Garuda - Garba Rujukan Digital

Evaluasi Kelayakan Struktur Gedung Tinggi Yang Terbengkalai Selama 15 Tahun Terhadap Gempa Berdasarkan SNI 1726 â€“ 2012 Refani, Afif Navir; Darmawan, Muhammad Sigit; Irmawan, Mudji
IPTEK Journal of Proceedings Series No 2 (2018): The 2nd Conference on Innovation and Industrial Applications (CINIA 2016)
Publisher : Institut Teknologi Sepuluh Nopember

Gedung tinggi di Indonesia khususnya di Surabaya sudah dimulai pembangunannya sejak tahun 90an. Namun dikarenakan terjadi krisis moneter pada tahun 1998 membuat beberapa gedung tinggi di Surabaya menjadi terbengkalai penyelesaiannya. Salah satunya adalah Gedung Apartemen Crystal Garden di Jl. Embong Malang Surabaya yang memiliki 26 lantai. Dan saat ini gedung tersebut akan dimanfaatkan kembali sebagai hunian dan pusat perbelanjaan. Untuk dapat merealisasikan rencana pemanfaatan kembali suatu gedung tinggi, maka diperlukan suatu evaluasi kelayakan pada gedung tersebut terhadap gempa berdasarkan peraturan SNI 1726 2012. Dalam menentukan kelayakan suatu bangunan ditentukan dari parameter kualitas material gedung saat ini dan dari parameter respons struktur terhadap beban gempa. Untuk mengukur kualitas material dibutuhkan serangkaian pengujian struktur beton bertulang. Hasil yang diharapkan adalah dapat diketahui kelayakan bangunan dari segi kualitas material beton bertulang dan dari segi respons struktur gedung terhadap gempa yang akan dibandingkan dengan peraturan terkait yang berlaku di Indonesia

Modifikasi Perencanaan Struktur Gedung Ibis Styles Hotel Tanah Abang Jakarta Pusat Dengan Metode Beton Pracetak Kusuma Indra Klana; Mudji Irmawan; Endah Wahyuni
Jurnal Teknik ITS Vol 6, No 2 (2017)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Sistem pracetak adalah suatu proses produksi suatu elemen struktur bangunan yang dicetak di pabrikasi dimana tempat elemen struktur tersebut akan digunakan satu kesatuan dalam sebuah bangunan di tempat berbeda. Sistem ini memiliki keunggulan berupa mutu yang dapat dipantau, lebih presisi, serta pengerjaannya tidak terpengaruh cuaca karena dipabrikasi dalam pabrik. Tak hanya itu, bentuk struktur gedung yang tipikal juga menjadi keunggulan untuk penggunaan sistem pracetak ini. Agar dapat ditransportasikan, maka perlu diperhatikan kebutuhan tulangan saat pengangkatan. Dan juga agar elemen pracetak dapat terintegrasi dengan baik, maka sambungan haruslah dibuat semonolit mungkin. Sambungan yang tahan terhadap gempa (seismic resistant) dapat menggunakan sambungan basah pada balok dan kolom pracetak dapat menggantikan sambungan monolit biasa [6] sedangkan grouted steel sleeves cocok digunakan untuk sambungan kolom – kolom pada bangunan yang berada di zona gempa [7].cDari hasil analisa yang dilakukan, elemen-elemen pracetak sesuai ketentuan SNI 2847:2013[5]. Kolom digunakan dimensi 80 x 80 cm, balok induk 50/75 cm, dan tebal plat 12 cm dengan overtopping 5 cm. Dengan mempertimbangkan metode agar mudah dikerjakan maka digunakan sambungan dengan campuran antar sambungan mekanik dan basah. Pada sambungan mekanik menggunakan bantuan NMB Splice Sleeve dan BECO Beam shoe yang termasuk mechanical splices tipe 2 menurut peraturan ACI 318-11[1].

PHYSICAL AND MECHANICAL PROPERTIES LIGHTWEIGHT CONCRETE AND THE USE STYROFOAM SILICA SAND Kurdian Suprapto; Mudji Irmawan; Fauzi Rahman
Journal of Civil Engineering Vol 31, No 1 (2011)
Publisher : Institut Teknologi Sepuluh Nopember

The research is motivated rationale for reuse styrofoam waste (wrappers monitor) that is widely available on the ground that this cannot be destroyed or recycled. Utilization of waste is intended to not pollute the environment and can even be commercially valuable. In addition, this study is an attempt to find alternative materials replacement bricks. One of them is by using a mixture of portland cement, silica sand and styrofoam for the manufacture of non-structural lightweight concrete. Silica sand crushed into powder 22.44% retained on sieve no. 325 and styrofoam used in the form of small granules which pass 9.5 mm sieve. This study begins with a test mortar with silica sand content of 0%, 30%, 40%, 50% by weight of cement + silica sand. Then one of the mortar mixture composition is taken to be combined with Styrofoam to test concrete with styrofoam levels of 3%, 3.5%, 4% by weight of cement + silica sand. From the results of testing mortars, the composition of the mixture is taken as 40% silica sand and cement 60%. In testing the concrete, the greater the level of styrofoam, the smaller the volume weight, compressive strength, tensile strength and flexural strength concrete. The composition of concrete mixtures with styrofoam levels 3.5% and 4% which can be categorized as non-structural lightweight concrete material to be used as wall panels / insulation.

DUCTILITY EVALUATION OF REINFORCED CONCRETE COLUMN MADE OF NORMAL- TO HIGH-STRENGTH CONCRETE UNDER CONSTANT AXIAL LOAD LEVEL COMBINED WITH FLEXURAL LOADING USING NONLINEAR SECTIONAL FIBER BASED MODEL Bambang Piscesa; Dwi Prasetya; Mudji Irmawan; Harun Alrasyid
Journal of Civil Engineering Vol 34, No 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

This study presents the ductility evaluation of reinforced concrete column made of normal-strength material using various empirical stress-strain model with nonlinear sectional fiber based analysis. The purpose is to evaluate the confinement requirement for reinforced concrete column under high axial load level. The concrete strength considered in the analysis are varies from 30 to 70 MPa while the steel reinforcing bar yield strength considered is only 400 MPa. The ductility is evaluated by using the customized ductility index measurement. The ratio of the concrete cover to the concrete core is set to 0.1 but not more than 40 mm. Attard and Setunge’s concrete constitutive model is used in this investigation. Cover spalling behavior is considered in the analysis by including the restrained shrinkage effect on the concrete strength and the softening behavior. From this study, it was found that extra confinement is necessary to maintain the expected minimum level of ductility.

Strength reduction factor evaluation of the circular reinforced concrete column with varying eccentricity ratio (e/h) Wahyuniarsih Sutrisno; Mudji Irmawan; Dwi Prasetya
Journal of Civil Engineering Vol 35, No 1 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v35i1.7788

This paper presents strength reduction factor evaluation of circular reinforced concrete column with varying eccentricity ratio (e/h) using the first-order-reliability-methods. The resistance properties of the reinforced concrete column is estimated using the monte-carlo simulation with random normally distributed material properties. Only dead and live load combination considered in the analysis. The parameters being investigated when evaluating the resistance of the reinforced concrete column are the concrete compressive strength, steel yield strength, coefficient of variation for both the concrete and steel materials, reinforced concrete column size, and the longitudinal reinforcement ratio. When evaluating the strength-reduction factor, the safety index values are 3.0, 3.5, and 4.0. From the analysis, it was found out that the strength reduction factor, for e/h higher than one and with safety index equal to 3.0, was equal to 0.9 which agrees well with the ACI 318 strength reduction factor for tension-controlled region. However, for e/h lower than one and safety index equal to 3.0, the strength reduction factor was equal to 0.6 which was lower than the ACI 318 strength reduction factor for compression-compression controlled region.

Modification of Reinforced Concrete Retaining Wall at Pilangbango Reservoir Construction Project Madiun, East Java Mudji Irmawan; Yerry Kahaditu Firmansyah; Afif Navir Refani
IPTEK Journal of Proceedings Series No 1 (2017): The 2nd International Conference on Civil Engineering Research (ICCER) 2016
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i1.2205

The reservoir is the tendon of water in order to accommodate the excess rain water in the rainy season and its utilization in the dry season for various purposes, both in the field of agriculture as well as the interests of the community. To find out the cause of the crack wall of the reservoir Pilangbango Madiun, East Java, then do the test strongly press on concrete walls and soil investigations on the area of the reservoir. Spunpile 400 mm in diameter used by the mounting distance 200 cm and a depth of 12 m and pole mounted on the heels of concrete walls. Manual calculation of the results and analysis of the Finite Element program it can be concluded that in the presence of an additional retaining her 400 spunpile mm using a distance 200 cm and a depth of 12 m, retaining wall construction is then quite able to hold style pillow case and Sliding with style has a safety factor more than 1.5. So the movement of the sliding walls do not happen again.

Evaluation on green concept of high-rise building design and its architectural feasibility Johanes Krisdianto; FX Teddy Badai Samodra; Mudji Irmawan
IPTEK Journal of Proceedings Series No 3 (2017): 8th International Conference on Architecture Research and Design 2016
Publisher : Institut Teknologi Sepuluh Nopember

Recently, the feasibility study on occupancy, building design and its operation are critical issues in building certification. This study evaluates green concept of a high-rise building, Grand Darmo Suite Hotel Surabaya-an awarded on green building as case study, to the architectural feasibility. The modeling using Ecotect Analysis and CFD Fluent program combined with field observation were also conducted to evaluate the building performance. Based on building simulation and the walkthrough survey and audit, the results show that the building has architectural aspect and advantage, it remains in consistent way between the initial planning and the development. In general, the green concept is implemented in organization of space and its use where they are in accordance with the functions and appropriate to building permit. Furthermore, the condition and quality of the finishing material do not interfere the comfort of occupancy.

APPLICATION OF DIGITAL IMAGE CORRELATION TO CAPTURE THE CRACK MOUTH OPENING DISPLACEMENT OF THE NOTCHED STEEL FIBER REINFORCED CONCRETE (SFRC) BEAM Mudji Irmawan; Bambang Piscesa; Priyo Suprobo; Harun Al Rasyid
Journal of Civil Engineering Vol 37, No 2 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v37i2.14046

The application of digital image correlation (DIC) to capture any point in the experimental test is found to be promising. Using the DIC and appropriate tool can overcome the limitation of the traditional sensors to capture the movement or displacement in the tested specimen. In this study, an open-source DIC called Digital Image Correlation Engine (DICE) is used to capture the crack mouth opening displacement (CMOD) of the notched steel fiber reinforced concrete (SFRC) beam with points tracking method. There are three beam specimens with different sizes and similar aspect ratios reported in this paper. All beams have 0.5% steel fiber volumetric content. The SFRC beams are marked with points and tested under a three-point bending flexural test. Custom firmware for Canon DSLR 650D digital camera called Magic Lantern is used to capture the pictures per one second. DICE software is used to analyze the point movements and dumped the output file. ParaView 5.9.0 is then used to visualize the data. A method to calibrate the point coordinate with actual measurement is proposed. A small script is written in Visual Basic Application (VBA) in Microsoft Excel to correlate the displacement for each point of interest with the recorded applied load. With the developed script, any point of interest tracked with DICE can be related to the recorded data from the data logger. From this study, the obtained CMOD with the corresponding applied load is presented, which can be used to investigate the flexural fracture energy of the SFRC beam.

Title

Found 8 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 8 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 8 Documents
Search