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Totok Apriyanto
Program Studi Teknik Sipil Fakultas Teknik Universitas Darul Ulum Islamic Centre Sudirman
Civil Engineering, Building, Construction & Architecture Engineering Transportation

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ANALISIS STABILITAS BLOK ANGKUR/BACKSTAY JEMBATAN GANTUNG JURANGSARI KABUPATEN SEMARANG Ahmad Munif; Hartopo Hartopo; Totok Apriyanto
JTI (Jurnal Teknik Indonesia) Vol 4, No 2 (2023): Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

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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.
STUDI KOMPARASI KAPASITAS AXIAL BORED PILE DENGAN BERBAGAI FORMULA PADA PEMBANGUNAN SD ISLAM MAKARIMA KARTASURA Dwi Ayu Aprilia; Sri Endang Wijaya Listiya Wati; Hartopo Hartopo; Totok Apriyanto
JTI (Jurnal Teknik Indonesia) Vol 4, No 2 (2023): Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

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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.
Co-Authors Ahmad Munif Dwi Ayu Aprilia Hartopo Hartopo Hartopo Hartopo Sri Endang Wijaya Listiya Wati