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All Journal Construction and Material Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) JURNAL POLI-TEKNOLOGI
Andrias Rudi Hermawan
Politeknik Negeri Jakarta
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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MODIFIKASI STRUKTUR GEDUNG DENGAN BETON PRACETAK PADA APARTEMEN THE CONEXIO Devania, Adita; Hermawan, Andrias Rudi
Construction and Material Journal Vol 2, No 2 (2020): CONSTRUCTION AND MATERIAL JOURNAL VOL. 2 NO. 2 JULI 2020
Publisher : Politeknik Negeri Jakarta

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

Abstract

Abstract  The Conexio Appartements in actual condition are designed using conventional reinforced concrete method and does not have good quality. While in the project also often afected by the weather. The use of precast concrete are having some excellence of them are not affected by the weather, well maintained quality, and earthquake resistant. The connection between the precast elements play an important role in precast buildings to make the buildings resistant to earthquake. This modification is intended to created earthquake resistant precast building  according to SNI 2847:2013 with good quality control. In this study, the building will be modified into 8 floors precast building as planned and reviewed which will be analyzed by ETABS. From the results of the modification according to SNI 1726:2012 and SNI 2847:2013 we obtained, main beam dimension 40x60cm, secondary beam 35x55 cm, column dimension 65x65 cm, overtopping 6 cm for slab and using Splice sleeve grout for column to column connection, lap splices 500mm for beam-column connection, and 30x40cm for concrete consol dimension.Keywords : Precast, Splice Sleeve, Wet Connection.Abstrak Apartemen The Conexio pada kondisi sebenarnya dirancang menggunakan metode konvensional dengan kondisi mutu yang kurang baik. Dalam pelaksanannya, proyek tersebut juga sering terganggu oleh cuaca. Penggunaan beton pracetak memiliki beberapa keunggulan diantaranya pelaksanaannya tidak terpengaruh oleh cuaca, memiliki mutu yang terjaga dan tahan gempa. Sambungan antar elemen pracetak sangat berperan penting dalam bangunan dengan beton pracetak yang tahan gempa sehingga perlu diperhitungkan sesuai dengan peraturan. Modifikasi ini ditujukan untuk menghasilkan gedung dengan pracetak yang tahan gempa sesuai dengan SNI 2847:2013 dengan pengendalian mutu yang baik. Dalam studi ini, gedung tersebut akan dilakukan modifikasi struktur menjadi beton pracetak dengan tinjauan 8 lantai dan analisa dibantu dengan software ETABS. Dari hasil modifikasi yang dilakukan, elemen-elemen pracetak sesuai dengan ketentuan SNI 1726:2012 dan SNI 2847:2013 yaitu meliputi ukuran balok induk 40x60cm, ukuran balok anak 35x55 cm, dengan kolom berdimensi 65x65 cm, tebal overtopping 6 cm pada pelat dan menggunakan Splice sleeve grout pada sambungan kolom, penyambungan balok-kolom dengan panjang penyaluran 500 mm dan penggunaan konsol pada kolom dengan dimensi 30x40cm. Kata kunci  : Beton Pracetak, Splice Sleeve, Sambungan Basah.  
MODIFIKASI STRUKTUR GEDUNG DENGAN BETON PRACETAK PADA APARTEMEN THE CONEXIO Adita Devania; Andrias Rudi Hermawan
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3092

Abstract

The Conexio Appartements in actual condition are designed using conventional reinforced concrete method and does not have good quality. While in the project also often afected by the weather. The use of precast concrete are having some excellence of them are not affected by the weather, well maintained quality, and earthquake resistant. The connection between the precast elements play an important role in precast buildings to make the buildings resistant to earthquake. This modification is intended to created earthquake resistant precast building  according to SNI 2847:2013 with good quality control. In this study, the building will be modified into 8 floors precast building as planned and reviewed which will be analyzed by ETABS. From the results of the modification according to SNI 1726:2012 and SNI 2847:2013 we obtained, main beam dimension 40x60cm, secondary beam 35x55 cm, column dimension 65x65 cm, overtopping 6 cm for slab and using Splice sleeve grout for column to column connection, lap splices 500mm for beam-column connection, and 30x40cm for concrete consol dimension. Keywords : Precast, Splice Sleeve, Wet Connection.
PELAKSANAAN PEKERJAAN STRUKTUR ATAS DENGAN BETON PRACETAK PADA PROYEK GEDUNG Sri Haryati; Andrias Rudi Hermawan
Construction and Material Journal Vol. 3 No. 2 (2021): Construction and Material Journal Vol. 3 No. 2 Juli 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i2.3901

Abstract

The implementation of upper structure works in the BPJS Kesehatan Jakarta Pusat building project, using conventional reinforced concrete in the process which requires a long time. However, the needs for constructing a BPJS building service center encourages effective and efficient methods of carrying out structural work in terms of timeliness, practicality, strength, and stability of the structure. Precast reinforced concrete structures as an alternative technology in carrying out structural work have several advantages over conventional reinforced concrete. The main differences are the connection, concrete quality, and erection; significantly related to the cost and time of implementation. This study aims to calculate the connection using the wet connection system, analyze aspects of cost, quality, time, and work implementation of the use of precast reinforced concrete by making comparisons using conventional reinforced concrete in the BPJS Kesehatan Jakarta Pusat building project. This research was conducted by analyzing the method of carrying out structural work on precast concrete. The data needed is in the form of unit yard prices, Standard Operating Procedures for implementing precast concrete works, unit prices for precast concrete products. Data collections are done by direct observation and interview with Project Manager. Calculation of distribution length for precast concrete joints refers to SNI 2847: 2013 while the cost of precast concrete refers to SNI 7832: 2017. The results of the study stated that lap-splice (ld) for the 420 mm beam-beam connection of 228 mm hooks, 320 mm beam of 228 mm hooks, between the plates of 150 mm, columns of 880 mm; the cost decreased 25,43% compared to conventional concrete; precast concrete takes 56 days, 7 days faster or 11,11% compared to conventional concrete. Keywords: Precast Concrete, Implementation Method, Joint, Cost and Time.
ANALISIS SAMBUNGAN BALOK PRECAST SEDERHANA DENGAN SISTIM DOUBLE LAPSPLICES MIDDLE WET JOINT DI MOMEN MAKSIMUM Andrias Rudi Hermawan
Jurnal Poli-Teknologi Vol. 20 No. 1 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i1.2998

Abstract

Pada penelitian sambungan balok pracetak sederhana dengan sistm double lapsplices middle wet joint pada balok pracetak ini telah dihasilkan suatu perbandingan kekuatan lentur antara balok pracetak dengan sambungan di tengah bentang (middle wet joint) dengan balok konvensional. Metoda pengujian yang diterapkan adalah pembebanan satu titik pada balok di tengah bentang.Dari hasil yang ada terlihat bahwa performa balok pracetak yang disambung di tengah bentang dengan sistim middle wet joint dibandingkan dengan balok konvensional adalah lebih baik, hal itu dibuktikan pada kurva hubungan lendutan-beban antara benda uji konvensional 1 dan benda uji konvensional 2 dengan benda uji pracetak 1 dan benda uji precast 2. Dari kurva yang ada diketahui bahwa benda uji balok pracetak 1 mempunyai lendutan 10 mm pada beban 151,8 KN dan benda uji precast 2 mempunyai lendutan 16 mm pada beban 169,2 KN sedangkan pada benda uji konvensional 1 mempunyai lendutan 47 mm pada beban 145,5 KN dan benda uji 2 mempunyai lendutan 40 mm pada beban 144,7.KN. Kesimpulan dari penelitian ini adalah bahwa balok precast mempunyai performa yang lebih baik dibandingkan balok konvensional.
CONNECTION OF PRECAST BEAM WITH HIGH PERFORMANCE STRENGTH OF CONCRETE (HPSC) SYSTEM Hermawan, Andrias Rudi; Setiawan, Yanuar; Suripto; Sasmita, Eka Mulya
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 6 No. 2 (2025): Sustainable Materials and Modern Structural Systems in Civil Engineering
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v6i2.7051

Abstract

The application of high-performance strength concrete (HPSC) in precast beam systems is gaining attention as a means to enhance construction efficiency and structural performance. Previous studies, such as those by Graybeal, have demonstrated the effectiveness of ultra-high-performance concrete (UHPC) in precast bridge deck applications. Similarly, materials like epoxy grout, epoxy-based grout, and rapid-set concrete have shown favorable properties for accelerating construction processes and improving durability. This research aims to evaluate the feasibility of using HPSC in precast beam connections, specifically to reduce the required length of reinforcement at the joint. The goal is to develop a system that can be effectively implemented in global construction practices. The study investigates a precast beam system using HPSC and compares it to a conventional cast-in-place beam. The focus is on key performance metrics including deflection, ultimate load capacity, and ductility. The influence of compressive strength on reinforcement length reduction is assessed in reference to ACI guidelines, which suggest that higher concrete compressive strength allows for shorter rebar development lengths. The precast beam (P1) utilizing the HPSC system achieved a compressive strength of fc’ = 44.81 MPa at the connection. Compared to the conventional beam (K1), P1 showed improved structural behavior, with a reduced deflection of 40.11 mm at an ultimate load of 110.02 kN, whereas K1 exhibited a deflection of 138.11 mm at an ultimate load of 113.82 kN. The ductility of the HPSC system was measured at 4.81, indicating enhanced deformation capacity under load. The findings confirm that the use of HPSC in precast beam connections not only meets structural requirements but also contributes to a reduction in reinforcement length. This supports faster and potentially more costeffective construction, aligning with global needs for innovative and efficient building practices.
Co-Authors Adita Devania Devania, Adita Sasmita, Eka Mulya Sri Haryati Suripto Yanuar Setiawan