IJTI (International Journal Of Transportation And Infrastructure)
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PUSHOVER ANALYSIS OF THE STRUCTURE A 10 FLOOR BUILDING WITH ATC-40
Full text linkThe concept of earthquake-resistant buildings is very meaningful to try on buildings located in certain earthquake areas, especially in Indonesia considering the situation which is located in a shock area with a fairly high intensity of events.
The purpose of this research is to determine the seismic performance criteria of the planned structure using the SMRF (Special Moment Resisting Frame) structural system from the results of the displacement values using the ATC-40 code, showing the yielding scheme (plastic joint distribution) that occurs from the calculation results of the software program, knowing the pattern of building collapse so that it can be known joint- joint that is damaged and damaged from the pushover analysis.
From the results of the research, the building structure is able to provide nonlinear behavior which is indicated by the initial phase and the majority of the occurrence of plastic joints occurs in new beam elements and then column elements and has fulfilled the earthquake-resistant building concept, namely strong column - weak beam.
The results of the structural performance evaluation according to the ATC-40 rule that the Performance Level of the SMRF building in the x and y directions is at a Performance Level of 0.011 in the Immediate Occupancy (IO) category where the building is safe during an earthquake, the risk of loss of life and structural failure is not too significant, the building does not experience significant damage, and can be reused and not disturbed by repair problems, where the strength and stiffness are approximately the same as the conditions before the earthquake
Analysis of Direction Zones That Influence The Traffic Impact of Shopping Centers That Have Operated
Full text linkIdentifying Accident Severity Factor On Surabaya Secondary Arterial Roads
Full text linkOne of the CBD (Central Business District) areas of Surabaya is located at the center of the city, which is also known as the CBD Tunjungan area. CBD Tunjungan area is a hub for trade and services and has important accessibility which is surrounded by secondary arterial roads. Some secondary arterial roads which have access and high mobility to the CBD Tunjungan Area are Darmo Raya Road, Urip Sumoharjo Road and Basuki Rahmat Road. The high activity and mobility in the CBD area cause several transportation problems, one example is traffic accidents. The traffic accident data by the Directorate of Traffic and City Resort Police of Surabaya show that there are quite a several traffic accidents on these two roads. Traffic accidents are divided into three levels of severity i.e. slight, serious, and fatal injuries. To obtain the probability model of traffic accidents within every accident severity, it is necessary to do an analysis using the multinomial logistic regression method. The independent variables such as vehicle speed, lane width, accident time, and accident type, are considered to affect the equation model. Thus, it can be discovered the variables that affect the probability at the three levels of traffic accident severity
ANALYSIS OF POST EARTHQUAKE POTENTIAL LIQUEFACTION IN SAMBIK BENGKOL VILLAGE, GANGGA DISTRICT, NORTH LOMBOK REGENCY.
Full text linkLiquefaction is one of the impacts caused by earthquakes, where liquefaction is a phenomenon of loss of shear stress strength in the soil due to increased pore water pressure caused by earthquake vibration loads. Liquefaction has a fairly detrimental impact on local residents, and can cause damage to infrastructure buildings. This analysis was conducted to determine the potential for liquefaction that occurred after the earthquake that hit Lombok Island on July 29 2018, the earthquake that shook Lombok Island had a magnitude of 6.4 on the Richter scale. As a result, at least 20 people died, 401 others were injured, and more than 10,000 infrastructure buildings were damaged by the earthquake. In this analysis, using the Simplified method proposed by Seed and Idriss (1981), the initial step that must be done is to collect the results of the soil Nspt test in the field, as well as the acceleration of the earthquake that occurred in the field. Then a comparison of the value of the Cyclic Stress Ratio (CSR) with the value of the Cyclic Resistance Ratio (CRR) is made. Based on the calculations carried out on soil testing at the drill point BH-01 and drill point BH-02, it was found that the soil conditions in Sambik Bengkol Village have the potential for liquefaction
Analysis of Three Armed Signal Intersections With MKJI 1997 Method
Full text linkBekasi Regency is a regency in West Java Province with a population of ± 3,899,00 Million People (Based on Statistics Indonesia, 2020). Diponegoro Highway – Setia Mekar Street Bekasi Regency is access to the main road to the city border, besides that access to residential locations, schools, and many companies which makes vehicle traffic especially during rush hour more congested by the activities on the side of the road such as slow vehicle, the ups and downs of passengers, so vehicles that stop causing long vehicle queues.
From the results of the analysis, the results of signalized intersection can be obtained on the Diponegoro Highway Setia Mekar Street Bekasi Regency. It is known that the greatest Degree of Saturation is in the Northen approach which is 1,12 with a average intersection delay is 99,21 seconds/smp. Furthermore, Alternative solutions is carried out by changing side obstacles from 0,94 to 0,95 and recycling time intersection, resulting in a decrease in the average intersection delay and improvement of indoporlen intersection service
Analysis of the Performance of Koasi K01A Public Transport During the Implementation of the PSBB
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This research shows that the average number of passengers during the implementation of the PSBB is reduced by 50%, although there are still some Koasi K01A whose number of passengers exceeds the health protocol standard recommended by the government. Respondents considered the feasibility of the K01A Koasi to operate as still quite feasible, because there were still some respondents who still needed this Koasi K01A to travel so that it could be judged that the K01A Koasi was still feasible to operate to serve its passengers, only had to replace the old Koasi units with a newer unit that provides comfort for Koasi K01A passengers. The comfort and safety provided by the K01A Koasi manager are still considered very uncomfortable and safe by respondents
Does Continuous Improvement Can Push BRT Ridership? (Case study of BRT TransJakarta)
Full text linkBus Rapid Transit (BRT) has been one of the most popular transit mode which provides fast and easy access to meet the transportation needs in developing country. It offers the opportunity to create a high-quality mass transit system at affordable cost, which is particularly important for developing countries. Despite of many BRT systems have been implemented in various cities in developing countries, there are a limited number of studies exploring how to increase BRT's ridership. The main goal of this study is to gain insights of Transjakarta and DKI Jakarta's government strategy to improve the BRT performance. It is important to examine the Transjakarta dan DKI Jakarta's government implemented strategies of BRT system along with the policy reforms analysis that affects the ridership. Furthermore, this study also intends to enhance the understanding of the underlying acts that may influence on BRT ridership. Therefore, these act forms can be used as a benchmark for implementing BRT systems in other cities in Indonesia. For this purpose, conceptual frameworks, explaining the relationship between the daily BRT ridership and the potential factors, are developed using information collected from the operational of TransJakarta. This study captured the ridership patterns and data during the last 3 years, from 2017 to 2019. Transport integration as well as increasing network and number of fleets are found to be the main factors which can boost the ridership. In addition, the research presents some inputs to formulate some development strategy for operating BRT which can be applied in other cities, especially in Asia
The Effect of Substitution of Coarse and Fine Aggregates with Shells of Blood Clams and Cement With Fly Ash and The Additional of Superplasticizer Against The Compressive Test
Full text linkConcrete generally composed of four main constituent materials namely portland cement, fine aggregate (sand), coarse aggregate (gravel), and water. The large amount of use of concrete in construction results in an increase in the demand for concrete materials, thus triggering the mining of concrete materials on a large scale which caused the decline in natural resources in Indonesia for the need for concrete material. If needed, substitute materials can be created in such a way as to change certain properties of concrete to function better, economically, and environmentally friendly. The waste of fly ash and shells of blood clams can be used as a substitute for cement, coarse aggregates and fine aggregates. The purpose of this research is to determine the compressive strength of the variation of the percentage of fly ash substitution with cement and shells of blood clams with coarse and fine aggregates and the addition of superplasticizer to the compressive strength of concrete. The research is using experimental methods, test specimen samples will be tested for workability, density, and compressive strength. Variable in the research are (1) related variables : density and compressive strength, (2) independent variable : variation of 0%, 5%, 10%, and 15% of blood clam shell needs of the total weight of coarse aggregate. Based on the results of the research concluded that (1) Slump value of the samples 0%, 5%, 10%, and 15% consecutive is 97mm, 89mm, 151mm, 149mm. (2) density of concrete with substitution of blood clam shells with coarse aggregate with samples 0%, 5%, 10%, and 15% consecutive is 2284 Kg/m3, 2308 Kg/m3, 2297 Kg/m3, and 2293 Kg/m3. (3) Testing of concrete compressive strength at 28 days with substitution of blood clam shells with coarse aggregate with samples 0%, 5%, 10%, and 15% consecutive is 21.44 Mpa, 24.38 Mpa, 19.02 Mpa, and 19.34 Mpa. The composition of substitution of blood clam shells with coarse aggregate of 5% has a higher compressive strength than other compositions
The Effect of Palm Fiber as a Material of Added Fiber and Charcoal Powder as Cement Subtitution Against Strong Concrete Press
Full text linkPalm fibers are natural fibers that are difficult to rot because there is no decomposer that can decompose the fibers. In addition, in Indonesia there are a lot of palm plants where the fibers are taken from the tree. The charcoal briquette powder is the fine grains of briquette charcoal that is mashed and contains silica. This study aims to determine the effect of using palm fiber as an added material for fiber and charcoal briquette powder as a substitute for cement in the concrete mixture on the compressive strength of concrete. This study uses a mixture of palm fiber as much as 0.75 %, 1.50 %, 1.75 % and 2.75 % from the weight of fine aggregate, as well as charcoal briquettes powder 5 %, 5 %, 10 %, and 15 % of the weight of cement. The compressive strength test was carried out on the 7th, 14th, 21st, and 28th days. The highest compressive strength value was obtained in variation V.2 with a mixture of 2.75% palm fiber + 5% briquette charcoal powder on the 21st day of testing of 20.02 Mp