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PENGARUH DIAMETER TIANG TERHADAP TAHANAN GESEK TIANG DALAM TANAH LEMPUNG Pradiptiya, Andikanoza; Salimah, A’isyah
Construction and Material Journal Vol 1, No 3 (2019): CONSTRUCTION AND MATERIAL JOURNAL VOL. 1 NO. 3 NOVEMBER 2019
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

AbstractSome buildings impose limits on the foundation displacement that occur with relatively small values so as not to cause structural damage. The test method used was to make a model test box as a testing medium by simulating the actual model into the form of a scale model. The study was conducted using a single pile foundation with reduced scale, made of concrete with a diameter of 0.02 m, 0.03 m, 0.04 m and the length of each pile was 0.4 m. The pile model was mounted by pressing into the clay that had been compacted in the test box and then given a tensile load which refers to ASTM D3689-07 procedure E (Constant Rate of Uplift Test). Mobilization of pile friction resistance at critical displacement determined the frictional resistance of the ultimate pile units. The test results showed that the greater the diameter of the pile, the frictional resistance of the ultimate pile units would increase. The increase in frictional resistance of the ultimate pile units showed an average value of around 17.1%.Keywords : Pile foundation, Pile diameter, Friction resistance.AbstrakMeningkatnya pembangunan hunian mengakibatkan naiknya permintaan akan batako, hal ini tentunya Beberapa konstruksi bangunan memberikan batasan kepada perpindahan tiang yang terjadi dengan nilai yang relatif kecil supaya tidak menyebabkan kerusakan struktur. Metode uji yang dipakai adalah membuat box uji model sebagai media pengujian, dengan mensimulasikan model yang sebenarnya ke dalam bentuk model skala. Penelitian dilakukan menggunakan model pondasi tiang tunggal penampang lingkaran lingkaran skala tereduksi yang terbuat dari beton dengan diameter 0,02 m, 0,03 m, 0,04 m dan panjang  masing-masing tiang adalah 0,4 m. Model tiang dipasang dengan cara ditekan pada tanah lempung yang sudah dipadatkan dalam box uji kemudian diberikan beban tarik yang mengacu pada ASTM D3689-07 prosedur E (Constant Rate of Uplift Test). Mobilisasi tahanan gesek tiang pada perpindahan tiang kritis menetukan tahanan gesek satuan ultimit. Hasil uji memperlihatkan bahwa semakin besar diameter tiang, tahanan gesek satuan ultimit tiang akan bertambah. Peningkatan tahanan gesek satuan ultimit tiang menunjukkan rata-rata sekitar 17,1 %.Kata kunci : Pondasi Tiang, Diameter Tiang, Tahanan Gesek Tiang.
PENGABDIAN KEPADA MASYARAKAT PENINGKATAN ATAP MUSHOLLA AL KHOIRIYAH Pradiptiya, Andikanoza
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 3, No 1 (2020): MITRA AKADEMIA
Publisher : Unit Penelitian dan Pengabdian kepada Masyarakat (UP2M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v3i1.2832

Abstract

 Al Khoiriyah Mosque is one of the Muslim prayer facilities in the neighborhood of Rt.05 /Rw.09, Kp.Lio, Bojong Village Pondok Terong, Cipayung Jaya District, Depok. The mosque is used mainly when praying tarawih during Ramadan. DIV Teknik Konstruksi Gedung Community Service Activities for the DIV Teknik Konstruksi gedung Study Program include upgrading and repairing toilet roofs, ablutions, sloof walls, and ceilings. The work of upgrading and repairing is expected to provide adequate mosque infrastructure to increase piety and faith in God Almighty in the location in question. The specific target of this activity is to improve the physical condition of the mosque in Rt.05 / Rw.09, Kp.Lio, Bojong Village Pondok Terong, Cipayung Jaya District, Depok. The method used to achieve the above objectives involves the collaboration of the Community Service Study Team of the DIV Teknik Konstruksi Gedung, Civil Engineering Department, Jakarta State Polytechnic with residents working together to repair the mosque. This activity is completed within 2 months.
PENGARUH DIAMETER TIANG TERHADAP TAHANAN GESEK TIANG DALAM TANAH LEMPUNG Andikanoza Pradiptiya; A’isyah Salimah
Construction and Material Journal Vol. 1 No. 3 (2019): Construction and Material Journal Vol. 1 No. 3 November 2019
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v1i3.2419

Abstract

AbstractSome buildings impose limits on the foundation displacement that occur with relatively small values so as not to cause structural damage. The test method used was to make a model test box as a testing medium by simulating the actual model into the form of a scale model. The study was conducted using a single pile foundation with reduced scale, made of concrete with a diameter of 0.02 m, 0.03 m, 0.04 m and the length of each pile was 0.4 m. The pile model was mounted by pressing into the clay that had been compacted in the test box and then given a tensile load which refers to ASTM D3689-07 procedure E (Constant Rate of Uplift Test). Mobilization of pile friction resistance at critical displacement determined the frictional resistance of the ultimate pile units. The test results showed that the greater the diameter of the pile, the frictional resistance of the ultimate pile units would increase. The increase in frictional resistance of the ultimate pile units showed an average value of around 17.1%.Keywords : Pile foundation, Pile diameter, Friction resistance.AbstrakMeningkatnya pembangunan hunian mengakibatkan naiknya permintaan akan batako, hal ini tentunya Beberapa konstruksi bangunan memberikan batasan kepada perpindahan tiang yang terjadi dengan nilai yang relatif kecil supaya tidak menyebabkan kerusakan struktur. Metode uji yang dipakai adalah membuat box uji model sebagai media pengujian, dengan mensimulasikan model yang sebenarnya ke dalam bentuk model skala. Penelitian dilakukan menggunakan model pondasi tiang tunggal penampang lingkaran lingkaran skala tereduksi yang terbuat dari beton dengan diameter 0,02 m, 0,03 m, 0,04 m dan panjang  masing-masing tiang adalah 0,4 m. Model tiang dipasang dengan cara ditekan pada tanah lempung yang sudah dipadatkan dalam box uji kemudian diberikan beban tarik yang mengacu pada ASTM D3689-07 prosedur E (Constant Rate of Uplift Test). Mobilisasi tahanan gesek tiang pada perpindahan tiang kritis menetukan tahanan gesek satuan ultimit. Hasil uji memperlihatkan bahwa semakin besar diameter tiang, tahanan gesek satuan ultimit tiang akan bertambah. Peningkatan tahanan gesek satuan ultimit tiang menunjukkan rata-rata sekitar 17,1 %.Kata kunci : Pondasi Tiang, Diameter Tiang, Tahanan Gesek Tiang.
Analisis Daya Dukung Pondasi Spun Pile Dievaluasi Dengan Kalendering Dan PDA Fadilla, Rahma Nur; Pradiptiya, Andikanoza
Journal of Applied Civil Engineering and Infrastructure Technology Vol 3 No 2 (2022): Desember 2022
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v3i2.394

Abstract

In a bridge construction project, there are two types of structures, namely the superstructure and the substructure. The foundation is part of the substructure that functions as the main support and the most important part that greatly affects the stability of the building above it. In foundation design, it is required to calculate the bearing capacity. The bearing capacity of the foundation can be predicted based on soil investigation data which compared by actual field dynamic test data. Dynamic test is carried out to determine the actual bearing capacity after pile installation. This research aims to predict of spun pile bearing capacity and settlement based on N-SPT data, then evaluated by dynamic test (PDA and calendering) at “X” Toll Road Construction Project. Moreover, an evaluation of the axial bearing capacity of single and group piles will be carried out against the workloads. The results shows that prediction of the bearing capacity closest to the PDA data using Luciano Decourt Method (1987) around 309.45 tons with a difference of 4.20% each other. Calendering analysis by Gates Method found that 301.46 tons with a difference of 50.8% against the prediction. The prediction of immediate settlement is obtained of 26.79 mm smaller than PDA result and a difference of 13.30%. The results of the evaluation of the axial bearing capacity of single and group piles against workloads show that both the predicted and actual (PDA and calendering) bearing capacity is greater than the workload.
MOBILIZATION OF MINI PILE UPLIFT RESISTANCE IN SAND Andikanoza Pradiptiya; Yuwono Yuwono; Handi Sudardja; Istiatun Istiatun
Jurnal Poli-Teknologi Vol. 14 No. 1 (2015)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v14i1.728

Abstract

Abstract Shaft resistance of tension pile will be fully mobilized at certain displacement. Some structures impose limits to the displacement of pile with a relatively small value in order not to cause damage. Therefore, it is necessary to know the behavior of pile resistance reaction against load that works in every displacement. The study was conducted using the model of single pile made of concrete with a length of 0,2 m ; 0,3 m ; 0,4 m and each diameter 0,02 m ; 0,03 m ; 0,04 m. The model pile is jacked in sand that has been compacted in a box and then given uplift load that refers to the ASTM D3689-07 procedure E. Pile resistance reaction is shown by pile friction modulus and determined by mobilized unit shaft resistance and pile displacement relationship. The results showed that mobilization of uplift resistance of mini pile that has been counted using friction modulus can only approach the value of true observations, so that it requires further consideration as design parameter. Keywords : Mini pile, sand , uplift resistance.
UJI TAHANAN GESEK MODEL FONDASI TIANG TERHADAP PERPINDAHAN KECIL DI DALAM BOX UJI Andikanoza Pradiptiya; Yuwono Yuwono
Jurnal Poli-Teknologi Vol. 15 No. 1 (2016)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v15i1.779

Abstract

ABSTRACT Some buildings imposes limits to pile foundation displacement with relatively small value so as not to cause damage to the structure. Loading test directly in the field requires a very high cost. To overcome this problem, it can be approached with a more economical cost, that is to move it into a certain scale models. The method used is to create a media model as a test box testing, by simulating the actual model in the form of a scale model. This method is fairly cheap and efficient as it can be used for various models and can be used repeatedly. The study was conducted using models of reduced scale single pile foundation made of concrete with a length of 0.2 m, 0.3 m, 0.4 m and each diameter of 0.02 m, 0.03 m, 0.04 m. Pile model is jacked in clay soil that has been compacted in a box and then given a tensile load test referring to ASTM D3689-07 procedure E (Constant Rate of Uplift Test). Mobilization of frictional resistance is determined from the pile frictional resistance force and displacement of the pile. The results showed that the frictional resistance value is reduced to the value at a particular displacement or at critical displacement pile. Keywords : scaled pile foundation , test box , small displacement , clay ABSTRAK Beberapa konstruksi bangunan memberikan batasan kepada perpindahan tiang yang terjadi dengan nilai relatif kecil agar tidak menyebabkan kerusakan struktur. Uji pembebanan langsung di lapangan memerlukan biaya yang sangat tinggi. Untuk mengatasi masalah ini maka dapat dilakukan pendekatan dengan biaya yang lebih ekonomis yaitu dengan memindahkan media lapangan ke media laboratorium dengan skala model tertentu. Metode yang dipakai adalah membuat box uji model sebagai media pengujian, dengan mensimulasikan model yang sebenarnya ke dalam bentuk model skala. Metode ini cukup murah dan efisien karena dapat dipergunakan untuk berbagai model dan dapat dipergunakan secara berulang. Penelitian dilakukan menggunakan model fondasi tiang tunggal skala tereduksi yang terbuat dari beton dengan panjang 0,2 m, 0,3 m, 0,4 m dan masing-masing diameter 0,02 m, 0,03 m, 0,04 m. Model tiang dipasang dengan cara ditekan pada tanah lempung yang sudah dipadatkan dalam box uji kemudian diberikan beban tarik yang mengacu pada ASTM D3689-07 prosedur E (Constant Rate of Uplift Test). Mobilisasi tahanan gesek tiang ditentukan dari tahanan gesek satuan dan perpindahan tiang. Hasil penelitian menunjukkan bahwa nilai tahanan gesek berkurang pada nilai perpindahan tiang tertentu atau pada perpindahan tiang kritis. Kata kunci : model pondasi, box uji, perpindahan kecil, lempung
UJI TAHANAN TARIK MODEL FONDASI TIANG DALAM TANAH PASIR Andikanoza Pradiptiya; Yuwono Yuwono
Jurnal Poli-Teknologi Vol. 18 No. 1 (2019)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v18i1.1301

Abstract

ABSTRACTCertain buildings limit displacement of pile foundation with relatively small value so as not to cause damage to the structure. Loading test directly in the field requires a very high cost. To overcome this problem, it can be approached with a more economical cost, that is to move it into a certain scale models. The method used is to create a media model as a test box testing, by simulating the actual model in the form of a scale model. This method is fairly cheap and efficient as it can be used for various models and can be used repeatedly. The study was conducted using models of reduced scale single pile foundation made of concrete with a length of 0.2 m, 0.3 m, 0.4 m and each diameter of 0.02 m, 0.03 m, 0.04 m. Pile model is jacked in clay soil that has been compacted in a box and then given a tensile load test referring to ASTM D3689-07 procedure E (Constant Rate of Uplift Test). Mobilization of uplift resistance is determined from the pile frictional resistance force and displacement of the pile. The results showed that the frictional resistance value is reduced to the value at a particular displacement or at critical displacement pile.Key words : uplift resistance , sand, mini pile.ABSTRAKBeberapa konstruksi bangunan memberikan batasan kepada perpindahan tiang yang terjadi dengan nilai yang relatif kecil supaya tidak menyebabkan kerusakan struktur. Metode uji yang dipakai adalah membuat box uji model sebagai media pengujian, dengan mensimulasikan model yang sebenarnya ke dalam bentuk model skala. Penelitian dilakukan menggunakan model fondasi tiang tunggal skala tereduksi yang terbuat dari beton dengan panjang 0,2 m, 0,3 m, 0,4 m dan masing-masing diameter 0,02 m, 0,03 m, 0,04 m. Model tiang dipasang dengan cara ditekan pada tanah pasir yang sudah dipadatkan dalam box uji kemudian diberikan beban tarik yang mengacu pada ASTM D3689-07 prosedur E (Constant Rate of Uplift Test). Tahanan tarik tiang ditentukan tahanan gesek satuan dan perpindahan tiang berdasarkan variasi pengaruh diameter dan panjang tiang. Hasil penelitian menunjukkan bahwa nilai tahanan gesek satuan ultimit (fs) dan perpindahan kritis (δc) relatif menurun dengan bertambahnya ukuran diameter (d) tiang tetapi sebaliknya nilai fs tiang meningkat dengan dengan bertambahnya ukuran panjang (L) tiang. Semakin besar panjang tiang memperlihatkan kecenderungan bahwa pengaruh tekanan tanah lateral pasir terhadap selimut tiang meningkat sehingga memberikan kontribusi tahanan gesek yang lebih besar, sedangkan penambahan diameter tiang tidak meningkatkan tekanan tanah lateral pasir terhadap tiang.Katakunci : Tahanan tarik, pasir, Model Fondasi tiang.
PENGABDIAN KEPADA MASYARAKAT PENINGKATAN ATAP MUSHOLLA AL KHOIRIYAH Pradiptiya, Andikanoza
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 3 No 1 (2020): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v3i1.2832

Abstract

 Al Khoiriyah Mosque is one of the Muslim prayer facilities in the neighborhood of Rt.05 /Rw.09, Kp.Lio, Bojong Village Pondok Terong, Cipayung Jaya District, Depok. The mosque is used mainly when praying tarawih during Ramadan. DIV Teknik Konstruksi Gedung Community Service Activities for the DIV Teknik Konstruksi gedung Study Program include upgrading and repairing toilet roofs, ablutions, sloof walls, and ceilings. The work of upgrading and repairing is expected to provide adequate mosque infrastructure to increase piety and faith in God Almighty in the location in question. The specific target of this activity is to improve the physical condition of the mosque in Rt.05 / Rw.09, Kp.Lio, Bojong Village Pondok Terong, Cipayung Jaya District, Depok. The method used to achieve the above objectives involves the collaboration of the Community Service Study Team of the DIV Teknik Konstruksi Gedung, Civil Engineering Department, Jakarta State Polytechnic with residents working together to repair the mosque. This activity is completed within 2 months.