23 research outputs found
Kajian Data Eksperimental Penggunaan Low Cost Rubber Base Isolator-Strip Pada Rumah Sederhana Di Daerah Rawan Gempa
No full textKebutuhan tempat tinggal yang layak huni dari tahun ke tahun semakin meningkat dari segi kuantitas. Hal ini perlu diimbangi dengan peningkatan kualitas baik penggunaan material maupun sistem konstruksi bangunan yang ada. Mengingat Indonesia merupakan salah satu negara yang memiliki wilayah kegempaan yang sangat tinggi. Strategi mengurangi efek bencana gempa dilakukan dengan standarisasi desain bangunan dan pemutakhiran peta zonasi gempa tiap 3 tahun sekali. Dalam memenuhi standarisasi desain bangunan dilakukan beberapa penelitian base isolation untuk tempat tinggal. Pembuatan base isolation menggunakan karet sebagai bahan utama dan material tambahan untuk memperkuat kekakuan vertikal seperti fiber. Penggunaan fiberglass strip pada rubber base isolator diharapkan memenuhi kriteria biaya murah dan kinerja yang baik.
Dalam penelitian ini menggunakan karet alam dengan hardness 35 Shore A. Jenis fiberglass yang digunakan sebagai material penguat adalah Net. Menggunakan matrik Chemlok sebagai pembentuk komposit fiberglass. Dimensi LCRBI-S adalah tipe persegi dengan beban layan rumah sederhana. Tahapan pengujian yang dilakukan pada benda uji antara lain : Vertical Stiffness Test, dan Horizontal Stiffness Test.
Hasil kinerja LCRBI-S pada rumah sederhana dengan program bantu ETABS menggunakan Linier Time History Analisys, menunjukkan bahwa sampel LCRBI-S 1 dan 2 untuk arah X, mampu mereduksi Gempa Elcentro dan Kern County berturut-turut sebesar 54,7% dan 69,3%. Sedangkan untuk arah Y, sampel LCRBI-S 1 dan 2 mampu mereduksi respon gempa Elcentro dan Helena berturut-turut sebesar 32% dan 5% terhadap bangunan fixed base. Sedangkan sampel 3 dan 4 untuk arah X, mampu mereduksi maksimum sebesar 73% untuk gempa El Centro. Sedangkan untuk arah Y, sampel LCRBI-S 3 dan 4 mampu mereduksi gempa El Centro dan Helana, dengan tingkat reduksi berutur-turut sebesar 60,9% dan 15,7%.. Hal ini menunjukkan LCRBI-S dari fiberglass jenis Net bisa menjadi alternatif base isolator untuk rumah sederhana.
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The need for livable housing from year to year is increasing in terms of
quantity. This needs to be balanced with improving the quality of both the use of
materials and the existing construction system of buildings. Given that Indonesia
is one of the countries that has a very high seismic region. The strategy to reduce
the effects of earthquake disasters is done by standardizing building design and
updating earthquake zoning maps every 3 years. In meeting the standardization of
building design, several base isolation studies were conducted for residence.
Making base isolation uses rubber as the main material and additional material to
strengthen vertical rigidity such as fiber. The use of fiberglass strips on rubber
base insulators is expected to meet the criteria of low cost and good performance.
In this study using natural rubber with 35 Shore A hardness. The type of
fiberglass used as reinforcing material is the Net. Using Chemlok's matrix as a
fiberglass composite forming. The LCRBI-S dimension is a square type with a
simple home service load. The stages of testing carried out on the test object
include: Vertical Stiffness Test, and Horizontal Stiffness Test.
The results of LCRBI-S performance in simple houses with ETABS
assistive programs use Linear Time History Analysis, indicating that LCRBI-S 1
and 2 samples for X direction are capable of reducing the Elcentro and Kern
County Earthquakes by 54.7% and 69.3 %. While for direction Y, LCRBI-S 1 and
2 samples were able to reduce the response of the Elcentro and Helena earthquake
by 32% and 5% respectively to the fixed base building. While samples 3 and 4 for
direction X, can reduce the maximum by 73% for earthquake El Centro. Whereas
for Y direction, LCRBI-S 3 and 4 samples are able to reduce El Centro and
Helana earthquakes, with successive reduction levels of 60.9% and 15.7%. This
shows LCRBI-S of fiberglass Net type can be alternative base isolator for simple
houses
Penerapan Rekayasa Nilai Pada Proyek Pembangunan Rumah Sakit Umum Citra Medika Kecamatan Tarik Kabupaten Sidoarjo
Full text linkPenetapan eskalasi oleh Pemerintah pada tanggal 1 Oktober 2005 berpengaruh cukup signifikan pada bidang konstruksi. Rencana Anggaran Biaya yang sudah direncanakan awal menjadi lebih mahal pada saat akan dilaksanakan. Penerapan rekayasa nilai pada proyek Pembangunan Rumah Sakit Umum Citra Medika Kecamatan Tarik Kabupaten Sidoarjo ini untuk mengetahui bagaimana altematif perencanaan yang paling optimum dan berapa besamya penghematan yang bisa diperoleh. Analisa dilakukan dengan menggunakan rencana kerja rekayasa nilai yang meliputi; Tahap Informasi, Tahap Kreatif, Tahap Analisa, dan Tahap Rekomendasi. Untuk mendapatkan hasil perencanaan yang baik digunakan analisa keuntungan dan kerugian, analisa Biaya Daur Hidup Proyek, dan analisa multi lcriteria dengan Metode AHP. Hasil yang diperoleh dari Tugas Akhir ini adalah altetnatif perencanaan yang optimum dengan penghematan biaya proyek sebesar Rp. 871.139.905 ( Delapan ratus tujuh puluh satu juta seratus tiga puluh sembilan ribu sembilan ratus lima rupiah) atau 8% dari total biaya pelaksanaan proyek.
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Stipulating of Eskalasi by Government of at date of 1 October 2005 having an effect on enough signifikan of at construction area. Cost Estimate of Expense is planned by early becoming costlier at the time of will be executed , applying of value engineering at project Development of Public Hospital of Citra Medika of Tarik Subdistrict of Regency of this Sidoarjo to know how alternative of most optimum planning and how big its is thrift which can be obtained Analysis conducted by using plan work of value engineering covering ; Information Phase, Creative Phase, Phase Analyse, and Phase of Recomendation. For get result of good planning used by a advantage and disadvantage analysis, Life Cycle Cost analyse, and analyse multi of criterion with Method AHP . Result obtained from Final Project is alternative of optimum planning with cost-saving of project of equal to Rp. 871.139.905,- (Eight hundred seventy one million one hundred threety nine thousands nine hundreds five rupiah) or 8% from total cost of project executio
PERFORMA NON-LINIER TIME HISTORY ANALISYS (NLTHA) STRUKTUR FIXED BASE RUMAH SEDERHANA DI DAERAH RAWAN GEMPA
Full text linkIndonesia adalah negara yang dilalui dua lempeng tektonik, dimana daerah lintasannya sering
terjadi gempa bumi. Salah satu daerah yang dilalui lempeng tektonik yaitu pulau Jawa, dimana
terdapat banyak bangunan tempat tinggal baik yang sederhana maupun rumah mewah. Rumah
sederhana yang ada perlu di evaluasi kinerjanya terhadap gempa yang pernah terjadi. Tujuan
analisis ini adalah untuk mengetahui rumah sederhana tersebut masuk dalam level kinerja
struktur bagaimana sesuai kinerja ATC 40. Menggunakan Program Bantu ETABS dan beban
non-linier kasus gempa El Centro dan Peraturan SNI 1726:2012. Hasil analisis dari rumah
sederhana dengan balok sloof 15x30 cm, kolom 15x15 cm dan balok ring 15x25 cm dengan
Non-Linier Time History Analisys (NLTHA) pada struktur fixed base menunjukan performa
semua komponen struktur masih berada pada rentang A-IO, sehingga dapat dikatakan dalam
pengaruh pembebanan gempa yang diberikan elemen-elemen struktur masih bersifat elastis
Analysis of Waste Orange Peel Ash as Cement Substitution in Concrete Mix: Analis Pengujian Bahan Abu Limbah Kulit Jeruk Sebagai Substitusi Semen Pada Campuran Beton
No full textCement production significantly contributes to high carbon emissions and energy consumption, creating an urgent need for sustainable alternatives. This research analyzes the utilization of waste orange peel ash as a partial substitution for cement in concrete mixtures. The ash was produced through the calcination process of orange peel waste and sieved to meet fineness standards. Tests conducted include fineness, specific gravity, setting time, compressive strength, and splitting tensile strength, with substitution levels of 0%, 5%, 10%, 15%, and 25%. The results indicate that orange peel ash exhibits pozzolanic-like physical characteristics and can function as a cement substitute at certain proportions. Lower substitution levels (2.5–10%) still provided acceptable compressive strength for structural concrete, while higher levels (≥15%) significantly reduced performance. Therefore, waste orange peel ash shows potential as an eco-friendly alternative material, supporting circular economy principles and reducing the environmental impact of the construction industry
Penanganan Genangan MenggunaPenanganan Genangan Menggunakan Metode Biopori di Taman Tol Simpang Lawangkan Metode Biopori Di Taman Tol Simpang Lawang
No full textMasalah genangan air di kawasan perkotaan, termasuk di area taman tol, merupakan tantangan yang perlu diatasi untuk mencegah kerusakan infrastruktur dan dampak negatif terhadap lingkungan. Penelitian ini bertujuan untuk menganalisis efektivitas metode biopori dalam mengatasi genangan di Taman Tol Simpang Lawang. Biopori merupakan teknologi sederhana yang memanfaatkan lubang resapan untuk meningkatkan infiltrasi air ke dalam tanah, mengurangi limpasan permukaan, dan mendukung konservasi air. Metode penelitian meliputi analisis topografi, pengujian infiltrasi tanah, serta penerapan lubang biopori di area taman. Hasil penelitian menunjukkan bahwa penerapan metode biopori mampu secara signifikan mengurangi genangan, dengan peningkatan kapasitas infiltrasi hingga 70% dibandingkan sebelum pemasangan. Selain itu, metode ini memberikan manfaat tambahan berupa peningkatan kesuburan tanah dan pengurangan limbah organik melalui proses dekomposisi. Penelitian ini menyimpulkan bahwa metode biopori merupakan solusi yang efektif, ekonomis, dan ramah lingkungan dalam penanganan genangan di area taman tol. Rekomendasi diberikan untuk pengembangan skala penerapan biopori di lokasi serupa sebagai bagian dari strategi pengelolaan lingkungan perkotaa
Analysis of Material Feasibility Testing of Ceramic Waste Fractions as a Substitute for Coarse Aggregates in Concrete: Analisis Pengujian Kelayakan Material Pecahan Limbah Keramik sebagai Pengganti Agregat Kasar pada Beton
No full textThe ceramic industry generates considerable waste, including leftover raw materials, defective products, and ceramic fragments that fail to meet quality standards. This study investigates the feasibility of utilizing ceramic waste as a coarse aggregate substitute in concrete, focusing on its physical characteristics. Three fragment sizes—1 cm, 1.5 cm, and 2 cm—were tested using the Impact Test Value (ITV), Los Angeles Abrasion Test, specific gravity tests (bulk, SSD, and apparent), water absorption, and bulk density. All sizes met the eligibility requirements for coarse aggregate under SNI and ASTM standards. The average ITV was 3.17%, and the Los Angeles abrasion value was 29%. Specific gravity and water absorption were comparable to conventional aggregates. These results indicate that ceramic waste has strong potential as an environmentally friendly alternative to natural coarse aggregate in concrete construction, offering both sustainability benefits and comparable performance to traditional materials
Analysis of the Feasibility Test of Artificial Plastic Waste Aggregate (PET) Material with a Sand Mixture as a Substitute for Coarse Aggregate in Concrete: Analisis Pengujian Kelayakan Material Artificial Agregat Limbah Plastik (PET) Dengan Campuran Pasir Sebagai Pengganti Agregat Kasar Pada Beton
No full textThe increasing amount of Polyethylene Terephthalate (PET) plastic waste that is difficult to decompose naturally causes serious environmental problems. One alternative utilization is to use PET plastic waste mixed with sand as an artificial aggregate to replace coarse aggregate in concrete. PET plastic waste and sand are processed through heating and molding into 2 cm sized granules. Tests include Impact Test Value, Los Angeles Abrasion Test, specific gravity, water absorption, and aggregate volume weight. The test results show that the mixture of plastic waste (PET) with sand meets the eligibility requirements as a coarse aggregate based on the SNI and ASTM standards used. The average Impact Test value of 8.5%, Los Angeles abrasion 34.73%, bulk specific gravity 2.49, SSD 2.53, and water absorption 1.71% are declared to meet the standards
Evaluation of the Implementation of the Construction Safety Management System (CSMS) on the Waron Hospital Project : Evaluasi Implementasi Sistem Manajemen Keselamatan Konstrusksi (SMKK) Pada Proyek Waron Hospital
No full textUrban infrastructure in Surabaya is rapidly developing, marked by the increasing number of high-rise building constructions. In such projects, the implementation of Occupational Safety and Health (OSH) is essential to ensure worker safety and well-being. This study analyzes the application of the OSH program in the Waron Hospital construction project. Data were gathered through questionnaires and interviews, involving 48 respondents, and analyzed using descriptive statistics. The findings reveal several challenges in implementing the OSH program, such as limited company budgets for OSH, low project contract value, and workers’ lack of awareness about OSH’s importance
Handling Flooding Using the Biopori Method in the Lawang Junction Toll Park: Penanganan Genangan Menggunakan Metode Biopori di Taman Tol Simpang Lawang
No full textThe Simpang Lawang Toll Park is planned as a green open space along the Pandaan–Malang toll road, but faces waterlogging issues during the rainy season due to uneven land contours and lack of natural drainage. This study aims to analyze rainfall, calculate the volume of accumulated water, and design a biopore infiltration system as a solution. The methods include calculating average annual rainfall using the arithmetic method, hydrological analysis using volume and runoff coefficient formulas, and estimating the required number of biopore holes. The average annual rainfall from 2017 to 2021 was 226.3 mm, resulting in approximately 158.67 m³ of water on a 2,005.71 m² area. Using biopores with a diameter of 50 cm and a height of 102 cm, around 502 holes are needed for optimal rainwater absorption. Biopore technology has proven to be effective, environmentally friendly, and applicable in the design of green spaces along toll road infrastructure
Structural Analysis of a Hospital Building Based on SNI 1726:2012 and SNI 1726:2019 (Case Study of Waron Hospital, Surabaya): ANALISIS STRUKTUR BANGUNAN GEDUNG RUMAH SAKIT BERDASARKAN SNI 1726:2012 DAN SNI 1726:2019 (STUDI KASUS WARON HOSPITAL SURABAYA)
No full textThis study compares the seismic performance of a 12-story hospital building with vertical irregularities in Surabaya, analyzed using the response spectrum method in SAP2000 V22, based on SNI 1726:2012 and SNI 1726:2019. SNI 2019 results in a 12.5% higher dynamic base shear (±5,812.6 kN) than SNI 2012 (±5,170.6 kN) due to increased seismic parameters (SDS: 0.607 g to 0.64 g; SD1: 0.532 g to 0.57 g). Maximum interstory drifts under SNI 2019 (∆x ≈56 mm, ∆y ≈95 mm) exceed SNI 2012 (∆x ≈52 mm, ∆y ≈85 mm) but remain below the ≤2.5% story height limit, with no extreme soft story. Modal mass participation exceeds 90% (SumUX ≈95.5–96%, SumUY ≈98–98.5%), validating the analysis. SNI 2019 enhances design conservatism. 
