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Eko Walujodjati
Sekolah Tinggi Teknologi Garut
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Identifikasi Faktor Risiko Kecelakaan Kerja Menuju Zero Accident pada Proyek Pembangunan Jalan Tol Cisumdawu Phase II Devi, Marta Resmana; Ismail, Agus; Walujodjati, Eko
Jurnal Konstruksi Vol 16 No 2 (2018)
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Identifikasi faktor risiko digunakan untuk menggali risiko-risiko yang mungkin dapat mempengaruhi pelaksanaan proyek konstruksi. Hal ini menunjukkan bahwa keselamatan dan kesehatan kerja (K3) sangatlah penting untuk meminimalisir risiko kecelakaan dalam setiap aktifitas proyek konstruksi bangunan menuju zero accident. Tujuan dari penelitian ini adalah untuk mengetahui Identifikasi Faktor Risiko Kecelakaan Kerja Menuju Zero Accident pada Proyek Pembangunan Jalan Tol di Sumedang. Penelitian ini dilakukan menggunakan metode analisis deskriptif kualitatif. Berdasarkan hasil penelitian ini dengan menggunakan metode Brainstorming yang merupakan identifikasi awal dari semua risiko yang mungkin akan terjadi, dengan menggunakan sampel foto pada pekerjaan Box Culvert yang telah diidentifikasi peluang kecelakaan berdasarkan klasifikasi jenis kecelakaan dan akibat kecelakaan bedasarkan jenis luka yang di analisis menggunakan penilaian risiko menurut ISO 2008 yang berdasarkan Permen Pu Nomer 09 Tahun 2008. Hasil dengan tingkat frekuensi sedang yang muncul yaitu dengan kriteria 1x dalam 6 bulan. Hasil tersebut menyebutkan bahwa penyedia jasa konstruksi (kontraktor) telah meningkatkan keselamatan pada setiap pekerjaan agar mengurangi peluang risiko kecelakaan kerja yang terjadi untuk menuju zero accident.
Studi Analisa Kuat Tarik Material Baja Ringan Yang Digunakan Pada Bangunan Di Kabupaten Garut Walujodjati, Eko; Rukanda, Reno
Jurnal Konstruksi Vol 15 No 1 (2017)
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Seiring berkembangnya kemajuan zaman terutama bidang industri kontruksi di Indonesia yang tumbuh dan berkembang cukup pesat. Menuntut sebuah permintaan akan kebutuhan teknologi kontruksi yang mengharapkan suatu desain yang safety, serviceability, dan ekonomis, sekarang inipenggunaan material baja ringan sebagai kontruksi atap banyak digunakan sebagai alternatif pengganti dari material kayu maupun baja konvensional. Kenyataannya kontruksi atap dengan material ini banyak mengalami kegagalan struktur yang sebagian besar disebabkan oleh kesalahan analisis maupun kualitas bahan. Berdasarkan kegagalan yang sering terjadi, dengan menggunakan alat uji tarik (Universal Testing Machine) dari PUSKIM Cileunyi. maka perlu diteliti untuk mengetahui apakah mutu bahan baja ringan yang beredar di Garut, sesuai dengan yang disyaratkan untuk keperluan struktur yaitu G550 atau 550 Mpa. Dengan melakukan penelitian eksperimental pengujian kuat tarik di Laboratorium, untuk dapat diketahui secara pasti kuat tarik sehingga dapat ditentukan kemampuan bahan. Hasil data yang diperoleh dari pengujian kuat tarik sampel baja ringan yang berbeda merek sebanyak lima merek di wilayah Garut ialah berupa grafik dan kuat tarik material baja ringan.Untuk sampel I C, I R, II R, dan III C memiliki kuat tarik diatas standar 550 Mpa, sedangkan untuk sampel yang lain memiliki kuat tarik dibawah standar 550 Mpa.
Analisis StrukturRumah Sakit Umum Intan Husada – Garut Bagian Rawat Inap Walujodjati, Eko; Wiguna, Andreansyah
Jurnal Konstruksi Vol 15 No 1 (2017)
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

The   construction of a building must of course be planned in accordance with the needs, which the building must have the criteria of safe, comfortable, economical, beautiful and in accordance with the designation. Intan Husada Hospital Building Kab. Garut inpatient section was built to meet the needs of the community, especially District Tarogong Kidul generally Garut regency in the inpatient care service. Building RSU Intan Husada Garut built 4 floors with most use of reinforced concrete structures. Floor plates are set 25 Mpa (f'c) and 400 Mpa (fy) concrete. For structural parts in general the columns and beams are fixed with 25 Mpa concrete and 400 Mpa (fy) steel grade. For the foundation it self set by using foot plate foundation. Planning of reinforced concrete structure refers to Indonesian National Standard (SNI) SNI 03-2847-2002 on Procedure of Planning of Concrete Structure for Building Building. Structural Analysis with recognized software tools. The result of structure analysis in the form of moment, normal and shear is used to plot elements of structure. From structural analysis that is done obtained comparison of calculation result of structural analysis with attached. Column analysis results with longitudinal reinforcement 19D22 D10-180 while the longitudinal tu-straw 20D25 stirring D10-100. Beams of analysis results with longitudinal reinforcement 2D13 and 9 D22 stirring D10-200 while the longitudinal reinforcing battles 19D22 stirring D10-100. Sloof beam analysis with longitudinal reinforcement 4D22 D8-250 while mounted longitudinal 6D22 stirring D10-100.
Analisis Pondasi Tiang Pancang Theematic Mall dan Hotel Majalaya Bandung Yusup, Arip; Walujodjati, Eko
Jurnal Konstruksi Vol 17 No 2 (2019): Jurnal Konstruksi
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Salah satu pondasi dalam adalah pondasi tiang pancang, pondasi ini digunakan pada Proyek Theematic Mall dan Hotel Majalaya-Bandung. Penelitian ini bertujuan untuk menganalisis pondasi yang ada pada proyek tersebut. Analisis pembebanan yang diperhitungkan mengacu pada SNI 1727-2013. Perencanaan pembebanan mengunakan program analis struktur yang menghadirkan state of the art dalam teknologi tiga dimensi finite element method bagi struktur teknik dan untuk perhitungan pondasi mengunakan metode Begemann dan Borms dengan mengunakan data kekuatan bahan hasil uji tanah SPT dan CPT untuk tiang pancang, untuk kekuatan Pondasi pilecap mengunakan SNI-03-2847-2002. Berdasarkan dari hasil analisis dan data tanah didapatkan tahanan aksial *Pn=720,96 Kn dan tahanan lateral tiang pancang * Hn = 27,14 kn. Untuk tahanan geser tinjauan pondasi telapak/pile cap arah y Vc* = 2274,3 kn, arah x Vc* =2173,5 kn dan tinjauan dua arah Vnp= 12012 kn. Untuk perhitungan penulangan pile cap didapatkan hasil analisis yang lebih besar daripada yang dilapangan yaitu As= 18480 mm2 (analisis) dan As = 9575,89 mm2 (lapangan), dikarenakan pada hasil analisis perhitungan dilapangan didapatkan nilai tahanan aksial dan lateral lebih kecil daripada hasil analisis.
Analisis Struktur Gelagar Jembatan Steel Box Girder Tipe Komposit Baja-Beton: Studi Kasus : Jembatan Fly Over Jalan Alternatif Kadungora-Leles Walujodjati, Eko; Sauri Al Qurthubi, Sopyan
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1331

Abstract

The Kadungora-Leles alternative road fly over bridge is the first bridge in Garut Regency to use steel box girders as its girders. Therefore, the author is interested in conducting an analysis of the steel box girder structure on this bridge. The method used in the analysis of this bridge girder structure is the Allowable Stress Design method. This analysis assumes that the stress that occurs due to the service load, which is calculated based on the elastic theory of bending beams, does not exceed the specified allowable stress. Permissible stress is determined as the ultimate strength or yield strength of steel divided by the safety factor. Bridge loading refers to SNI 1725:2016, while for analysis of bolted connections using RSNI T-03-2005. From the analysis results, it was found that the steel box girder bridge girder structure experienced a tensile stress of 1801.41 kg/cm2, experienced a deflection of 101.991 mm. After analyzing the girder connections, it was found that the bottom flange connection plate has a shear-yield capacity of 9135000 N, the web connection plate has a shear-yield capacity of 9020160 N. The bottom flange connection plate has a total of 72 bolts (24 mm) , whereas according to the analysis results only 31 bolts are needed. The bolt configuration on the web connection plate has a shear capacity of 11928.992 kN, while the shear force that must be supported is 421.933 Kn.
Perbandingan Pushover dan Pengujian Siklik pada Coupling Beam dan Link Geser dalam Struktur Baja Rachma, Intan Nuriskha; Walujodjati, Eko
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1333

Abstract

The concept of earthquake resistant buildings is based on the yield mechanism in one element. In the steel frame structure core system, the coupling beam functions as an earthquake energy dissipation element where yielding is planned. However, if these elements are damaged, repair costs will be high and the process will disrupt building activities. Considering these conditions, the coupling beam element was developed by adding a sliding link. The yield mechanism is transferred to the link element while the coupling beam remains elastic. Numerical and experimental studies were carried out to review the yielding behavior that occurs in the link and coupling beam elements. The sub-assembly consisting of the column, coupling beam and shear link WF150x75x6x8 was tested under cyclic loading in accordance with AISC 341-10. Numerical analysis is carried out using a pushover method where parameters related to the non-linear properties of each sub-assembly are designed based on the provisions of FEMA-356. The pushover and experimental analysis results show that yielding can be maintained in the link. Cyclic testing on the Sub-assembly produces plastic rotation of the shear link of 0.17 radians without causing damage to the column and coupling beam. The first yield in the pushover analysis occurred at a force of 180.9 kN, while the experimental results occurred at a loading of 157.04 kN. Cyclic testing shows an increase in shear capacity of 7% from the results of the pushover analysis.
Evaluasi Perilaku Struktur Gedung Beton Bertulang dengan Metode Elemen Hingga Proyek Pembangunan Banten Islamic Center Pratama, Rama; Walujodjati, Eko
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1357

Abstract

One type of construction is building construction, an important infrastructure in human life and widely used throughout the world. Building construction can be used for various activities, such as residences, offices, shopping centers, and the like. Therefore, technology that can help make building plans easier and more connected is needed, namely calculating the analysis of the building structure using the finite element method (Finite.Element.Method). The evaluation calculation also refers to SNI`1726,1727, and 2847:2019. The load calculation includes wind, earthquake, dead and live loads. The upper and lower structures are the structural components that are analyzed. The results of the evaluation calculation show that the concrete structure is able to withstand the given loads, seen from the 600 x 600 dimension column where the moment acting on the column is 171 kNm while the moment that the column can withstand is 496.7 kNm with a ratio of 0.346 , so it can be said that the structure is very safe, but in terms of efficiency the material used in the column can be said to be wasteful.
Pengaruh Bahan Tambah Superplasticizer pada Beton Porous Terhadap Kuat Tekan, Tarik Belah dan Permeabilitas Andriansyah, Danil; Walujodjati, Eko
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1386

Abstract

Porous concrete is an innovation in sustainable concrete technology without fine aggregate with high porosity. This porous concrete can be used on road pavement to overcome water run-off, and can also be applied as a retaining wall which functions to minimize ground water pressure. This research intends to examine experimentally the mechanical properties of compressive strength, tensile strength and permeability of porous concrete with various variations in cement water factors. The coarse aggregate used for Cilopang crushed stone is sized 19 mm, 12.5 mm, 9.5 mm and uses added supperlasticizer. The sample used for testing compressive strength and split tensile strength was in the form of a cylinder measuring 15 x 30 cm. Based on the test results according to ACI 522R-10, the test results for porous concrete show that normal porous concrete using supperplasticizer additives has experienced changes in the value of compressive strength and splitting tensile strength compared to normal concrete.
Pengujian Kuat Lentur dan Permeabilitas Terhadap Beton Porous dengan Agregat Kasar Cilopang Ghilman, Rafiqan Mochammad; Walujodjati, Eko
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1387

Abstract

Concrete is a construction material that is currently very commonly used. One of the innovations made is porous concrete or non-sand concrete, which is a simple form of lightweight concrete made by removing fine aggregate. This porous concrete can be used on road pavement to prevent water run-off. This research aims to experimentally examine the mechanical properties of the flexural strength and permeability of porous concrete with various variations in the cement water factor. The coarse aggregate used for Cilopang crushed stone measures 19 mm, 12 mm, 9 mm, for the average load for each sample 19 mm 5.3, 12 mm sample 7.3 and 9 mm sample 8.6. The test specimens used for each variant were 9 concrete block specimens measuring 10 x 15 x 60 cm with different aggregates. Permeability of porous concrete with different coarse aggregate sizes, sizes 19 mm, 12 mm and 9 mm. From these results the speed of absorption is 00 : 12.31 mm/sec for aggregate size 19, 00 : 15.90 mm/sec for aggregate 12, 00 : 24.01 mm/sec for aggregate. Has met the requirements based on (NRMCA, 2011) and (ACI 522R-10).
Evaluasi Struktur Beton Bertulang Dengan Sistem Rangka Pemikul Momen Khusus Pada Gedung KORPRI Kab. Garut Abdul Chalid, Nugi; Walujodjati, Eko
Jurnal Konstruksi Vol 22 No 1 (2024): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.22-1.1504

Abstract

To withstand earthquake forces in earthquake-prone areas, especially in seismic design categories 4,5,6 according to SNI 1726:2019, there is a calculation called the Special Moment Resisting Framing System (SRPMK). This research aims to understand the concept of earthquake-resistant buildings, plan reinforced concrete structures according to SRPMK principles, and determine the fulfillment of the Strong Column Weak Beam rule where columns are designed to be stronger than beams. The case study was carried out at the Garut Regency KORPRI building using the Garut Regency spectrum response. This building functions as the secretariat for the district KORPRI management board, as well as providing general administration services. The analysis is carried out by knowing the response spectrum, modeling, entering loads, and load combinations. The results of this research show that to fulfill the Special Moment Resisting Frame System in the KORPRI Garut Regency building, beams with dimensions of 350 x 500 mm and column dimensions of 400 x 400 mm are required and reinforcement is installed by the SRPMK provisions contained in SNI 2847:2019. This calculation also includes compliance with the Strong Column Weak Beam rule, this is related to the calculation of compliance with the SCWB formula in SNI 2847:2019
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Chalid, Nugi Andriansyah, Danil Aprilianti, Mega Devi, Marta Resmana Fahmi, Muhammad Zaki Fathir, Mirza Ghilman, Rafiqan Mochammad Intan Nuriskha Rachma Kristalia, Risa Marsalina, Sali Maulidan, Ripan Nurliana, Ade Linda Pratama, Rama Reno Rukanda, Reno Sauri Al Qurthubi, Sopyan Sulwan Permana Wiguna, Andreansyah Yusup, Arip