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Ismeddiyanto, Ismeddiyanto
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Engineering

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Analisis Jembatan Busur Pejalan Kaki Berdasarkan Variasi Letak Lantai Kendaraan Ardiansyah, M. Syukri; Ismeddiyanto, Ismeddiyanto; Suryanita, Reni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Sturdy bridge construction has always been synonymous with large and impractical structures. New innovations are needed to create a bridge system that is practical but also robust in terms of strength. For this reason, pedestrian arc bridges are analyzed with deck variations. The purpose of this study is to obtain the optimum bridge model, in which the ratio of weight of bridge structure deflection is small. Three types of bridges were considered in this study e.g deck arch, through arch and a half through arch by comparing the stresses that occur as well as the weight ratio and bridge deflection. The most optimum bridge is that produced the smallest efficiency ratio value. The results of the analysis obtained are A Half-Through Arch which has the best performance in distributing internal forces evenly. The Deck Arch weight is 1,125.52 tons, A Half-Through Arch weighs 1,007.14 tons and the Through Arch weighs 975.61 tons. The maximum deflection on the Deck Arch is 243.41 mm, A Half-Through Arch is 309.95 mm and the Through Arch is 260.19 mm. Then, the efficiency ratio of Deck Arch is 4.62, A Half-Through Arch is 3.25 and Through Arch is 3.75. So, it can be concluded the most optimum bridge is A Half-Through Arch with the smallest efficiency ratio value of 3.25. A Half-Through Arch are more efficient 13.34% than Through Arch and 29.73% more efficient than Deck Arch.Keywords : Analysis of Bridges, Arch Bridge, Steel Bridge, Bridge Loading, Deflection, SAP2000.
Pengaruh Penggunaan Soil Stabilization Terhadap Sifat Fisik Mortar Dengan Agregat Halus Berkadar Lumpur Tinggi Rahman, Arif; Ismeddiyanto, Ismeddiyanto; Suryanita, Reni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This study examined the physical properties of mortar mixed from fine aggregate containing high percentage of mud and soil stabilization. According SNI S-04-1998-f regulations fine aggregates for concrete should not be more 5% mud. Soil stabilization as additive material in the mortar mixtures will increase the quality of mortar.. The percentage of mud in the study was 0%, 5%, 10%, 15%, 20% and 23%. Soil stabilization of 1% as additional material of the mortar’s mud weight. The tested physical properties of the study object consist of its unit weight, sorptivity, porosity amd compressive strength. Study object was treated by submerging in normal water in 28 days. The compressive strength of mortar with high mud content and added soil stabilization is higher 2.82%, 4.74%, 8.16%, 13.94% and 16.03% compared to mortar with high mud content without soil stabilization at 5%, 10%, 15%, 20% and 23% mud content variation.The porosity of mortar with high mud content and added soil stabilization is higher22,21% compared to mortar with high mud content without soil stabilization. Sorptivy test results added soil stabilization value 0,1 mm/min0,5- 0,2 mm/min0,5 which means mortar is good. The unit weight mortar with high mud level and added soil stabilization is higher by average unit weight 2,31 gr/cm3 compared to mortar with high mud content without soil stabilization. Based on the overall study, it’s concluded that the overall strength of mortar with high mud content and added soil stabilization is higher than mortar with high mud content without added soil stabilization.Keywords : Mud, Soil Stabilization, Mortar.
Densitas, Nilai Slump, Dan Kuat Tekan Beton OPC Dan OPC POFA Dengan Campuran Air Gambut Terpapar Di Lingkungan Gambut Fadillah, M Lucky; Ismeddiyanto, Ismeddiyanto; Olivia, Monita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This research study aimed to test the density of fresh concrete, slump value and compressive strength of concrete using OPC cement and concrete with composition of 90%OPC+10%POFA (palm oil fuel ash). That concretes mixed with peat water. pH of peat water used ranges from 3.0 to 4.0. These specimens are cast in situ. Direct specimen exposed and soaked for 28 days in the peat canal. OPC concrete that mixed with peat water generate density values were small. An increase in the value of the slump of OPC concrete mixed with peat water compared to the controling OPC. As for concrete of 90%OPC+10%POFA slump value decreases. Compressive strength of OPC concrete and concrete of 90%OPC+10%POFA were soaked for 28 days in the peat showed relatively similar results compared to the normal condition.Keywords: OPC, palm oil fuel ash (POFA), peat water, peat area
Co-Authors Ardiansyah, M. Syukri Arif Rahman Fadillah, M Lucky Monita Olivia Reni Suryanita