JOURNAL TEKNIK SIPIL DAN INFRASTRUKTUR
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ANALISIS SISTEM TRANSPORTASI DALAM KAMPUS UNIVERSITAS TADULAKO
Full text linkTadulako University as one of the state universities in the province of Central Sulawesi has experienced rapid development. Physical growth that continues to grow along with its academic development causes the movement of traffics activity to participate in the increase. This can cause negative impacts such as high pollution levels, vehicle density and high accident rates often occur in the campus area. This study aims to analyze the transportation system within the Tadulako University Campus. It is expected that with this research it can be obtained the description of traffic problems that occurred in the campus of Tadulako University includes network system and road geometry, parking and analyzing the policies of traffic that is currently applied in the campus of Tadulako University. Traffic surveys show that motorcycle users account for 66.8% and automobiles 33.2%. Geometric survey shows that the road in the campus is relatively good because almost all roads have been structured with asphalt with one way road system. Survey on parking location also indicate that arrangement of parking space at some faculty are required so that vehicle not parked at road body. Further research is necessary to calculate the need for parking space.
Redesain dan Perkuatan Struktur Abutmen Beton Bertulang Jembatan Sumara
Full text linkBridge is one of the most important transportation infrastructures that joining two side of highway thus the bridge is highly needed. To design a bridge geotechnical and hydrological data is crucial as well as characteristic of the river. In the case if a bridge were designed without acurately determine the 50 year return period of flood, then the bridge possibly are not save against real flood that may occur. Thus the abutment has to be redesign and retrofitted. Redesign is important to fullfill requirement of high of free space superstructure if the maximum flood occur. Redesign conducted by adding 1,6 m high of the abutment. Controlling stabilities of the abutment i.e: shear and overturning were done. Retrofitting was applied by adding longitudinal and transversal reinforcement with the same dimension and space especially at the joint of transversal reinforcement, transversal reinforcement space reduced to half of its normal space. Longitudinal reinforcement applied was D19-150 and the transversal reinforcement was ᴓ12-100. To connect the fresh concrete and existing concrete applied material were epoxy resin based produced by PT. SIKA Nusa Pratama SIKADUR®732
Pengaruh Suhu Pemadatan Terhadap Workabilitas Perkerasan Beton Aspal Lapis Aus
Full text linkAsphalt concrete-wearing cource (AC-WC) pavement is the layer that directly in contact with vehicle tires. One that affects the performance of asphalt concrete is compaction. Optimal compaction can be met if the temperature in the compaction is carried on at a good temperature and in accordance with the specifications. The purpose of this study was to determine the compaction temperature workability best value on asphalt concrete wearing cource (AC-WC) pavement. Tests were conducted on the condition of optimum bitumen content by 8 (eight) wide solidification temperature variation which were at the temperature of 70 ± 1˚C, 80 ± 1°C, 90 ± 1°C, 100 ± 1°C, 110 ± 1°C, 120 ± 1˚C, 130 ±1°C, and 140 ± 1°C. Testing was conducted by using the Marshall test instrument as substitutes for gyratory devices. Porosity measurements performed on Marshall blow mix of 2 × 5, 2 × 10, 2 × 20, 2 × 40, 2 × 60 and 2 × 75. Based on the equations of relationship between the logarithm of the number of gyratory rotation and porosity then the intercept value can be obtained which was then used to calculate workability index (WI) of the compaction temperature variations. The result showed that all of them do not show good compaction workability value, because its value is less than 6. However, from the eight variations of the solidification temperature of solidification temperature of 130 ± 1 shows the best workability with WI = 4.03
STUDI EKSPERIMENTAL PENGGUNAAN IJUK SEBAGAI MATERIAL PERKUATAN LERENG
Full text linkThe condition or shape of location of construction is often present in a non-flat terrain. Excavation and dumping of soil usually required in this condition that will result on formation of the slope. The slopes can be made steeper with the help of reinforcement such as by using geotextile, steel and other materials. For small or medium scale construction palm fiber sheet can be used as alternative material. Palm fibers are natural organic fibers that have beneficial properties such as resistant to the influence of solar heat and cold weather, resistant to weathering, and not easily rotten and durable so it can be used as an option for use as a construction material.This study aims to study the potential use of palm fibers as an alternative material for reinforcement material, especially on the slopes. Palm fibers material used in this research are materials that form a natural fiber sheet. The slope model is formed in a test tub with a width of 30 cm and a height of 80 cm. Sand from Pondo River with 50% of relative density is used as slope forming material.The results showed that the reinforced slopes with fiber sheets with 20 cm vertical spacing and 100 cm length of reinforcement on the test model were able to carry a load of 40 kN at 25 mm (1 inch) settlement, and reach 60 kN at 37.5 mm ( 1 ½ inches) settlemen
Dampak Aktivitas Swalayan Grand Hero Terhadap Kinerja Ruas Jalan Basuki Rahmat di Kota Palu
Full text linkOne of the few supermakets in Palu city which considerably crowded is Grand Hero Supermarket. This Supermarket was located on the Basuki Rahmat street. Because this road is an arterial road with highly traffic volume at certain hours, so the Grand Hero Supermarket activity will affect the performance of the road. At peak hours, many vehicles are in and out from the supermaket, disrupting theperformance of BasukiRahmat road. The aim of this research is to understand the existing condition of the Basuki Rahmat street performance with or without the activity of Grand Hero Supermaket. This research was conducted by surveying the volume of the street, side friction and travel time. The survey was carried on Wednesday 04-06-2015 and Saturday 6-06 2015. The analysis was conducted by using Manual Kapasitas Jalan Indonesia 1997 method. The results show that the performance of JalanBasuki Rahmat with no Grand Hero Supermarket’s activity has a degree of saturation 0.35. Grand Hero Supermarket with activity would increase the degree of saturation that is 0.43 that increases 22.86%. The speed of light vehicles by MKJI is 42.84 km / h. With the Grand Hero Supermarket activity, the speed of light vehicle decreased from 27.76 km/ h to 23.74 km / h or there are speed reductions of 14.49%. The level of service with the Grand Hero Supermarket activity was at B condition with DS rate of 0,4
Persamaan Empiris Sifat Mekanika Bambu Wulung
No full textThe development of the use of bamboo increased as non-wood material. The bamboo Gigantchloaatroviolacea is the most popular bamboo used as a construction material in some region of Indonesia. Some bamboo weakness are bamboo is a non-homogen material, it has non prismatic sectional form, the stems straigthness is not the same, node on the stems and a hollow inner cross section. Effects of node, internode and the stem position on mechanical properties of bamboo were evaluated. In this article, the mechanical properties of Gigantochloaatroviolacea bamboo was studied (shear strength, compression and tensile and elastic modulus). In this study, the mechanical properties of bamboo, located at different height were investigated with ISO 22157 and ASTM. The mechanical properties of bamboo at node, internode and height position were tested in air dry condition. Base on the test results of all properties strength were increased from bottom to top. An empirical equations ware determined base on spesific gravity parameter. Base on its spesific gravity the mechanical properties of bamboocan be determined
Evaluasi Kelayakan Median Beberapa Ruas Jalan di Kota Palu
Full text linkThe placement of median opening (U Turn) and the distance of inter median opening at several road in Palu city were indicated that it does not meet technical requirement so it can put the road user in dangerous situation which when the traffic flowing on the road grow higher then the risk of traffic accident will rise too. Moreover, the placement of median opening was indicated as an access road where as a place for specific activity beside the road. The existence of Garuda-Abd. Rahman Saleh as a T intersection also made an impact to the degree of saturation of certain road segment. The method that used to solve this study is based on the survey to collect the primary and secondary data MKJI 97 and median standard design analysis. The result shows that all of the placement median opening at several urban road links was not appropriate to the requirement standard then it needs reposition or any repairmen
Characteristic of Concrete made of Ternary Cementitious System
Full text linkUtilizing industrial waste materials containing pozolanic compounds has been widely investigated for cement replacement. Fly ash and microsilica are materials having significant pozolanic compounds and can be used to create ternary cementitious system. Slump of fresh concrete, porosity and compressive strength of hardened concrete were parametric study investigated in this study of ternary cementitious system. Three types of concrete mixtures, i.e. concrete mixture using original Portland cement (OPC) as normal concrete, OPC-fly ash-microslica without superplasticiser, and OPC-fly ash-microslica with additional superplasticiser have been investigated. Fresh concrete using fly ash and microsilica demonstrated having higher slump and lower porosity than normal concrete. Compressive strength of concrete using fly ash and microsilica were higher than normal concrete. Utilizing fly ash and microsilica as ternary cementitious system was found to have significant effect on compressive strength and porosity of hardened concrete
Analisis Ketersediaan Air dengan Metode F.J Mock Pada Daerah Persawahan Desa Poboya Palu Sulawesi Tengah
Full text linkThis study aims to analyze the availability of water and determine farming patterns planning for aggriculture. Research process begin from collecting data then conducting hidrology analysis to know if the water is sufficient to meet the water needs in fungsional field and planning the suitable farming patterns. To determine the ratio between the need and the availability of water, in this case for aggriculture sector, the analysis of hydrology and the calculation of water requirement on the paddy field were done. There are some methods which can be used: Penman’s Method modification, used to calculating the value of the evapotranspiration by considering the related meteorological factors such as the air temperature, humidity, wind speed, and sun radiation. By using F.J. Mock Method, the amount of water flow obtained from rain’s data, characteristics of hydrology flow area, and evapotranspiration can be calculated. According to the results of data analyzing with 46.642 km2 catchments area, show that availability of water in Poboya’s Irrigation field in the middle of January is 0,038 m3/sec meanwhile water requirement is 0,0078 m3/sec. From the result it can be concluded that water supply in Poboya’s Irrigation is enough to fullfill the needs of water on t he functional area, as well as by a farming pattern plans of Rice – Rice – Palawija
PENGARUH PERUBAHAN TATAGUNA LAHAN TERHADAP KARAKTERISTIK HIDROGRAF BANJIR DI DAS MIU
Full text linkThe Miu basin is one of the watersheds located in Sigi District, Central Sulawesi province with an area of 10,471,71 km2. In the last few years, Miu basin frequently got flood disaster and sediment. The change of watershed response to rain due to land use change is pointed to be the cause of frequent floods. It is necessary to overcome the frequent flooding in Miu basin by conducting hydrological analysis to determine the peak discharge change due to land use change. In this study, the analysis of the area of rain with Polygon Thiessen Method was conducted with the help of ArcGIS 10.3 software. ArcGIS 10.3 software is also used to analyze land use change. The process of diversing the rain into a stream by calculating the effective rainfall (Peff) using the Soil Conservation Service-Curve Number (SCS-CN) Method. For Design Flood is calculated by the Nakayasu HSS Method. The research shows that the value of Curve Number as the determinant variable of land function change at Miu basin of 2003, 2009 and 2014 did not experience significant change. The decrease of flood peak discharge by HSS Nakayasu method in 2003, 2009 and 2014 respectively 525 m3 / sec, 366,4 m3 / second and 154,3 m3 / sec. The decrease in peak flood discharge is due to the fact that in addition to the non-significant land use change, the area rainfall as the input in the flood analysis of the designs of those years decreased from 2003 to 2014.