Widya Teknik diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas Hindu Indonesia, Denpasar. Widya Teknik merupakan media Informasi ilmiah bidang ilmu pengetahuan dan teknologi baik berupa hasil penelitian maupun kajian pustaka. E-ISSN : Widya Teknik has been indexed on: Ciptaan disebarluaskan di bawah Lisensi Creative Commons Atribusi-BerbagiSerupa 4.0 Internasional.
PENGARUH KARAKTERISTIK RUMAH TANGGA DAN KUALITAS ANGKUTAN UMUM TERHADAP KEPEMILIKAN KENDARAAN PRIBADI
Private vehicle ownership in North Kuta District has increased rapidly due to economic and urban development, leading to congestion and pollution. This study analyzes the influence of household characteristics and public transport quality on private vehicle ownership. Household characteristics include income, family size, education, and employment status, while public transport quality covers comfort, affordability, and punctuality. This research uses a quantitative approach by distributing questionnaires to 400 households. The t-test showed significant partial effects of household characteristics (t = 13.883) and public transport quality (t = 14.269) on private vehicle ownership. The findings recommend improving public transport services and offering incentives for public transport users. Future studies may include infrastructure and socio-cultural variables for broader analysis.
Copyright (c) 2025 Ni Luh Putu Maekayanti, I.B. Wirahaji, Made Novia Indriani https://creativecommons.org/licenses/by/4.0
PENGARUH KARAKTERISTIK RUMAH TANGGA DAN KUALITAS ANGKUTAN UMUM TERHADAP KEPEMILIKAN KENDARAAN PRIBADI (Studi Kasus: Kecamatan Kuta Utara, Kabupaten Badung)
Copyright (c) 2026 Ni luh putu Maekayanti https://creativecommons.org/licenses/by/4.0
IDENTIFIKASI STRATEGI PENATAAN RUANG BERBASISKAN KEARIFAN TRADISIONAL BALI
Spatial planning based on traditional Balinese wisdom needs to be preserved. Traditional Balinese wisdom is a development approach that contributes to the balance of nature. Awareness of development that meets current needs impacts future generations without compromising their own needs. In architecture, this includes the efficient use of energy, environmentally friendly materials, and minimizing negative impacts on the environment. Challenges to increased development, such as limited land, shifting needs, erosion of understanding and characteristics, material use, and weak regulations on environmental sustainability, can be minimized through various strategies such as strengthening regulations and law enforcement, education and cultural outreach, workshops and seminars, and the development of adaptive architecture.
Copyright (c) 2025 Widya Teknik https://creativecommons.org/licenses/by/4.0
ANALISIS KEPUTUSAN PENGGUNAAN TRANSPORTASI ONLINE GO-JEK DI KECAMATAN KUTA UTARA, KABUPATEN BADUNG
Online transportation is a form of road traffic and transportation management that utilizes technological developments. One of the currently popular transportation service products is online Android-based land transportation, such as Go-Jek. The purpose of this study was to analyze the internal and external factors influencing the decision to use Go-Jek by residents in North Kuta District, Badung Regency, a rapidly developing area due to tourism development. Data collection was conducted through the distribution of 400 questionnaires, after the questionnaires were declared valid and reliable. The Likert-scale questionnaire asked respondents to select their perceptions by selecting from the available answers, ranging from strongly disagree (1) to strongly agree (5). Data analysis used multiple linear regression statistics. The results showed that internal and external factors had a significant positive effect on the decision to use Go-Jek, with t = 3.719 and 10.965 > t = 1.966, respectively, and both had a significance value of 0.000 < 0.05. Both factors simultaneously had a significant positive effect, with an F-value of 4,907.427 > F-value of 0.025. Both factors had a very strong influence, with a coefficient of determination (R2) of 0.961 (96.1%). The resulting Go-Jek user decision model was Y = 0.447 + 0.130X1 + 0.452X2.
Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0
PENGUJIAN KUAT TEKAN DAN KUAT LENTUR BALOK LAMINASI KOMBINASI BAMBU PETUNG (DENDROCALAMUS ASPER) DAN KAYU KAPUK RANDU (CEIBA PENTADRA) SEBAGAI BAHAN KONSTRUKSI ALTERNATIF
The demand for wood as a construction material continues to increase in line with the growth of the industrial and development sectors. However, the limited availability of timber due to deforestation and forest degradation demands a more sustainable material alternative. This study aims to find out and compare the values of compressive strength and flexural strength of laminated blocks made of petung bamboo, kapuk randu wood, and a combination of both. The method used was a laboratory experiment with mechanical testing of three groups of laminated beams, each consisting of three specimens. Testing is carried out after the block reaches the age of 7 days. The test results showed that the petung bamboo (BP) beams had an average compressive strength value of 26 MPa and an average flexural strength of 118.56 MPa, making it the group with the highest mechanical performance. The kapuk randu (KR) beam showed the lowest value in both parameters, with a compressive strength of 4 MPa and a bending strength of 27.36 MPa. The combination group of petung-kapuk randu bamboo (KMB) is somewhere in between, with an average compressive strength of 12 MPa and a flexural strength of 53.20 MPa. BP-2 and KMB-2 specimens showed optimal performance in each group. Based on these results, petung bamboo is proven to have high potential as an environmentally friendly construction material, both singly and in combination. The lamination technique on this material can increase mechanical strength and offer a sustainable alternative to the use of conventional wood.
ANALISIS RISIKO K3 PADA PEKERJAAN STRUKTUR PROYEK GEDUNG BERTINGKAT
Occupational Safety and Health (K3) is an important aspect in supporting sustainable national development. High-rise building construction projects have a high level of risk, especially on complex structural work and have the potential to cause work accidents. This study aims to identify and assess the level of hazard risk of structural work against the implementation of the Occupational Safety and Health Management System (SMK3) in the JW Marriott Hotel construction project in Puhu, Payangan, Gianyar. The research method combines quantitative and qualitative descriptive approaches with purposive sampling techniques to select structural workers and K3 experts as research samples. The results of the study identified 61 types of hazard risks that arise in the work of foundations, columns, beams, and floor plates, such as the risk of falling from height, being hit by materials, and being punctured by sharp objects. The Safety Index (SI) calculation shows that most risks are in the Rare (J) and Occasional (K) categories, with an overall SI value of 39.16%, indicating a moderate to high level of risk. Meanwhile, impact analysis showed that 87% of the total 61 risks were in the low risk category, and 13% were in the medium risk category, without finding very high level risks. The Severity Index value of 46,67% confirms that most hazards have the potential to have a significant impact on occupational safety. Overall risk mapping shows moderate risk predominance, with a very limited proportion of low risk.
MENENTUKAN HARI BAIK DALAM MEMBANGUN RUMAH STUDI KASUS PEMBANGUNAN BALE DAJA
Houses for Balinese people are a form of Hindu culture. The community still uses Hindu culture as a guideline in building houses. One type of traditional house whose implementation is based on auspicious days according to the Balinese calendar or wariga calculations contained in ancestral palm leaves. This study uses a qualitative descriptive method using the theory of literature review. This phenomenon will be explained and studied based on auspicious days according to the palm leaves in the house construction process. From the results of the study, the construction of the Bale Daja house was obtained according to the calculation of auspicious days for Making Foundations & Temel Structures using Sapta Wara: Monday, Wednesday, Thursday, Friday. Using good Sanga Wara: Tulus or Dadi. Days & Wuku that need to be avoided are Lebur Awu, as well as wuku such as Sinta, Landep, Gumbreg, Medangkungan, Sungsang, Dunggulan, Pahang, Tambir, Bala, Wayang, Watunggunung—all are considered not good for building Wuku without a teacher, sasih without Tumpek, wulan without Sirah, Erangan, Kala, Dangu, Pasah, and Prawani Wulan is also not good.
EVALUASI FAKTOR PENYEBAB KETERLAMBATAN PROYEK BENCINGAH DAN CATUS PATA PURA AGUNG BESAKIH KARANGASEM
ANALISIS PERBANDINGAN BIAYA DAN WAKTU PADA PELAKSANAAN PENGECORAN SITEMIX DAN READYMIX
Cost and time efficiency are crucial factors in the success of construction projects, especially in selecting concrete casting methods. Concrete casting is an important process in construction that affects the strength, durability and overall quality of the building structure. The casting methods commonly used are Site Mix and Ready Mix. The Site Mix method is carried out at the project site by mixing materials such as cement, sand and coarse aggregate manually or using a molen machine, while the Ready Mix method is produced in a batching plant and sent to the project site using a mixer truck before being poured with the help of a concrete pump. The main difference between these two methods lies in the efficiency of time, cost, and quality of the concrete produced. This research aims to analyze the cost and time comparison between the Site Mix and Ready Mix methods on the Villa Klungkung House project. The research was carried out using quantitative methods through direct observation in the field, by collecting data related to labor productivity, work volume, casting duration and implementation costs. The research results show that the Ready Mix method is more efficient in implementation time, with an average of 0.75 days per 10 m³ of concrete, compared to Site Mix which requires 1.25 days per 10 m³ of concrete. From a cost aspect, the Site Mix method is more economical with an average of IDR 727,625 per m³, while the Ready Mix method requires IDR 1,600,000 per m³. However, the Ready Mix method is superior in terms of consistency of concrete quality, time efficiency of up to 40%, and ease of quality control, making it more suitable for large-scale projects that require timeliness and higher quality standards. So the choice of casting method must consider various factors, including project needs, budget and predetermined schedule. It is hoped that the results of this research can be a reference for contractors, project managers and project owners in determining optimal casting strategies according to the conditions and project targets to be achieved.
EVALUASI PENGENDALIAN SUMBER DAYA PADA PROYEK PEMBANGUNAN GEDUNG DITRESKRIMSUS POLDA BALI DENGAN METODE RESOURCE LEVELLING
A construction project is a series of activities that are only carried out once and are generally short-term. In the process, there is a process of processing project resources into buildings. There are three important things to consider in a construction project, namely time, cost and quality. This study uses the leveling process in Microsoft Project with the trial-and-error approach method. The resource leveling process is carried out by changing the maximum limit of labor usage in the resource sheet, by selecting the max-unit section. In the max-unit, changes are made gradually so that leveling can be done because it is still overlocated and fluctuating. In the calculation, it can be seen that the amount of working time before leveling is 99 days with a total cost of Rp. 696,175,000. After the leveling process, there is a difference in working time of 12 days. This does not affect the duration of project completion, which is 210 days, because the leveling is carried out on a schedule that is overlocated and fluctuating, namely from the third week to the sixth week. The cost before leveling is Rp. 707,392,000, and after leveling it becomes Rp. 696,175,000, so the difference in costs obtained before and after leveling is Rp. 11,217,000. This occurs because the leveling process focuses on equalizing existing resources without having to add resources again. The number of workers for 13 weeks before the leveling process was 6,316 people. While the number of workers obtained after the leveling process was 6,216 people. The difference obtained for the number of workers is 100 people.
ANALISIS KINERJA RUAS JALAN BYPASS NGURAH RAI AKIBAT ADANYA PERSIMPANGAN DI JALAN MATAHARI TERBIT SANUR
One of the intersections in Denpasar City that has traffic problems is the Matahari Terbit intersection located on Jalan Bypass Ngurah Rai. This study aims to determine the performance of the Ngurah Rai Bypass section due to the intersection on Jalan Matahari Rindu and to analyze the level of congestion that occurs on the road section. This research uses quantitative methods. Sample determination is carried out by observing traffic conditions along 400 meters and then recording vehicles passing according to vehicle type. The results of this study indicate that the peak hour volume analysis on weekdays or effective is 2359.35 pcu/hour and on holidays it is 2399 pcu/hour. The total weight of side obstacles is 179.7 on weekdays and 134 on holidays. The results of the road section performance analysis concerning the Indonesian Road Capacity Manual (MKJI) 1997 on weekdays and holidays produced a degree of saturation (DS) value > 1, which was 1.75 on weekdays and 1.78 on holidays during peak hours. The level of service (LOS) on the Ngurah Rai By Pass road was determined in category F, namely the flow was blocked and there was a long queue of vehicles, very high traffic density and low volume after congestion for a long duration and a queue, speed and volume decreased to 0. This shows that an intersection on Jalan Pantai Matahari Terbit causes significant traffic congestion and accumulation, especially from north to south (direction of Denpasar City to Ngurah Rai Airport).
PENGARUH KARAKTERISTIK PENGENDARA TERHADAP FATALITAS KORBAN KECELAKAAN YANG MELIBATKAN MODA SEPEDA MOTOR DI KABUPATEN GIANYAR
The increasing number of motorcycles in Indonesia, especially in Bali and Gianyar Regency, is not balanced by adequate road infrastructure and public transportation, resulting in an increase in traffic accidents. The main factors causing accidents are humans, vehicles, and roads and the environment, with human factors as the dominant cause. This study aims to analyze the influence of driver characteristics on the fatality of victims of traffic accidents involving motorcycles. This quantitative study involved 400 respondents from Gianyar Regency through the distribution of questionnaires. Validity and reliability tests were carried out, and data analysis used multiple linear regression with F tests and t tests. The results of the study showed that the variables of young age that meets the requirements (X1.2), not attending school (X2.1), physical and psychological conditions of drivers (X3), and driving with poor concentration (X4.2) have a significant positive effect on accident fatalities. Simultaneously, the four variables also have a significant effect with F count = 54.892> F table = 0.070. The regression model obtained is: Y = 0.249 + 0.098X1.2 + 0.077X2.1 + 0.142X3.2 + 0.159X4.3 + e. In conclusion, driver characteristics have a significant influence on the fatality rate of traffic accidents in Gianyar Regency.
ANALISIS KINERJA RUAS JALAN KOLEKTOR PRIMER PROVINSI BALI
Congestion is one of the indicators of poor performance of a road section, which is caused by 2 factors, namely macro and micro factors. The influence of macro factors on the Canggu Highway corridor can be clearly seen from the uncontrolled use of land. The influence of micro factors is the large number of private vehicles used at the same time. The rapidly growing tourism sector in Canggu Village has an impact on the rapid development of tourism infrastructure, employment absorption, urbanization, and population growth. This study aims to carry out a performance analysis of the Canggu Highway section, North Kuta, Badung Regency. Field data collection was carried out using a survey method to obtain traffic volume and travel time data. Field data analysis used the 1997 MKJI Method. Based on the results of the analysis, the highest vehicle volume (Q) was 2,235.9 smp/hour; average speed 41.34 km/hour; Free flow speed 41.85; Road section capacity (C) reached 2,453.4 smp/hour; Degree of saturation (DS) 0.90; and level of service E, where traffic volume is close to or equal to road capacity.
ANALISIS BIAYA INVESTASI AIR CURAH PADA SISTEM PENYEDIAAN AIR MINUM (SPAM) BENDUNGAN TAMBLANG DI KABUPATEN BULELENG
Buleleng Regency has sub-districts that still experience a shortage of raw water. Tamblang Dam is one of the sources of raw water that will be utilized to meet the needs of raw water in Buleleng Regency. Given the extreme topographic conditions in Buleleng Regency, an economic feasibility study is needed which is used as a reference for the implementer of development and becomes a standard for the feasibility of this infrastructure development. Tariff determination can be done by calculating the capex and opex. Capex is a component of the operational costs required and opex is the investment cost of development. Raw Water consists of a Transmission Unit consisting of Preparatory work for permits, with the source of funds from the APBN, Consulting Services and Stages of Supervision services from the source of funds from the APBN, Construction Work Civil Works, Mechanical Electrical Works IPA and JDU, Mechanical Electrical Works Distribution Reservoirs with the source of funds from the APBN while in the Production unit the preparation work, planning and supervision of the Distribution Reservoir uses the APBD budget. The total value of the overall SPAM Tamblang Reservoir RAB in Buleleng Regency is Rp299,887,860,916.13 plus a tax of Rp332,875,526,000.00.
PERBANDINGAN KINERJA STRUKTUR KOLOM BULAT DAN KOLOM PERSEGI BETON BERTULANG TERHADAP BEBAN GEMPA DENGAN ANALISIS PUSHOVER
Column is a vertical structural element that functions to absorb axial loads and transfer them to the foundation. The structure of this column consists of reinforcement and concrete which is a combination of tensile and compression resistant materials. The column carries a combination of axial loads and ultimate moments simultaneously. The column must have strength where the strength of the column must exceed the working load. The purpose of this study was to obtain differences in the performance of reinforced concrete building structures using circular and square columns due to earthquake loads. The research method used is a quantitative method with the help of SAP2000 software with nonlinear Pushover analysis. There are two models in this study, namely Model M1 is a square column model and model M2 is a circular column model. The results of the analysis show that the behavior of the structure for lateral deformation in the X direction of the square column is stiffer than the round column, while the lateral deformation in the Y direction of the circular column is stiffer than the square column. This is influenced by the inertia of the cross-section and the number of columns in each direction is different. The forces in the square column are 1% greater, the shear force is 62% smaller and the axial force is 24% greater than the circular column. The square column model with IO performance level has the ability to accept lateral loads and deformations on a larger capacity curve compared to circular columns for X and Y direction earthquakes.
ANALISIS FAKTOR PENYEBAB TERJADINYA (CCO) PADA PROYEK PEMBANGUNAN TEMPAT KULINER DAN POS JAGA TAMAN KOTA DENPASAR
In implementing construction projects, problems are often faced, one of which is the occurrence of changes. This cannot be avoided on most projects due to the uniqueness of each project and limited time and costs in the planning process. For this reason, adjustments need to be made and this often results in changes in costs and changes in project implementation time. In turn, adjustments made must also be accommodated in administrative and contractual aspects in the form of a Contract Change Order (CCO). The aim of this research was to determine the factors that cause CCO, and to find out the factors that cause CCO that are most dominant in the implementation of construction projects for culinary establishments and park guard posts in the city of Denpasar. This research uses a quantitative descriptive method, where there are 41 factors that cause CCO. The data analysis method was carried out using the cut off point method. The results of the research show that there are 33 factors that cause CCO in the construction of culinary establishments and guard posts identified from the results of literature studies, interviews and questionnaires with 30 respondents, and the most dominant factors that cause CCO are found to be 11 factors out of 33 factors- The most dominant factor causing CCO. Of the 11 factors, the highest average value is in variable X41, namely changes in quality and material specifications of 3.87 and the lowest is in variable.
ANALISIS PENINGKATAN PENGGUNAAN SEPEDA MOTOR DI KOTA DENPASAR
Currently, the motorcycle population in big cities in Indonesia is increasing very rapidly. Motorcycles are the most popular mode of transportation in Denpasar City. The increase in the use of motorcycles (SPM) has an impact on congestion, air pollution and high traffic accidents involving SPM. This study aims to analyze the increase in the use of SPM in Denpasar City, involving the variables of Household Characteristics, Costs, and Advantages of SPM. Primary data collection was carried out by distributing questionnaires, as many as 400 copies distributed throughout the sub-districts in Denpasar City. The questionnaire contains a Likert scale, containing statements, where respondents provide their perceptions through the available answer choices. Analysis of public perception data was analyzed using multiple linear regression statistical methods. Based on the results of the analysis, the variables of Household Characteristics, Costs, and Advantages of SPM have a significant positive effect on the Increase in the use of SPM, each with tcount = 6.110; 6.847; and 7.865> ttable = 1.966; and all sig values. 0.000 < 0.05. The influence of the three variables together is Fcount = 209.162 > Ftable = 0.072. Sig. value = 0.000 < 005. The equation model obtained is: Y = 0.296X1 + 0.294X2 + 0.290X3 + e.
ANALISIS PERSEPSI KEBISINGAN PADA RUAS-RUAS JALAN DI SEKITAR PERUMAHAN NASIONAL MONANG-MANING DENPASAR-BARAT
The urban population continues to increase due to uncontrolled urbanization. This increase in population is in line with the increasing ownership of private vehicles which causes an increase in the volume of vehicles on the roads. On the other hand, it is very difficult to increase road capacity due to the dense use of land. As a result, the volume of traffic exceeds road capacity, causing congestion and impacting noise. This study was conducted in the National Housing Monang-Maning area, West Denpasar, an area that experiences noise exceeding the noise level standard. The purpose of this study was to analyze public perceptions of noise levels. A total of 125 questionnaires were distributed to people living in the area. This perception data was analyzed using multiple linear regression statistics. The results showed that the variables Traffic Volume, Road Conditions, and Population Number had a significant positive effect on the Noise Level that occurred in the Perumnas Monang Maning area, both partially and simultaneously. The Sig. values ??were obtained, respectively, of 0.000 <0.050; t count of 6.263; 4.737; 8.360 > ttable = 1.980; and Fcount = 72.763 > Ftable = 0.071; determination coefficient R2 = 63.50%; obtained model: Y = 5.331 + 0.295X1 + 0.229X2 + 0.344X3. The Population Variable has the largest coefficient, which means it has the greatest influence on noise levels
PEMELIHARAAN KONSTRUKSI JALAN DENGAN METODE SDI
The Dawan-Pesinggahan Road section is one of the sections that has the status of a district road in Klungkung Regency. The Dawan Pesinggahan Road section is located in Dawan District, Dawan Village and Pesinggahan Village, which has a length of 3,300 km and an average width of 4.5 m. The Dawan – Pesinggahan Road section has existing conditions in 2021, namely 3,300 km in good condition, 0.9 km in moderate condition and there are conditions of light and heavy damage. In 2022, there will be a lot of road damage which will cause the condition of the road to decline and it is very necessary to assess the condition of the road so that we can find out what measures will be taken to restore road stability on the Dawan-Pesinggahan Road Section. Assessment of road conditions using the SDI method in Klungkung Regency was carried out on the Jl. Dawan – Stopover. The selection of this section as a sample was due to time constraints and the district road section used as a travel center in Klungkung Regency which needs to receive more attention through road management. Apart from that, the section used is a road section that visually has road damage. This research was carried out because there are still damaged roads that need to be treated quickly. This research aims to analyze road conditions, analyze the type of treatment and obtain costs for handling the road section. The data used in the research are primary data and secondary data. Primary data was obtained through a survey of road conditions by measuring road damage, while secondary data was obtained from the community development sector of the Klungkung Regency PUPRPKP Service, namely Klungkung Regency road decrees, Klungkung Regency road maps and basic Klungkung Regency road data. The research stages are, identifying road damage by taking measurements, data recapitulation by processing surveys, data analysis using the SDI method and estimating costs to repair the road. Assessment results for the Jl. Dawan – Pesinggahan Crocodile cracks at 13.54%, random cracks 18.71%, transverse cracks 17.06%, patches 14.66%, holes 12.03% and subsidence 13.24% and the estimated cost required to maintain this road section is IDR. 3,864,775,688.95
PENGARUH BELANJA ONLINE TERHADAP PERILAKU PERJALANAN BELANJA DI KECAMATAN KUTA
Advances in telecommunications technology can be used to hold meetings, distance learning processes, recreation, and online shopping without having to travel to the store. A person's decision to shop online will indirectly influence a person's travel behavior, such as substitution (online shopping replaces conventional shopping), modification (changing the characteristics of the shopping trip), complementary (complementing the shopping trip), or neutral (no effect on the shopping trip). The purpose of this research is to analyze the factors that influence online shopping activities on the travel behavior of people who live in the Kuta District Area. The primary data collection method was carried out by observation and distributing questionnaires containing closed questions to 100 respondents. The data analysis method uses multiple linear regression statistics. The results of the analysis show that the trust aspect, the time and cost aspect, as well as the information and promo aspect have a significant positive effect partially and simultaneously on the travel behavior of people who live in the Kuta District area to use online shopping system services. The resulting equation model is: Y = 2.501+ 0.254X1 + 0.376X2 + 0.267X3, where the time and cost aspects have the greatest influence compared to the trust and information aspects. The model's ability to predict is very strong as indicated by the coefficient of determination (R2) of 81.0%.
VARIASI SHEAR KEY TERHADAP STABILITAS DINDING PENAHAN TANAH KANTILEVER BETON BERTULANG
Stability parameters are very important in the analysis and design of reinforced concrete cantilever retaining wall structures. One of the parameters to increase the stability of this retaining wall is to add a shear key structure. Shear keys can increase wall stability, resist shear, increase stiffness, resist lateral loads, and increase load capacity. The purpose of this research is to determine the level of stability (overturning and shearing) of reinforced concrete cantilever retaining walls by varying the shear key dimensions with the same cross-sectional area. The method used is a quantitative method using data on the properties of soil materials, reinforced concrete, and the geometry of retaining wall structures. The analysis uses the help of Geo5 software, which is geotechnical software for solving problems in the geotechnical field. In this research, four models of reinforced concrete cantilever retaining walls have been created, including model 1 (b/h = 0), namely the model without a shear key, model 2 (b/h = 1), namely square shear key, model 3 ( b/h = 1/4) is a vertical rectangular shear key and model 4 (b/h = 4/1) is a horizontal rectangular shear key. The results of the analysis produce rolling stability with an increase in rolling moment and a decrease in moment of resistance on average of 8.32% and 4.43% respectively for the model without a shear key with a maximum rolling safe factor in the horizontal rectangular shear key model of 2.24. Likewise, the shear stability of the model with a shear key results in an increase in ground shear force and a decrease in active shear force on average of 11.76% and 105.93% respectively compared to the model without a shear key with a maximum shear safe factor in the horizontal rectangular shear key model of 3.96.
PENGARUH SERBUK BATU PARAS BELAYU SEBAGAI SUBSTITUSI SEMEN TERHADAP KUAT TEKAN BETON
Cement is the most important building material in making concrete, cement is formed from the oxidation process or heating of limestone using coal at high temperatures. The heating process produces excess CO? which has a negative impact on the environment. So in this research, the researchers conducted research on the effect of sandstone powder (SBP) as a substitute for Portland cement (SPI) in concrete mixtures because sandstone contains silica and alumina minerals which are suitable for use. as pozzolan. The test object used in this study was a cube measuring (150 x 150 x 150) mm, with the ratio: (0% SBP: 100 SPI), (2.5% SBP: 97.5% SPI), (5%SBP: 95% SPI) and (10% SBP: 90% SPI) which were tested at 28 days of age. Concrete mix planning (mix design) is carried out based on SNI 7656-2012 with concrete design quality 20.75 MPa, classified as concrete quality for building structures. From the test results, it was found that the effect of sandstone powder as a cement substitute in the concrete mixture increased the compressive strength of the concrete at a percentage of 2.5% -5%, and at a percentage of 10% the compressive strength of the concrete decreased.
KAJIAN TEKNIS GEDUNG BETON BERTULANG DAN PERENCANAAN PERKUATANNYA
Changes in the function of existing buildings with changes in load functions that exceed the design load cause structural failure. The impact of structural failure varies from light to moderate, to severe damage and collapse. Thus, structural failure requires efforts to strengthen the structure with good reinforcement methods that are easy to carry out on-site. The existing building studied is the Villa Minggu Seminyak building, which is located on Jl Kunti, Gg Mangga, Seminyak, Kuta, Badung, Bali. To get good and easy-to-do reinforcement results, an investigation is carried out to obtain data on damage to existing buildings, and then analysis and evaluation are carried out. Models and analyses were carried out in 3D using SAP2000 software. The purpose of this research is to determine the behavior of existing structures before and after strengthening. The strengthening method used for column structural components is the Concrete Jacketing method. The results of the analysis show that the capacity of the existing beams and columns is insufficient, where the existing beam B1 reinforcement area of 896.47mm2 is smaller than the required reinforcement area of 1023 mm2, the axial force capacity and ultimate moment of column K1 are outside the interaction diagram and the structure's vibration time is 1.193 seconds smaller than allowable vibration time of 0.351 seconds. Thus, strengthening of the beams and columns is required. The results of the analysis and design show that concrete jacketing reinforcement requires 10 cm thick concrete with 16D13 mm main reinforcement and Ø10-75 mm stirrup reinforcement. This reinforcement can increase the axial load capacity of the column by 314.5%. Strengthening the beam with the addition of WF Steel was able to increase the ultimate moment of the support by 38.7% and the ultimate moment of the field by 39.6%. The ultimate shear force increases by 121.4%. By strengthening the columns and beams, the vibration time of the structure has a shorter duration of 48%, so the structure becomes stiffer.
ANALISIS PENYEBAB KEMACETAN LALU LINTAS PADA JALAN KOLEKTOR PRIMER KABUPATEN BADUNG
The development of an area can be seen in the development of its transportation system. The Canggu village area is an area experiencing rapid development which has an impact on traffic density. The Canggu highway is one of the roads that serves the tourist area corridor, with heavy traffic flow poor road geometric conditions, and side obstacles that reduce road capacity. The purpose of this research is to analyze the perceptions of people who live along the Canggu highway corridor regarding the factors causing traffic congestion in the Canggu Village area. Primary data was obtained by observation and distributing questionnaires containing closed questions to 400 respondents. The data analysis method uses multiple linear regression statistics. The results of the analysis show that traffic flow, road geometrics, and side obstacles have a significant partial and simultaneous effect on traffic congestion on the Canggu highway section. Obtained Model Equation: Y=1.514+0.378X1+0.363X2+0.304X3+e, where traffic flow has the greatest influence compared to road geometry and side obstacles. The model's ability to predict is very strong as indicated by the coefficient value. determination (R2) was 89.1%.
EVALUASI PENERAPAN KESELAMATAN DAN KESEHATAN KERJA (K3) PADA PROYEK PEMBANGUNAN PASAR SINGAMANDAWA TAHAP I
The rapid development of the construction industry in addition to providing benefits also poses risks. The construction industry has quite a big risk and this industry can be said to be the most vulnerable to work accidents. ISO 45001: 2018 can be defined as an International Standard that regulates the requirements for occupational health and safety management systems. This study aims to determine the evaluation and application of OHS according to ISO 45001: 2018 regulations in the Phase I Singamandawa Kintamani Market development project. The type of data used is primary data obtained from distributing questionnaires and interviews as well as secondary data obtained from library sources. Data processing was carried out using Microsoft Excel and SPSS version 25. The type of research used was a combination research that combines qualitative and quantitative research, using 3 techniques, namely antecedents, transcendents, and output. The results showed that the antecedents' techniques of staff and workers stated they were very suitable with an average of 40.00 and 41.08 for the OHS policy and planning implementation stage, that the applicable laws and the commitment and leadership carried out were appropriate because of the -the contractor encourages workers to apply OHS. The averages of 37.09 and 38.04 for the OSH implementation stage are also very appropriate. In the transcendents technique, staff and workers stated that they were very compatible with an average of 34.09 and 34.63 with early identification of hazards and risk control. Whereas for the implementation of OHS, the average is 45.64 and 46.00, very appropriate, because there is supervision according to standards. At the output stage, staff and workers stated that they were very suitable with an average of 18.82 and 18.96 for the OHS performance monitoring and evaluation stage. Based on the results of the evaluation of the application of OHS in the Singamandawa Market development project, it is following ISO 45001: 2018, namely by taking the PDCA (Plan Do Check Action) approach.
ANALISIS DURASI DAN BIAYA DENGAN METODE RESOURCES LEVELING PADA PEMBANGUNAN BALAI SERBAGUNA BANJAR WONGAYA BETAN TABANAN
In the Multipurpose Hall Advanced Development project in Banjar Wongaya Betan, Tabanan Regency, there was an overall allocation of human resources which caused a mismatch between plans and realization in the field, where implementation experienced delays in the 6th, 7th, and 8th weeks. Therefore, it is necessary to develop a human resource leveling method to minimize deviations between needs and the availability of existing human resources, namely by Resources Leveling using the help of Microsoft Office Project 2019. The Resources Leveling method is carried out by shifting non-critical activities within the available grace time so that available resources are not overloaded. This research aims to analyze the duration of activities and costs required for the project through descriptive research methods with a quantitative approach and using secondary data sources from the implementing contractor, namely CV. Sustainable Gold. Based on the analysis results, it was found that the number of human resources that were initially overallocated could be optimized after the leveling process was carried out using the resource leveling method with Microsoft Office Project 2019. The leveling process affected the project duration, from 90 days to 103 days. This is because of max. units of labor that the contractor is able to provide cannot meet the max. units required for project implementation. Meanwhile, the cost of human resources required is not affected by the leveling process, namely, it still costs IDR 71,981,700.
PERILAKU STRUKTUR BETON BERTULANG DENGAN DAN TANPA PENGARUH LUBANG PINTU DAN JENDELA PADA DINDING
Infill walls are structural components in buildings that have a room-dividing function. For structural design, infill walls are generally modeled as an open frame. However, if infill walls are combined with structural frames in modeling, these infill walls will contribute better to structural rigidity. In this research, three models have been made. Model M1 is an open frame model, model M2 is a Fully Infilled Wall Frame model and model M3 is a Fully Infilled Wall Frame model with door openings. The purpose of this study was to determine the behavior of reinforced concrete frame structures with and without taking into account the effect of the presence of door and window holes in the walls due to earthquake loads. The research method used is a quantitative method with Pushover nonlinear static analysis. The results of the analysis show that the Fully Infilled Wall Frame model is 23.97% and 8.1% stiffer than the open frame model and the Fully Infilled Wall Frame with 24.8% door openings and 41.6% window openings due to the X and Y direction earthquake loads.
ANALISIS KUALITAS LAYANAN ANGKUTAN UMUM PENUMPANG (MINIBUS) KOTA DENPASAR BERDASARKAN PERSEPSI MASYARAKAT DENGAN METODE CONFIRMATORY FACTOR ANALYSIS
Public transportation in the city of Denpasar reached its peak in the 1990s with the latest fleet being minibus-type public passenger cars with a capacity of 8-10 people. Along with the pace of motorization and ease of buying cars and motorbikes, there can be an increase in private vehicle ownership in the community. The interest of the people in Denpasar City's use of public transportation has decreased significantly. The community can finally feel and have perceptions about the difference between the advantages of using private vehicles and the quality of public transportation services. The purpose of this study was to explore public perceptions of the quality of public transport services, by distributing 400 questionnaires in all sub-districts of Denpasar City. Data on respondents' perceptions were analyzed using structural equation modeling (SEM). Based on the results of the analysis, there are seven indicators that shape people's perceptions of the quality of public transport, namely: small fleet availability, long waiting and travel times, less convenience, irregular time headway, low frequency of arrivals, and accessibility. The reduced availability of public transport is caused by long waiting times and low frequency of arrivals. Low accessibility due to long travel time. Thus, the quality of services like this in the community makes the use of public transportation in the city of Denpasar decreased.
PERBANDINGAN PRODUKTIVITAS KERJA LAUNCHING METHOD SYSTEM DENGAN MANUAL METHOD PADA PEMASANGAN GELAGAR JEMBATAN
Implementation planning is a formulation in the control of the overall construction project activities, so it will get a method or a good technical way so that with limited resources - obtained maximum results. Increase the productivity of work comprehensively to determine the value of the success of a construction project. Success in a project is also determined by equipment resources. The analysis carried out is the planning time and cost of the project, presenting the optimal time period when associated with project costs by way of shortening the completion period After obtaining the optimal time and cost the results are compared with the planning time and costs compiled by the prusahaan, the thing This is to know the time and cost efficient. Then to compile the scheduling needs of the project's daily workforce. From the analysis obtained the efficiency of time achieved by each method is, the time reached by the Manual method with the help of the pulley tool is 91 hours or rounded up to 12 days with the help of 7 workers and 1 foreman, while the time achieved by the use of tools 1 mobile crane that is 27.2 hours or rounded up to 4 days. based on the productivity of the time already achieved each method can be deduced use Launching method system more efficient 8 days in appeal using the Manual method with the help of the pulley tool. The efficiency of labor cost and tools achieved by each method ie, Costs achieved by using manual labor 26,590,200,00 using 7 workers and 1 foreman in 91 hours or rounded up to 12 working days, while the fee which is achieved by using 1 mobile crane device that is 14,071,922,28 in 27,2 hour or d to become 4 working days. The use of more efficient methods in time and the use of a labor force is the method of using a mobile crane/launching method system which can assist contractors to work within the specified time.
ANALISIS PRODUKTIVITAS TENAGA KERJA PADA PEKERJAAN PLAT LANTAI DENGAN METODE WORK SAMPLING
Slab structure work in building construction is a very important job because floor slab work has a large volume. Labor productivity is very important in carrying out a job, the output of the construction sector can be seen from the quantity of work that has been done, while the input is the amount of resources used such as labor. The purpose of this study was to determine the amount of labor required for every 1 m2 (OH) and the standard time for labor productivity in completing 1 m2 of floor slab work. The method of collecting primary data is the source of research data obtained directly, such as the number of workers and observation of sampling data, while secondary data is obtained from projects such as working drawings. The data is then processed using Microsoft Excel. This research is a type of quantitative research with a work sampling method. The results of research on floor slab work in the Udayana University Faculty of Medicine Building Construction project show that the calculation of the volume of labor per day (OH) requires 0.011 OH masons and 0.011 OH workers and the results of calculating the standard time to complete 1 m2 of floor slab work is 3.15 minutes/m2 . The Calna Villa project shows that the calculation of The volume of labor (OH) requires 0.039 OH masons and 0.039 OH workers and the results of calculating the standard time to complete 1 m2 of floor slab work is 10.37 minutes/m2.