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All Journal Fruitset Sains : Jurnal Pertanian Agroteknologi Jurnal Teknik Indonesia
Hartopo, Hartopo
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Engineering Transportation

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OPTIMASI SUBSTRAT PERTUMBUHAN JAMUR LION'S MANE (HERICIUM ERINACEUS) DI DAERAH TROPIS Dewi, Dora Silvia; Hartopo, Hartopo; Budiwan, Diah Wiyani
Fruitset Sains : Jurnal Pertanian Agroteknologi Vol. 12 No. 3 (2024): August: Ilmu Pertanian dan Bidang Terkait
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/fruitset.v12i3.5464

Abstract

The Lion's Mane mushroom (Hericium erinaceus), known as lion's mane, is a mushroom that grows wild in European and North American countries, but currently this mushroom is starting to be cultivated artificially in tropical areas. However, it is necessary to modify the planting media, temperature and humidity so that this fungus can grow and develop well in tropical areas. The aim of this research was to see the growth rate of Lion's Mane mushroom mycelium on various substrates in the planting medium. The method used is descriptive qualitative research, namely by observing the growth of the Lion's Mane fungus on several media with different substrates. The research design was carried out by comparing the materials used in different ratios to obtain a suitable medium for the growth of Lion's Mane mushrooms. The results of this research are that from several types of nutritional sources used, rice flour and bran are the most ideal nutritional sources for the growth of Lion's Mane mushrooms. The use of a mixture of rice flour and bran showed the fastest mycelium growth, namely on day 4, while other nutritional sources such as a mixture of corn flour and bran showed rather slow mycelium growth, namely on day 10. Temperature and humidity also greatly influence the growth of the Lion's Mane fungus. Therefore, it is necessary to carry out further research by modifying the temperature and humidity suitable for the growth of the Lion's Mane fungus.  
ANALISA KOMPARASI DAYA DUKUNG PONDASI BORED PILE SECARA ANALISTIS TERHADAP HASIL LOADING TEST STUDI KASUS PROYEK PEMBANGUNAN REZ HOTEL Anggraeni, Savira Mirda; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 3, No 2 (2022): JEI (Jurnal Engineering Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v3i2.369

Abstract

Foundation failure and other factors that can cause bearing capacity to be incompatible when in the field. This is one of the factors that encourage direct loading tests in the field. Main objective of this study is to s to calculate and compare the ultimate bearing capacity of drilled pile after implementation with ultimate bearing capacity at the time of planning. SPT results were calculated using the Aoki Velosso method, the Decourt method, and the Reese & Wright method. Based on the calculation of the carrying capacity that has been carried out, there are differences in results, both due to the use of the method and the location of the point being reviewed. Based on the SPT data obtained from the calculation results of each Aoki Velosso method for TP-1/BP.48 the value of Qu = 783,933 tons while for TP-3/BP.78 the value of Qu = 1301,239, the Decont method for TP-1/BP.48 values Qu = 2593.098 tons while for TP-3/BP.78 the value of Qu = 2091.817, the Reese & Wright method for TP-1/BP.48 the value of Qu = 401.030ton while for TP-3/BP.78 the value of Qu = 334.022 and the results The loading test of the two test piles is TP-1/BP.48 Qu = 256 tons and TP-3/BP.78 Qu = 257 tons. Based on the calculation results, it can be seen that the efficient method used is the Reese & Wright method because the results of the calculation method are the smallest results, this is necessary to maintain building safety.
PERENCANAAN BANGUNAN GEDUNG SUPERMARKET KABUPATEN BOYOLALI Kurniawan, Muhamad; Sasi, Windu; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i2.488

Abstract

Boyolali is a developing district in Central Java Province. Therefore, many people from outside the area come to Boyolali to do business or develop their businesses. In order for the activities carried out to run well, adequate and supportive facilities are needed, so the construction of a Supermarket Building is planned. The structural planning for the Boyolali district supermarket building is in Siswodipuran, Boyolali District, Boyolali Regency, Central Java. This supermarket building was built to improve MSMEs for people in Boyolali.This building planning was carried out using primary data, such as soil survey data, and supplemented with other secondary data. This structural planning analysis is assisted by the SAP2000 software application for structural modeling and calculating internal forces. The analysis carried out includes: calculation of the roof structure, beams, columns and foundations.From the analysis results, it was obtained that the roof rafter beam was IWF 300.150.6,5.9, CNP purlins 150.50.20.2.3, steel columns IWF 300.150.6,9.9. Block sizes vary from 40x80 cm, 35x70, 30x60, 25x50, blocks measuring 25x40 and 20x30. Column sizes 80x80 cm, 70x70 cm, 60x60 cm. The foundation uses bored piles F2: 1.20x2.20x1.10 m with 2 bored piles measuring 60x60 cm, depth 5.5 m, F4: 2.20x2.20x1.40 m with 4 bored piles measuring 60x60 cm, depth 5.5 m, F6: 2.20x3.20x1.55 m with 6 bored piles measuring 60x60 cm, depth 5.5 m, F8: 2.20x4.20x2.00 m with 8 bored piles measuring 60x60 cm, depth 5.5 m. From the results, each structural element of the building can be categorized as safe.
ANALISIS DERAJAD KONSOLIDASI PADA PERBAIKAN TANAH DENGAN METODE PRE-FABRICATED VERTICAL DRAIN (PVD) PADA PROYEK PEMBANGUNAN JALAN TOL SEMARANG – DEMAK PAKET 2 Ningrum, Hastari Dita; Anassari, Ririn; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 3, No 2 (2022): JEI (Jurnal Engineering Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v3i2.370

Abstract

Soft soil is a type of soil that has low shear strength, small coefficient of permeability, compressibility and low soil bearing capacity. 1-D consolidation theory by Terzaghi (1925), assumes that during the consolidation process the value of the consolidation coefficient (Cv) is constant. Flow is only vertical direction. The analysis carried out is to know magnitude of decline and time required to achieve 90% consolidation. Quantitative data is used to analysis numerical data and calculated using existing formulas. Value of settlement using Terzaghi method and principle of normal consolidation is 1.68834 m. To achieve a degree of consolidation of 90% without PVD is 274350 days with a decrease of 1.5196 m. With triangular pattern PVD installation on distance of 0.9 m is 75 days with a large reduction of 1.523 m. Based on the result, time required to achieve a degree of 90% consolidation using PVD is onliy 75 days, while on same day without using PVD consolidation results are around 0.017%. This shows that PVD can speed up the time required for soil consolidation.
ANALISIS EVALUASI RENCANA DAN PENGENDALIAN JUMLAH PENGGUNAAN ANGGARAN BIAYA PELAKSANAAN PROYEK PEMBANGUNAN GEDUNG KANTOR PELAYANAN MASYARAKAT DINAS BINA MARGA DAN CIPTA KARYA PROV. JATENG Mahfud, Ari; Rosdiana, Dina Citra; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 1 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i1.417

Abstract

The Construction Project for the Public Service Office Building for the Highways and Human Settlements Office of Central Java Province is carried out from February to October 2021, with total contract value of Rp. 8,313,888,968. This project using planning and controlling time and costs so that later work will be more efficient, according to plans and objectives. The purpose of this study is to determine the time performance of the Development Project, to find out the problems encountered in the implementation of the Project, as well as the solutions used to overcome the problems that arise. The method used in this study is the Earned Value Concept method in which it combines elements of schedule, cost, and work performance to calculate the estimated cost and time needed to complete the project to completion. The data obtained from the Project includes the Budget Plan (RAB), Project Work Schedule, Daily, Weekly, Monthly Reports and actual cost requirements. Furthermore, an analysis of costs, schedules, and work performance is carried out by explaining the problems that arise during the research. From the results of the research and analysis it is known that the total costs incurred are relatively the same as the budget that has been planned, this is indicated by the results of CV = 1 and the project implementation time has been delayed from the planned schedule, indicated by the results of SPI = 6.6883 The results of calculating an estimated cost of Rp. 8,313,888,968 with an estimated completion time of 36 weeks which indicates a delay of 1 week from the planned 35 weeks. Where this delay was caused by several factors such as weather conditions which were in the rainy season when the project was running, damage or inadequate tools.
STUDI KOMPARASI KAPASITAS AXIAL BORED PILE DENGAN BERBAGAI FORMULA PADA PEMBANGUNAN SD ISLAM MAKARIMA KARTASURA Aprilia, Dwi Ayu; Wati, Sri Endang Wijaya Listiya; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i2.489

Abstract

The foundation is part of an engineering system that transmits the load supported by the foundation and its weight to and into the soil and rocks beneath it (Bowles, 1997). The Makarima Islamic Elementary School construction project was built using a 40 cm bored pile foundation. This study aims to determine the axial load transmitted to the foundation using SAP 2000 analysis and to determine the comparison of the foundation's bearing capacity based on the Sondir Test or CPT (Cone Penetration Test) data using various methods, namely based on the Mayerhoff, Schmertmann and Nottingham, and Aoki De Alencer methods. From the results of the SAP 2000 analysis, the axial force value was 162.7823 tons. From the Sondir data, the results of calculating the carrying capacity of a single pile foundation using the Meyerhoff method were 59.68 tons, the Aoki De Alencer method was 39.61 tons, and the Schmertman and Nottingham method was 43.54 tons, while the results of calculating the carrying capacity of the foundation group the Meyerhoff method was 256.89 tons, the Aoki De Alencer method was 170.5 tons, and the Schmeretman and Nottingham method was 187.43 tons. From the results of these calculations, the foundation is safe to use.
ANALISIS EFEKTIVITAS KINERJA LALU LINTAS SESUDAH ADANYA FLYOVER AHMAD YANI (SEMARANG) Permadi, Dede Yusuf; Sutopo, Shafa Tasya; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 3, No 2 (2022): JEI (Jurnal Engineering Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v3i2.371

Abstract

Semarang City is the capital city of Central Java Province, Indonesia as well as the fifth largest metropolitan city in Indonesia after Jakarta, Surabaya, Medan and Bandung. As one of the most developed cities on the island of Java, Semarang City has a population of 1.68 million people. Semarang Ahmad Yani Airport is the most important airport in Central Java. The existence of the airport in the city of Semarang is quite strategic because it is supported by the high intensity of socio- economic activities. Ahmad Yani Airport itself is part of a series of activities in Central Java. As a service-based city, the city of Semarang certainly requires an airport that is able to connect not only national but also international points. The aim of this research is to analyze the conflict points of congestion at the study site after the construction of the Ahmad Yani Airport Flyover and compare the degree of saturation (S) before and after the construction of the Ahmad Yani Airport Flyover. This study is used the 1997 Indonesian Road Capacity Manual (MKJI) method. Results of the analysis concluse degree of saturation 0.16 < 0.19 for the Puri Anjasmoro road section, and 0.19 < 0.28 for the Anjasmoro Raya road section. Meanwhile, the degree of saturation for the Ahmad Yani Airport Flyover Road section, Semarang is 0.10.
PERENCANAAN STRUKTUR BANGUNAN GEDUNG ASRAMA HAJI SEMARANG Rizkiyawan, Fajar; Triyanto, Bambang; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 1 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i1.418

Abstract

Planning the Structure of the Semarang Hajj Dormitory Building is located on Jl. Abdul Rahman Saleh No. 285, Kalipancur, Kec. Ngaliyan, Semarang City, Central Java. This arama was built to improve the facilities and infrastructure of pilgrims in the Semarang area.The planning of this building is carried out with primary data such as data from soil sondir, and is equipped with other secondary data. This structural planning analysis is assisted by the SAP 2000 software application (Structure Analyst Program) for structural modeling and calculating internal forces. The analysis carried out includes: calculation of the structure of the Foundation, Columns, Beams, Plates and Roofs.From the results of the analysis obtained the type of foundation using piles with P1:1.00x1.75x0.70 m with 2 piles measuring 30x30 cm 9 m depth, P2:1.80x1.80x0.70 m with 4 piles measuring 35x35 cm depth 9 m, P3:1,90x1,90x0,70 m with 5 piles measuring 30x30 cm with a depth of 9 m. beam size 40x70 3-D22 principal reinforcement (support) 10-150 shear reinforcement, 3-D22 principal reinforcement (field) 10-150 shear reinforcement. beam size 30x50 2-D22 principal reinforcement (support) 10-150 shear reinforcement, 2-D22 main reinforcement (field) 10-150 shear reinforcement. beam size 15x30 main reinforcement 2-D19 (support) shear reinforcement 10-150, 2-D19 main reinforcement (field) shear reinforcement 10-150. Column 60x60 main reinforcement 8-D25, shear reinforcement 10-150. Column 70x70 main reinforcement 12-D25, shear reinforcement 10-150. Roof rafter beam WF 250.125.6.9, steel column WF 250.125.6.9, gording C. 125.50.20.2,3, roof covering: steel roof (span deck) distance between roof rafter beams 4 m, distance between steel columns 4 m, distance between gording 1 m, bolt diameter using 16 mm and steel anchor diameter 16 mm (length 50 cm). From the calculation results, each element of the building structure can be categorized as safe.
ANALISIS STABILITAS BLOK ANGKUR/BACKSTAY JEMBATAN GANTUNG JURANGSARI KABUPATEN SEMARANG Munif, Ahmad; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i2.491

Abstract

The suspension bridge construction program is part of President Joko Widodo's Nawa Cita Program, namely developing Indonesia from the outskirts. The location of this research is the Jurangsari Suspension Bridge Construction Project, Semarang Regency, while the object of this research is the stability of the anchor blocks.In this research, calculations were carried out on the stability of the anchor blocks. The data used includes design drawing data and soil investigation data at the location. The data was processed and analyzed using the Excel spreadsheet program.The results of the analysis concluded that the stability of the anchor block at the service limit conditions was safe against shear with SF=5.5 > 1.5 and overturning SF= 57.0 >1.5 while under extreme conditions/seismic it was safe against shear with SF= 6.81 >1.1 and overturning SF = 21.09 >1.1. The bearing capacity of the soil to withstand its own weight and the forces acting on the anchor block in the conditions of safe service limits on the allowable bearing capacity with maximum s= 132.52 kN/m2 and s minimum = 119.26 kN/m2, s maximum <s permit 292.137 kN/m2 or 2.20 times greater than the s maximum that occurs, whereas in extreme conditions the soil tension that occurs at s maximum = 190.09 kN/m2 and s minimum = 142.74 kN/m2, s maximum <s permit 292.137 kN/ m2 or 1.54 greater than the maximum s that occurs. Settlement that occurs in the anchor block under safe service limit conditions is Si = 0.441 cm and in extreme conditions is Si = 0.633 cm, both conditions the safety factor for the decrease is £ 1.0 cm.
ANALISA PERBANDINGAN KEKERASAN PAVING DENGAN CAMPURAN ABU BATU DAN PASIR Susanto, Ahmad; Romadhon, Achmad Akbar; Hartopo, Hartopo; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 1 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i1.419

Abstract

Paving block is an environmentally friendly construction where paving blocks are very good at helping groundwater conservation, implementation is faster, easy to install and maintain, has a variety of forms that add aesthetic value, and the price is easy to reach. Therefore, paving blocks are an important building material in the construction of public facilities, especially for road construction in residential areas. The use of paving blocks in the field is still limited to parking lot pavements, sidewalks, parks and connecting buildings. Even though the application of paving block materials is very wide. However, of course, local experience and the successful use of paving blocks will play more and more influence in terms of the application of these materials. Stone ash in this study was used as a substitute for natural fine aggregate (natural sand) with the proportions of 0%, 15%, 30%, 45%, and 60%. To get the optimal compressive strength value, the researcher has the opinion of a combination of fine aggregate of natural sand and rock ash waste with the appropriate percentage. And tested with mortar age of 14 days and 28 days. In the study, the volume weight test of paving blocks with the addition of stone ash waste obtained the highest compressive strength at a variation of 45% for the test at the age of 14 days and 28 days, with the compression test for 14 days reaching a compressive strength of 100.92 kg/cm2 and for the compressive test 28 day reached a compressive strength of 160.28 kg/cm2.
Co-Authors Anassari, Ririn Anggraeni, Savira Mirda Aprilia, Dwi Ayu Budiwan, Diah Wiyani Dewi, Dora Silvia Istiari, Imas Mahfud, Ari Merytsa, Aldila Winda Muhamad Kurniawan, Muhamad MUNIF, AHMAD Ningrum, Hastari Dita Nurrosyid, Muh. Ilham Permadi, Dede Yusuf Rizkiyawan, Fajar Romadhon, Achmad Akbar Rosdiana, Dina Citra Sasi, Windu Susanto, Ahmad Susanto, Hanggara Yudi Sutopo, Shafa Tasya Totok Apriyanto, Totok Triyanto, Bambang Wati, Sri Endang Wijaya Listiya Wibowo Wibowo