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All Journal Jurnal Mahasiswa Jurusan Teknik Sipil Rekayasa Sipil
Desy Setyowulan
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Civil Engineering, Building, Construction & Architecture

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Journal : Rekayasa Sipil

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Pengaruh Gempa Terhadap Perilaku Jembatan Cable Stayed Tengku Fisabililah Riau Dengan Time History Analysis Natalia Vin Kristin; Ari Wibowo; Desy Setyowulan; Edhi Wahyuni S.
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.10

Abstract

Tengku Fisabilillah Riau Bridge is one type of a cable stayed bridge that located in Indonesia. Indonesia is among one of the countries that are prone to earthquakes. Effects of earthquake can change the structure of the bridge. These effects can be analyzed using time history analysis.The first step begins with the modeling of bridge structures. But the dimensions and material specifications of the bridge’s structure has been determined by researcher. After modeling the structure of the bridge is completed, input the data of the time history. This data is taken from the earthquake of Hyogo-Ken Nanbu in Japan. Next, the changes of the structure of the bridge caused by the earthquake such as mode shapes, displacement, and stress that occur will be analyzed. Results of the analysis showed that there were many mode shapes generated, the largest mode shapes is on the Y-axis at the direction of the bridge. For displacement, the maximum displacement occurs direction in Z-axis. The deflection that caused by the earthquake is largest than the allowable maximum deflection of the bridge. While, the maximum stress occurs on the cable. The force which is caused by the earthquake is largest than the allowable maximum force owned section.
Prediction of Creep Concrete in Lightweight Concrete with Pumice as Coarse Aggregate Maulidyah, Chairah; Wisnumurti; Desy Setyowulan
Rekayasa Sipil Vol. 18 No. 3 (2024): Rekayasa Sipil Vol. 18 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2024.018.03.7

Abstract

Concrete creep is the additional strain that develops in concrete under constant stress over time. In this study, lightweight concrete is created by entirely replacing coarse aggregate with pumice to reduce the concrete's overall weight. The research involves producing 18 cylindrical concrete test specimens with a diameter of 150mm and a height of 300mm. These specimens include three normal and three lightweight concrete samples for each 90-day creep test and three normal and three lightweight concrete samples for compressive strength tests on the 14th and 28th days. The variation in aggregate proportions affects the aggregate content and weight in each type of concrete, influencing their properties. This is evident in the creep curves for the lightweight concrete samples. Similarly, the differences in the creep curves for normal concrete samples are attributed to stress distribution during loading. The strain acceleration between normal and lightweight concrete under load remains similar until the final loading day at 90 days. However, lightweight concrete significantly increases creep value after prolonged loading, rising by 35.85%. In contrast, normal concrete exhibits a creep increase of 16.51% from the beginning of loading until the 90th day.
Co-Authors Anafebri Prameswari Ari Wibowo Ari Wibowo Bhondana Bayu Brahmana Kridaningrat Chintya Aulia Khoirunisa Deanna Ramadhani Sanjaya Devi Nuralinah Edhi Wahyuni S. Erwin Naela Sundusi Eva Arifi Fajar Shodiq Farhan Al Farisi Indra Waluyohadi Jehezkiel Dyero Kuswalalita Mangesti Janarka M. Gary Irhami Azka El Syahroni Maulidyah, Chairah Mohammad Taufik Hidayat Muhammad Afif Dhiya Ulhaq Nabilah Elsa Azzar Natalia Vin Kristin Panggabean, Jeremia Aditya Roland Martin Simatupang Sefia Zanufa Khoirima Syahrul Ramadhan Susanto Putra Wisnumurti