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KARAKTERISTIK MORTAR GEOPOLIMER BERBASIS FLY ASH KELAS C DENGAN PENAMBAHAN BORAKS A. Bamban Yuuwono; Kukuh Kurniawan Dwi Sungkono
Jurnal Teknik Sipil dan Arsitektur Vol. 29 No. 1 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i1.2895

Abstract

Cement has been widely utilized as a primary material in the construction of structural and architectural elements. The cement factory industry can contribute to 30% of global carbon dioxide emissions. Geopolymers were first introduced by Davidovits in 1979 to represent inorganic polymers produced from geochemistry. Geopolymer materials make use of waste materials such as fly ash as a substitute for concrete binders. In this study, Class C (high calcium) fly ash from the Paiton Power Plant was used. The mix design for geopolymer mortar in this study employed the absolute volume calculation method. Absolute volume calculations are based on the absolute volume proportions of each constituent material within 1 m3. The compressive strength of geopolymer mortar with the addition of 5% borax to the molarity value, the alkali/cementitious ratio showed good performance in the mechanical properties of geopolymer mortar. Alkali/cementitious ratios of 0.3, 0.35, and 0.4 in Class C-based geopolymer mortar with 5% borax addition exhibited good workability, making it suitable for use as a base material in architectural material production.
ANALISIS KINERJA STRUKTUR PADA GEDUNG BERTINGKAT DENGAN ANALISIS PUSHOVER BERDASARKAN ATC-40: ANALISIS KINERJA STRUKTUR PADA GEDUNG BERTINGKAT DENGAN ANALISIS PUSHOVER BERDASARKAN ATC-40 Kukuh Kurniawan Dwi Sungkono; Ega Ayu Krisdianti; Gunarso Gunarso
Jurnal Teknik Sipil dan Arsitektur Vol. 29 No. 2 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i2.3300

Abstract

Indonesia is an area prone to earthquakes. Earthquakes can cause infrastructure damage and casualties. Efforts are needed to reduce the risk of earthquake hazards by strengthening earthquake-resistant infrastructure. The design procedures for earthquake-resistant buildings are carried out using a performance-based design approach. Building performance can be estimated through non-linear static pushover analysis. This research takes a case study in Jongke Market, Surakarta. This research aims to determine the capacity curve, performance level, and structure collapse mechanism. The method used is pushover analysis with the capacity spectrum. The result of this analysis is a capacity curve that processed to determine the level of structure performance referring to the drift ratio limitation table in the Applied Technology Council (ATC-40). Based on the results of this research, displacement that occurred in the x direction is 92 mm and in the y direction is 77 mm. Building displacement is good because the displacement that occurred is smaller than the displacement limit (control). The total maximum drift in the x direction is 0.007 and in the y direction is 0.006. The maximum inelastic total drift in the x direction is 0.005 and in the y direction is 0.004. Based on the drift ratio limitation table in the ATC-40 document, this building has an immediate occupancy performance level. Based on the plastic hinge mechanism formed, the existing structure also meets the ideal collapse concept (strong column-weak beam).
ANALISIS GEOTEKNIK DAN KESTABILAN LERENG TOWER SUTT PT. PLN (Studi kasus: TW. 203 Pembangunan T/L 150 KV GI KAMBANG – GI TAPAN): ANALISIS GEOTEKNIK DAN KESTABILAN LERENG TOWER SUTT PT. PLN (Studi kasus: TW. 203 Pembangunan T/L 150 KV GI KAMBANG – GI TAPAN) Kukuh Kurniawan Dwi Sungkono; Reki Arbianto; Made Eka Prayuda Pande; Gunarso Gunarso
Jurnal Teknik Sipil dan Arsitektur Vol. 29 No. 2 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i2.3847

Abstract

Slope instability is caused by several lithological and structural factors, slope geometry, relative relief, ground water, as well as changes in use and land cover. Mountainous areas, development and expansion of infrastructure networks can inadvertently cause natural slope shifts, thereby negatively impacting the stability of the excavated slope. Analysis of the geotechnical properties of soil and rock is important for understanding and predicting the possibility of landslides at certain locations. Geotechnical analysis is needed to carry out slope stability analysis which is carried out using GEO5 software. Construction of T/L 150 KV GI Kambang – GI Tapan, Tower TW. 203 with a tower structure at the top of the slope. Based on these conditions, a comprehensive study is needed to analyze the stability of natural slopes due to tower loads. Soil Type, Parameters c' and ?' (Drained), Parameters Cu and ? (Undrained) and soil properties index are based on CPT test results. The Bishop, Spencer, Janbu and Morgenstern-Price methods on natural slopes, tower loads, Natural with Tower+Pile Loads, Natural Slopes with Tower+Pile Loads, Earthquake Loads produce a safe condition against failure in Short-Term (Construction) and Long-Term conditions. Term (Operational). Analysis of the Fellenius method on natural slopes and tower loads in Short-Term (Construction) and Long-Term (Operational) conditions shows unsafe conditions. The safety factors resulting from the Bishop, Spencer, Janbu and Morgenstern-Price methods do not show significant differences in values.
KARAKTERISTIK MORTAR GEOPOLIMER BERBASIS FLY ASH KELAS C DENGAN PENAMBAHAN BORAKS Yuuwono, A. Bamban; Sungkono, Kukuh Kurniawan Dwi
Jurnal Teknik Sipil dan Arsitektur Vol. 29 No. 1 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i1.2895

Abstract

Cement has been widely utilized as a primary material in the construction of structural and architectural elements. The cement factory industry can contribute to 30% of global carbon dioxide emissions. Geopolymers were first introduced by Davidovits in 1979 to represent inorganic polymers produced from geochemistry. Geopolymer materials make use of waste materials such as fly ash as a substitute for concrete binders. In this study, Class C (high calcium) fly ash from the Paiton Power Plant was used. The mix design for geopolymer mortar in this study employed the absolute volume calculation method. Absolute volume calculations are based on the absolute volume proportions of each constituent material within 1 m3. The compressive strength of geopolymer mortar with the addition of 5% borax to the molarity value, the alkali/cementitious ratio showed good performance in the mechanical properties of geopolymer mortar. Alkali/cementitious ratios of 0.3, 0.35, and 0.4 in Class C-based geopolymer mortar with 5% borax addition exhibited good workability, making it suitable for use as a base material in architectural material production.
ANALISIS KINERJA STRUKTUR PADA GEDUNG BERTINGKAT DENGAN ANALISIS PUSHOVER BERDASARKAN ATC-40: ANALISIS KINERJA STRUKTUR PADA GEDUNG BERTINGKAT DENGAN ANALISIS PUSHOVER BERDASARKAN ATC-40 Kukuh Kurniawan Dwi Sungkono; Krisdianti, Ega Ayu; Gunarso, Gunarso
Jurnal Teknik Sipil dan Arsitektur Vol. 29 No. 2 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i2.3300

Abstract

Indonesia is an area prone to earthquakes. Earthquakes can cause infrastructure damage and casualties. Efforts are needed to reduce the risk of earthquake hazards by strengthening earthquake-resistant infrastructure. The design procedures for earthquake-resistant buildings are carried out using a performance-based design approach. Building performance can be estimated through non-linear static pushover analysis. This research takes a case study in Jongke Market, Surakarta. This research aims to determine the capacity curve, performance level, and structure collapse mechanism. The method used is pushover analysis with the capacity spectrum. The result of this analysis is a capacity curve that processed to determine the level of structure performance referring to the drift ratio limitation table in the Applied Technology Council (ATC-40). Based on the results of this research, displacement that occurred in the x direction is 92 mm and in the y direction is 77 mm. Building displacement is good because the displacement that occurred is smaller than the displacement limit (control). The total maximum drift in the x direction is 0.007 and in the y direction is 0.006. The maximum inelastic total drift in the x direction is 0.005 and in the y direction is 0.004. Based on the drift ratio limitation table in the ATC-40 document, this building has an immediate occupancy performance level. Based on the plastic hinge mechanism formed, the existing structure also meets the ideal collapse concept (strong column-weak beam).
ANALISIS GEOTEKNIK DAN KESTABILAN LERENG TOWER SUTT PT. PLN (Studi kasus: TW. 203 Pembangunan T/L 150 KV GI KAMBANG – GI TAPAN): ANALISIS GEOTEKNIK DAN KESTABILAN LERENG TOWER SUTT PT. PLN (Studi kasus: TW. 203 Pembangunan T/L 150 KV GI KAMBANG – GI TAPAN) Kukuh Kurniawan Dwi Sungkono; Arbianto, Reki; Pande, Made Eka Prayuda; Gunarso, Gunarso
Jurnal Teknik Sipil dan Arsitektur Vol. 29 No. 2 (2024): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v29i2.3847

Abstract

Slope instability is caused by several lithological and structural factors, slope geometry, relative relief, ground water, as well as changes in use and land cover. Mountainous areas, development and expansion of infrastructure networks can inadvertently cause natural slope shifts, thereby negatively impacting the stability of the excavated slope. Analysis of the geotechnical properties of soil and rock is important for understanding and predicting the possibility of landslides at certain locations. Geotechnical analysis is needed to carry out slope stability analysis which is carried out using GEO5 software. Construction of T/L 150 KV GI Kambang – GI Tapan, Tower TW. 203 with a tower structure at the top of the slope. Based on these conditions, a comprehensive study is needed to analyze the stability of natural slopes due to tower loads. Soil Type, Parameters c' and ?' (Drained), Parameters Cu and ? (Undrained) and soil properties index are based on CPT test results. The Bishop, Spencer, Janbu and Morgenstern-Price methods on natural slopes, tower loads, Natural with Tower+Pile Loads, Natural Slopes with Tower+Pile Loads, Earthquake Loads produce a safe condition against failure in Short-Term (Construction) and Long-Term conditions. Term (Operational). Analysis of the Fellenius method on natural slopes and tower loads in Short-Term (Construction) and Long-Term (Operational) conditions shows unsafe conditions. The safety factors resulting from the Bishop, Spencer, Janbu and Morgenstern-Price methods do not show significant differences in values.
ANALISIS PENGGUNAAN ALAT BERAT PADA PEKERJAAN TANAH PROYEK PEMBANGUNAN HOTEL MOXY SURAKARTA Astungkoro, Wisnu Wregas; Nursetyo, Gatot; Arbianto, Reki; Sungkono, Kukuh Kurniawan Dwi
Journal of Civil Engineering and Infrastructure Technology Vol 3 No 2 (2024): JCEIT
Publisher : Civil Engineering, Faculty of Engineering, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jceit.v3i2.4262

Abstract

In construction projects, implementation requires heavy equipment to expedite all stages in process. The use of heavy equipment serves to shorten project implementation time and optimize a job. Therefore, the use of heavy equipment in construction projects is expected to accelerate expected work. The use of heavy equipment in construction projects is expected to facilitate existing work and heavy equipment to be used must be selected in an efficient and economical manner. A heavy equipment combination used in earthworks on the Moxy Hotel development project on Jl. Slamet Riyadi, Keprabon, Banjarsari District, Surakarta City is a Kobelco CAT 320D excavator, a Canter 120 Ps dump truck and a Jove JVR 180 D bore machine. The methods used in this research are survey methods and analytical methods. The survey method is used to determine number of heavy equipment in field, heavy equipment type while analytical method is used to determine time heavy equipment is used in the Moxy Hotel Development Project in Surakarta. After an analysis of variations in the duration of heavy equipment that is appropriate and can be used optimally is an alternative because it is more effective and efficient than the calculation of composition analysis and in the field, the time required is also more optimum. With an alternative composition of heavy equipment, namely 1 unit of excavator and 4 units of dump trucks for earthworks, and for foundation drilling work, 2 units of bore machines are needed.
ANALISIS DAYA DUKUNG TIANG PANCANG STEEL PIPE PILE BERDASARKAN DATA KALENDERING DAN PDA TEST (Studi Kasus: Project Strengthening Jetty 1 & Jetty 2 PLH Existing, Desa Paring Lahung, Kec. Montallat, Kab. Barito Utara, Kalimantan Tengah) Kukuh Kurniawan Dwi Sungkono; Arbianto, Reki; Wijayanti, Paska; Prasetyo, Erwin Aji; Kurniawan, Rizal
Jurnal Teknik Sipil dan Arsitektur Vol. 30 No. 1 (2025): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v30i1.4606

Abstract

In the field of construction, particularly in geotechnical engineering, uncertainties in foundation design approaches are frequently encountered. Geotechnical uncertainties, especially in foundation design, pose complex challenges due to the heterogeneous nature of soil and data limitations. Dynamic load testing on pile foundations is an alternative method to static load testing in geotechnical engineering for evaluating pile capacity and behavior. The results of this analysis will be compared to the design capacity of pile foundations in the breasting dolphin structure. This study on a breasting dolphin structure utilizing Steel Pipe Pile (SPP) foundations with a diameter 610 mm. PDA tests were conducted on piles at points G6-23, G7-33, G7-38, and G8-46. The study begins with a literature review to comprehend methods and theories related to pile capacity analysis based on calendaring and PDA testing. Calendaring data were analyzed using empirical methods such as the Hiley Formula to estimate the dynamic bearing capacity of each pile. The pile capacity calculated using the Hiley Formula is generally higher than the results obtained from the Case Method and CAPWAP Analysis. The relationship between pile capacity based on the Hiley Formula (calendaring) and the Case Method (PDA test) yielded a linear regression equation of y = 1.0785x - 983.07 with R² = 0.2385, indicating a weak correlation. Meanwhile, the relationship between pile capacity from the Hiley Formula (calendaring) and CAPWAP Analysis (PDA test) resulted in a linear regression equation of y = -0.006x + 2909.8 with R² = 1×10?¹, indicating almost no linear correlation between the two.
ANALISIS DAYA DUKUNG TIANG PANCANG STEEL PIPE PILE BERDASARKAN DATA KALENDERING DAN PDA TEST (Studi Kasus: Project Strengthening Jetty 1 & Jetty 2 PLH Existing, Desa Paring Lahung, Kec. Montallat, Kab. Barito Utara, Kalimantan Tengah) Kukuh Kurniawan Dwi Sungkono; Arbianto, Reki; Wijayanti, Paska; Prasetyo, Erwin Aji; Kurniawan, Rizal
Jurnal Teknik Sipil dan Arsitektur Vol. 30 No. 1 (2025): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v30i1.4606

Abstract

In the field of construction, particularly in geotechnical engineering, uncertainties in foundation design approaches are frequently encountered. Geotechnical uncertainties, especially in foundation design, pose complex challenges due to the heterogeneous nature of soil and data limitations. Dynamic load testing on pile foundations is an alternative method to static load testing in geotechnical engineering for evaluating pile capacity and behavior. The results of this analysis will be compared to the design capacity of pile foundations in the breasting dolphin structure. This study on a breasting dolphin structure utilizing Steel Pipe Pile (SPP) foundations with a diameter 610 mm. PDA tests were conducted on piles at points G6-23, G7-33, G7-38, and G8-46. The study begins with a literature review to comprehend methods and theories related to pile capacity analysis based on calendaring and PDA testing. Calendaring data were analyzed using empirical methods such as the Hiley Formula to estimate the dynamic bearing capacity of each pile. The pile capacity calculated using the Hiley Formula is generally higher than the results obtained from the Case Method and CAPWAP Analysis. The relationship between pile capacity based on the Hiley Formula (calendaring) and the Case Method (PDA test) yielded a linear regression equation of y = 1.0785x - 983.07 with R² = 0.2385, indicating a weak correlation. Meanwhile, the relationship between pile capacity from the Hiley Formula (calendaring) and CAPWAP Analysis (PDA test) resulted in a linear regression equation of y = -0.006x + 2909.8 with R² = 1×10?¹, indicating almost no linear correlation between the two.
ASESMEN BANGUNAN GEDUNG PERKULIAHAN 3 LANTAI KAMPUS 2 UTP SURAKARTA Reki Arbianto; Suryo Handoyo; Kukuh Kurniawan Dwi Sungkono; Teguh Yuono; Erni Mulyandari; Paska Wijayanti; Atika Candra Yulia; Tri Hartanto; Tiara Cika Kusuma; Muhammad Taufik Kristianto
GANESHA: Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2025): Januari 2025
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Tunas Pembangunan Surakarta (UTP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/ganesha.v5i1.4528

Abstract

Bangunan gedung lantai 3 UTP Surakarta Kampus II dibangun sekitar tahun 1990an dengan material beton bertulang. Bangunan gedung bertingkat ini berlokasi di jalan Walanda Maramis No.31, Nusukan, Kec. Banjarsari, Kota Surakarta. Gedung ini berfungsi sebagai tempat perkuliahan pada lantai 1 dan 2, serta ruang olahraga pada lantai 3. Dalam proses perencanaan bangunan gedung, perhitungan struktur menjadi salah satu elemen kunci yang tak dapat diabaikan. Dokumen perhitungan struktur merupakan rangkaian detail yang menjelaskan analisis dan perhitungan teknis terhadap kekuatan dan stabilitas suatu struktur bangunan. Dokumen teknis bangunan gedung lantai 3 UTP Surakarta perlu dibuat dalam upaya untuk menganalisis kekuatan struktur terhadap resiko bencana kegempaan saat ini. Asesmen bangunan gedung perlu dilakukan untuk menjadi pedoman dalam perencanaan dan perubahan fungsi bangunan yang mungkin dilakukan kedepannya. Berdasarkan permasalahan diatas, maka diusulkan kegiatan Pengabdian kepada Masyarakat dengan tema “Asesmen Mutu Beton Dan Tulangan Bangunan Gedung Perkuliahan 3 Lantai Kampus 2 UTP Surakarta”. Tahapan dan teknis pelaksanaan pengabdian msyarakat ini difokuskan pada kegiatan survey dan pengujian lapangan. Kegiatan survey dan pegujian lapangan sendiri terdiri dari beberapa tahap mulai dari persiapan, survey denah dan pelaksanaan pengujian lapangan. Hasil survei pada elemen stuktur beton bertulang menunjukkan kondisi yang masih baik dan tidak terjadi retak struktural. Hasil survei pada struktur atap baja, menunjukkan karat pada profile sturktur. Tetapi kondisi karat tidak mendegradasi penampang elemen yang dapat mengurangi kekuatan. Hasil destructive test yang dilakukan menunjukkan kuat tekan beton minimal sebesar 11.70 MPa dan terbesar 22.50 MPa.