Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

3.259

P-Index

This Author published in this journals

All Journal Buletin Udayana Mengabdi Jurnal Spektran Jurnal Teknik Sipil Jurnal Teknik Sipil Jurnal Ilmiah Hospitality Management Japam Suluh Pendidikan: Jurnal Ilmu-ilmu Pendidikan Jurnal Penjaminan Mutu Pangkaja: Jurnal Agama Hindu IPSSJ

I Ketut Sudarsana

Program Studi Teknik Sipil Fakultas Teknik Universitas Udayana

Author-ID : 2683902

Religion Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Public Health Social Sciences Transportation Other

Published : 44 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

ANALISIS PERILAKU HUBUNGAN PELAT-KOLOM TEPI STRUKTUR PELAT DATAR MENGGUNAKAN CONCRETE DAMAGE PLASTICITY (CDP) DALAM ABAQUS I Ketut Sudarsana; I Gede Gegiranang Wiryadi; I Gede Adi Susila
JURNAL SPEKTRAN Vol 5 No 2 (2017): Vol. 5, No. 2, Juli 2017
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (875.439 KB)

This research was done to investigate the behavior of edge slab-column connection of flat plate structure using the CDP features of ABAQUS software. Experimental specimen obtained in the literature was modelled in ABAQUS software with CDP features to define the concrete inelastic behavior. The investigated slab-column connection is an edge slab-column subassembled connection having slab dimension of 1020 mm x 1540mm, slab thickness of 120 mm, column dimension of 250 mm x 250mm and column height of 1520 mm. The vertical load and unbalanced moment were applied through the column ends. The vertical load works in the direction perpendicular to slab surface, and the unbalanced moment perpendicular to slab free edge that is obtained from a couple of horizontal forces acting in opposite direction. As many as 22 models were analyzed for five variations on CDP parameters and mesh size. The parametric values of the CDP were varied to obtained the analysis results predict well the experimental results. The analysis shows that the parametric values of CDP such as viscosity (µ) of 0,00005, dilatation angle (?) of 40°, using tension strain to define tension behavior of concrete, and considering damage parameter due to compression and tension give the analysis results of the behavior of edge slab-column connections close to experimental result. Key words: edge slab-column connections, unbalanced moment, punching shear, abaqus, concrete damage plasticity

PERILAKU GESER BALOK TINGGI BETON SERAT BAGU TANPA TULANGAN TRANSVERSAL I Ketut Sudarsana; Ida Bagus Rai Widiarsa; Marselinus Anggur Ngganggus
JURNAL SPEKTRAN Vol 8 No 1 (2020): VOL. 8, NO. 1, JANUARI 2020
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (730.214 KB)

Mekanisme geser pada balok tinggi penting untuk diperhatikan karena keruntuhan geser bersifat getas (brittle). Gaya geser umumnya kombinasi dengan lentur, torsi, atau gaya normal. Untuk mengatasi keruntuhan yang getas (brittle), perlu untuk meningkatkan persentase tulangan horizontal dan vertikal atau menggantinya dengan beton bertulangan serat (FRC). Serat Bagu merupakan serat alami yang kuat dan awet, serat Bagu banyak ditemukan dipasaran daerah Bali karena merupakan bahan yang dibutuhkan secara berkelanjutan setiap tahun pada saat perayaan Nyepi dengan harga yang terjangkau . Penelitian ini bertujuan untuk mengevaluasi prilaku geser balok tinggi beton serat Bagu dengan variasi volume serat bagu 0%, 0,25%, 0,5%, 0,75% dan 1% terhadap berat semen yang meliputi perilaku pola retak, beban retak, kekakuan dan daktilitas balok tinggi. Penelitian ini juga membandingkan tingkat keakuratan prediksi geser dari SNI. 2847-2013 dan Strut and Tie Model (STM) untuk memprediksi kapasitas geser balok tinggi beton serat Bagu. Sebanyak 10 buah balok tinggi dengan ukuran 150x450x1500mm dibuat dan diuji diatas perletakan sederhana dengan dua buah beban terpusat pada jarak 370mm dari tumpuan. Balok dengan tulangan longitudinal tunggal 2D16mm. Hasil penelitian menunjukan bahwa penambahan 0,75 % serat Bagu menurunkan prosentase jumlah retak lentur sebesar 75 %, peningkatan beban retak lentur pertama sebesar 341,67%, beban retak geser pertama sebesar 170 % dan daktailitas balok sebesar 6,92% pada kondisi sebelum retak pertama dan 0,26% pada kondisi setelah retak pertama. Prediksi kapasitas geser balok tinggi beton serat Bagu tanpa tulangan transversal dengan metode STM lebih baik dari SNI dengan nilai rata-rata rasio Vexp/VSTM atau Vexp/SNI masing-masing sebesar 1.16 untuk teori STM dan 2,47 untuk teori SNI.

ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI WAKTU TUNGGU PENGADAAN MATERIAL KONSTRUKSI PADA PROYEK GEDUNG DI KABUPATEN BADUNG Putera Kumarayasa Mudita; I K. Sudarsana; Mayun Nadiasa
JURNAL SPEKTRAN Vol 4 No 2 (2016): Vol. 4, No. 2, Juli 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Abstract :When undertaking construction projects, the smoothflow of materials to the project site must be maintained.Waiting for material, which frequently happens, will have a big impact, especially for large-scale projects that use a lot of labor. If the arrival of the materials is not in accordance with the schedule of material procurement planning, the workers will have nothing to do and the project cost will blow out and there will be delays in project completion time. This research investigates the factors which influence the lead time of construction material procurement in the Badung Regency. Data was obtained by distributing a questionnaire to 50 respondents. A research sample was obtained by purposive sampling aimed at the experts who work on building projects in the Badung regency. Before being used as a research instrument, the questionnaire was tested for the validity of data by using the Pearson Product-Moment correlation and its reliability was tested using the Cronbach alpha method. Processing and data analysis was conducted by Factor Analysis. The research results show there are twenty four variables identified that influence the lead time of construction material procurement on building projects in the Badung regency. All variables can be grouped into seven factors (Factor I, II, III, IV, V, VI, VII). The most dominant factor reviewed based on the percent of variance is Factor I which is formed by six variables being the material production process at the suppliers, the relationships between contractors and suppliers, a lack of material stock at the suppliers, the availability of material transportation, access to the project, and extreme topography.

PENGARUH MODIFIKASI KOLOM PERSEGI MENJADI BULAT MENGGUNAKAN METODE CONCRETE JACKETING DENGAN KAWAT KASA ATAU FIBERGLASS TERHADAP KAPASITAS AKSIAL KOLOM Ida Bagus Rai Widiarsa; I Ketut Sudarsana; David Pramono
JURNAL SPEKTRAN Vol 8 No 1 (2020): VOL. 8, NO. 1, JANUARI 2020
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (727.909 KB)

Kegagalan pada kolom dapat menyebabkan keruntuhan suatu struktur bangunan. Salah satu cara meningkatkan kemampuan kolom menahan beban adalah dengan perkuatan. Material beton, kawat kasa, dan fiberglass merupakan material yang mudah dikerjakan dan tersedia dipasaran. Penelitian ini dibuat untuk mengetahui pengaruh modifikasi bentuk penampang kolom beton persegi menjadi bulat dengan tambahan kekangan kawat kasa atau fiberglass terhadap kapasitas aksial kolom. Pada penelitian ini dibuat 18 buah benda uji kolom yang dibagi menjadi 6 kelompok. Benda uji berukuran 76 mm x 76 mm x 300 mm yang terbuat dari beton polos disebut KP. Kolom KP diperkuat dengan concrete jacketing menjadi berdiameter 150 mm dengan tinggi 300 mm disebut kolom KB. Selanjutnya kolom KBT merupakan kolom KB yang diberikan tambahan perlakuan treatment sandblasting pada permukaan core kolomnya. Kelompok lainnya adalah kolom KK yang merupakan kolom KBT dengan tambahan 3 lapis kawat kasa sebagai pengekang internal pada jacketing. Kolom KF merupakan kolom KBT dengan tambahan 3 lapis fiberglass yang dilapisi resin sebagai pengekang internal pada jacketing. Kelompok keenam merupakan kolom KF dengan tambahan pin dari serat fiberglass terpasang kearah luar jacketing. Hasil penelitian menunjukkan terjadi peningkatan kapasitas kolom akibat perlakuan sandblasting sebesar 10%. Penggunaan kawat kasa atau fiberglass sebagai pengekang memberikan peningkatan kapasitas pada kolom KK, KF, KFP masing-masing sebesar 21%, 29% dan 30%. Keruntuhan kolom pada kolom KP, KB, KBT, KF dan KFP adalah non-daktail sedangkan kolom KK menghasilkan perilaku keruntuhan yang lebih daktail dibandingkan dengan benda uji kolom lainnya.

MANAJEMEN RISIKO PADA PROYEK KONSTRUKSI DENGAN METODE FAST TRACK STUDI KASUS PROYEK QUNCI VILLAS DAN PUTRI NAGA KOMODO I Gusti Ketut Wirawan; I K. Sudarsana; , IBN. Purbawijaya
JURNAL SPEKTRAN Vol. 3, No. 2, Juli 2015
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

The rapid economic development such as now day, it need a construction method that may provide a facility faster and less cost. Therefore, fast track method has been widely applied in project management as happened in Qunci Villas Project at Lombok and Putri Naga Komodo Project at Loh Liang of Komodo Island. Fast track construction method has potential risks that can interfere the success of the project. This study aims to identify the risks, especially the mayor risk, to formulate the mitigation action, and to determine the risk ownership. This study was conducted using qualitative descriptive method by identifying the risks arising during the implementation of the fast track method on Qunci Villas and Putri Naga Komodo Projects through the study of literature, brainstorming, interview using questionnaires to those who knew or were involved in the project. So the frequency and magnitude of the consequences of each risk can be known. Then the risk assessment can be conducted to determine the mayor risk and the minor risk. Then determining mitigation action for the mayor risk to reduce the negative impact that may arise. Then allocating the risk ownership in other to the mitigation action can be handled properly. The risk identified totaled 25 risks consisting of : 1 risk (4%) which was medium risk rating, 6 risks (24%) which were high risk rating, and 18 risks (72%) which were extreme risk rating. The mayor risk amounted to 24 risks (96%). The mayor risk which were high risk rating consisting of : 1 planning risk, 3 technical risks, 1 project risk and 1 criminal risk. While mayor risk which were extreme risk rating consisting of : 5 technical risks, 10 project risks, 2 financial risks, and 1 human risk. Mitigation action were handled by reducing likelihood and consequence. The most risks ownership were allocated to the contractor.

ANALISIS SIKAP DAN PERILAKU KONSUMEN TERHADAP PEMILIHAN RUMAH TINGGAL PADA KAWASAN SUNSET GARDEN DI KOTA DENPASAR, BALI I K. Ade Siswanta; I K. Sudarsana; I Gst. Ketut Sudipta
JURNAL SPEKTRAN vol 2, No 1, Januari 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

The research is motivated by the more selective consumers in choosing a house which impact on changes in market conditions ongoing. Developers should anticipate factors that influence changes in market conditions, such as attitudes and behaviors of consumers in choosing a house. One excample of this condition is development of Sunset Garden area located at Jalan Pura Mertasari Sunset Road, Denpasar, Bali which is this properties are able to attract consumers to buy houses in this area although this price of the house is quite expensive. Therefore, the research was conducted to determine factors that are considered in the selection of residential, consumer attitudes and behavior on the selection of a house and the relationship of consumer characteristics and attributes of products offered in this area. This study used research instruments such as questionnaires to obtain information on the characteristics of respondents and the four components of the attitudes and behavior of the level of confidence, the level of evaluation, the level of normative beliefs and motivation levels. The data analysis technique used is a factor analysis to identify the factors considered in choosing a house, attitudes and behavior analysis with Fishbein method and contingency coefficient analysis to determine the magnitude of the relationship variable product attributes and consumer characteristics. The results of this study indicate the factors that affect the house is 5 (five) factors, they are the location and the legality factors, supporting facilities factors, physical factors, factor values, and environmental factors. Attitudes and behavior are shown in choosing a house on Sunset Garden Zone fall into this category good enough. The results showed that there is a relationship between consumer characteristics and attributes of the product which the consumer's income level has the strongest ties to the variable price of the product.

EFEK KOMBINASI BEBAN AKSIAL DAN LENTUR SERTA VARIASI BENTUK DAN UKURAN LUBANG TERHADAP KONSENTRASI TEGANGAN PADA BALOK BAJA BERLUBANG M. Sukrawa; A. A. N. A. Angga Pradhana; G. Pringgana; K. Sudarsana; I G. A. Susila; I A. M. Budiwati
JURNAL SPEKTRAN Vol 7 No 2 (2019): Vol. 7 No. 2, JULI 2019
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (457.382 KB)

EFFECT OF COMBINED AXIAL AND BENDING LOADS AND VARYING SHAPES AND SIZES OF OPENING ON STRESS CONCENTRATION IN STEEL BEAM WITH WEB OPENINGABSTRACTResearch related to stress concentrations in perforated steel beams is usually carried out on simple beams without the influence of axial loads. In this study, modeling of 2-story steel frame structures was carried out to evaluate the effect of the combination of axial and flexural loads on the stress concentration around the opening in the steel beam. The observed opening includes square and circular opening, with and without reinforcement around the opening, with opening dimensions of 0.3 H, 0.5 H, and 0.7 H. H is the height of the beam. The types of reinforcement are All Around (AA), Long Horizontal (LH), and Doubler Plate (DP). The analysis results showed that 17% increase in beam axial force due to earthquake load, resulting in stress increase of 9% in square opening. The maximum stress around circular opening is smaller than that on the square one. The maximum stresses in the circular openings are 0.35 fy, 0.43 fy, and 0.69 fy for opening dimensions of 0.3 H, 0.5 H and 0.7 H, respectively. In the square opening, the maximum stress in 0.3 H opening is 0.57 fy, while for opening dimension of 0.5 H and 0.7 H the stresses exceeds the yield stress of the steel. Addition of AA and LH reinforcement in 0.5 H square opening, results in stresses lower than fy, whereas for the 0.7 H opening the reinforcement around the hole is ineffective.

PENGGUNAAN TERAK NIKEL SEBAGAI AGREGAT DALAM CAMPURAN BETON Wayan Mustika; I M. Alit K. Salain; I K. Sudarsana
JURNAL SPEKTRAN Vol 4 No 2 (2016): Vol. 4, No. 2, Juli 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Nickel slag is one kind of nickel ore smelting waste after the combustion process. Production of nickel slag PT. Antam Pomalaa Kolaka Southeast Sulawesi province during the period 2011-2012 period approximately 1 million tons of slag / year, with a nickel content in ore processing of nickel is between 1.80% to 2.00%. Visually, the physical form of this nickel slag aggregate resembles. Research on the use of nickel slag as an aggregate in concrete mixture is carried out using a cylindrical specimen with a diameter of 15 cm and 30 cm high by 48 pieces were tested at 28 days with some variations in the mix. Variation 01, 100% natural aggregate, variation 02, nickel slag as coarse aggregate, variation 03, nickel slag as fine aggregate, and variation 04, nickel slag as coarse aggregate and fine aggregate. Aggregate gradation in the mixture is set and is designed so that it meets the specifications gradation mix for maximum aggregate size of 40 mm. The composition of the concrete mixture used is a mixture of concrete with the ratio of cement : fine aggegate : coarse aggregate is 1: 2: 3 in a weight ratio with cement water ratio (fas) is set at 0.5. The results showed that when compared with the use of natural agregate, terak nickel is used only as a coarse agregate, a fine agregate only and combined agregate coarse and fine agregates resulting slump values ??fell 39.47%, an increase of 55.26%, and an increase of 34.21%. As a coarse agregate, terak nickel increases the compressive strength, modulus of elasticity and splitting tensile strenght, respectively for 42.27%, 19.37% and 23.46%. As fine agregate, nickel terak resulting value of compressive strength, modulus of elasticity and tensile strength divided down respectively by 16.75%, 6.70% and 24.58%. As a combination of coarse and fine agregate, terak nickel increases the compressive strength, modulus of elasticity and splitting tensile strenght, respectively for 10.31%, 9.26% and 6.70%.

HUBUNGAN ANTARA KARAKTERISTIK BETON MENGGUNAKAN AGREGAT KASAR LIGHTWEIGHT EXPANDED CLAY AGGREGATE (LECA) I Ketut Sudarsana; I Gede Astawa Diputra; Ni Made Dwi Ari Astuti
JURNAL SPEKTRAN Vol 6 No 1 (2018): Vol. 6, No. 1, Januari 2018
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4378.591 KB)

Lightweight concrete is a concrete made of lightweight aggregates and has a volume weight ranging from 1140-1840 kg/m3. This research was conducted to find out the correlation between concrete characteristics using LECA coarse aggregate that proportioned for lightweight concrete mixture according to SNI 03-3449-2002 standard with target compressive strength of 20 MPa, 25 MPa, and 30 MPa. The studied characteristics of the LECA concrete include the value of slump, volume weight, compressive strength, tensile strength, and modulus of elasticity. Each mix proportion was made 8 cylinder specimens of ASTM standard, so there were 24 test specimens for the three studied mixtures. The proportion of concrete mixture obtained for the target strength of 20 MPa is 1: 1.16: 2.46 with the value of cement water ratio (w/c) of 0.6, for the concrete strength of 25 MPa is 1: 0.91: 1.99 with the w/c of 0.52, and for the quality of the strength of 30 MPa is 1: 0.65: 0.94 with the w/c of 0.4. The test results obtained the mixed slump value of 155 mm, 145 mm, and 120 mm for the target concrete strength of 20 MPa, 25 MPa, and 30 MPa, respectively. The volume-weight value of LECA concrete ranges from 1564-1692 kg/m3 so that it is categorized as a lightweight concrete. The concrete compressive strength is 22 to 42% of the target concrete strength, and is categorized as a non-structural concrete. The split test tensile strength is 12 - 18% of its compressive strength. Increasing the value of LECA concrete compressive strength can also increase in its tensile strength and modulus of elasticity. Keywords: lightweight concrete, LECA aggregate, concrete characteristics, compressive strength, tensile strength.

PENGUJIAN KUAT LEKAT BETON BARU SELF COMPACTING CONCRETE (SCC) PADA BETON LAMA I Ketut Sudarsana
Jurnal Teknik Sipil Vol. 14 No. 3 (2017)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Perkuatan elemen struktur beton bertulang yang telah berdiri sering dilakukan dengan memperbesar dimensinya melalui penambahan ketebalan beton sebesar 50 sampai 80 mm. Perma-salahan yang sering dijumpai pada aplikasi metode ini adalah hasil pengecoran yang keropos se-hingga lekatannya kurang baik. Penelitian ini dilakukan untuk mengetahui kuat lekat dari beton ba-ru SCC pada permukaan beton lama. Sebanyak sembilan buah benda uji prisma ukuran 100x100x500mm dibuat dari dua jenis beton yang berbeda yaitu beton normal (f’c = 22 MPa) dan SCC (f’c = 26,4 MPa). Ada tiga variasi sudut interface (α) yang ditinjau yaitu 60o, 70o dan 75o dengan masing-masing variasi dibuat 3 buah benda uji. Sebelum dilakukan pengecoran beton SCC, permukaan miring beton lama terlebih dahulu dikasarkan sehingga membentuk alur-alur ver-tical, horizontal dan diagonal dengan kedalaman +/- 2,5 mm. Beban konsentrik tekan dikerjakan secara menerus dengan kecepatan standar test silinder beton sampai benda uji runtuh. Tegangan normal (σ) dan tegangan geser (τ) yang dihitung dari gaya aksial maksimum masing-masin benda uji dipakai untuk menentukan nilai kohesi (c) dan sudut geser () beton. Hasil pengujian menun-jukan bahwa nilai kohesi (c) beton SCC dan beton lama adalah sebesar 1.13 MPa dengan sudut ge-ser 53,2o.

Co-Authors A. A. Diah Parami Dewi A. A. N. A. Angga Pradhana A.A. Ayu Istri Laksemana Dewi A.A. Ayu Istri Laksemana Dewi A.A.G.A. Yana Amanda, Anastasia Anak Agung Gde Agung Asmara Anak Agung Gede Sutapa Arnawa, I Putu Artini, Ni Wayan Juli Ayu Swandewi Trikusuma Budiarsa, Bagus Bayu Caridad N. Barrameda D.M Priyantha Wedagama D.P.G Sugupta David Pramono Dewa Ayu Hendrawathy Putri Dewi, Ni Luh Putu Karina Dharma Putra Dharma Putra Dharmayanti, Gusti Ayu Putu Candra Dwi Wiranata Gd. Astawa Diputra Gede Pringgana Gilbert S. Arrieta Gusti Ayu Rai Mahayani Hendra Wijaksana I Dewa Gede Rat Dwiyana Putra I G. A. Susila I G.N.K. Udara I Gede Adi Susila I Gede Gegiranang Wiryadi I Gede Wira Sayoga I Gusti Ayu Putu Wegie Puryandhari I Gusti Ketut Sudipta I Gusti Ketut Wirawan I K. Ade Siswanta I Kadek Mertayasa I Made Alit Karyawan Salain I Nyoman Sutarja I P. Alit Suthanaya I Putu Laintarawan I Wayan Dana I Wayan Dana I Wayan Sudithayasa I.B. Dharma Giri I.G.N. Suditha I.N. Lanus Ida Ayu Budiwati Ida Ayu Made Budiwati Ida Bagus Dharma Giri Ida Bagus Ngurah Purbawijaya Ida Bagus Rai Widiarsa K. Astawa Ketut Ardhana Ketut Sidang Partayasa kusumawati, Yeni Angumasanita Luh Bella Veronica Luh Putu Eka Anggreni Made Respawan Made Sukrawa Made Yani Anggreni Marselinus Anggur Ngganggus Mayun Nadiasa Mulya Dewi N.L.P. Eka Agustiningsih Nanda Dwi Wulan Sari Ni Kadek Armini Ni Luh Gede Sri Susanthi Ni Luh Putu Pradnyadewi Ni Made Anggreni Ni Made Dwi Ari Astuti Ni Made Tutarani Ni Nengah Selasih Ni Putu Candra Prastya Dewi Ni Wayan Novi Suryantari Novitayanti, Ni Wayan Putera Kumarayasa Mudita Putu Agus Nusada Putra Putu Deskarta Putu Didik Sulistiana Putu Hendra Kusuma Putu Lokantara Rahayu Ria Kusumawati Saputra, I Gede Yoga Dana Sugiani, Ni Kadek Ari Suryadnyani, Ni Nyoman Sri Suryatini, Ni Luh Gede Utami, Luh Ketut Ari Wayan Mustika Yohanes Angga Wijaya Yuliartini, Ni Made

Title

Found 44 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 44 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 44 Documents
Search