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Kota bandar lampung,
Lampung
INDONESIA
Jurnal Rekayasa Sipil dan Desain
Published by Universitas Lampung
ISSN : 23030011     EISSN : 27150690     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 840 Documents
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Perubahan Nilai Daya Dukung Tanah Lempung Lunak Akibat Stabilisasi Tanah menggunkaan Metode Deep Soil Mixing Pola Panels dengan Kapur 8% Sadil, Salsabila Atalia; Iswan, Iswan; Syah, Aminudin
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1773

Abstract

Palembapang, South Lampung requires proper road construction for public transportation needs. However, the road conditions in the village were found heavily damaged because of poor soil conditions. Therefore, soil stabilization must be carried out. The method of this study is deep soil mixing (DSM), which is soil improvement method by mixing additional materials in the field (in-site). This method is more affordable because they use their soil as theiraggregate and reduce the transportation budget because of stuff supply.The purpose of this study is to determine the change of soil load-bearing capacity due to the variation of distance and the diameter of the DSM stabilization column on soft clay soil and soft clay soil with 8% lime. This study shows that the stabilization of soft clay soil with 8% lime has increased its load-bearing capacity (qu) from 10.368 kg/cm2to 14.69 kg/cm2. The increase of soil load-bearing capacity with the stabilization of the DSM column is proportional to the volume of soil improvement. The largest increase of the soil load-bearing capacity occurred in 1D columns range and 3.75 cm diameter. The distance variation also gives a more significant change compared to the variation of diameter. The most efficient distance and diameter are at the variation of the distance of 1.25D columns range and 2.5 cm diameter.
Analisis Pengaruh Penggunaan Serat Polypropylene Terhadap Self Compacting Concrete (SCC) dengan Bahan Dasar Agregat Kasar Gradasi Senjang (Gap-Grading) Ulini'am, Adipati Syahidullah; Noorhidana, Vera Agustriana; Irianti, Laksmi; Isneini, Mohd
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1774

Abstract

In general, Self Compacting Concrete (SCC) uses coarse aggreggate with dense graded for mix composition. However, in certain places, sometimes the sources of aggreggate are limited and there’s no stone crusher with possibly use coarse aggreggate with gap graded. H. This research was conducted for investigate the effect of polypropylene fiber additions to SCC with gap graded on workability, compressive strength, splitting tensile strength, and bending strength. Test result for Slump-Flow and T50 for both of gradation with Vf 0%, 0,05%, and 0,1% quilify that Slump-Flow are about 50-65 cm and T50 are 3-15 second. Test result for compressive strength of SCC with gap graded, the optimum Vf is 0,05% with 7,02% increase in strength compared to dense graded with 0% Vf. Test result for split tensile strength of SCC with gap graded, the optimum Vf is 0,05% with 45,53% increase in strength compared to dense graded with 0% Vf. Test result for bending strength of SCC with gap graded, the optimum Vf is 0,05% with 347,28% increase in strength compared to dense graded with 0% Vf.
Perbandingan antara Campuran Pasir Baik dengan Pasir Buruk pada Perbaikan Tanah Dasar Jalan Terhadap Daya Dukung Setelah Dilakukan dan Tidak Dilakukannya Swelling Potential Ditinjau Terhadap Tebal Perkerasan Jalan Qurrahman, Taufiq; Iswan, Iswan; Sulistyiorini, Rahayu
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1775

Abstract

Swelling of clay soil has an impact on building construction. The problem that occurs in Marga Kaya Village, in the rainy season the soil is mushy and the carrying capacity becomes low so that the road is bumpy and the road body decreases. This study uses good sand stabilization material and bad sand with a mixture variation of 5%, 10% and 15% This study aims to find out the thick decrease in road pavement from each addition of mixed variations. Cbr results unsoaked and soaked maximum good sand occurs in a mixture of sand 15% with a value of 14.2% and 3.2%. The thickness of pavement on CBR unsoaked and soaked sand is well efficient on a mixture of sand 15% with a thickness of D1 = 2.25 cm, D2 = 20 cm and D3 = 10 cm, and soaked D1 = 8.75 cm, D2 = 20 cm and D3 = 10cm. Cbr unsoaked and soaked maximum value of bad sand occurs in 15% sand mixture with values of 13.9% and 2.6%. Thickness of pavement on CBR unsoaked and soaked bad sand maximum on the sand mixture 15% with thickness D1 = 2.5 cm, D2 = 20 cm and D3 = 10 cm, and soaked with thickness D1 = 9.25 cm, D2 = 20 cm and D3 = 10 cm. The value of swelling decreased from 11.4% to 5.7% and 8% in the addition of sand 15%.
Hubungan Sifat Sifat Fisik Tanah Yang Dicampur Dengan Kapur Terhadap Stabilitas Tanah Lempung Pada Tanggul Idrus, S. Tantri Handayani; Iswan, I; Syah, Aminudin
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1778

Abstract

In embankment planning, it is necessary to consider the influencing factors such as the materialfor making the embankment, slope stability, guard height, slope protection, the width of theembankment, the slope and dumping facilities. Some areas in Indonesia do not have good qualitysoil. For instance, the soil in Palembapang Village, Kalianda, South Lampung. Regarding theissues, soil maintenance is mandatory to be done to increase the physical parameters of the soil sothat the carrying capacity of the soil is maintained. The results shows that at the mixture rate of0%, 4%, 8%, 12% and 16%, the lime is classified as CL (clay low plasticity)which indicates nonorganicclay with low to medium plasticity. The lab testing result of the sample of natural soilshows cohesion value of 0,1813 kg/cm2 and shear angle value of 20o. After stabilizing processwas done using additives, the cohesion value and shear angle value were significantly increasing.It proves that lime can increase soil density as both value increased. In the natural soil sample,the value of the safety factor was still below the safe limit. Another lime additive was added to thesoil sample with lime addition of 16%. None of the safety factor limits were below average afterthe process. In conclusion, lime additive can decrease the plasticity (liquid limit and plasticityindex), enhancing strength and durability, reducing water absorption and soil development aswell as strengthening the stability of the embankment.
Pengaruh Penambahan Semen pada Tanah Lempung terhadap Parameter Konsolidasi dan Kecepatan Penurunan Dwitya, Fara; Putra, Andius Dasa; Iswan, I
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1789

Abstract

Soil is a subgrade for basic building construction. While receiving the load, soil will settle, which take long time to complete for soft clays because of its low permeability. The problem that is caused by settlement as seen in Palembapang, Umbul Ligoh, South Lampung has low bearing capacity, this leads to cracks in the house walls, bumpy roads, and the settlement of the road constructions. One of the soil stabilization effort is addingcement as an additive material because it has very fine particles so that it can fill the soil pores and bond to the contact area between the soil grains and has a function as a strong binder. This work aimed to study the parameters of the compression index (Cc), coefficient of consolidation (Cv), consolidation settlement (Sc) and time of consolidation (t) due to soft clay mixing with cement as a soil stabilization material with percentage of 4%, 8% and 12%. Due to cement addition into soft clay, compaction with the standard proctor experienced a decrease the optimum moisture content (OMC) and an increase in the weight of maximum dry volume. In addition, in the consolidation test, the compression index (Cc) and consolidation settlement (Sc) decreased 7,95% and 5,44%, moreover the coefficient consolidation (Cv) increase 2,74% and the time of consolidation (t) were faster. The most change on consolidation parameter was recorded by the sample mixed with 12% of cement.
Perubahan Perilaku Tanah Lempung Lunak Akibat Stabilisasi dengan Bahan Aditif Kapur menggunkaan Metode Deep Soil Mixing Pola Triangular Pangestu, Beno Balakosa; Iswan, Iswan; Putra, Andius Dasa
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1797

Abstract

Pelembapang, South Lampung has a soft clay soil structure. Soft clay soil has a low bearing capacity value This has an effect on the building to be built on it. Therefore, soil stabilization must be carried out. The method used in this study is the deep soil mixing (DSM) method, which is one of the soil improvement method by mixing additional materials in the field (in-site). This method is more affordable because they use their soil as theiraggregate and reduce the transportation budget because of stuff supply.The purpose of this study is to determine the change of soil load-bearing capacity due to the variation of distance and the diameter of the DSM stabilization column on soft clay soil and soft clay soil with 8% lime. This study shows that the stabilization of soft clay soil using DSM of 8% lime with triangular configuration has increased its load-bearing capacity (qu) from10.368 kg/cm2 to 12.96 kg/cm2. The increase of soil load-bearing capacity with the stabilization of the DSM column is proportional to the volume of soil improvement. The largest increase of the soil load-bearing capacity occurred in 1D columns range and 3.75 cm diameter. The distance variation also gives a more significant change compared to the variation of diameter. The most efficient distance and diameter are at the variation of the distance of 1.25D columns range and 2.5 cm diameter.
Modifikasi Struktur Rumah Sakit Umum Hermina Lampung dengan Metode Sistem Rangka Bresing Eksentris (SRBE) untuk Bangunan Tahan Gempa Sarifuddin, Lukman; Isneini, Mohd; Sebayang, Surya
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1798

Abstract

Eccentrically Braced Frame System (EBFs) is a diagonal brace system which at least one end of each supporting element supports the beam at a certain distance from the location of the beam-column joint, or from another diagonal end by a distance called a link or eccentricity. . This study aims to determine how to plan a steel structure building using the Eccentrically Braced Frame System (EBFs) method and to find out how the joint planning method for the steel structure.Hermina Lampung General Hospital is a building consisting of eight floors built using reinforced concrete construction which will be re-planned using the Eccentrically Braced Frame System (EBFs). The standard provisions in the calculations used in this study refer to SNI 1729 (2020) about cerning the Procedure for Planning Building Steel Structures.Based on the results of the research that has been done, it can be concluded that in calculating the steel frame structure using Eccentrically Braced Frame System (EBFs) can be planned based on SNI 1729 (2020) or AISC 360 (2016), but to calculate the link and brace components refer to SNI 7860 (2020) or AISC 341 (2016). Meanwhile, connection planning can be carried out based on SNI 1729 (2020) and SNI 7860 (2020) by using two methods, namely load and resistance factor design (LRFD) and allowable strength design (ASD).
Comparative Analysis of Tidal Data from Forecasting Results with Measured Tide Data (Meneng Tidal Station Case Study) Purna, Bagus Mustofa; Zakaria, Ahmad; Mariyanto, Mariyanto
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1801

Abstract

AbstractThis research to find the similarity of the tidal characteristics of sea water, especially in the sea waters in the Meneng station area, where the data used is both hourly tide data from tide data from the website http: //tides.big.go.id and field measured tidal data for a period of 5 years, from 1988 to 1992 at the Meneng tidal station, East Java, Indonesia. The data used in this research have a minimum data length of 720 hours or 30 days, using 9 tidal harmonic components using the least squares method and then converted into the ANFOR program (Zakaria, 2005), this program can produce a periodic tidal data model. including the amplitude value that can be used to see a tidal characteristic of sea water. After the tidal data is modeled and analyzed, the correlation coefficient is generated. From the results of this study, it can be concluded that the component results obtained from the hourly tide data from the website http://tides.big.go.id and field measured data have something in common with the generated tidal components. The average correlation coefficient of the two data is 0.8010 and is included in the very good category. Keywords: tides, ANFOR, correlation coefficient
Hubungan Sifat-Sifat Fisik Tanah dan Aktivitas Tanah Terhadap Nilai Koefisien Permeabilitas Yang Dipengaruhi Campuran Semen Berdasarkan Uji Laboratorium Ariana, S. Indira Adhi; Iswan, Iswan; Syah, Aminudin
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1807

Abstract

Soil is the materials that has a very important role to support the construction on it. Soil permeability value for every construction is different. Such differences affect the strength of a civil construction to be built. The problem that is caused by settlement as seen in Palembapang, Umbul Ligoh, the soil is soft in the rainy season and its bearing capacity becomes low, so it makes a lot of construction problems. Therefore it is necessary to attempt to manipulate the soil permeability value by adding cement as an additive ingredients with the percentage of 0%, 4%, 8% and 12% to a soil permeability values obtained in order to meet the standard of civil construction to be built. Cement has very fine particles so that it can fill the soil pores and has a function as a strong binder. In testing physical properties, the soil includes the classification of A-7-6 soil or poorly categorized soil types.Due to cement addition into soft clay, compaction with the standard proctor experienced a decrease the optimum moisture content (OMC) and an increase in the weight of maximum dry volume, then in the permeability test, the permeability coefficient decreased 2,52%. The composition of the cement mixture affects the value of soil permeability. The lower permeability value follows the amount of cement mixture on the soil. The most change on permeability coefficient was recorded by the sample mixed with 12% of cement.
Analisis Pengaruh Beban Gempa pada Gedung Tujuh Lantai Menggunakan Metode Statik Ekuivalen (Studi Kasus Rumah Sakit Ibu dan Anak Hermina Lampung) Wafi, Alvino; Isneini, Mohd; Husni, Hasti Riakara
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1809

Abstract

Earthquake is one of the natural disasters that often occurs in Indonesia. One of the effects of earthquake natural disasters is that it can damage building structures. Therefore, the building to be built should take into account the effect of the earthquake load. Planning for a safe multi-storey building must minimize the risk of casualties, especially for health building facilities where there is a lot of human activity. SNI 1726: 2019 is the latest regulation governing the planning procedures for earthquake resistant buildings. In this research, structural modeling software is used to facilitate the analysis to be carried out. The expected results of this study are (1) Comparison of the value of the force in the RSIA Hermina building structure without earthquake loads and with earthquake loads (2) The ability of the RSIA Hermina building structure to withstand the internal forces generated from the analysis using the equivalent static method. From the results of this study, it was found that the increase in moment and latitude values in the beam and column was 2 to 20 times. Meanwhile, the floor slab structure does not experience the impact due to earthquake loads.

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