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Inersia : Jurnal Teknik Sipil

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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 216 Documents

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PERCEPATAN WAKTU PELAKSANAAN PEKERJAAN KONSTRUKSI DENGAN METODE CPM DAN TCTO Oktaviani, Cut Zukhrina; Majid, Ibnu Abbas; Risdiawati, Risdiawati
Inersia: Jurnal Teknik Sipil Vol. 11 No. 1 (2019)
Publisher : Universitas Bengkulu

Construction delays are a common and major concern in most construction projects. Construction project delay can indirectly affect of project performance. Delay resolve method is to schedule crashing with various methods. This crashing planning is done by combining the Critical Path Method (CPM) and Time-Cost Trade-Off (TCTO) method for the minimum cost in crash duration calculation. Project A data is used to be a case studi in crash duration calculation and costs increase. Rescheduling with CPM result project completion time 120 days and after crashing project duration becomes 94 days, there was a reduction 26 days project completion time. Crashing programme are do to 18 activities from 30 critical activies rescheduling with CPM result. Total project costs changes is Rp. 19.923.466,- due working time addition (overtime) to reduce project time with Time Cost Trade Off method. Normal condition project costs is Rp. 985,171,182.52 and after duration crash becomes Rp. 1,005,094,648, -.

A PRELEMINARY EVALUATION OF LIQUEFACTION POTENTIAL OF SANDY SOIL IN LEMPUING SUB-DISTRICT (A COASTAL AREA IN BENGKULU CITY) Lindung Zalbuin Mase; Anggi Nidya Sari
Inersia: Jurnal Teknik Sipil Vol 7, No 2 (2015)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.7.2.21-25

In 2000 to 2009, at least two big earthquakes happened in Bengkulu. The first earthquake occurred in June 4 th, 2000 and the second one occurred in September 12, 2007. Two big earthquakes not only triggered the extensive damage of structures and infrastructures, but also triggered the attributed disaster such as liquefaction. Liquefaction occurred in Bengkulu were signed by sand boiling and lateral spreading in minimum to maximum scale in coastal area, particularly in Lempuing Sub-district. Soil condition in Lempuing Sub-District is dominated by sandy soil with shallow water table depth. Rely on the experience of earthquake and liquefaction disaster in the past, a preliminary evaluation of soil liquefaction in Lempuing Sub Districthad been conducted. The evaluation was performed to define the relationship between peak ground acceleration coefficient and relative density for variation of D of soil sample. This evaluation can be used to estimate the preliminary liquefaction potential before continue more detail analysis.

PENGARUH METODE PERLAKUAN DALAM PERAWATAN BETON TERHADAP KUAT TEKAN DAN DURABILITAS BETON Supriani, Fepy; Islam, Mukhlis
Inersia: Jurnal Teknik Sipil Vol. 9 No. 2 (2017)
Publisher : Universitas Bengkulu

Concrete strength is influenced by several variables, among others by its constituent material, mix design, workmanship, and curing. The objective of concrete curing is to maintain the concrete in certain conditions after the dismantling of the formwork hence the optimization of concrete strength can be achieved close to the designed strength. This study aims to determine the effect of concrete curing on its compressive strength. Designed concrete compressivestrength of 20 MPa with slump values of 60-100 mm to be used. The specimens are cube-shaped with 15 cm dimension. Concrete compressive strength tests were conducted at 28 days and 56 days of concrete age. The types of concrete curing consist of 9 variations, i.e., not treated, water immersed and water sprinkling. Optimum 28 days age of compressive strength of concrete obtained from specimens that immersed in fresh water, which was 31,3 MPa. The concretespecimens that were put outdoor without any curing and treatment generates second highest compressive strength value of 28.6 MPa. The 28 days age of concrete compressive strength values cured with water sprinkling with addition of burlap wrapping are still under the compressive strength of uncured concrete. Significant changes to the strength of cured concrete occurred at age of 56 days and uncured concrete strength decreased up to 19%. The optimum increase occurred in concrete cured with burlap sack wrapping and water sprinkling that was conducted routinely for 3 days by 27,84%. With increasing age (durability) the treated concrete has better strength.

ANALISIS PENGGUNAAN PASIR LAUT PADA CAMPURAN BETON TERHADAP RUMAH TAHAN GEMPA Muhammad Fauzi
Inersia: Jurnal Teknik Sipil Vol 2, No 2 (2011)
Publisher : Universitas Bengkulu

Bengkulu is an earthquake prone area, so that the construction of buildings/houses should be based on the concepts of earthquake resistant houses. But to make earthquake-resistant housing, people has been frequently use material sea sand as a mixture of concrete. Research on the use of sea sandas fine aggregate in concrete mix is background by the availability of sea sand in a very large number in the city of Bengkulu. This study aims to find out how big the compressive strength of concrete is produced when using sea sand with some treatments. The treatment used to the sea sand is without treatment, soaked for 24 hours and the addition of lime 5%, 10%, 15% by weight ofcement. Concrete planned to use fas 0.5 with a cylindrical sample and amount 30 pieces. The results showed that the use of sea sand in concrete mix was a mixture of concrete without treatment produces an average compressive strength of 16.65 MPa, the concrete mix with soaked treatment of 19.79 MPa, and the addition of lime 5%, 10%, 15% in the amount of 20,72 MPa, 20,72 MPa,18,69 MPa

ANALISIS KEMAMPUAN SALURAN DRAINASE TERHADAP GENANGAN BANJIR DI JALAN GUNUNG BUNGKUK KOTA BENGKULU DENGAN MENGGUNAKAN APLIKASI EPA SWMM 5.1 Hendy Apriyanza; Khairul Amri; Gusta Gunawan
Inersia: Jurnal Teknik Sipil Vol 10, No 2 (2018)
Publisher : Universitas Bengkulu

This study aims to determine the flood discharge plan, discharge the existing channel and analyze the condition of the existing channel and look for alternatives to handling flood inundation at the location of flood inundation. Retrieval of data by measuring the existing channel in the flood inundation location. Calculation of peak discharge uses rational methods for various times of plan return. Rainfall calculation results of the plan that meets the requirements are type 1 Gumbel Method. The results of the research and calculations areknown that the amount of existing channel discharge in seven locations of flood inundation ie left and right Mountain Bambat Road is 0.934 m3 / sec and 3.798 m3 / sec. 2,261 m3 / sec, the left and right Gunung Bungkuk Roads are 0.134 m3 / sec and 0.164 m3 / sec while the flood discharge is 1.897 m3 / sec, Gunung Bungkuk 1 Road is 0.30 m3 / sec while the flood discharge is 0.471 m3 / sec, Gunung Bungkuk Road 4 hunchback of 0.190 m3 / sec while the flooddischarge is 1,336 m3 / sec and Gunung Bungkuk Road is 4 0,173 m3 / sec while the flood discharge is 0,864 m3 / sec and for the drainage of Jalan Gunung Bungkuk is not calculated the channel discharge is due to the channel being closed so that the channel dimension not obtained but for the flood discharge of 2.230 m3 / sec and 0.447 m3 / sec. Thus, it shows that the existing discharge channel on the existing Gunung Bungkuk Hump Mountain Road is unable toaccommodate the planned flood discharge. The alternative to flood inundation is by re-planning drainage channels, channel normalization activities, and improving coordination between the government and the community in maintaining drainage channels.

PEMETAAN KAPASITAS DUKUNG TANAH KELURAHAN LEMPUING KOTA BENGKULU Rena Misliniyati; Makmun R. Razali
Inersia: Jurnal Teknik Sipil Vol 6, No 2 (2014)
Publisher : Universitas Bengkulu

Lempuing is one area in the coastal city of Bengkulu with predominantly sandy soil consistency. This study aims to map the soil bearing capacity of sand Village Lempuing based on data sondir. To achieve these objectives, data collection sondir test at some point spread in the city of Bengkulu Lempuing. Once the data is collected sondir required, further soil bearing capacity calculations for the two types of foundation, the foundation palms (shallow foundation) and pile foundation (the foundation). Capacity analysis results show that the depth of the foundation (Df) ? 1 m, license bearing capacity (qa) for the foundation of the palm of the width (B) 0.6m generate value qa ?1,2 kg / cm2. Meanwhile, the bearing capacity of pile foundation at 6m depth ranging between 35-130 tons. Overall analysis results are displayed in the form of maps of soil bearing capacity. Distribution of value in the map shows that the farther from the coastline, the bearing capacity of the ground at the same depth becomes greater its value.

PENGGUNAAN LIMBAH MARMER SEBAGAI FILLER PENGGANTI PADA CAMPURAN LASTON LAPISAAN ANTARA (AC-BC ) Makmun R. Razali
Inersia: Jurnal Teknik Sipil Vol 8, No 2 (2016)
Publisher : Universitas Bengkulu

Gradation of aggregate used is laston with kind of a mixed layer between (AC-BC) guided by the specifications of hot mix asphalt Kimpraswil 2003. Infrastructure Layer Asphalt Concrete (laston) is layered on construction pekerasan road that serves as a protective construction have also taken into account underlying structural value a mixture of hot asphalt with aggregate gradation continuously. This study was to determine the use of waste as a substitute filler marble against karekttistik Marshall. From the results of this study are eligible specification marshall mixture so that the waste can be used as a filler marner replacement.

PENGGUNAAN ABU CANGKANG SAWIT SEBAGAI PENGGANTI PADA SEBAGIAN SEMEN UNTUK MENAMBAH KEKUATAN TEKAN MORTAR Khairil Anwar; Mawardi Mawardi
Inersia: Jurnal Teknik Sipil Vol 4, No 2 (2012)
Publisher : Universitas Bengkulu

The objective of this research was to investigate the influence of palm ash powder as a substitute for a fraction of the cement to the mortar compressive strength. Palm ash constitutes as cesspool of palm production that contains a lot of silica element (SiO) and constitutes pozzolanic material. The sample used were cubes size 50 mm x 50 mm x 50 mm. Sand that used have 2 variation are mountain sand and sea sand and have 2 processing are washing and not washing. The method that used is anava 2 way. The testing object was made by composition of mixture 1 cement : 2 sand and 1 cement : 4 sand, by variation of palm ash addition on cement 0%, 7.5%, 12.5%, 25%, and 30%. By the research showed pressure strength respectively viz 38.52 MPa, 21.85 MPa, 17.10 MPa, 7.66 MPa, and 5.59 MPa. The test was conducted after the mortar was 28 days old. The test result of mortar found that higher content of the fruit bunch ash so lower of compressive mortar strength. So that the objective of this research dont have optimum percentage of palm ash to compressive strength of mortar and palm ash dont used as a subsitute for a fraction of cement to the mortar compressive strength.

PETA PROBABILITAS LIKUIFAKSI KAWASAN LEMPUING KOTA BENGKULU BERDASARKAN DATA UJI SONDIR Rena Misliniyati; Makmun R. Razali; Samsul Bahri
Inersia: Jurnal Teknik Sipil Vol 6, No 1 (2014)
Publisher : Universitas Bengkulu

As one of the cities on the west coast of Sumatra Island is located in an active seismic lines, causing Bengkulu city into an area that has the potential for an earthquake. This allows also the potential danger of liquefaction when the earthquake occurred. One of the areas in Bengkulu city is the pathway through which the village Lempuing. This study aimed to analyze the potential for liquefaction at the Village Lempuing using probabilistic methods simplified procedure. Probability model used is the probability model developed by Haldar and Tang (1979). The data collected from the results of the geotechnical investigation sondir 6 point spread in the Village Lempuing. Soil resistance parameters in this analysis are based on test data sondir or Cone Penetration Test (CPT). Shear wave velocity data obtained from the correlation of the data CPT Vs. Seismic load parameters used were obtained from the Indonesian Earthquake Zoning Map of 2010 and the seismic history of the city of Bengkulu. The analysis shows the level of probability of liquefaction hazards at the study site is close to 100%. This suggests that the study site has great potential for liquefaction hazards occur when an earthquake occurs.

PENGARUH PENAMBAHAN SEKAM PADI DAN POLIMER EMULSI POLY VINYL ACECATE CO ACRYLIC PADA TANAH LEMPUNG DENGAN OBJEK PENGUJIAN KEKUATAN BATU BATA MENGGUNAKAN METODE UNIAXIAL Halauddin, Halauddin
Inersia: Jurnal Teknik Sipil Vol. 9 No. 1 (2017)
Publisher : Universitas Bengkulu

Research on the effect of the addition of rice husk and poly vinyl acetate emulsion polymer co acrylic (PVA) on clay have been conducted to see the strength of brick. Calculation of strength compared to brick by rice husks and polymer emulsion and given rice husk without any emulsion polymer. Provision of rice husk to batter was fixed at 9:1, while the provision of PVA polymer mixture for each batter with varying percentage are 1%-7%. Based on the results of the research, showed that: uniaxial compressive strength test resultsbricks to mix rice husk without PVA emulsion polymer was 28,7kg/cm2(L0), compressive strength test results bricks to mix rice husk with PVA emulsion polymer to a mixture of 1%-7%, respectively: (PVA 1% of 28,7 kg/cm2 (L1);(PVA 2% of 28,7 kg/cm2 (L2); (PVA 3% of 28,7 kg/cm2 (L3); (PVA 4% of 28,7 kg/cm2 (L4); (PVA 5% of 28,7 kg/cm2 (L5); (PVA 6% of 28,7 kg/cm2 (L6); and (PVA 7% of 28,7 kg/cm2 (L7). From the above results show that the compressive strength test results bricks to mix rice husk with PVA emulsion polymer mix increased from 1% to 3% mix, while starting from a mixture of 4% to 7% of the compressive strength of bricks dropped dramatically. The addition of PVA 3% of additions that the most effective way to improve the compressive strength of the bricks with compressive strength reached 53,5 kg/cm2, or increase of 46,4% from a brick with a mixture ofrice husk.

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

Location Kota bengkulu, Bengkulu INDONESIA

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Contact Name
Ade

Contact Email
ade.sri.w@unib.ac.id

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+62736344087

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inersia@unib.ac.id

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

Location
Kota bengkulu,

Bengkulu

INDONESIA