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Andi Indianto
Poilteknik Negeri Jakarta
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Journal : Construction and Material Journal

 1 
EVALUASI KINERJA STRUKTUR JEMBATAN TYPE VOIDED SLAB Andi Indianto; Asep Hilmansyah
Construction and Material Journal Vol. 1 No. 2 (2019): Construction and Material Journal Vol. 1 No. 2 Juli 2019
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v1i2.1478

Abstract

Makalah ini memaparkan hasil penelitian kinerja struktur jembatan tipe voided slab. Penelitian ini dilakukan oleh adanya masalah terkelupasnya lapisan permukaan dan terbentuknya alur memanjang di permukaan lantai jembatan tipe voided slab. Tujuannya untuk mengevaluasi kinerja standar jembatan tipe pre-tensioned precast concrete voided slab bentang 16 m, dengan tinjauan beban sesuai SNI 1725:2016 dan beban aktual. Dalam evaluasi ini dilakukan uji lendutan terhadap struktur jembatan voided slab ,untuk mengetahui lendutan yang terjadi pada struktur yang elemennya menyatu dan yang terpisah. Pendekatan teoritis dilakukan untuk mengetahui kinerja struktur terhadap beban aktual dan beban standar sesuai dengan SNI.1725:2016. Hasil uji menunjukkan bahwa jembatan voided slab yang lapisan permukaan lantainya terbentuk alur memanjang, terindikasi antar elemennya tidak menyatu, perbedaan lendutan antar elemen sebesar 8,9 mm, dan terdiskripsi tidak layak. Bagian lapisan permukaan lantai jembatan yang tidak terbentuk alur memanjang, terindikasi antar elemen masih menyatu, perbedaan lendutannya sebesar 0,76 mm, dan terdiskripsi layak. Hasil uji di lapangan juga menunjukkan bahwa bagian elemen voided slab yang tidak menyatu, terindikasi tidak layan menerima beban aktual, dengan lendutan sebesar 13,34 mm, lebih besar dari lendutan izin sebesar 7 mm, dan bagian elemen voided slab yang menyatu, terindikasi layan menerima beban aktual, dengan lendutan sebesar 5,79 mm, lebih kecil dari lendutan izin sebesar 7 mm. Hasil analisa teoritis menunjukkan bahwa struktur voided slab yang elemennya tidak menyatu, tidak layan menerima beban standar, dan struktur yang antar elemennya menyatu, dalam kondisi layan menerima beban standar. Kesimpulan pada evaluasi ini adalah struktur voided slab dapat berkinerja baik (layak dan layan) jika antar elemennya menyatu. Agar tetap menyatu, disarankan untuk dilakukan perubahan tipe ikatan antar elemen voided slab yang dapat memberikan jaminan ikatan selama umur rencana jembatan.Kata kunci: Voided slab, menyatu, layak, layan.
EVALUASI KAPASITAS STRUKTUR BAWAH JEMBATAN INTEGRAL Miftah Hadibrata M.; Andi Indianto
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4759

Abstract

The construction of integral bridge Overpass Cilenggang 1 on the Serpong – Balaraja Section 1A Toll Road Construction Project was built on soft soil. This evaluation aims to analyze the strength of the integral bridge substructure and justify the strengthening of the substructure if it is not strong enough to withstand the load in accordance with SNI 1725:2016. The evaluation substructure of the integral bridge capacity used SAP2000 software with the load accordance to SNI 1725:2016 for bridge loading. The result of the research show that the capacity of the integral bridge Overpass Cilenggang 1 structure is strong enough to withstand the working load because the reinforcement capacity used for the substructure is stronger than the reinforcement from the result of analysis with SAP2000 software. Based on the result of the research, it can be concluded that the reinforcement used for Overpass Cilenggang 1 substructure is strong enough to withstand the load working on structure and there is no need to justify the reinforcement for the integral bridge substructure. Keywords: Evaluation, Integral Bridge, Load, Reinforcement, Substructure.
EVALUASI KAPASITAS STRUKTUR EKSISTING LANTAI JEMBATAN PADA JEMBATAN TYPE PILE SLAB DI RUAS JALAN TOL JORR W1 KEBON JERUK Fianda Harsa; Andi Indianto; Erlina Yanuarini
Construction and Material Journal Vol. 5 No. 1 (2023): Construction and Material Journal Vol. 5 No. 1 Maret 2023
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v5i1.4748

Abstract

This research a study transverse cracking that occurred on the floor structure of the pile slab type bridge located at JORR W1 Kebon Jeruk toll road. The purpose of this study was to evaluate the capacity of the bridge floor structure that had damaged by cracks and weather its remains are in a safe condition or not. The research method is carried out by analyzing the calculation of loading that occurred in an actual condition that had cracked by modeling on structural analysis program with standard SNI 1725:2016 and actual loads that acted on the structure, then evaluating the moment capacity of the structure based on installed reinforcement and evaluating deflection from inspection results based permissible deflection. From the results of the analysis, it was found that the structure experienced a moment failure due to the actual load with a load magnitude of 18,07 tons, the moment due to the actual load on the negative moment region was 34,47 tons.m and the positive moment region was 37,46 tons.m, compared to the moment capacity of structure successively which was 25,52 tons.m and 29,16 tons.m. However, for the results of the analysis of the standard load of 11,25 tons, the moment capacity of the structure was able to withstand the ultimate moment due to the reactor load successively being 22,82 tons.m and 24,37 tons.m, whereas for the deflection test results of 0,46 mm remained in a safe condition without exceeding the L/800 permit deflection of 4,76 mm. Based on the results of the analysis, it can be concluded that the structure is overloaded and in the future, the structural ability must be improved and it is necessary to strengthen the bridge floor structure to be able to increase the capacity of the structure so that it can withstand the working load.
REDESAIN PILAR JEMBATAN AKIBAT POSISI PILE CAP YANG TIDAK MEMENUHI PERSYARATAN Indianto, Andi; Rizal, Shafaa Yosvi Rahmathullah
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6059

Abstract

This research aims to find effective design alternatives for bridge pillars whose position must be shifted away from the existing gas pipe, which was originally 2m to more than 3m. This pillar shift is intended so that the position of the pile cap pillar meets the requirements set by the Minister of Mining and Energy number 300.k/38/m.pe/1997 regarding work safety in oil and gas distribution pipes. To get an effective design, several forms of pillar design were carried out without having to change the span of the bridge's upper structure. An effective design form is tipe 1 (pile cap tipe) bridge pillars rather than tipe 2 (single column), because tipe 1 pillars have an implementation time of 42 days while tipe 2 is 94 days, so the implementation of tipe 1 pillars is 52 days faster than the pillars. tipe 2. The results of the structural analysis, tipe 1 pillar (pile cap tipe) obtained pile cap reinforcement which functions as a pier head of D32-80 in the transverse direction and D32-150 in the longitudinal direction, with a foundation that directly functions as a pillar using concrete spun pile D800mm as many as 60 pieces which are stuck into the ground to a depth of 24 m.
EVALUASI STRUKTUR PIER HEAD YANG MENGALAMI PERUBAHAN BENTANG Salsabilla, Nazya Tiara; Indianto, Andi; Yanuarini, Erlina
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.4767

Abstract

Cracking was observed on pier head P85-84 S of the JORR W1 Kebon Jeruk toll road, caused by an increase in span length and loading conditions that exceeded the original design specifications. This resulted in bending moments greater than those accounted for in the initial design, prompting the need for a structural capacity evaluation of the pier head. This study aims to assess whether pier head P85-84 S remains capable of withstanding the applied loads. The evaluation was conducted by analyzing the required reinforcement area, cross-sectional dimensions, and nominal moment capacity in comparison to the ultimate moment, using SAP2000 software. The analysis revealed that the pier head's capacity is inadequate. Under standard loading conditions, deficiencies of 1D19 and 5D19 were found in the bottom support and mid-span reinforcement, respectively. Under actual loading conditions, the reinforcement deficiencies increased to 2D19 at the bottom support and 8D19 at mid-span. Additionally, the comparison between the nominal and ultimate moment showed that the ultimate moment caused by the applied loads reached 71.12 ton·m, while the nominal moment was only 44.01 ton·m. These findings indicate that the current structure is insufficient to resist the existing loads. Therefore, structural strengthening is required, which may include the use of Fiber Reinforced Polymer (FRP), steel plate bonding, or external prestressing.
Co-Authors Albert Hendrik Benaya Aprilia Rossa Ariesta Asep Hilmansyah Fachri Pangestu Fianda Harsa Hendrian Budi Bagus Kuncoro Hendrian Budi Bagus Kuncoro Iwan Supriyadi Miftah Hadibrata M. Mohammad, Adi Mukhlisya Dewi Ratna Putri Putra, Muhammad Andika Pratama Rizal, Rikki Sofyan Rizal, Shafaa Yosvi Rahmathullah Rosyada, Ananda Sabiila Ryan Anggriawan Ryan Anggriawan Salsabilla, Nazya Tiara Setiyadi Setiyadi Setiyadi Setiyadi Sukarman Sukarman Sukarman Tri Wulan Sari Yanuarini, Erlina