story shear at that level. In this study, an eleven-storey hotel building located in Tanjung Pinang City, Indonesia was evaluated due to gravity and seismic load. For the building, the requirements of the time period from the standard are 1.21 sec (minimum) and 1.70 sec (maximum). As results, two-sided shear wall in X direction and two-sided shear wall in Y direction is recommended because it has the best seismic performance, time period below the minimum, story drift below allowable, the dynamic lateral load has meet minimum requirement (85% Static Load), and frame structure has carry more than 25% lateral load in dual system building.
Indonesia is an earthquake-prone country. In many earthquakes, school buildings suffer the most damage than other public facilities. In 2020, the conditions of around 70% of 218,234 school classrooms in Indonesia were deteriorating. This contributed to a significant earthquake vulnerability. Limited funding for rehabilitation and renovation became an obstacle to reduce the vulnerability. This study proposed that Rapid Visual Screening (RVS), which is a simple method and has a wide coverage, could be a solution to prioritize building rehabilitation. Bandung, the capital city of the most populated province in Indonesia, has complex earthquake hazard risks, which made it a suitable study area for implementing RVS. This study conducted a seismic vulnerability assessment of school buildings in the city of Bandung, Indonesia. The methodology used is based on Indonesia National Disaster Management Agency (BNPB)’s Regulation No. 4 of 2012 on Rapid Visual Screening (RVS) procedure compared to FEMA 154 RVS procedure with local hazard data and building data. RVS was conducted in total 334 elementary school buildings in 30 districts. The result of the BNPB’s RVS procedure showed an average RVS score (S) of 4.455 where 36.53% buildings were in safe condition and 63.47% buildings required further assessment of the conditions from construction experts. The result of the FEMA 154 RVS procedure showed an average RVS score (S) of 0.905 where 22.16% of the buildings were in high probability of grade 4 damage and 77.84% of the buildings were in high probability of grade 3 damage.
Indonesia is an earthquake-prone country. In many earthquakes, the housing sector suffers the most damage. Repairing and rebuilding houses is often the most expensive part of post-disaster recovery, placing a burden on the government. Standards and guidelines for earthquake-resilient houses exist, yet houses continue to be damaged in earthquake events. Although Indonesia has numerous engineers, both experienced and newly qualified, only a few are interested in pursuing and identifying affordable solutions to the housing problems caused by earthquakes that are sustainable and resilient. Moreover, people are unaware of and unable to implement the proposed and promoted solutions. With many people living in earthquake-prone areas with little access to affordable and appropriate technology, the challenge facing Indonesia today is to produce more engineers who have the level of sensitivity, empathy, and passion required to address this great humanitarian need. The promotion of humanitarian engineering to provide appropriate solutions must start early on in higher engineering education.
Abstract Shear wall frame buildings are commonly used in buildings ranging from about 8 to about 30 stories. Shear walls may be simple planar walls, several wall segments commonly are connected to act as a three-dimensional unit, then may enclose spaces in buildings, such as stairs, wells or elevator shaft. In this case, 18 story building with shear wall as planar has been analyzed. The portion of frame is less than 25 % as required in Indonesian standard there are 11.64% in X direction and 12.12 % in Y direction, so the results are compared with the condition if shear wall is released, hence, only boundary elements are placed and taken the maximum value by giving 25 % earthquake load. In the 100 % base shear acting on structure the value of column shear force has greater value at the bottom story of column than if shear wall is released and only 25 % base shear is given. The value of shear force at shear wall in the bottom story is greater in the bottom because there is void in that area. The portion of frame is less than 25 % as greater in the bottom because there is void in that area, so the greater shear force in the story is obtained. As the result, at the lower story the correction of scale factor less than one factor for all story can give the economical design.
The article was formed from the virtual tour during the pandemic of COVID-19.The activity is part of a collaboration lecture between two universities based in Bandung, Indonesia, and Guanxi, China.The pandemic truly pushed several offline activities into online activities, including tours to historical sites.A virtual tour to historical Pecinan in Jamblang Cirebon becomes a solution to survive the new normal era.This strategy is automatically connected, reconnect, exchange, and expand people's experience and cultural knowledge in different places and disparate time frames.The research aims to give a perspective of spatial experience through virtual activity.This qualitative research uses a phenomenological approach to fulfill the objective because the technique is closely linked to space, experience, and perception in any media.The finding of this research reveals that pandemics will never close the possibility of being able to experience and appreciate the existence of heritage and cultural values in Pecinan, Jamblang.So that one of the learning processes keeps alive, one of the national identities not be lessened, and cultural resilience will be maintained.
Abstract. Everywhere in the world, especially as the fourth industrial revolution begins, technological advancements are being discussed. This technological advancement also affects the building industry, one example being the use of Building Information Modeling (BIM) technology. All technologies, particularly BIM, will advance and redevelop throughout this Covid-19 epidemic. BIM has benefits and barriers to implementation that increase with its development and sophistication, particularly for contractors. Therefore, it's important to research the advantages of using BIM as well as the barriers for contractors. The purpose of this study is to analyze the benefits and inhibiting factors in the implementation of BIM in building construction for contractor. This research was conducted by using literature from previous studies to find out what statements are the benefits and barrier factors in the implementation of BIM 4D for contractors with top and middle qualifications. Then the statement was compiled into a questionnaire and distributed to respondents via online platform. In addition to obtaining the mean value for each research variable, the questionnaire survey responses were processed utilizing validity and reliability tests. The findings of this study show that the benefits of BIM implementation for top contractors include better and more appealing building design or modeling, more accurate documentation, as well as better and more attractive building design or modeling for middle contractors. The lack of training and education in BIM itself is the main obstacle to its implementation for these top contractors, while the cost of licensing BIM software or apps is fairly high for midrange contractors.
Perkuatan struktur kolom beton bertulang pada gedung pabrik memiliki pengaruh pada kegiatan operasional, secara khusus pendapatan dari pabrik. Pada pemilihan metode perkuatan pada pabrik, estimasi kerugian pendapatan perlu dipertimbangkan selain kriteria umum lainnya. Studi ini bertujuan mendapatkan perbandingan metode perkuatan kolom beton bertulang antara metode steel jacketing (SJ) dan penggunaan carbon fiber reinforced polymers (CFRP) pada gedung pabrik berdasarkan aspek biaya, durasi pekerjaan, dan dampak kerugian pendapatan operasional pabrik. Studi kasus dilakukan pada fasilitas gedung pabrik di Provinsi Lampung, dengan 2 kolom yang akan diperkuat hasil analisis tahapan studi sebelumnya. Analisis biaya dan durasi dilakukan mengacu Analisis Harga Satuan Pekerjaan (AHSP) PerMen PUPR No.28/PRT/M/2016 dan harga satuan daerah pada wilayah Provinsi Lampung. Estimasi kerugian operasional pendapatan (YLOSi) pabrik dikalkulasi melalui pendekatan model HAZUS. Hasil penelitian menunjukkan pada aspek biaya, metode CFRP memiliki biaya yang lebih besar dengan selisih 37,02% dibandingkan metode SJ. Pada aspek durasi pelaksanaan, metode CFRP memiliki durasi yang lebih singkat dengan selisih 2 hari (40,00%) dibandingkan metode SJ. Pada aspek YLOSi pabrik menunjukkan metode CFRP memiliki estimasi kerugian lebih kecil dengan selisih 40,00% dibandingkan metode SJ. Namun pada total biaya tanggungan (biaya pelaksanaan dan estimasi kerugian), metode CFRP memiliki nilai lebih besar 24,28% dibandingkan metode SJ.
The capacity of the bolted connection on steel tensile rods can be determined through capacity analysis and connection failure. In term of capacity analysis and failure of steel tensile connection, the specified tensile connection capacity is generated based on several parameters such as cross-section of rod, grade of steel, thickness and grade of the steel plate, and grade and diameter of bolts. The capacity of steel tensile connections as a result of capacity analysis and connection failure often has a lower value than the connection capacity in real conditions. In this research, the comparison of 30x30x3mm angle cross-section connections with BJ37 grade quality was connected with 2 mm steel plate (also BJ37 grade) using 8 mm bolt connectors (A307 grade), through capacity analysis, failure study, and experimental study with type of failure is bolt bearing failure. In the capacity analysis study and the failure of steel tensile connections obtained a nominal capacity is 14.21 kN with the type of failure is shear failure. In the experimental study was tested 3 specimens, the average value of ultimate capacity was 18.67 kN and the failure for all of the three specimens are shear failures. The conclusion that can be drawn from this research is both the result of analytical calculations and experimental testing in the laboratory showed a good agreement and have the same trend. The test specimens were designed on the basis of analytical calculations for bolt bearing failure, experimental test results for all of three specimens all showed a failure pattern of bolt shear. The nominal strength from the results of the analytical study with the ultimate load of the experimental study results has a difference of 31.4% with higher experimental results. Through this research is expected to be a learning-media to know one type of failure on the steel connections that is bolt shear failure, obtain a comparison between analytical calculation results referring to applicable design standards, and the results of experimental testing in the laboratory.
Abstract In the case of 15 th building, the structure type to earthquake resistant code is dual system reinforced concrete consists of frame and shear wall. The structure is analysis by dynamic analysis for whole structure and compare base shear by static analysis. By several trial position of shear wall can give first and second mode is translation and the third mode is rotation. In this case planar shear wall is used and placed in two direction of axis. The category of structural system is Other Structure for calculation of fundamental period (T). Fundamental Period (T) of structure is more than T maximum, so value of static seismic coefficient (C s ) taken from T maximum. Each of important element is column where the dimension and reinforcement are must satisfied for requirements. Shear wall have joint together with others shear wall, so one node used by several shear wall, make duplication forces in support reaction. For foundation design we can used 1 st story internal forces in finding forces and compare them with after correction of support reaction caused duplication node in used with several shear walls. This exercise could solve the problem to anticipate duplication forces in several planar shear wall using one foundation assembly from several shear walls. The results of preliminary design column based on axial forces is 23,12 % lower than internal forces. From preliminary design based on axial forces. The dimension of preliminary design columns are lower than ideal dimension with 3 % reinforcement ratio. The result of difference between internal forces columns and support reaction columns is 12,99 %. The result of difference between internal forces shear walls and support reaction shear wall is 0,80 %.
Sambungan baut pada batang tarik baja memiliki kapasitas dengan macam-macam tipekegagalan. Kapasitas sambungan baut pada batang tarik baja dapat ditentukan melalui analisiskapasitas dan kegagalan sambungan. Pada analisis kapasitas dan kegagalan sambungan batangtarik baja, kapasitas sambungan batang tarik baja yang ditentukan dihasilkan berdasarkan banyakparameter struktur diantaranya profil dan mutu batang tarik, tebal dan mutu pelat penyambung,dan juga tebal dan mutu baut sambungan. Kapasitas sambungan batang tarik baja hasil analisiskapasitas dan kegagalan sambungan seringkali memiliki nilai yang lebih rendah dari kapasitassambungan dalam kondisi riil. Pada penelitian ini dilakukan perbandingan kapasitas sambunganbatang tarik profil siku 30x30x3mm bermutu BJ-37 disambung dengan pelat mutu BJ-37 tebal3mm dan baut penyambung diameter 8 mm dengan mutu A307 melalui studi analisis kapasitas dankegagalan dan studi eksperimental dengan tipe kegagalan geser. Pada studi analisis kapasitas dankegagalan sambungan batang tarik baja diperoleh kapasitas sambungan sebesar 18,9 kN dengantipe kegagalan geser. Pada studi eksperimental dilakukan pengujian tarik sambungan baja batangtarik dengan 3 buah benda uji, didapatkan nilai rata-rata kapasitas ultimit sebesar 22,63 kN danmengalami kegagalan geser baut pada ketiga benda uji. Kesimpulan yang dapat diambil daripenelitian ini adalah baik hasil perhitungan secara analitis dan pengujian eksperimental dilaboratorium menunjukkan trend yang baik dan sama. Benda uji didesain berdasarkan perhitungananalitis untuk mengalami kegagalan geser pada baut, hasil pengujian eksperimental untuk 3 (tiga)benda uji seluruhnya menunjukkan pola kegagalan geser baut. Kekuatan nominal tarik rencana(Rn) dari hasil studi analitis dengan beban ultimit hasil studi eksperimental memiliki perbedaansebesar 16,48 % dengan hasil eksperimental lebih tinggi. Melalui penelitian ini diharapkan dapatmenjadi media pembelajaran untuk mengetahui salah satu jenis kegagalan pada sambungan batangtarik yaitu kegagalan geser baut, memperoleh gambaran perbandingan hasil perhitungan analtisyang mengacu pada standar perencanaan yang berlaku serta hasil pengujian eksperimental dilaboratorium
The procurement process in construction is quite complicated with its various methods. One of them, design and construct contracting, which often used, is one that has an advantage of saving time and money. However, for companies without sufficient capabilities to carry out procurement, the design construct contract method also requires expert assistance in the process. To meet the construction procurement process requirements, one workable solution is that the company collaborates with a university for its factory construction development. The relevant academicians have expertise to solve problems in procurement process. The academician team was collecting appropriate data and then evaluating it to give suggestions on the construction procurement process. The method used was a simple comparison of the price proposed by the contractor to the owner estimate which was then calculated based on the Indonesian Regulation by the Minister of Public Works and Housing no. 28/PRT/M/concerning the unit price analysis that used as reference. Prices for materials, tools, and wages referred from Indonesian unit price journal references. The result of the evaluation was to determine the contract winner based on price and technical design aspects within company budget. During the evaluation process, clarification was made regarding the proposed design, construction method and quality of the proposed material to match the technical aspects of the design. The price evaluation process which was carried out in a short term has assisted the company in carrying out its construction procurement process. In the long run, cooperation can be developed in the form of human resource training so that the company can develop independently in carrying out the construction procurement process.
 
 Keywords: construction procurement, community service, owner estimate
Abstract Shear walls modelling as planar or assembly have different assumption in behaviour that will give different responses in forces. Shear wall planar modelling as individual walls which each wall was modelled as a vertical beam. Shear Wall assembly modelling as a combined unit to be represented by one beam element. The application of shear wall assembly is placed in elevator shafts in buildings or stairwell. [1]. In ETABS program, there are two types modelling shear wall are planar walls and wall assemblies. The analysis is based on three types of design section that are Simplified Compression (C) and Tension (T), Uniform Reinforcing and General Reinforcing. The purpose of this study is comparing the planar walls Simplified C and T with planar walls Uniform Reinforcing and wall assemblies Uniform Reinforcing. The conclusion for longitudinal reinforcement are, first, planar walls Simplified C and T is 40 to 96 % larger than wall assemblies, except pier P6 is 28 % smaller, second, planar walls Uniform Reinforcing is larger than 7 to 33 % wall assemblies Uniform Reinforcing, except pier P6 is 39 % smaller, third, the planar walls Simplified C and T, planar walls Uniform Reinforcing transversal reinforcement are 1 to 8 % larger than wall assemblies Uniform Reinforcing, except pier P6 is 51 % smaller.
Road infrastructure as a means of transportation has an important role in the economy of a region. The ability of road infrastructure to serve the community is not only needed under normal conditions but is also needed when a disaster occurs as part of disaster resilience. One of the approaches that can be used in assessing disaster preparedness is mapping disaster risk on the road sections under review. In this research, a case study of disaster risk mapping was carried out on the Pasauran-Sp. Labuan - Cibaliung and Citereup-Tanjung Lesung, Banten Province which is divided into 11 road sections. Disaster risk mapping on roads in Padegelang is very much needed with disaster-prone locations making it very prone to disasters, especially floods, tsunamis, earthquakes, and landslides. The aim of this study is to map disaster risk based on the value of the multi-disaster risk index (floods, tsunamis, earthquakes, and landslides) on the Pasauran-Sp. Labuan-Cibaliung and Citereup-Tanjung Lesung. Disaster risk mapping is carried out using the procedures of Director General of Highways Circular Letter no. 12/SE/Db/2014 concerning Guidelines for risk analysis of natural disasters affecting roads and bridges. With this disaster risk map, it is hoped that it will be useful for stakeholders to make decisions related to disaster mitigation on these roads. The results of the multi-disaster disaster risk index values obtained from this study in sections 9, 10 and 11 have a low risk level, in sections 1,3,5 and 6 have a medium risk level, and in sections 2,4,7 and 8 have a high level of risk
Gempa bumi Mamuju terjadi pada tanggal 15 Januari 2021 dengan kekuatan Mw 6,2 yang berdampak
 pada empat kabupaten di Provinsi Sulawesi Barat, Indonesia. Guncangan gempa menyebabkan 16.116
 rumah rusak, 81 perkantoran rusak, 48 fasilitas kesehatan rusak, dan menyebabkan korban luka-luka
 dan meninggal dunia. Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR) segera memulai
 rekonstruksi setelah guncangan gempa dengan fokus pada fasilitas-fasilitas penting yang terkena
 dampak seperti perumahan, kantor pemerintah, dan klinik. Selama masa rekonstruksi, Sistem
 Manajemen Keselamatan dan Kesehatan Kerja (SMK3) tetap diberlakukan sebagaimana diwajibkan
 oleh peraturan (PerMenPUPR 10/2021). Peraturan ini memberikan pedoman alokasi biaya SMK3,
 namun pada praktiknya alokasi biaya SMK3 belum diterapkan secara serius. Penelitian ini bertujuan
 untuk mengetahui biaya yang dialokasikan oleh kontraktor untuk estimasi komponen SMK3, khususnya
 pada proyek rekonstruksi. Studi kasus penelitian dilakukan pada 40 bangunan (fokus pada bangunan
 kantor pemerintah dan klinik) dengan tingkat kerusakan yang bervariasi (ringan, sedang, dan berat).
 Alokasi biaya SMK3 dalam studi ini diklasifikasikan berdasarkan tingkat hunian bangunan dan tingkat
 kerusakan untuk mendukung estimasi biaya berdasarkan tingkat hunian bangunan dan tingkat
 kerusakan. Alokasi biaya berkisar antara 0,23% hingga 17,71% dari nilai kontrak. Untuk kantor
 pemerintah, alokasi biaya SMK3 berkisar antara 0,28% hingga 17,71%, bervariasi pada setiap tingkat
 kerusakan. Untuk klinik, alokasi biaya SMK3 berkisar antara 0,91% hingga 11,37%, bervariasi pada
 setiap tingkat kerusakan. Pada penelitian ini juga menunjukkan bahwa biaya penerapan SMK3 tidak
 linier pada tingkat pesentase nilai kontrak seperti yang diestimasikan oleh peraturan terkait, namun
 persentase biaya SMK3 bervariasi dengan tingkat kerusakan bangunan yang direkonstruksi.
In the implementation of housing development, the problem of late payment delays is a common issue encountered in commercial and subsidized housing projects during construction. These delays impact the timely completion and lead to disputes among the involved parties, which include owners, contractors, and subcontractors. This study aims to analyze the primary factors contributing to late payment in construction projects, specifically in commercial and subsidized housing. The analysis is conducted from the perspective of the owner, contractors, and subcontractors. The study involves six owner respondents, six contractor respondents, and four subcontractor respondents. The survey results were analyzed using the Analytical Hierarchy Process (AHP) to assess the significance of various factors influencing payment delays in both housing schemes. The analysis results indicate that financial issues with the owner's company are crucial factors from the owner's perspective in causing payment delays in both commercial and subsidized housing projects. A major challenge faced by contractors is the lack of capital availability, which can lead to delays that affect all involved parties. Meanwhile, discrepancies between job specifications not following the contract from the subcontractor's viewpoint highlight the importance of clear communication and rigorousness. All parties involved in housing projects need to improve financial management, enhance capital procurement, and tighten the supervision of contract implementation. By identifying key factors, adopting best practices can help mitigate the risk of payment delays and improve efficiency in future housing project implementations, whether commercial or subsidized.
Concrete technology competency training is a primary factor in the construction industry with the challenges of technological development. The Covid-19 pandemic period is a challenge in the training in adapting training methods. Concrete Technology Laboratory organizes community service for concrete technology competency training by utilizing Blended Learning (BL) and Flipped Clasroom (FC) learning models to meet these needs and challenges. The training participants totaled 11 people with various professional backgrounds in the construction world. Indicators of the success of community service methods are measured through pre-test, post-test, and activity evaluation surveys. From the results of the pre-test and post-test, community service activities provide a high level of success, indicated by the trend of increasing test scores, as well as the acceleration of participants' test time. The application of BL and FC learning models in community service provides the effectiveness of positive training achievements in the challenges of the Covid-19 pandemic.
The Occupational Safety and Health (OSH) accident in Indonesia has reached its highest level in five years. The development of OSH cost includes the project budget to reduce accidents. Building Information Modeling (BIM) can detect potential causes of accidents prior to the construction starts so that the accident can be reduced. Many utilizations of BIM in OSH focus on planning and prevention rather than on OSH cost estimation. This study aims to conduct OSH cost component estimation using BIM for a building project in Indonesia. Two projects in the planning phase, tower building and warehouse building, are studied. The result indicates BIM utilization contributes to a to a more detailed safety equipment budget compared to the actual case. OSH cost reaches 2.01% from total budgeted project cost for tower building and 0.37% from total budgeted project cost for warehouse building. This shows the potential of estimating the OSH budget using the BIM model to achieve the ideal value of the OSH budget (2.01%–3.70%), particularly for mid-rise buildings.
Based on the World Bank publication in 2019, one of the strategies to improve disaster financial resilience is the availability of loss estimation data. As one of the vulnerable countries affected by earthquake disasters, Indonesia does not yet have a widely used pre-disaster estimation model. Model adoption is one of the strategies used to improve disaster resilience in Indonesia. The HAZUS method is a model FEMA (Federal Emergency Management Agency) developed to estimate earthquake losses in the US. The adoption process in Indonesia requires adjustments to the EDP (Engineering Demand Parameter) used in the HAZUS model. The EDP in the HAZUS model consists of capacity curves, fragility curves, and repair cost coefficients. The statistics of buildings affected by earthquakes in Indonesia from 2000 to 2020 show that residential houses are the most affected buildings. This study aims to obtain comparative results of the HAZUS model structural element loss estimation with modified data of local capacity curve pushover results in Indonesia. The study was conducted by performing a pushover analysis on a case study of a residential building to obtain a capacity curve. In this study, the EDP analyzed was only the EDP of the capacity curve. The case study was conducted at housing cluster X in West Bandung Regency, West Java, using house type T94/120 as the case study structure. The results of the capacity curve comparison show that the capacity curve of the local house from the pushover analysis has lower stiffness and ductility. The comparison of loss estimation for single hazard scenarios shows that the modified curve method has the most conservative loss estimation than HAZUS in the hazard of earthquake return periods of 100, 250, 500, and 750 years. The annual loss estimation shows that the modified capacity curve provides the most conservative or 37.5% larger in annual loss estimation.
Indonesia’s geographical location, which is prone to earthquakes and high economic losses in the infrastructure sector, requires a quantitative approach to support post-disaster financial resilience. This study aims to estimate earthquake losses to road and bridge infrastructure in a flyover in the City of Bandung using the HAZUS method developed by FEMA in the United States. The research methodology involved analyzing losses on the 550-meter flyover at the Jakarta street, the City of Bandung, which consisted of road and bridge segments. Estimates were made based on eight earthquake scenarios with different recurrence periods, using seismic parameters from the 2017 Indonesian Earthquake Map correlated to meet annual physical loss requirements (AAL). The analysis components included hazard (PGD and S1), fragility curves, and cost variables for each damage level. The results showed that the AAL values for sections AB, BC, and CD were IDR 23.46 million, IDR 14.29 million, and IDR 28.67 million, respectively. These findings indicate that the HAZUS method can be used to systematically map potential road infrastructure losses and support the planning of Disaster Pool Funding (PFB) allocations. Despite limitations in local data and design parameters, this study provides a strong basis for the development of more contextual and applicable loss estimation models in Indonesia.
