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Inersia : Jurnal Teknik Sipil

inersiajurnal
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Published by Universitas Bengkulu

ISSN : 20869045 EISSN : 26865017 DOI : https://doi.org/10.33369/ijts

Core Subject : Engineering,

Civil Engineering, Building, Construction & Architecture

Each volume contains two editions. The first edtion is published in April and the second one in October. This journal accomodates the research result in the area of civil engineering, i.e. Construction Management, Geotechnical Engineering, Structural Engineering, Transportation Engineering and Water Resources Engineering.

Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur

Articles 210 Documents

1 2 3 4 5

PENGARUH PENAMBAHAN PASIR SUNGAI PADA BATA MERAH TERHADAP KUAT TEKAN DAN PENYUSUTAN DI TALANG KERING KOTA BENGKULU Fitri Herlina; Elhusna Elhusna; Mukhlis Islam
Inersia: Jurnal Teknik Sipil Vol 7, No 1 (2015)
Publisher : Universitas Bengkulu

This report is the result of the research of the effect of river sand addition to red brick to the shrinkage and the compressive strength of the red brick. The production ofred bricks was done in brick factory in Talang Kering Kota Bengkulu. River sand derived from Taba Penanjung. The composition of the sand used was 0%, 5%, 10%, 15%, 20%, 25%, 30% of the weight of clay with the mold size of 10,5 cm x 21cm x 5 cm. The sample used for shrinkage sample is also used for compressive strength test as many as 140 pieces.Compressive strengthtesting refers to the SNI 03-4164-1996 and use compression tool hand operated machine with a capacity of 250kN. Compressive strength testing performed after the red brick with capping is7 days old. Mortar is made with a ratio of 1: 3 using the mount sandto produce mortar with compressive strength of 3,18 MPa. The results showed thatthe brick color is dominant yelloworange with lack of smooth surface and sharp edge. Depreciation smallest volume and weight of each of the addition of 30% amounting to 34,2% and 28,87%. Depreciation largest volume and weight of each of the addition of 15% sand by 39,7% and amounted to 32,96% without sand.Most powerful press red brick on the addition of 5% sand by 1,72MPa and the smallest on the addition of 30% sand at 1,24MPa. The resulting maximum compressive strength less than 2,5MPa so it does not meet the SII-0021-978.

PENGARUH PENAMBAHAN FLY ASH DAN KONDISI ADUKAN TANAH LIAT TERHADAP KUAT TEKAN BATA MERAH Nelly Astriani; Elhusna Elhusna; Ade Sri Wahyuni
Inersia: Jurnal Teknik Sipil Vol. 9 No. 2 (2017)
Publisher : Universitas Bengkulu

This article describes the research result of the effect of adding fly ash and water concentration of clay on red bricks’ compressive strength. Fisis characteristic and bricks’ compressive strength is according to SNI 15-2094-2000. Variation of fly ash that were used were 5%, 10%, 15%, 20%, 25%, and 30% from the weight of clay. Adding water concentration was based on three criterions of mortar clay condition, namely hard, normal, and soft. Hardmortar clayis a condition of the clay mixture which used less water than the normal mixture. Normal mixture is a condition ofthe clay mixture which usedwater based on usual concentration in brick factory. Soft mixture is a condition ofthe clay mixture that used much water than normal mixture. In this research, there are 8 sample for normal bricks and there are 144 sample for variation bricks. The optimum value of compressive strength for hard and normal mixture of variation bricks were obtained in 10% of fly ash variation which increased 33,59%, and 2,82% from normal bricks. Compressive strength for soft mixture of bricks was obtained in 5% of fly ash variation which increased 28,25% from normal bricks.

PERENCANAAN SUMUR RESAPAN AIR HUJAN UNTUK KONSERVASI AIR TANAH DI DAERAH PERMUKIMAN (STUDI KASUS DI PERUMAHAN RT. II, III, DAN IV PERUMNAS LINGKAR TIMUR BENGKULU) Kurnia Iriani; Agustin Gunawan; Besperi Besperi
Inersia: Jurnal Teknik Sipil Vol 5, No 1 (2013)
Publisher : Universitas Bengkulu

The increasing of development for supporting facilities in public life triggers transformation of land use and decreasing of open space for infiltration area. This causes surface flow (run-off) and some rainwater infiltrating into land. Therefore, it is necessary made a patch like the infiltration well which is used to patch and then infiltrate rainwater into soil slowly. The purpose of this research was to determine amount and construction of infiltration well. This research was executed in housing RT. II, III, and IV Lingkar Timur at Bengkulu City that hasnumber of house 153. This study used survey methods such as measuring,questionnaire/interviewing, and percolation test to obtain the required data. Based on the data and analysis of calculation according to SK SNI 03-2453-2002, was determined that for individual infiltration well, the form of infiltration well was circle with a diameter of 1 m and a depth of 3 m, while for communal infiltration well was circle with a diameter of 1.4 m and a depth of 3 m (by 92 pieces). The others alternative form for individual infiltration well was square with a width of 1.2 m and a depth of 1.5 m, while for communal infiltration well was square with a width of 1.4 m and a depth of 3 m (by 72 pieces). Construction of infiltration well according to Technical Instruction Applying Drainage Method with Environmental Concept In Residence Area (2002) was brick wall or red brick pair without plastered and among it given hole.

PENGARUH DUST PROPORTION TERHADAP KARAKTERISTIK MARSHALL PADA CAMPURAN SPLIT MASTIC ASPHALT Makmun R. Razali
Inersia: Jurnal Teknik Sipil Vol 6, No 1 (2014)
Publisher : Universitas Bengkulu

Split Mastic Asphalt (SMA) was developed to obtained a surface layer that is able to provide maximum wearing resistance while providing maximum resistance to deformation heavy traffic. For further developments and experience SMA is suitable for the construction of new roads, road improvement and maintenance of roads. This research to determine the effect of the proportion of limestone dust super escaped # 325 as a substitute filler in a mixture of SMA grading characteristics 0/11 against Marshall. The results show the value of density and stability against dust proportion tends to fluctuate, the value of VMA, VFA and Flow values showed a decrease while Marshall Quotient values against dust proportion showed an increase.

ANALISIS TEKNIS DAN EVALUASI KELAYAKAN PEMBANGUNAN JALAN PENGHUBUNG KABUPATEN KAUR-PROVINSI BENGKULU RUAS JALAN TANJUNG KEMUNING Syahrul Syahrul; Hari Nugraha Nurjaman; Fitri Suryani
Inersia: Jurnal Teknik Sipil Vol 8, No 2 (2016)
Publisher : Universitas Bengkulu

The purpose of this study was to evaluate the feasibility of the construction of feeder roads Kaur District-Bengkulu Province street section Tanjung Kemuning. Methods of data collection using the method of observation and documentation. Methods of data analysis using cost analysis which includes the costs of the project, saving the BOK (Vehicle Operation Costs), and travel time savings and economic feasibility analysis includes economic analysis and sensitivity analysis. The results showed that (1) the results of the technical analysis of road pavement structure includes (a) the type of road pavement construction consists of four (4) arrangement of layers, namely 1) the surface layer, thick 10 cm, layer forming material Crescent, 2) the base layer, thick 21 cm, broken gravel layer forming material which doused with liquid asphalt, 3)sub-base layer, thick 23 cm, layer-forming material mixtures of local soil with lime or portland cement, and 4) basic soil layer, thick 41 cm, layer-forming material local soil at the site of road construction projects are compacted; (b) the condition of the pavement include 1) the traffic planning and traffic growth rates, namely a) average growth rate of 4.5%, b) current peak hours is 48 SMP/day, c) LHR value, ie LHR at the beginning of the plan year is 1.200 SMP/day, d) value of LHRT, i.e LHR at the end of the plan for 1.948 SMP/day; 2) value of CBR is 2.423% and E of 36.345 Psi; 3) functional quantities of pavement systems include (a) value of Po is 4.0; (B) valu of Pt is 1.5; and (c) value of Pf is 2.0; 4) value of R is 95% and S is 0.35; and 5) value of SN is 3 cm, and (c) the strength of road construction are 1) value of s is 1.065, 2) value of d is 5 deflections, and 3) value of FK is 0.47% and (2) the analysis of costs consistof (a) the total project cost Rp.10.142.160.500,00, (b) savings BOK (Vehicle Operating Costs) of the three dominant types of vehicles passing through Tanjung Kemuning Street, ie passenger cars, truck/bus medium, and truck/bus large amount Rp.953.814.502,55 covering fixed costs and variable costs Rp.878.980.000,00 of Rp.74.834.502,55, and (c) saving travel time of 0.6hours. This means that with the construction of feeder roads Kaur District-Bengkulu province,road users can save travel time for 0.6 hours compared to pre-project or equal to Rp.572.288.701,53; (2) evaluation of the economic viability include (a) the economic analysis, the value of BCR with an interest rate of 10% at 1,490, the interest rate of 12% amounting to 1,487, and the rate of 15% at 1,482. All the BCR value greater than 1, NPV at 10% interest rate for Rp.5.068.189.644,36, interest rates on 12% of Rp.4.570.421.018,57, and a 15% interest rate for Rp.4.451.192.644,17 , and the value of EIRR of 15.41% and (b) the sensitivity analysis obtained values BC(Benefit-Cost) nothing is worth (-).

PENINGKATAN KUAT TARIK BETON AKIBAT PENAMBAHAN SERAT SABUT KELAPA Elhusna Elhusna; Jefri Suwandi
Inersia: Jurnal Teknik Sipil Vol 4, No 1 (2012)
Publisher : Universitas Bengkulu

Five variations of fibre coconut were used to find out the ability of the fibre to enhance the concrete tensile strength. The coconut fibre (1%, 2%, 3%, 4% and 5% of the volume of the specimen) was added during mixing the concrete. the mix design of the concrete was done at 0,5 water cement ratio and 30-60 mm of slump value. SNI 03-2493-2002 was the standar that used for casting and curing the silinder (diameter/height;150/300 mm) while the split cylinder test was done according to SNI 03-2491-2002. The results showed that the addition of coconut fibre was significantly enhance the tensile strength of the fibre concrete. The correlation between the fibre and the tensile strength was given in quadratic equation which the correlation coeficient ( R2 ) was 0,982. The addition of 5% of the fibre enhanced the tensile strength up to 64,66% of the fibre concrete compared to the concrete without the fibre.

ANALISIS OPTIMASI BIAYA KONSTRUKSI KOLOM DENGAN VARIASI NILAI ? DAN fc' Gerry Revaldo Gerry Revaldo; Fepy Supriani; Mukhlis Islam
Inersia: Jurnal Teknik Sipil Vol 5, No 1 (2013)
Publisher : Universitas Bengkulu

This research aims to study the most optimum and economical of square reinforced concrete column with the variation of ? and fc'. Process optimization in this study requires repetitive calculations by using a Microsoft Office Excel. Analysis of the cost of construction of reinforced concrete columns square cross-section consists of 840 samples with variation of column section dimensions, compressive strengths of concrete (fc'), nominal axial capacity of columns (Pn), and nominal bending moment capacity of column (Mn). The results of the sample analysis are interaction charts corresponding column dimension and cost and interaction of fc' and cost consisting of 1,152 charts and also produces composite charts from the previous chart, which is the interaction, among dimension, fc', and cost of column consists of 96 graphs with variation column without using formwork, formwork 1 time use, of formwork used 2 times, 3 times and use disposable formwork. Hence from all of the cost of the optimum structure of the column with the variation of the Mn and Pn of could be concluded that the greater the value of Mn while Pn constant the of value of ?, column dimensions, and cost structure would dominantly increase and it could be concluded also that the greater the value of Pn with constant Mn value then the value of ? and the cost structure would dominantly decrease while the dimensions have not changed and the compressive strength of concrete (fc') used are 25 MPa - 30 MPa.

PERILAKU DINAMIK PLAT LANTAI BERBENTANG PANJANG DENGAN DAN TANPA PENGAKU RANGKA BATANG MUKHLIS ISLAM
Inersia: Jurnal Teknik Sipil Vol 1, No 2 (2010)
Publisher : Universitas Bengkulu

The aim of this research is to study the effectiveness and the characteristics of structural dynamics of long span RC slab which is stiffened by the addition of steel truss and to verify the numerical analysis results which might be used in the next stage as material of consideration to analyze and design the stiffening method of any prototype or existing structure in need. The experimental works are carried out by using 2 RC slabs with length, width and thickness are 4,6 x 0,96 x 0,05 m respectively, while numerical work shall be carried out by applying structural analysis computer program. The experimental results which are structural dynamic characteristics then will be compared to numerical result.The results of the research show that the behavior of the structure under dynamic loading increased significantly by addition of steel truss, indicated by the increase of structural natural frequency between 15,565% up to 33,33% for several type of truss. The results also show that the average difference between experimental and numerical analysis is 4,503%.

PENGARUH PENCAMPURAN DUA JENIS AGREGAT KASAR TERHADAP KUAT TEKAN BETON Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol 8, No 1 (2016)
Publisher : Universitas Bengkulu

This research aims to find out influence of two combined coarse aggregate toward concrete compressive strength. Two kinds of aggregate which have different quality gradation are coarse aggregate from Quarry Sukaraja (KS) and Pondok Kubang (KP). Conceret mix design used a composition of 1 cement : 2 sand : 3 coral with two coral variations(50% KS + 50% KP and 35% KS + 65% KP), and two kinds of sand (river sand and sea sand). The sample was cylindrical form with diameter of 15 cm, and height of 30 cm as many as 32 samples. Compressive strength test was done at 28 days. Test results of concrete compressive strength showed that 50% KS + 50% KP can improve value of concrete compressive strength to normalconcrete (KS) (16,76% (for river sand) and 17,98% (for sea sand)). Concrete compressive strength of mixture of 50% KS + 50% KP increased 31.9% (for river sand) and 30% (for sea sand) to the normal concrete (KP). By a mixture of 35% KS + 65% KP, concrete compressivestrength increased 6,22% (for river sand) and 15,97% (for sea sand) to normal concrete (KS), and a mixture of 35% KS + 65% K increased concrete compressive strength 20% (for sand river) and 27,78% (for sea sand) to normal concrete (KP).

TENOLOGI PENGAMBILAN AIR LAUT DENGAN BANGUNAN SUMUR BERPORI PADA WILAYAH BERPASIR DI PESISIR PANTAI BENGKULU Derry Yumico
Inersia: Jurnal Teknik Sipil Vol 1, No 2 (2010)
Publisher : Universitas Bengkulu

Pondfish maintenance requires sea water supply. To fulfill the required at Pantai Bengkulu coastal representing sandy coastal have the problem not yet fulfilled of quality and quantity the sea water. With the existence at above problem hence conducted a research. The research needed for collected data. Existing data used for scheme base model. Evaluation for the result use existing formula. From scheme result get a model for the region of sandy coastal. For the sandy coastal used well intake are combination concrete buis and pore pipe. The well have diameter 3 m and 6,5 m deepnes. Pore pipe have length 8 m and diameter is 10 cm. From merger of both can be yielded charge 0,27 m3/ second.

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Editorial Address Program Studi Teknik Sipil, Fakultas Teknik Universitas Bengkulu Jl. W.R. Supratman, Kandang Limun, Bengkulu

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Ade

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ade.sri.w@unib.ac.id

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+62736344087

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Program Studi Teknik Sipil, Fakultas Teknik Universitas Bengkulu Jl. W.R. Supratman, Kandang Limun, Bengkulu

Location
Kota bengkulu,

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INDONESIA