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All Journal Astonjadro Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Spektrum Sipil RESLAJ: Religion Education Social Laa Roiba Journal
Syahril Taufik
Dosen Jurusan Teknik Sipil, UNLAM Banjarmasin
Religion Arts Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Engineering Environmental Science Social Sciences Transportation

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Behavior of Piled Raft Foundation in Soft Clay Layer with Geo-Foam Application Gultom, Juni; Pratikso, H; Rochim, Abdul; Taufik, Syahril
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 4, No 4 (2021): Budapest International Research and Critics Institute November
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v4i4.2985

Abstract

Piled raft system proves to be more effective on such problematic soft soil conditions. It takes the high vertical load and used to bring the settlement, differential settlement and tilting of structure within the permissible limit. Piled raft system proves to be cost effective than the conventional pile foundation system. Piled raft foundation accounts for complex soil-structure interaction, which needs interaction between structural engineer and geotechnical engineer. Geo-foam application is introduced below the footing to enhance floating resistance. The performance behavior of piled raft foundation in clayey soil and layered soil is carried out using laboratory experimental and then verified by 2D PLAXIS. There is a significant relationship between the decreases in settlement of the piled raft due to hydrostatic uplift.
Integration of Design and Construction Implementation of Buildings on Soft Soil: Decision Support System Model Approach Anwar, Roy Rizali; Pratikso, Pratikso; Wibowo, Kartono; Taufik, Syahril; Setiawan, Ichwan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18099

Abstract

Construction projects on soft soils face significant technical and financial challenges due to low soil bearing capacity and high potential for settlement. These unique characteristics require effective integration of design and implementation to overcome high risks and improve structural stability. This study develops a Decision Support System (DSS) model based on Analytic Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) applied to the process of selecting foundations and construction methods for buildings on soft soils. This DSS enables a comprehensive assessment of various design alternatives and construction methods based on multi-aspect criteria, including stability, cost, time, material, and environmental conditions. Through data analysis and questionnaires involving construction experts, this DSS was tested on an infrastructure project in the tidal area of ​​South Kalimantan. The results show that this DSS model is effective in supporting the selection of foundations, such as piles and bored piles, which are adjusted to the building load and soil conditions. This DSS also provides implementation priorities that can minimize the risk of project costs and delays. In addition to improving efficiency and accuracy in decision making, this model offers an integrated approach that optimizes every stage of construction from planning to field execution. This DSS contributes to the development of better and more sustainable risk management methods in construction projects on soft soils. These findings are expected to be applied more widely in the construction industry, especially in efforts to manage the high risks associated with soft soil conditions and create more efficient and stable construction.
Evaluasi Sistem Struktur Beton Pracetak Untuk Meningkatkan Kinerja Bangunan Tingkat Tinggi: Studi Kasus Proyek Gkt-Pik2 Utomo, M. Daud; Murtiadi, Suryawan; Taufik, Syahril
Reslaj: Religion Education Social Laa Roiba Journal Vol. 7 No. 11 (2025): RESLAJ: Religion Education Social Laa Roiba Journal
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/reslaj.v7i11.9846

Abstract

The rapid development of the construction industry demands optimization in efficiency and sustainability principles. One approach that is increasingly being considered to address these challenges is the utilization of precast concrete systems. This research evaluates the impact of precast concrete structural system implementation on project performance, with a case study on the Kemah Tabernakel Church project in Pantai Indah Kapuk 2 (GKT-PIK2). Many factors can affect the performance of construction projects, including the 5M+T factors: Man, Measurement, Method, Material, Machine, and Time. The research uses a descriptive qualitative approach combined with quantitative analysis thru field observation, distribution of Likert-scale questionnaires, and expert interviews. Data analysis is performed using correlation tests and multiple linear regression with SPSS software to determine the significance of the impact of precast concrete structure system implementation. The research results indicate that the implementation of the precast system has a significant impact on improving project performance. The five dominant variables affecting performance are design changes, workforce competency, installation methods, tower crane usage, and timely delivery. These five factors have been proven to have a positive and linear relationship with overall project performance achievement. This research concludes that a precast concrete structural system designed according to SNI 9163:2023 regulations, and supported by appropriate technical and managerial strategies, is capable of improving project execution performance. The contribution of this research also provides practical implications in the form of technical recommendations to support the successful implementation of precast systems in multi-story building construction projects.
VALIDASI EKSPERIMENTAL LABORATORIUM PERILAKU LENTUR STRUKTUR BALOK BETON SANDWICH TERHADAP PENGARUH TEMPERATUR TINGGI: Experimental Laboratory Validation Flexural Behavior of Sandwich Concrete Beams Under High Temperature Exposure Affiano, Vembri; Murtiadi, Suryawan; Taufik, Syahril; Akmaluddin, Akmaluddin
Spektrum Sipil Vol 12 No 2 (2025): SPEKTRUM SIPIL
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/spektrum.v12i2.412

Abstract

Concrete is a primary material widely used in structural elements due to its high compressive strength. However, concrete experiences a significant reduction in compressive strength when exposed to elevated temperatures. This study investigates the flexural behavior of normal and sandwich concrete beams subjected to high temperatures. Numerical modeling using ANSYS software was performed to validate laboratory experimental results. The analysis includes load-bearing capacity, stress distribution based on von Mises criteria, and beam deflection. The models consist of normal concrete and sandwich concrete beams with dimensions of 200×300×4000 mm. The compressive strength of normal concrete is 25 MPa, while the lightweight core concrete in the sandwich beam is 15 MPa, with a concrete cover of 20 mm. Reinforcement consists of 3Ø12 mm tensile bars and 2Ø12 mm compressive bars with a yield strength of 300 MPa. Two-point loads were applied symmetrically at one-third of the span from the supports. The results show that the load capacity of normal concrete beams at 20°C, 200°C, 400°C, 600°C, and 800°C are 18.982 kN, 10.899 kN, 8.361 kN, 5.059 kN, and 2.348 kN, respectively, whereas sandwich beams achieve 25.327 kN, 12.101 kN, 7.349 kN, 5.436 kN, and 3.354 kN. It can be concluded that sandwich concrete beams exhibit superior load-bearing stability at elevated temperatures compared to normal concrete beams. Keywords: Concrete beam, Sandwich, Temperature, Stress, Load Capacity
Co-Authors Abdul Rochim Affiano, Vembri Akmaluddin Akmaluddin Anwar, Roy Rizali Juni Gultom Kartono Wibowo, Kartono Khomeini, Muhammad Pratikso Pratikso Pratikso, H Setiawan, Ichwan Suryawan Murtiadi, Suryawan Utomo, M. Daud